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17,634 | SQL Server 2005 - SSIS Package Won't Execute | Environment: Windows Server 2003 R2 Standard x64 Service Pack 2 SQL Server 2005 SP2 (9.00.3077.00) Enterprise Edition (64-bit) Trying to install and execute an SSIS package on a development environment, getting the following error: Executed as user: NIHR\svcaccsqlagent. ....00.3042.00 for 32-bit Copyright (C) Microsoft... | Does your SSIS package contain a DateTime type variable? Read this Microsoft support article: You receive an error message when you try to load an SSIS package that contains a DateTime type variable in SQL Server 2005 This problem occurs because the value of the DateTime variable is saved in string format when you save... | 2 | 1 | 3,210 | 2009-06-02T10:58:55.303 | database_errors | serverfault.com | |
473,483 | How to allow cron to send an email attachment? | SELinux is preventing cron from attaching a log file in the email with the following error: notice kernel [ 7148.923034] type=1400 audit(1359466501.857:5): avc: denied { read } for pid=3182 comm="mailx" name="attachment" dev="dm-1" ino=4140 scontext=system_u:system_r:system_mail_t:s0-s0:c0.c1023 tcontext=system_u:objec... | You have three options (well, three that I can think of right now): 1. File a bug and wait for an update to the policy package which does allow this. 2. Change the context of the file you're attempting to attach so that SELinux lets it get attached. 3. Put SElinux in permissive mode, so it will log the fact that it wan... | 1 | 0 | 2,764 | 2013-01-29T14:32:25.707 | infrastructure | serverfault.com | |
84,159 | How to handle big data update based on excel spreadsheet | Scenario Select-based data is exported from DB to Excel spreadsheets. Some manual work is done on the excel files (filling missing data). Changed data from excel files is updated back to DB. Environment Oracle DB Original table is about 7 million rows Can't use import tools in SQL Developer etc, must be a plain SQL scr... | A Fast Method A probably faster way to do this is the following: Provide the data in a database table Execute a MERGE statement that merges the data from this table into the source table To provide the data in a database table you can use sql loader or [external tables]. http://docs.oracle.com/database/121/SQLRF/statem... | 2 | 6 | 7,732 | 2014-12-03T07:36:44.970 | data_quality | dba.stackexchange.com | |
21,953 | Optimization problem: compound clustered keys, flag conditions and index-merge | Three tables: [CODE] : with columns: [CODE] [CODE] [CODE] : with columns: [CODE] [CODE] [CODE] with columns: [CODE] [CODE] I can't find good indexes for the join: [CODE] I tried a covering index on [CODE] and it's used but not with spectacular results. Some combinations of indexes on the [CODE] table produce execution ... | This pains me... I've had to use temp tables with InnoDB before. Load them with filters, create an index, join these temp table. The problem as I reckon is if that InnoDB only has Nested Join algorithm: the grown-up RDBMS query optimisers have more to use. This is based on trying to run Data Warehouse type loads on Inn... | 11 | 3 | 236 | 2012-08-03T11:02:46.100 | database_errors | dba.stackexchange.com | |
14,738 | VMWare serial ports | Can someone tell me the difference between the different ways virtual serial ports can be configured using VMWare Infrastructure? For instance: What is the difference between "use output file" and "use named pipe"? Can "Use Output File" be used to connect 2 machines? When using a "named pipe", can that just be an arbit... | A Named pipe virtual serial port behaves more like a traditional serial port - with both input and output, while an 'Output file' is mostly useful for quickly capturing program output to a file. An "Output file" would not be useful for bidirectional communication between machines. The actual name of the named pipe is d... | 2 | 2 | 2,731 | 2009-05-29T16:00:06.803 | infrastructure | serverfault.com | |
41,178 | Is paid Apple Developer Account needed to run Selenium Appium Automation tests on real apple devices like iPhone or iPads? | So I am working on a project which comprises of the software web application, built on Python 3.7. Currently, it supports pc and mac platforms only with various browsers, and we have automated it using Python-Selenium-Behave. Now, we are making this application mobile responsive so that it can work on Android as well a... | Yes, you need apple developer ID , to build and deploy your project using Xcode on your real iOS device. | 2 | 1 | 978 | 2019-10-11T18:49:01.817 | data_quality | sqa.stackexchange.com | |
785,158 | How to use 2 IPs on one Apache server | I have two IPs (and domains) on my dedicated Linux server (Debian). I'm able to access the primary domain. But when I try to access the 2nd one, I'm directed to the primary site. In [CODE] , I have this: [CODE] I restarted the network: [CODE] Then I made two new [CODE] files in [CODE] , one for each domain. site1.conf:... | You need matching DNS entries. It appears both sites may be resolving to the same IP. The first VHOST defined on each IP address will be the default site, and handle any sites that don't resolve. If you want to use IP based domains, you need to match your DNS configuration. Check the results of [CODE] and/or [CODE] to ... | 0 | 1 | 2,306 | 2016-06-21T00:08:32.173 | infrastructure | serverfault.com | |
225,870 | Migrating a SQL Server 2014 AG to a new 2017 AG | Our current production server runs on SQL Server 2014 AlwaysOn AG. We are planning to upgrade it to SQL Server 2017 AlwaysOn. Due to the configuration issues with the present cluster, we can not use the existing cluster. The production server has 52 databases with a total size of 2 TB. The databases servers an online s... | The plan sounds great. You just need to include a deep UAT (User Acceptance Test) as it is possible that the way that the new version interprets the sentences is a bit different. For example, every version is going to be more strict with ending each sentence with ; We made similar migration almost one year ago from 200... | 3 | 0 | 157 | 2018-12-27T17:48:35.817 | database_errors | dba.stackexchange.com | |
99,980 | Develop fast and buggy, then correct errors or be slow, careful for each line of code? | Possible Duplicates: Frankly, do you prefer Cowboy coding? Prototyping vs. Clean Code at the early stages Good design: How much hackyness is acceptable? Does craftsmanship pay off? Which is better: Coding fast, not caring about possible errors and limits, maybe forgetting to check the input, NULL returns etc, just to c... | This depends ENTIRELY on the type of work that you're doing. For a lot of situations Test-Driven-Development, like you're currently doing, is definitely the way to go. Overall you'll spend less time on the project since you're not having to constantly go back and fix bugs and edge cases that you didn't account for the ... | 57 | 66 | 7,372 | 2011-08-10T14:43:49.867 | data_quality | softwareengineering.stackexchange.com | |
66,236 | SQL Server AlwaysOn Error_number 35206 | I've joined a Ecommerce business where they use SQL Server 2012 AlwaysOn for HADR and this is the first time I've come across supporting this technology. The Sql Server log on both nodes gets spammed almosy daily with the error messages shown below. What do these errors mean? Are they benign? I asked the Infrastructure... | These errors mean you had a connection timeout. The subsequent messages are a result of that. In a multi-subnet environment, each AG will have an IP address in each subnet and be registered in DNS. The DNS server returns multiple IP addresses when queried. Only one will be online. SQL tries all the ip address, serially... | 6 | 1 | 16,923 | 2014-05-30T10:20:22.710 | bi_errors | dba.stackexchange.com | |
469,324 | Postfix no 220 is being returned on telnet localhost 25 | I'm having trouble configuring the postfix server, currently when I issue: telnet myhost 25 outputs: [CODE] And I'm not receiving 220 line. This is my main.cnf [CODE] master.cf [CODE] | You have scrambled the config quite thoroughly for a beginner; this means any number of things can go wrong. Start by verifying that postfix is actually listening on port 25; [CODE] should show port 25 on either all IPs or a single IP. If you had the bad fortune to touch master.cf too, you may have messed things up fur... | 0 | 1 | 5,038 | 2013-01-15T16:08:22.027 | infrastructure | serverfault.com | |
1,061,350 | Best practices for replacing a server while not breaking any URLs and not having any downtime? | I tried searching for an answer to this problem but the search term is so broad that nothing helpful popped up. We have an old server and we want to replace it with a new one (both are physical machines). Both are working, both have their own IP address, subdomain, and SSL cert, and both have the same copy of files tha... | Both are working, both have their own IP address, subdomain, and SSL cert, and both have the same copy of files that are hosted. If both are exactly the same from the outside (serving same content at same URLs, etc.) and you have tested external connectivity to both, you should need only to change the IP addresses of t... | 0 | 1 | 148 | 2021-04-23T18:57:59.947 | api_errors | serverfault.com | |
605,946 | Kernel stack trace to source code lines | Given a kernel stack trace as below, how do you determine the specific line of code where the issue occurred? [CODE] While I have no trouble finding the function call -- but translating __link_path_walk plus an offset to an actual line number is the difficult part. Assuming this is for a standard distribution-provided ... | Given an unstripped [CODE] with debugging symbols (typically included with "linux-devel" or "linux-headers" packages matching your kernel version), you can use the [CODE] program included with binutils to translate addresses to lines in source files. Consider this call trace: [CODE] Then the address of the caller in [C... | 27 | 18 | 33,963 | 2014-06-18T06:08:39.340 | infrastructure | serverfault.com | |
239,482 | Making sure balance field is always consistently updated with triggers | This is my database schema, related to the problem. This is one of the triggers: [CODE] Basically from my app I insert records into table Bets, Bonuses, Withdrawals and Deposits, then the rest of the work is done by triggers. My questions is whether the mechanism I used will guarantee consistency in all cases, or shoul... | First, this UPDATE is buggy: [CODE] because it updates the entire "Users" table, which is obviously not what's wanted. Let's assume that a WHERE clause is added and the code becomes: [CODE] This code is subject to a race condition under the default isolation level (Read Committed). Say this transaction is T1 and anothe... | 2 | 4 | 1,233 | 2019-05-30T18:37:52.257 | warehouse_errors | dba.stackexchange.com | |
78,032 | How to handle the problem of modified encrypted files | I have a simple encryption/decryption application that I am testing to learn more about security. I found out that if the user modifies the encrypted file, then decryption fails because the hashing algorithm doesn't generate back the original content. What are the common practices that deal with the problem of encrypte... | Well, any file altered after encryption is going to generate funny results. The only way I would know of detecting such changes would be to store a hash of the encrypted file when you do the encryption, and then compare that hash to the hash of the encrypted file prior to decryption. If there are any changes, the hashe... | 0 | 6 | 279 | 2011-05-21T05:25:30.097 | api_errors | softwareengineering.stackexchange.com | |
614,833 | Tomcat crashing after a few hours | I'm running a CentOS 6.5 64 bit OS with Tomcat and one web application. I use Apache (httpd) as a reverse proxy (ProxyPass) to the application. Until recently, it (Tomcat) has been running fine without crashing. Recently, I added a Joomla site and PHP (obviously) to the http server. It was shortly after that where I st... | It seems that there is no more memory available to use on your system. Please check if you have swap memory on your system with below command [CODE] output should be as below if you have swap enabled. [CODE] If you can't see swap in your file, you have to create swapfile. Here is a guide to create and enable swapfile. ... | 2 | 5 | 5,593 | 2014-07-23T13:12:31.683 | pipeline_ops | serverfault.com | |
491,741 | Windows Server 2012 RDS Unable to publish RemoteApps. Unable to get list of programs | I have [CODE] , [CODE] , [CODE] and a collection set up. When I try to publish Remote Apps to the collection through the Server Manager it just loops over and over when trying to get list of available applications. I've been letting it run for over 24 hours but no application gets listed. I can't see any error logs eit... | Problem solved. Files where missing from the [CODE] folder. | 0 | 1 | 4,754 | 2013-03-27T09:17:16.957 | infrastructure | serverfault.com | |
312,482 | virtio /proc/net/dev | we are doing some VM (citrix-xen) / real machine benchmarks at university and ran accross a strange behavior. we used netperf's stream test to meassure the performance between the two machines. both resulted in the same value of 940 mbit, but the output of [CODE] was different: [CODE] I tried to reproduce this situatio... | Yes. The virtual network device can send data faster than the advertised speed by the NIC. You can also benchmark this over the local host to see this. Some great references on benchmarking and troubleshooting virtual networks: http://wiki.xen.org/xenwiki/Network_Throughput_Guide http://openvswitch.org/papers/hotnets20... | 1 | 0 | 690 | 2011-09-17T11:08:09.540 | infrastructure | serverfault.com | |
381,082 | Msysgit GPG error during commit signing | I'm getting the following error on Windows with msysgit. Doesn't matter whether or not I am doing it from the command prompt or the BASH bundled with Git: gpg: error loading `iconv.dll': The specified module could not be found. Google hasn't yielded any good results yet. Any idea of how to get around this? I see libico... | See this page for the dll and how to install it The directions are as follows: Installing iconv.dll To support different languages and character sets, Microsoft Windows versions of GnuPG make use of a DLL called "iconv.dll". This DLL has been written by the GNU project too and is used by several applications ported fro... | 1 | 1 | 267 | 2012-04-19T11:34:44.910 | infrastructure | serverfault.com | |
1,108,610 | iptables DROP policies not working with allowed incoming http connection | I have a task to secure the nginx server, which is working with docker-container as a reverse proxy on port 8732 . I have to disable all incoming connections except port 80 for issuing SSL certificates and, of course, SSH connections. I've set some rules, but they aren't working with INPUT and OUTPUT default policies s... | Your [CODE] chain is missing the rule to allow established connections from port 80. Use [CODE] Your [CODE] output is from [CODE] , which is a completely different tool. The [CODE] output shows which processes have active listening TCP sockets. Whenever you run a daemon that opens a listening socket, it always appears ... | 1 | 0 | 1,441 | 2022-08-19T15:10:30.443 | pipeline_ops | serverfault.com | |
972,430 | How to update a Google Cloud Group instance | I've started to use Google Cloud Platform and I got some troubles understanding how it works. Here's what I've done so far : I've created an Google Compute Instance using Wordpress Click-to-deploy image I've made a snapshot of this instance I've made an image from this snapshot I've made an instance template with this ... | Create a new instance template and roll it out to the instance group . Tune the updater with your instance replace preferences. Updating static content like CSS may be a different process. Upload uniquely named files to CDN or other static file web server. Reduces the number of instance deploys, and allows uploads stra... | 0 | 1 | 119 | 2019-06-21T16:39:48.207 | infrastructure | serverfault.com | |
101,144 | Oracle RAC, unable to connect to node vip | I have a new oracle RAC installation running 11.2.0.4 on redhat 6. I can connect to sqlplus from a client using the node name but it is timing out when i use the node vip eg. first one works, second one doesn't [CODE] i can successfully ping and run an nslookup against the VIP the local_listener looks like this [CODE] ... | The issue turned out to be with the VIP addresses not being allowed to be accessed via port 1521 due to our firewall policy. These IPs are now permitted and the problem has been resolved. thanks to Balazs for all the help/ | 1 | 0 | 6,783 | 2015-05-11T10:17:22.473 | database_errors | dba.stackexchange.com | |
25,619 | Convert Log table days in a state | This is simplified but represents the problem I am trying to solve. We have a table containing 5-10 million rows in a format similar to the following... [CODE] And I am trying to convert it into this [CODE] *It doesn't matter what the query returns for [CODE] (the only box move in without a box move out) as it is disca... | [CODE] SQLFiddle example: http://www.sqlfiddle.com/#!4/dff2c/1 | 2 | 5 | 57 | 2012-10-08T16:23:06.987 | warehouse_errors | dba.stackexchange.com | |
1,107,371 | When using `xfrm` and strongswan for an ipsec tunnel, where are the routes stored? | I am using strongswan to establish an ipsec connection in tunnel mode. When the client connects to the gateway, strongswan receives a new ipv6 address assigned to the client from the server. All traffic send to the tunneled network is then send from this ip6 address. The ipv6 address is assigned to the client's [CODE] ... | https://docs.strongswan.org/docs/5.9/howtos/introduction.html#_routing tells: On Linux, strongSwan installs routes into routing table 220 by default and hence requires the kernel to support policy based routing. (And it's also using priority 220 to lookup table 220.) So for IPv6 this should be seen with: [CODE] or [COD... | 2 | 2 | 1,420 | 2022-08-04T09:13:34.730 | infrastructure | serverfault.com | |
111,473 | Speeding Up MySQL Full Text Search | I am doing a complex full text search on a table with 130k+ records. It takes .5 seconds to complete. I was hoping it would be a bit faster. Is there anything I can do to make it faster? Below is the query along with explain + relevant tables [CODE] | The optimizer rarely does anything useful [CODE] constructs. What you can attempt to do is Get [CODE] from each of the [CODE] [CODE] the results [CODE] back to the necessary tables to get the desired field. Something like this: [CODE] To further explain: Each [CODE] in the [CODE] should efficiently use the [CODE] index... | 1 | 1 | 931 | 2015-08-18T22:30:56.843 | database_errors | dba.stackexchange.com | |
11,112 | Correct way to handle 'optional' array of resources in Terraform | In one of our our Terraform modules we have a variable to optionally create a load balancer. As part of this we create some subnets thusly: [CODE] Now, if we are creating a loadbalancer I want to output the first subnet for later use in other modules: [CODE] This is fine if we create the loadbalancer, but not if [CODE]... | Could you wrap the assignment to value using the try type conversion function ? [CODE] | 1 | 2 | 4,091 | 2020-03-19T12:45:25.457 | pipeline_ops | devops.stackexchange.com | |
170,427 | Ubuntu service monitoring like "monit" - do you use it? | What are your thoughts on using any kind of service monitoring to auto restart services that failed? Is monit a good solution? | Well, I think in general monitoring is an extremely good idea. Auto-restart, however, needs to be implemented carefully. Depending on your application, there are likely services that need to be started up in a certain order. This logic needs to be built into your auto-restart routines so that things come up and get shu... | 1 | 1 | 260 | 2010-08-14T02:37:33.900 | pipeline_ops | serverfault.com | |
75,754 | Apache unacceptably slow | Getting pages on my apache is currently unacceptably slow, even locally. I have no clue what may be going on, but the processors seem pretty inactive, and there are 7GB of free memory. Any ideas? Take a look at this time/curl test: [CODE] | That kinda smells like DNS lookup timeouts. Try turning off HostnameLookups and see whether that improves the situation. | 0 | 3 | 294 | 2009-10-19T01:55:14.300 | infrastructure | serverfault.com | |
802,130 | Issue with tar -N command not filtering dates correctly | I have this tar command I am trying to run - [CODE] Inside of the home directory, I have the following files that should be filtered [CODE] However, when I look at the command output, they are still there - [CODE] Why is it not filtering these files by dates correctly? Thanks. | Reading the gnu documentation: https://www.gnu.org/software/tar/manual/html_node/after.html [...] causes tar to only work on files whose data modification or status change time s are newer [...] If you only want tar to make the date comparison based on modification of the file's data (rather than status changes), then ... | 1 | 1 | 1,003 | 2016-09-09T15:13:06.610 | infrastructure | serverfault.com | |
1,014,802 | Why /tmp is bound in /tmp ? How can I remove this bound | In Scientific Linux 6, a clone of RHEL6, I have the following mtab file: [CODE] the content of fstab is [CODE] and the output of mount command is: [CODE] Why /tmp is bound on /tmp ? (also /home on /home, /var/tmp on /var/tmp) How can I remove this bound and put /tmp as common directory under / ? I need this because I h... | I have run chkconfig sandbox off Then reboot. As suggested by Jose Marques. | 0 | 0 | 360 | 2020-04-29T14:00:01.157 | infrastructure | serverfault.com | |
1,075,830 | How can I configure cron startup on a new image without harming the Apache service? | I'm creating a new image with cron which is based on the [CODE] image. The build of the image goes without a hitch. The container is also created with a status of Up. However, in the browser when I type [CODE] no Apache page is shown. The Apache service is inherited from the [CODE] image. In my Dockerfile the last line... | I solved the problem as follows: I removed the line [CODE] from the Dockerfile. Then I added the line [CODE] . After creating the container with the image run the commands to check Apache2 and Cron: [CODE] [CODE] Link that helped me: http://www.idein.it/joomla/14-docker-php-apache-with-crontab | 0 | 0 | 755 | 2021-08-27T18:17:57.683 | pipeline_ops | serverfault.com | |
64,294 | How to build an overfitted network in order to increase performances | I am learning how to implement CNN, and searching on the internet I have found that a trick to design a good network is to first build it in such a way that it overfits, and then use regularization to elimnate overfitting and have a good performing network. But how do I do this? I don't understand how do I build a netw... | The reason of overfitting is generally because of the high(unnecessary) complexity model. So if you train a too complex(large) model, you will get a high training accuracy and low test set accuracy. Then you can start to fight with overfitting with [CODE] , [CODE] , [CODE] , [CODE] , [CODE] , [CODE] or [CODE] . | 2 | 2 | 195 | 2019-12-05T19:16:41.623 | data_quality | datascience.stackexchange.com | |
53,457 | Error when checking target: expected dense_1 to have 4 dimensions, but got array with shape (3456, 1) | I have trained a model for CNN and I am getting the error on the dense layer. Model code: [CODE] Model Summary: [CODE] But when I am trying to train the model [CODE] I get the following error [CODE] Any help will be greatly appreciated. Thank you | You need to flatten your tensor before feeding it to the [CODE] layer. [CODE] Also, I suppose your target data is categorical ( [CODE] ), hence the [CODE] of [CODE] ? I'm just noting because this can also pose a problem if your target data has [CODE] but your current model expects a target data of [CODE] . | 1 | 2 | 16,790 | 2019-06-08T19:37:34.500 | data_quality | datascience.stackexchange.com | |
790,450 | How to block 111 udp port via iptables? | I've got an issue related to block 111 port only for [CODE] . For [CODE] it was blocked without any problem. This port is used by application [CODE] . I test it via [CODE] . This is my iptables. It contains empty chain [CODE] , because I've removed all rules from it for easy understanding. [CODE] This port will be open... | Depending on how nice you want to be to the client, a possible solution can be: [CODE] or [CODE] | 4 | 9 | 35,407 | 2016-07-18T12:49:13.970 | infrastructure | serverfault.com | |
784,555 | AIDE Self Protection - Best Practices | I set up a pretty simple server and tried to make it secure using some tools and some guidelines which I think are not too bad. I came up using AIDE, which is fast as an implementation of an intrusion detection system. I perform a daily check which mails me the results of file system level mismatches between a frozen s... | Am I wrong? Your analysis is correct, but i think there is nuance here. Is there any sense in performing the check more frequently than once a day? The frequency of the check determines the granularity of the change detection. More frequent == detect changes faster, but what time is of the essence for you? In my own wo... | 0 | 1 | 1,495 | 2016-06-17T08:18:48.263 | infrastructure | serverfault.com | |
124,184 | Error in the code shown below - Why is it | Why does the following code show an error [CODE] | Twenty Fifteen is a valid year. [CODE] But what you tried works only one way, you can not parse text like that (with suffixes) into a date type. Datetime Format Element Suffixes Notes on date format element suffixes: When you add one of these suffixes to a datetime format element, the return value is always in English.... | 2 | 3 | 45 | 2015-12-20T16:10:40.030 | warehouse_errors | dba.stackexchange.com | |
117,923 | Any potential issues/ DoS risks with frequent connections/ queries to a SQL Server db? | A database team suspects there may be an issue with a third-party ETL application opening, and closing, connections to a SQL server database repeatedly. In terms of exact numbers --- it opens about 30 connections, runs 30 queries in parallel, each query lasts 10 seconds, therefore 10 seconds later, the queries end, and... | Depending on how the server handles this, it might cause a potential problem. One technology that SQL Server implements to handle this kind of situation is "Connection pooling". With Connection Pooling, when the process closes its connection, SQL Server does not immediately remove the connection object from its memory.... | 4 | 1 | 328 | 2015-10-13T19:20:04.893 | data_quality | dba.stackexchange.com | |
314,024 | Is 'exercise bugs' an expression? | Is there an expression in programming that something will 'exercise bugs'? I have seen this written before but I don't know what it means. | Exercising bugs would be a pointless activity. What you would do instead is exercise the program to uncover bugs. You can do this a number of different ways: Throw a lot of realistic data at the code, and see which data permutations break. Use a tool like Microsoft Moles to exercise each branch of the code. Hit the cod... | -4 | 3 | 100 | 2016-03-28T00:12:35.190 | api_errors | softwareengineering.stackexchange.com | |
539,922 | Case sensitive hostnames | I have a very quick question regarding case sensitive Greek hostnames. For example, if I wished to register the hostname using the Greek letter omega Ω, like so: ΩΩΩΩ.com, it would in actual fact appear as the lower case version: ωωωω.com. In English of course, this is also true, where E would become e for example. It ... | The Internet standards (Request for Comments) for protocols mandate that component hostname labels may contain only the ASCII letters 'a' through 'z' (in a case-insensitive manner), the digits '0' through '9', and the hyphen ('-'). The original specification of hostnames in RFC 952, mandated that labels could not start... | 8 | 3 | 1,900 | 2013-09-18T14:12:30.297 | infrastructure | serverfault.com | |
396,259 | L2TP Site to Site VPN issues | I have a windows 2008 r2 server that needs to establish a VPN connection to a remote VPN server. We're using the L2TP protocol with a pre-shared key. I initially used the New Demand Dial interface wizard. Then I went into properties on the interface and set the type of VPn to L2TP/IPSec and put the key under the advanc... | You don't have any certificates setup for RRAS. http://jamescook.me/2010/09/rras-2008-and-l2tp-wan-miniport-issues/ | 1 | 1 | 3,165 | 2012-06-06T22:21:24.130 | infrastructure | serverfault.com | |
925,452 | Ansible | Access multi dimensional variable for when conditional in nested loop task | I try to use a conditional when inside a task with a nested loop. Specifically first of all I want to read different states per user, register the variable after that and want to iterate over this variable in another task. Register the variable: - name: "Desktop & Screen Saver - Get values for corner configuration" she... | Is this the expression that you're looking for? [CODE] Loop with json_query to iterate: [CODE] | 2 | 1 | 2,843 | 2018-08-08T12:50:35.073 | pipeline_ops | serverfault.com | |
127,970 | Howto combine UNION with EXISTS? | I have a query that looks like this: [CODE] Which works fine. My trouble start when I try to add an EXIST to it: [CODE] That throws this error: The multi-part identifier "PubKey" could not be bound. Could it be written another way? | The [CODE] clause is specific to each individual [CODE] so you would need to move the one you have to the first [CODE] like this: [CODE] However, if you want to specify the [CODE] clause across the entire result set. This must be done like so: [CODE] | 5 | 5 | 16,293 | 2016-02-01T22:57:00.023 | warehouse_errors | dba.stackexchange.com | |
849,007 | failed to start LSB :Bring Up down Networking | I am new to centos 7 and I am configuring a static IP on centos 7, so I have edited the file [CODE] as following [CODE] but when I issue the command [CODE] I am getting the error [CODE] [CODE] show gives me no output and I have applied the solution that stops networkmanager with the same existing error. I am able to co... | The combination of IP address, netmask and gateway you have configured do not work together. The netmask 255.255.255.0 combined with the IP address 192.168.4.196 means that your gateway must be in the span 192.168.4.1-192.168.4.254. There are three possible solutions: Choose a gateway within that span (i.e. one that st... | -1 | 1 | 12,081 | 2017-05-09T10:07:05.420 | infrastructure | serverfault.com | |
159,806 | Aggresive indexes lead to lock times | Using sp_blitzindex from Brent Ozar, I found this particular problem. The table(s) - (there are many of them, about 80, per business object) - are simple: User id Primary key of business object (if PK is composite, there are several columns) During a particular task, all records of a given user are DELETED and new reco... | Let's start by looking at the results of [CODE] : Lock escalation attempts: 252,312; Actual Escalations: 6 What is lock escalation ? The first sentence from that page explains it pretty well: Lock escalation is the process of converting many fine-grain locks into fewer coarse-grain locks, reducing system overhead while... | 0 | 2 | 1,111 | 2017-01-03T10:23:02.497 | database_errors | dba.stackexchange.com | |
585,746 | RDP works on wired connection, but it gets stuck on "estimating connection quality" over WIFI | I'm trying to connect to a Windows Server 2012 R2 using RDP. It works fine using the ethernet cable, but it gets stuck on "estimating connection quality" if I try to connect using WIFI. The WIFI router gives me access to the exact same network the cable does. The server is hosted on Amazon. I can connect to other inter... | If having Windows detect your connection quality is giving you grief, I would recommend working around the problem by setting it manually. (The Experience tab of the built-in Windows RDP client, [CODE] ). Once you've selected any of the other options, you can manually adjust the settings (by checking or unchecking the ... | 4 | 1 | 18,129 | 2014-03-31T21:28:30.630 | infrastructure | serverfault.com | |
309,061 | Ensuring no EFS files remain on a Windows XP SP3 system | Lets say I have a user in my organization who has forgotten his/her Windows logon password to their office computer. As an IT manager, I can log in via the Administrator and reset that user's password. So far, so good. But if the user has used EFS to encrypt files on the disk, those files would be inaccessible after th... | Yes, alternately, use [CODE] : [CODE] | 1 | 1 | 95 | 2011-09-07T17:33:22.350 | infrastructure | serverfault.com | |
567,124 | Nginx "ssl_stapling" ignored, no OCSP responder URL in the certificate | I'm trying to setup OCSP stapling on Nginx because I ran a test and it suggested the idea and well, you know. https://sslcheck.globalsign.com/en_GB/sslcheck?host=aj2jewellers.co.uk#176.58.103.165 I'm getting the error: [CODE] Here's the relevant bits of my .conf [CODE] | The ssl_trusted_certificate option should point to the root certificate and all intermediate certificates of the CA, not your signed certificate. This is made clear in the NGINX documentation here http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_stapling_verify . For additional configuration examples, see htt... | 6 | 10 | 28,975 | 2014-01-14T11:25:28.380 | infrastructure | serverfault.com | |
6,098 | how can I generate a Bernoulli block mixture model in matlab? | I am trying to write the code of a Bernoulli block mixture model in matlab, but am facing an error every time I run the function. In particular, I'm having a problem with how to relate the distribution parameter $\alpha$ to the latent variables $Z$ and $W$. In other words, \mathbf{Z} follows a multinomial distribution ... | First, $x_{ij}$ is not a bernoulli random variable. In the text, $x_{ij}$ is described as real valued. Also, the dimensions of $z$ and $w$ are incorrect. The text indicates that we're drawing a matrix of data call it $X (n\times d)$ such that $X_{i,j}=x_{ij}$. A particular entry has distribution $x_{ij} \sim f(\alpha_{... | 5 | 1 | 212 | 2015-06-12T13:39:15.880 | data_quality | datascience.stackexchange.com | |
485,754 | How to find all ways in which a Unix user account is locked | I occasionally find myself in a situation where an undermaintained system has an account that's been locked out. The problem is that there are a variety of ways in which an account can be locked out, each with their own method of being unlocked. It's not that the account is being locked improperly, just unexpectedly, b... | You can use [CODE] to gather some information e.g. if an account is locked [CODE] The [CODE] utility will provide information about the various timers on an account e.g. for an unexpired password [CODE] for an expired password [CODE] The [CODE] and [CODE] utilities also list many of the account locks. You can use [CODE... | 14 | 15 | 111,674 | 2013-03-07T20:34:05.773 | data_quality | serverfault.com | |
312,469 | GRANT ADMINISTER Database Bulk Operations - Incorrect syntax near ADMINISTER | I am trying to import a bacpac file to my SQL Server Express 2016. An exception is thrown during the import with [CODE] Returns: Incorrect syntax near 'ADMINISTER'. I am running the import as the [CODE] user. Later when I try to run the SQL line directly, the same error is thrown. What can I do to resolve this? Update:... | The documentation says " [CODE] Applies to: SQL Database." In the context of the docs "SQL Database" is Azure SQL DB. Not the SQL Server running on Windows/Linux. "SQL Database" always means Azure SQL Database. The docs simply use both interchangeably. | 0 | 2 | 810 | 2022-05-23T01:51:02.977 | database_errors | dba.stackexchange.com | |
308,193 | Oracle XE 18c, on every connect attempt, Oracle listener OracleOraDB18Home1TNSListener stops, and I am unable to connect to any connection | For the purpose of learning, I have installed Oracle 18c XE v18.4.0.0 and Oracle SQL Developer v21.4.2 . I have no previous experience with Oracle database. Command LSNRCTL stat seems to show correct results: [CODE] I am trying to connect to XEPDB1 Plugin database by using sqlplus command: sqlplus system/oracle@192.168... | You have hit a bug for sure. [CODE] with a stack trace. It is hard to suggest an easy way forward. I suggest you uninstall the 18c XE and rather go with Oracle VirtualBox and fire up one of Oracle's linux boxes where Oracle Database is present. Another option is to run your Autonomous Oracle Database in Oracle Cloud. I... | 0 | 1 | 676 | 2022-03-02T19:49:15.560 | database_errors | dba.stackexchange.com | |
294,709 | Can I delete manually data files for entire database in MongoDB | I like to optimize my backup strategy of my MongoDB. I have dedicated folders for each database: [CODE] Gives folders like this: [CODE] Folder/database [CODE] contains only temporary data, as the name implies. I like to exclude folder [CODE] from my backup. What happens if this folder is missing from restore, i.e. what... | I deployed a sharded Cluster on my PC and run a test. Stopping all [CODE] and [CODE] services Delete all [CODE] at PRIMARY hosts Delete all [CODE] at ARBITER hosts Delete folder [CODE] at SECONDARY hosts Then I would have the situation like I have after a restore from filesystem restore. Start SECONDARY host in standal... | 1 | 1 | 2,743 | 2021-06-23T13:58:05.457 | database_errors | dba.stackexchange.com | |
442,458 | How do I make conditional queries within DDD logic | I have created a small ERP application and the architecture I chose included the Repository pattern and the anemic Domain model and Business logic layer. I was reading Microsoft's guide about microservices here: https://learn.microsoft.com/en-us/dotnet/architecture/microservices/microservice-ddd-cqrs-patterns/net-core-... | In short: introduce another level of indirection . I would recommend to create a "helper service" (a.k.a service facade) which encapsulates the repo access and "inject" this into the entity's method. In your example above, one may create a service like [CODE] with methods [CODE] , [CODE] , [CODE] and [CODE] . These met... | 1 | 2 | 284 | 2022-11-25T18:25:03.043 | pipeline_ops | softwareengineering.stackexchange.com | |
72,059 | New Zimbra accounts cannot login | I'm using Zimbra Collaboration Suite 5.0.11 and it's been working pretty well until yesterday. I've added a new mail account using the administration console with no errors. But when I try to login with the newly created account, I get the following error (beign ACCOUNTNAME and DOMAIN the new account domain and name): ... | Have you thought to ask this question on Zimbra forums they have very active forums. | 0 | 2 | 3,565 | 2009-10-07T08:29:00.113 | infrastructure | serverfault.com | |
91,695 | error:ORA-01008: not all variables bound | I created a bus table and when I try to insert values in the table like: [CODE] I get an error: ORA-01008 not all variables bound | Use [CODE] to set the values of the variables. [CODE] SQL Fiddle demo | -1 | 1 | 26,106 | 2015-02-11T14:27:12.490 | warehouse_errors | dba.stackexchange.com | |
48,029 | Help with Postgres 9.1 data import (is 4x expected data size, 4x slower than MySQL, and index still needed) | I have 25 billion [CODE] rows that I'm trying to import into Postgres, and after 77% of the data being imported, the Postgres data folder is taking up 840GB, about 4x the storage requirements for that many rows at 12 bytes each. Additionally, importing is taking 4x longer than my same import on MySQL (as described in M... | SubQuestion 1: I don't know of any way to get rid of the 23 byte header. There is also a 24 byte header on the page. http://www.postgresql.org/docs/8.3/static/storage-page-layout.html SubQuestion 2: This guide should help. As suggested, increasing maintenance_work_mem is advised, but also increasing checkpoint_segments... | 0 | 1 | 437 | 2013-08-13T09:28:25.483 | database_errors | dba.stackexchange.com | |
989,447 | GKE cluster behind NAT can't be accessed via nginx ingress controller load balancer | I have the following setup: GKE cluster with private nodes NAT router that provides outbound internet access for the nodes with a static IP nginx ingress controller in default setup (as per docs) the nginx ingress controller creates its own load balancer with its own external IP, but when I curl that IP, I get an empty... | In the provided scenario, with no more information than the design, it'd be very demanding to troubleshoot this issue. There are a few components that may be causing this behavior: firewalls, health checks, nginx server backend configuration... In order to help you further or to receive better assistance, It'd be very ... | 0 | 0 | 926 | 2019-10-25T22:28:30.830 | infrastructure | serverfault.com | |
163,878 | Breaking up a large PHP object used to abstract the database. Best practices? | Two years ago it was thought a single object with functions such as [CODE] would be a good idea. The functions return objects (not arrays), and the front-end code never worries about the database. This was great, until we started growing the database. There's now 30+ tables, and around 150 functions in the database obj... | First off, forget about tables. Tables are storage. Think about your classes instead. Often classes can be saved in a single table, but not always. So dont think of them as interchangable. They are very different things. What you want to do is move the database queries into your classes. Keep the database abstraction l... | 0 | 1 | 814 | 2012-09-06T09:14:32.340 | api_errors | softwareengineering.stackexchange.com | |
929,847 | Exchange 2013 - Edit Mailbox in ECP, Page Blank | We have Exchange 2013 on Server 2012, and when logged into the ECP if I double click on a user mailbox the EditMailbox.aspx page pops up, but all the fields are blank and the links on the left hand side don't work - see attached image. This previously worked and the only things which I know to have changed are Windows ... | Do All mailboxes in EAC have this issue? If run "get-mailbox" in EMS, do all properties show correctly? How many Exchange servers do you have? If many servers, you can test in different servers and check if there is the same issue. | 0 | 0 | 1,466 | 2018-09-07T08:29:14.007 | infrastructure | serverfault.com | |
481,448 | Cannot telnet to port 25 | When I try to telnet to port 25 using this command: [CODE] I get this message [CODE] And nothing more happens. I disabled csf but the problem still exsists. I also asked my VPS co. whether they have blocked port 25 and they said they have not blocked any port. In postfix logs: [CODE] Is it possible that google has bloc... | There are two obvious possibilities here. Your hosting provider or their upstream networks or your government have blocked outbound traffic to port 25. Google and Yahoo have blocked incoming connections from your network. I see that you are located in Iran. Due to US law, companies in the US are prohibited from doing b... | 2 | 2 | 5,772 | 2013-02-22T10:16:34.283 | infrastructure | serverfault.com | |
256,994 | Is there a way to sort code properly into regions dividing methods and events? | I'm using ReSharper and CodeMaid, both have their own "organize" code option but the problem is that i have no idea how to tell them what is an event and what is a method/function that i coded. If i reorganize code (i want regions) it groups every control event and method together. Is there a way to tell them what is a... | Regions shouldn't be used . Never. If you want to organize methods, properties, fields, events, etc., you may be interested in following StyleCop rules and in making StyleCop checking mandatory during every commit. Also, if you're currently writing code in a basic text editor, you may be interested in moving to Visual ... | 3 | 4 | 7,321 | 2014-09-23T00:06:52.240 | api_errors | softwareengineering.stackexchange.com | |
1,073,366 | How can I delete manually calicoctl and iptables created by calico from my k3s setup | I have a K3s setup with calico pods [ [CODE] & [CODE] ] running. On uninstalling K3s, calico pods get deleted but I see that [CODE] and [CODE] commands still running and shows data. I want to delete calico (including calicoctl and Iptables created by calico) completely. Which commands will help me to do so ? K3s uninst... | Deleting calico-Iptables: Use calico-policy and add below lines at the end of script: [CODE] This will delete all calico iptables when you check with [CODE] Note: Run this script only after uninstalling K3S. Deleting calicoctl: Simply run [CODE] command, it will find and delete the calicoctl. | 2 | 3 | 7,041 | 2021-08-03T04:42:46.970 | infrastructure | serverfault.com | |
208,887 | how to get ALL the objects in a database that are NOT FOR REPLICATION? | [CODE] is a property which can be set for different objects like [CODE] , [CODE] , [CODE] , [CODE] etc while using SQL Server Replication. What are ALL object types that can be NOT FOR REPLICATION? How can I find them? For those object types I have mentioned above I am putting a script together: identity columns [CODE]... | Row Level Security Policies have a NOT FOR REPLICATION property too, allowing the replication agents to bypass the policy. But I think that's it, at least those are the only objects with is_not_for_replciation column in the catalog. [CODE] | 0 | 2 | 1,432 | 2018-06-06T11:05:21.730 | data_quality | dba.stackexchange.com | |
172,174 | SQL Server Import Wizard Excel into SQL Server 2016 Error 0xc020901c | I am trying to import an Excel file with 3914 rows of data into an existing table on SQL Server 2016 Express through the SQL Server Management Studio. I imported a similar file last month, but this is a monthly update file, so I deleted everything from the table before I imported the new file. However, now, when I go t... | The important portion of that is the following: There was an error with Destination - IACList.Inputs[Destination >Input]. Columns[Approval Number] on Destination - IACList.Inputs[Destination >Input]. The column status returned was: " The value violated the integrity constraints for the column ." So check the data type ... | 1 | 0 | 5,779 | 2017-04-27T14:56:02.487 | data_quality | dba.stackexchange.com | |
291,386 | Remote Desktop SQL Server Management Studio Dialog boxes Font size too small | When I connect from my local machine to a remote server through Remote Desktop Connection. And then try to use SQL Server Management Studio, the Dialog boxes in the application for example Connection dialog screen shown on launch, Server Properties etc are very small, so small that the text on these dialog boxes is not... | Since you are connecting from a 4K monitor, you you might be running into a DPI scaling issue escpecially if you are using an older version of Management Studio. Starting with Management Studio v18 there was a lot of added support for High DPI. Make sure you are running the latest version (v18.10). https://learn.micros... | 1 | 1 | 2,229 | 2021-05-11T18:30:27.890 | database_errors | dba.stackexchange.com | |
833,724 | Preloading docker images with an ISO for redistribution | We are developing an app that is to be deployed on site to various installations (not cloud). Our OEM partner is asking us to provide them with an ISO to be able to quickly provision new servers. Our app is built around containers and we have a private internet-facing registry setup to be able to pull the latest passin... | Docker save/load is exactly what I would do here. Pre-populating /var/lib/docker directly, whether by a package installation, or copying it from CD/DVD, seems extremely hacky. And it's also dependent on the storage engine you're using. Docker's own save/load is how Docker likes to get images into and out of the local i... | 12 | 2 | 2,029 | 2017-02-20T15:27:28.440 | database_errors | serverfault.com | |
93,246 | apache is up but does not read requests | This usually happens a few minutes after restarting [CODE] : [CODE] daemons are up, but are not reading the requests from the sockets. The web clients just wait forever on the connection. When I run [CODE] , the Recv-Qs are showing a positive byte count which does not change. So basically the connection between the cli... | Run "netstat -l" to verify apache is on actively listening on port 80, then verify there isn't a firewall in the network path interfering with traffic, either on the localhost ("iptables -L") or on the network. It also wouldn't be a bad idea to check the selinux logs if you have that enabled. | 0 | 1 | 134 | 2009-12-11T01:21:49.693 | infrastructure | serverfault.com | |
127,221 | Deleting large no of files on linux eats up CPU | I generate more than 50GB of cache files on my RHEL server (and typical file size is 200kb so no of files is huge). When I try to delete these files it takes 8-10 hours. However, the bigger issue is that the system load goes to critical for these 8-10 hours. Is there anyway where I can keep the system load under contro... | Here are some benchmarks for various operations and filesystems for your reference. (On a busy system of course you would have different results, but hopefully this will give you an idea of what to expect). If I would be in your chair I would try to get a baseline benchmark of the scenario: establish how long the opera... | 6 | 9 | 5,972 | 2010-03-29T09:19:40.813 | infrastructure | serverfault.com | |
236,616 | Wyse Simple Imager. Unable to Create Product Directory | I am trying to submit a post on www.technicalhelp.de , but I receive an error: Invalid Session. Please resubmit the form. This happens if I delete temporary internet files and log out and back in, and if I use a different browser, and if I use a proxy browser. Perhaps someone on this forum can help I am trying to push ... | A couple of things to try: 1) If the device has U3 or similar, use the USB drive manufacturer's utilities to remove it or get a different device 2) Try copying the image to your local machine rather than pulling it over the network 3) Use the USB Firmware Tool available on wyse.com 4) USB Firmware Tool and WSI will not... | 0 | 0 | 2,783 | 2011-02-17T07:30:46.643 | infrastructure | serverfault.com | |
533,554 | High Availability on Windows Azure Websites | One of my main apps is hosted on Windows Azure's Websites platform. Given Friday's downtime, I realized that I need something that allows my app to stay online if Azure has an outage again. My current setup is 1 WAWS instance (w/ autoscaling set to 1..3 instances @ 70% CPU) and SQL Azure as a backend. I really enjoy ha... | First: Remember that all cloud providers have outages. Windows Azure did not "go to hell" as you put it. A subset of services, in a specific region, had an outage until it was mitigated. Changing cloud providers will not protect you from outages. Just bing it, and you'll find plenty of outage details across multiple cl... | 0 | 0 | 920 | 2013-08-25T07:57:23.637 | database_errors | serverfault.com | |
14,291 | Learning character sequences and predicting sequences | I'm novice to deep learning and sorry if these questions may look very basic. ******************* First Question ******************* I need to predict the next k-characters given some initial text input, where the algorithm is learnt on a piece of text (character sequence). I've done some work on predicting only 1-char... | I think you might want to check Andrej Karpathy's work around charRNNs some pretty cool work is being done. The github link has all the relevant code too. If you are looking for a more applied way - you can check my blog on deep learning gender from name which effectively uses character level LSTM RNNs to learn pattern... | 0 | 1 | 1,138 | 2016-09-30T09:44:38.730 | data_quality | datascience.stackexchange.com | |
639,327 | RabbitMQ behind Apache mod_proxy not resolving deep link | I have RabbitMQ running behind Apache mod_proxy so I can access the web management interface over port 80: [CODE] This seems to work however, when I e.g. go to the Queues page and I click on one of the listed queues I get a Not Found page and a URL that looks something like this: [CODE] The same thing goes for Connecti... | First you need to stop apache2.4 from decoding slashes in your path (%2F). To do so set [CODE] And you need to prevent the escaping of 'dangerous' characters like '#'. With mod_rewrite that would be the [NE] flag, with mod_proxy set [CODE] This results in: [CODE] | 5 | 6 | 4,548 | 2014-10-24T08:17:43.713 | infrastructure | serverfault.com | |
71,975 | Will Rebuild and Reorganize improve Database Migration Script performance execution? | I would like to know if a Database Schema Migration Script (generated by Visual Studio 2008 or greater) will run faster if my target database got indexes rebuilt and/or reorganized . Note: For all tables, when index fragmentation level is between 5% and 30% I reorganize the index. When index index fragmentation level i... | If you are just migrating the Schema itself, and not any of the data, Index Fragmentation of your user database tables should be irrelevant. The instructions in the migration script will come from system database tables holding the metadata for your user database/schema. | 1 | 1 | 127 | 2014-07-21T13:17:11.477 | data_quality | dba.stackexchange.com | |
141,192 | MySQL CREATE INDEX slowing down | My analytics table has 190M rows, about 150GB ins size. Storage engine is MyISAM with [CODE] Machine has 32GB memory. While creating 10 simple indexes (no covering, no prefix, just column names using BTREE) I noticed: first index - 40 minutes second index - 50 minutes ... fifth index - 2 hours eleventh index - 3 1/2 ho... | You must be doing something odd with your DDL or you have a very, very old version of MySQL. MyISAM Index creation can be very lethargic. I wrote about this almost ten years ago. [CODE] : Why does mysql drop index very very slow in a large table? (from the MySQL General Discussion Forum) [CODE] : Does MySQL still handl... | 1 | 1 | 675 | 2016-06-14T14:27:46.720 | database_errors | dba.stackexchange.com | |
770,169 | Can I hot-swap a 2-PSU server from 120 to 240 volts? | I'm migrating a server with 2 PSUs from 120 volts to 240 volts, and I'd rather not take it offline. It seems like I should be able to just move the PSUs to the new voltage one at a time, since they are not connected to each other. Would it cause problems to run one PSU on 120 volts and one PSU on 240 volts for the time... | You can, but you probably shouldn't. Can you try it with a less important server? Also, the make/model of the system may make a difference. Edit: I'm shifting a rack from 110V to 208V and decided to give this a try. It seems to work on my HP ProLiant servers without issue. | 10 | 5 | 1,221 | 2016-04-13T22:40:20.103 | infrastructure | serverfault.com | |
50,479 | How to handle AB testing approach with similar page logic but different locators | I have a test suite that currently runs across different development environments. Recently a complete rewrite of the application was done & deployed to a new environment. The application looks & acts almost identically. Page logic is more or less the same. The big difference is the HTML rewrite has rendered my locator... | The create separate page objects for the new environment can work well if you use polymorphism appropriately. I would suggest understanding Dave Farley's DSL + Protocol Driver architecture (short video here and long webinar here ). Basically your tests shouldn't know about the details of your page objects, just their b... | 2 | 2 | 67 | 2022-08-26T04:56:34.197 | data_quality | sqa.stackexchange.com | |
114,128 | How do you handle ever-growing piles of issues to be resolved "somewhen"? | We're using JIRA to keep track of issues in our software projects. One effect we noticed is that we often create a new issue but we don't knw yet when/if the problem is going to be fixed at all. So we invented a fake 'Distant Future' milestone which such issues get assigned to. As it happens, the pile of issues assigne... | These are good first contact bugs to fix for new developers that have just joined your company. Or for junior developers to expends their knowledge of the system. If not, you can mark them "wont fix" if they are not serious enough to justify the time it would take to fix. | 15 | 11 | 1,119 | 2011-10-13T09:12:30.630 | data_quality | softwareengineering.stackexchange.com | |
679,035 | How to setup user accounts on a secondary server in High Availability? | Working with two Microsoft SQL 2012 servers in Always On High Availability configuration running on Windows Server 2012 R2. Setup works well and failover is almost flawless. However, the software that connects to database (or high availability cluster in this case), is using sql user account that must be mapped to data... | I have ignored, or rather forgot, the fact that sql user accounts on servers had different sid which in fact was the source of the issue. | 2 | 0 | 394 | 2015-03-29T00:58:16.763 | database_errors | serverfault.com | |
172,925 | What problems do configuration management tools solve? | My company is creating a service in an Amazon Virtual Private Cloud. Without getting too much into the details, there will be about 5 different types of servers, and each type will need to be replicated based on demand. A bit of reading gives me the impression that we're going to want to use a config management tool li... | As a start point look at this info - Configuration management . The concept itself is very broad, that you may need to narrow it down on certain areas. CM, when applied over the life cycle of a system, provides visibility and control of its performance, functional and physical attributes. CM verifies that a system perf... | 3 | 3 | 1,285 | 2012-10-30T18:58:35.653 | pipeline_ops | softwareengineering.stackexchange.com | |
437,636 | SSH how to auto flush before a \n | I am using this kind of commands : [CODE] But if during the installation script, a user prompt is needed, I cannot see what is the question asked since, the CLI is not flush into the SSH before a [CODE] . How can I ask SSH to auto flush the prompt before the [CODE] so I can see which answer I should give? Edit: To Help... | According to http://www.derkeiler.com/Newsgroups/comp.security.ssh/2005-03/0056.html we need to use the -t option. [CODE] | 3 | 6 | 2,489 | 2012-10-12T07:56:26.930 | infrastructure | serverfault.com | |
261,376 | MySQL using up all RAM and SWAP in group replication settings | I am using MySQL 8.0.18 in a group replication (multi-master) infrastructure. There are currently 4 master servers connected to each other and everything seems to be working fine but over the course of around 2 weeks all mysqld process on all servers uses up all the swap. ram usage stays at 800Mb as I suspect innodb_lo... | [CODE] is probably using more than the available memory (after allowing for the OS, MySQL code, etc, etc). Use the default value. | 0 | 0 | 124 | 2020-03-06T14:26:32.497 | database_errors | dba.stackexchange.com | |
30,563 | How to avoid using the IN clause in sql query used in a stored procedure | Is there a better way to write the SQL other than using the IN clause in the below given SP. When i am using this IN clause, i suffer a performance dip due to large number or records involved in the User and Member tables. [CODE] Kindly suggest the alternative as i don't have a full knowledge in writing SP | Where exists is gnerally faster than IN [CODE] | 8 | 5 | 29,853 | 2012-12-17T10:05:31.840 | database_errors | dba.stackexchange.com | |
645,201 | What does the status column mean when I run yum repolist | I'm trying to update my PHP version, using the webtatic repo . I've successfully done it (using the exact steps in the link) above on a test VM server running on my machine at home, but when I try and do the same on my live server, it get an error saying [CODE] . Running [CODE] on both servers, my test server, under th... | Status column shows the number of packages available in repository. In your case (43+242) means [CODE] It seems you have excluded some packages in webstatic configuration file. Check for the below line in /etc/yum.repos.d/webstatic.repo [CODE] Comment or remove all excluded packages from webstatic.repo and run repolist... | 3 | 3 | 8,018 | 2014-11-18T12:39:43.423 | infrastructure | serverfault.com | |
105,353 | Using HBase or Cassandra for a token server | I've been trying to figure out how to use HBase/Cassandra for a token system we're re-implementing. I can probably squeeze quite a lot more from MySQL, but it just seems it has come to clinging on to the wrong tool for the task just because we know it well. Eventually will hit a wall (like happened to us in other areas... | Part of the issue of NoSQL databases is that they are newish products with very variable feature sets and useage styles. As a result there is no one right way to use a NoSQL database. I have some familularity with Riak, and am of the view that it would support the feature set you are talking about, including expiring y... | 4 | 1 | 435 | 2011-08-30T22:27:07.370 | hadoop_errors | softwareengineering.stackexchange.com | |
43,271 | Is there any way to connect to one server and utilize a linked server using Windows authentication and NTLM? | I currently have SQL Server 2005 (Server A) that has a SSAS 2005 linked server (Server B). The powers that be do not want to enable Kerberos authentication, so I'm stuck with NTLM. The problem is that when developers connect from their local workstation to Server A and try to run queries against the linked server, Serv... | Without setting up Kerberos then no. Why do they not want to setup Kerberos? It's already 99% setup. All you need to do is create the SPNs and restart the SQL Server instances. Kerberos is the default AD authentication system. You are falling back to the less secure authentication systems. Sounds like the powers that b... | 0 | 0 | 411 | 2013-05-28T20:02:31.750 | api_errors | dba.stackexchange.com | |
283,482 | Querying AD from SQL Server | I've read tons of questions and answers about my error but none of them helped me ( from PINAL website, microsoft links and everything ). questions from 9 years ago to today. I created a Linked server with proper user/pass to read info from our AD. but it doesn't matter what user I use ( we tried everything, even with ... | You might be better off and find it easier to query Active Directory with a CLR stored procedure or CLR function . See this walkthrough on how to do so, as this is how I've done it in the past. Also someone else made one already you can look into (but be careful installing CLR assemblies from outside sources). | 1 | 0 | 989 | 2021-01-18T12:16:10.977 | database_errors | dba.stackexchange.com | |
90,353 | On not public server: Host name example.com could not be resolved: Name or service not known | This is not a duplicate (please read carefully) Digging in mysql logs of a production server I found a few entries with the error above, all pointing to the same host name. Each entry appears ~30 seconds right after mysql starts. There is also no record of the hostname in [CODE] table I would not be surprised if mysql ... | When [CODE] isn't in specified, the IP address of incoming connections is resolved into a name via a DNS query... However, there isn't just one DNS query, because the existence of a reverse DNS entry (e.g. a [CODE] record 203.0.113.113 → foo.example.com) is not sufficient for hostname-based authentication -- anybody co... | 0 | 2 | 4,110 | 2015-01-28T00:42:54.173 | data_quality | dba.stackexchange.com | |
240,391 | In postgres, is using a lock better than transaction when reading data? | I have a race condition in the code for my database, and I'm wondering how I can prevent this using either locks or transactions? (And which is best) I'm using an ORM to update values, however the ORM doesn't support either locks or transactions (though it does support native queries so I'll have to do some of that). B... | I think that you can prevent this problem by putting [CODE] at the end of your [CODE] statements. I am not sure because your description is somewhat confusing. To avoid deadlocks, add an [CODE] to the queries as well. | -1 | 0 | 371 | 2019-06-12T14:15:53.487 | warehouse_errors | dba.stackexchange.com | |
100,583 | How to get column names after One Hot Encoding when using Pipelines? | I am using [CODE] and [CODE] to preprocess the data. Basically I am using them to impute null values, scale the numerical data and finally perform [CODE] . When I fit the [CODE] object to my train and test data the resulting output I get is an Array where the column names are 1, 2, 3, 4,5 and so on. Below is my code:- ... | Try this function to get the feature names. [CODE] | 1 | 0 | 2,629 | 2021-08-28T12:23:31.080 | data_quality | datascience.stackexchange.com | |
203,118 | What are some ramifications of open source software turning into closed source software? | If a company takes a permissively licensed open source application and then develops a closed source application from that by reworking extensive parts of the application, adding new features and applying bug fixes... Ignoring any license requirements... How does the transition happen and what can be done to prevent it... | It's important to note that this scenario can happen in both legal and illegal forms. This can occur legally if the company owns or has access to the copyright associated with the code. For example, smaller, independent development teams may wish to sell or license their copyright to a larger firm. Likewise, if the bul... | 16 | 14 | 1,069 | 2013-06-29T01:27:02.740 | api_errors | softwareengineering.stackexchange.com | |
104,147 | Unable to delete a SQL Server 2012 publication | I've set up a transactional replication for two databases, let's call them A & B. Replication for the database A worked just fine and I was able to delete it afterwards without any issues. Replication for the database B would error out and after checking the logs I found (Could not obtain information about Windows NT g... | Looks like you have an object owned by a user that the service account can't validate. you can figure out what object it is, and change the owner of the object to sa. If it's the database, run this: [CODE] | 1 | 1 | 547 | 2015-06-15T19:26:08.243 | database_errors | dba.stackexchange.com | |
727,590 | Scheduled Task for Powershell Script | So I'm trying to run a powershell script on a schedule. Every morning at 6am, repeat every hour of the day. Here is the script itself: [CODE] Now, the script works flawlessly when I execute it myself. But it seems as if the script won't properly run when its being scheduled to execute. My thoughts is that the execution... | Where is the sheduled task? On GPO or on a local machine? Are the script and the machine where it should run in the same network? Try to schedule it like this (if you haven't done that yet): [CODE] Edit: Also I'm not quite sure if you have to have the AD-PS-Module installed on the Workstation where you want to run the ... | 2 | 4 | 1,048 | 2015-10-08T12:16:26.817 | infrastructure | serverfault.com | |
87,251 | Do zero weights receive zero gradient in ReLU neural networks? | Suppose I have a deep neural network using the ReLU activation function, that is $\sigma(x) = max(x, 0)$ . Suppose some weight $w_i$ becomes exactly $0$ at some point. Am I getting something wrong here, or is it the case that the gradient w.r.t. $w_i$ will be zero at all times and hence $w_i$ won't get any further upda... | The derivative (of a loss function) with respect to $w_i$ can be any value, independent of the value of $w_i$ . (E.g. $f(x)=x$ has derivative 1 everywhere, even at $x=0$ .) | 1 | 1 | 155 | 2020-12-28T13:56:52.153 | data_quality | datascience.stackexchange.com | |
147,236 | Standard Edition of SQL Server and cores | Looking for confirmation that we are overpaying for our VM :) We have a SQL Server 2012 Standard Edition on a 7 socket (2 cores/socket) VM. From error log: [CODE] As I understand it, Standard Edition supports the lesser of of 4 sockets or 24 cores, thus I conclude we are paying extra for 3 sockets/6 cores that are not ... | I am thinking we have two choices: Update VM and remove the 3 unused sockets, so we have 4 sockets/8 cores. This is probably a better option. As Kin suggested in the comment on your question, NUMA imbalance would be a factor by trying to balance CPU affinity across physical cores. Update VM and remove the 3 unused sock... | 0 | 1 | 332 | 2016-08-18T18:41:01.657 | database_errors | dba.stackexchange.com | |
35,447 | Why is one Function call throwing a null pointer exception while the other not? | I have two function calls as shown below in the [CODE] in the test class, one simply clicks on a webElement and other one performs an action to activate the dropdown (By simply hovering over using [CODE] ) and then clicking on one of the options in that drop down. My Program uses a POM with Page elements and the functi... | In your [CODE] class in the method [CODE] you're trying to call [CODE] but you haven't instantiate action by the moment (so the reference is pointing to [CODE] ). That is why you get [CODE] . Before you call [CODE] you should instantiate your action like: [CODE] | 0 | 1 | 193 | 2018-09-02T18:04:28.427 | data_quality | sqa.stackexchange.com | |
274,201 | File permission security for webapps | I have a typically configured LAMP server with various web apps running on it. A few of the web apps require user supplied image upload functionality (as well as a couple WP blogs that need to upload images). I have tried to tighten my permission security, and I am finding that 767 is the best I can have on my /uploads... | If you are allowing uploads into a directory wherein files can be executed, you're asking for trouble. 666 would be far more appropriate. Root doesn't need to be executing things in an upload directory. No one needs to be executing anything in that directory. For my money, I'd do 262. You literally cannot have too much... | 0 | 0 | 98 | 2011-05-26T19:37:02.653 | infrastructure | serverfault.com | |
103,410 | Mixing scrips and static content with location tags in apache | I am trying to configure Apache to send most URI's to my mod_perl application with the exception of a few files, which I want to serve using the default handler. (send a static file) I want all http://myserver.com/xxxxx to go to the mod_perl with /, /index.html, robots.txt and a few subfolders to be served statically. ... | This is one of my long-standing annoyances with mod_perl, and ultimately why I'm glad Ruby on Rails came about. Basically, you cannot share where your Perl scripts live and where the static content lives. They must be in different directories. I often cheated and used a different hostname for the static and dynamic con... | 1 | 1 | 210 | 2010-01-16T18:58:24.320 | infrastructure | serverfault.com | |
901,495 | Cron job running a Django Python command through a virtual environment not working | I have a crontab file supposedly executing a Django command after loading the project virtual environment: [CODE] ...but it does absolutely nothing. The cron log outputs no particular problem: [CODE] Needless to say, the command itself works perfectly when copy-pasted in the shell. I know it is related to the environme... | There are a couple of ways to solve this: First, it doesn't work because [CODE] is the shell cron uses to run commands, but [CODE] doesn't support [CODE] . So the quick fix is to set [CODE] in the crontab. Or... Second, it's not necessary to [CODE] anyway. You can just call the virtualenv python directly. [CODE] These ... | 7 | 8 | 4,448 | 2018-03-13T19:27:30.717 | infrastructure | serverfault.com | |
629,853 | NAGIOS host availability test for host that can't be PINGed, won't talk to me, but can be traceroute'd | Part of my network estate has a fairly important dependency on a host whose availability is difficult to check. I have a number of hosts behind it, and my NAGIOS VPS provider occasionally has routing problems that cut off the provider where all these hosts are located. When it's unavailable I'd much prefer the hosts be... | I finally and belatedly realised that if I can traceroute through a host, I should also be able to traceroute to that host, and on testing, verified that this is indeed the case. All the traceroute-related plugins I could find on places like NAGIOS exchange are more sophisticated than this; they want to verify things l... | 0 | 0 | 1,083 | 2014-09-19T14:16:17.380 | pipeline_ops | serverfault.com | |
727,099 | POSTFIX: Sender address rejected: Domain not found (in reply to MAIL FROM command) | My mail server not recognize $mydestination, why? [CODE] But few address are sending and receiving [CODE] Configuration postfix/main.cf [CODE] | The error message you got back from the remote mail server was: host smtp.terra.com.br[208.84.244.140] said: 450 4.1.8 : Sender address rejected: Domain not found (in reply to MAIL FROM command) This means that the FROM address was rejected by them because a DNS lookup on that domain failed. The domain in question is [... | 2 | 4 | 40,945 | 2015-10-06T15:30:25.360 | infrastructure | serverfault.com |
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