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560,113 | nagios Not Found error | in log files and when apachectl restart show : [CODE] httpd.conf : [CODE] i can not open nagios monitoring with url : serverip/nagios 404 not found UPDATE: i create crm folder and document root error solved but whean i brows ip/nagios display: Not Found | You're posting the only main config file for apache. But you are obviously including a bunch of extra config files from (most likely) /etc/httpd/extra/* or /etc/httpd/conf.d/* I cant find any references towards a config regarding a nagios directory you want to serve. Plus the warning states you are trying to configure ... | -1 | 1 | 1,550 | 2013-12-09T12:14:10.860 | pipeline_ops | serverfault.com | |
99,804 | Measuring coherence score for Top2Vec models | I am working on creating a number of Top2Vec models on Reddit threads. I am basically changing the HDBScan cluster sizes to get different clusters of the Doc2Vec embeddings representing a different # of topics. I am trying to compare different models using their coherence score. I have tried using Gensim's coherence sc... | It is possible to compute coherence scores, but you will really need to implement it from scratch yourself from the definitions of coherence I am afraid. Top2Vec doesn't have topic-word distributions. Instead you will be looking at ranking of topic words in terms of their distance from the topic vector in the joint top... | 0 | 0 | 977 | 2021-08-06T23:30:16.010 | data_quality | datascience.stackexchange.com | |
1,067,616 | (Win Server 2019) Slow Read/Write network shared files using SMB protocol | I have a running Windows Server 2019 used as a File Server. He is having a problem: When reading/writing files via network share (SMB Protocol) the request takes a long time to complete... This is happening on Office 97-2003 files, PDFs, Solid Works archives, and some other extensions. Things i tested: HARDWARE - HD, N... | I don't have a definitive answer, and the problem appears to be rather unpredictable, but after some research a while back I found this solution and it does appear to work. On the client computer perform the following - AT YOUR OWN RISK : In an elevated Powershell prompt run the following command: [CODE] Add the regist... | 0 | 0 | 903 | 2021-06-23T20:29:10.440 | hadoop_errors | serverfault.com | |
955,238 | Varnish default.vcl to cover both Drupal and a simple regular website | I have a simple PHP index file website that changes color if refreshed on port 8080, but correctly shows the cached version of the page with the same color thanks to the following default.vcl: [CODE] However, I need to host a Drupal website on the same server, so I replaced the default.vcl file with the following conte... | Trying different combinations I've found that just incorporating [CODE] into [CODE] section of the second (Drupal) configuration file like so: [CODE] works ok and gives the desired effect: Drupal pages are cached correctly, but also the colors of the simple website are cached intact. | 0 | 0 | 400 | 2019-02-22T08:47:14.543 | infrastructure | serverfault.com | |
861,212 | Can I create CNAME for www.example.com in zone file for example.org? | I am using [CODE] in this question only as an example. In my real zone file, I have a real domain instead of [CODE] . This is how my zone file looks right now. [CODE] Do you see anything incorrect in this zone file? I ask this because nslookup of [CODE] and [CODE] succeeds but nslookup of [CODE] and [CODE] fails. What ... | That is not possible. In the zone [CODE] , you can only define records for that domain. You would have to define the record [CODE] in the zone file for [CODE] . | 0 | 4 | 673 | 2017-07-10T06:29:15.610 | infrastructure | serverfault.com | |
125,673 | Android, OpenGL and extending GLSurfaceView? | This question is part-technical, part-meta, part-subjective and very specific: I'm an indie game dev working on android, and for the past 6 months I've struggled and finally succeeded in making my own 3D game app for android. So I thought I'd hop on SO and help out others struggling with android and openGL-ES However, ... | I have a very minimal extension for my [CODE] , and most of the wisdom belongs to my implementation of [CODE] . I had the following three reasons to use a wrapper for [CODE] : The base [CODE] provides no way to get the [CODE] instance back. I have multiple surfaces, and when I receive a UI event for one of them, I want... | 12 | 2 | 5,172 | 2011-12-16T23:36:40.313 | api_errors | softwareengineering.stackexchange.com | |
282,742 | Will a gigabit JetDirect card make a difference? | We have a HP Color LaserJet 4650 running a JetDirect model J3113A JD33, ROM G.07.19, Revision G.08.49, connected at 100Mbps. The memory has been maxed out at 544MB However, this particular printer seems to have more than it's fair share of slowdowns. No more errors than any other printer in the office, just sometimes i... | I ended up asking our contracted printer support person this question when he was next in the office. He informed me that it is unlikely that upgrading the network speed of the jetdirect will significantly improve the speed of the printer. Upgrading the JetDirect to a newer version will make a slight improvement whethe... | 1 | 0 | 156 | 2011-06-21T19:24:35.713 | infrastructure | serverfault.com | |
563,334 | iSCSI TGTD over InfiniBand Performance | I have just configured a server-to-server 4x SDR InfiniBand link to increase bandwidth for the backend storage of my virtual machines, specifically a database server. I am using iSCSI with TGTD on CentOS 6 and I am able to achieve about 6.45Gbps using IPoIB when testing with iperf. I have managed to tune the iSCSI init... | The results you got are reasonably expectable with current setup. You can get additional perfomance gain with [CODE] transport mode. Configuration tips from README.iser Target: [CODE] Initiator: [CODE] Related usefull SF question: Set up simple Infiniband Block Storage (SRP or iSER) . | 3 | 2 | 1,586 | 2013-12-24T10:56:38.203 | airflow_errors | serverfault.com | |
378,871 | Home directory owner is root instead of user | I am adding users using the command useradd in opensuse 12.1 and creating a home directory on NFS. The problem here is the home directory's owner is root instead of user. [CODE] I tried adding users using the GUI but still the owner is root. using chown for home directory also gave the same error. Could anyone please h... | It seems to me that a few things are the possible culprit. It appears that root on the client does not match root on the NFS server and is potentially disallowed from altering ownership of files either from a UID perspective or who owns /export on the NFS server. The issue here has nothing to do with the [CODE] command... | 2 | 1 | 3,958 | 2012-04-12T14:11:49.667 | infrastructure | serverfault.com | |
23,740 | Android ADB error for Appium | The Android Debug Bridge (ADB) error below is given when running application on Eclipse. How can I fix this? [CODE] | Your environment variable is configured wrongly. Set the [CODE] environment variable to [CODE] instead of [CODE] | 0 | 2 | 632 | 2016-11-18T08:33:46.063 | data_quality | sqa.stackexchange.com | |
313,929 | POSTGRESQL table replication between 2 servers | I want to to replicate A TABLE from one server A to another B so that A and B always in-sync. This table on server A has like 4 - 5 million rows, whereas the table B is empty. What I want to do is doing this by pushing data from A to B. I will be using TRIGGER on Server A via either FDW or DBLINK. If there is CRUD oper... | This one should work just fine : Quick setup and the examples for create publication and create subscription . But keep in mind : that the replication slot must be increased if it is max-out. Use [CODE] don't forget to restart the server Thanks to @a_horse_with_no_name | 0 | 0 | 560 | 2022-06-30T07:23:09.777 | database_errors | dba.stackexchange.com | |
347,719 | Java Default Method Usage | For decades it's been the case that interfaces were only only (only) for specifying method signatures. We were told that this was the "right way to do things™". Then Java 8 came out and said: Well, er, uh, now you can define default methods. Gotta run, bye. I'm curious as to how this is being digested by both experienc... | A great use-case are what I call "lever" interfaces: interfaces that only have a small number of abstract methods (ideally 1), but provide a lot of "leverage" in that they provide you with a lot of functionality: you only need to implement 1 method in your class but get a lot other methods "for free". Think of a collec... | 13 | 12 | 1,354 | 2017-04-24T17:27:43.693 | api_errors | softwareengineering.stackexchange.com | |
332,077 | Using Static vs Passing Parameters | I'm implementing a state-pattern design in Java to calculate the current position of an object following a trapezoidal trajectory. The pattern consists of a Context, State and states classes. Currently, the variables (accel, max_vel and target) are passed as parameters to each state object upon instantiation - in effec... | You should keep them as parameters. I can't see any benefit to making them static, performance or otherwise. For example, parameters are usually passed in cpu registers, whereas statics live in memory. On the downside, using statics will make your code more fragile to future changes, including, creating a second such o... | 0 | 4 | 2,955 | 2016-09-26T15:03:42.370 | api_errors | softwareengineering.stackexchange.com | |
198,988 | Redirect DNS entry to local IIS instance | Can I redirect a DNS entry to a local IIS instance? I am on a Windows 7 dev box. I have a domain for hosting static content (images, custom js, css, etc) on a cloud environment. I'd like to avoid hitting that server during development of the site. I can see two ways to do this: Create a virtual machine for the site in ... | Windows 7 supports hosts analog to Linux. Just put the Servername you don't want to be hit in [CODE] Edit This requires the static content to be mirrored on a local instance. | 0 | 1 | 398 | 2010-11-06T21:59:31.123 | infrastructure | serverfault.com | |
314,137 | Syntax error in a simple SQL query | I am using pgAdmin to write a simple SQL INNER JOIN query. However, when I run the code it only will run the first line and give me a syntax error shown below. But, I can select the whole code and it will return the data I am looking for. How can I get this up and running so that I do not have to select the code I am t... | Even though pqAdmin might not require [CODE] at the end of a query, if you have multiple queries in the same script, [CODE] might be required to separate the queries. This happens in MySQL and phpMyAdmin. So, please add [CODE] just before [CODE] , and see if that works. | 1 | 2 | 5,332 | 2022-07-07T00:22:29.050 | warehouse_errors | dba.stackexchange.com | |
690,470 | rewrite destination IP of TEEed traffic | Server 1 and Server 2 (Centos 7) both host the same application, which listens on UDP port 1514. Server 1 receives traffic on this port. The goal is for the application on Server 2 to receive a copy of this traffic. Server 1 uses iptables to duplicate traffic on UDP 1514 and send it to Server 2: iptables -t mangle -A P... | You sire, are a scholar, a gentleman, and a saint! On my second server, I added a virtual loopback device with the IP of the first server, and IT'S ALIVE! Here is how to add a virtual loopback device in Centos 7: [CODE] and put in that file: [CODE] then do: [CODE] On Server 1, add a static arp entry for Server 2: [CODE... | 1 | 2 | 1,407 | 2015-05-07T21:16:44.887 | data_quality | serverfault.com | |
1,039,078 | Nginx is using old configuration even after system reboot | I recently updated my configuration because I was missing a [CODE] in all my redirects ( whoops ), so I updated my config file and ran [CODE] , saw it was still redirecting to the bad domain, ran [CODE] , and saw no changes still. I then waited over an hour for DNS to propagate in case that were the issue, but it wasn'... | I just finished chatting with a Namecheap rep. It turned out to be DNS not propagating yet, which I incorrectly ruled out earlier. As you may likely know already, it can take up to 24, even 48 hours. Speaking with someone who had not recently connected to my site allowed me to get things running as they should. | 0 | 0 | 656 | 2020-10-17T11:11:42.727 | infrastructure | serverfault.com | |
706,343 | What does it mean when a process's cpu utilization seconds does not increase even though the process is clearly running? | On a Ubuntu 12.04 system, I'm running redis. Our monitoring looks at the redis process and grabs cpu utilization out of /proc/pid/stats. Great. For tens of seconds, this number does not increase at all, then it suddenly catches up and increments by thousands. It continues to be burst in this way. During the time it is ... | I assume you're looking at one of the entries in [CODE] that includes CPU time used by child processes. If so the note in the times(2) man page explains this ... Times for terminated children (and their descendants) are added in at the moment wait(2) or waitpid(2) returns their process ID. | 0 | 1 | 87 | 2015-07-16T18:38:24.027 | database_errors | serverfault.com | |
486,421 | how to make my Linux to listen on his public ip rather than the private IP | I have a virtual machine on some public cloud. the physical IP is not routeble. the ISP provided for me with a public IP and the NAT is being done using the ISP FW. on that Server I'm running WowzaServer that is running on port TCP 1935 and TCP 80. when I log in to that server and try to telnet to the public IP on thes... | As you are trying to talk to your own public IP address from behind the NAT I think you need a NAT hairpin. The owner of the router dong the NAT would have to configure this for you but not all routers are capable of this. If your ISP cannot or won't supply you with a hairpin then there isn't very much you can do. | 1 | 2 | 641 | 2013-03-10T14:11:00.087 | api_errors | serverfault.com | |
972,037 | Postfix relay through Mailgun not recieved in GMail | I've set up an Postfix server to relay email through Mailgun to Gmail. It took some puzzling by I managed to have e-mail from my workmail get relayed through postfix to Gmail once. However, subsequent tests are not received. Postfix logs shows receiving and sending the email (as far as I can make out..). [CODE] As I ha... | The [CODE] with [CODE] and [CODE] clearly shows the message was delivered locally i.e. to a mailbox on the local system. It was not relayed to a next-hop destination. | 0 | 1 | 52 | 2019-06-19T08:15:22.240 | infrastructure | serverfault.com | |
727,903 | How do I convince my company to invest in IT - domains, security, etc.? | I work for a small-medium size retailer which has half a dozen high street stores and a website. The IT situation is currently in a very basic state. As being "Head of IT" is only a small part of my job description and the last on the list I haven't been able to put as much time into it as I would like. We have around ... | This is not going to be an IT tech answer, but hopefully useful nonetheless. Speaking from years of experience, you will not be able to convince your boss to do everything differently. The primary reason for this is that he is the boss while you are just his subordinate. You are in the wrong position to push fundamenta... | 26 | 28 | 3,125 | 2015-10-09T15:03:30.830 | database_errors | serverfault.com | |
491,315 | Advanced - and Automated - EC2 Management | I have a WordPress site currently hosted on an EC2 server. After doing some digging on the interwebs, I found Spot Instances - often half the cost of a normal instance. The problem I see with it is that the Spot instance could terminate at any time. I think I've come up with the solution (some downtime is OK) but not t... | Are you aware of Reserved Instances ? They are also significantly cheaper than On Demand instances but have the added benefit of not disappearing halfway through processing a request. | 0 | 3 | 180 | 2013-03-26T03:25:37.247 | database_errors | serverfault.com | |
105,515 | Are there revision repositories which implement commenting on revisions other than a fixed single commit message? | Sangdol asked: Why can’t I edit and SVN commit message? There are good reasons to maintain individual records ‘as is’ for historical purposes. However, there is an arguably objective hazard in not limiting the spread and use of misleading, and dangerous data. Aside: Certainly, sometimes, one should just suck up they’ve... | There is git-notes which allows you to add notes to a commit, but doesn't allow you to change the original commit message itself. I'm not sure if this is quite what you're looking for. | 7 | 2 | 159 | 2011-09-02T15:44:53.573 | api_errors | softwareengineering.stackexchange.com | |
639,933 | Can no longer add VMs on Xen/DRBD/Pacemaker Cluster | OS: Debian 7.3 & 7.6 Problem: Every attempt to manipulate (create, migrate or even list) the VM's with virsh causes this "Failed to get host power capabilities" warning. I manage a standalone Xen virtual host which produces the same warning & although it can be annoying, I've found that I can simply ignore it. Unfortun... | I tried changing libvirt for a older version but it didn't bring the desired effect so I have replaced the resource agent (ocf.heartbeat.VirtualDomain for ocf.heartbeat.Xen). This workaround solves my problem without dealing with the warning, which is there. But I am satisfied. | 2 | 1 | 209 | 2014-10-27T11:30:23.760 | infrastructure | serverfault.com | |
329,507 | Shortcutting/Clowning/Virtualising Azure SQL Database Bulk Loads | I'm currently working on a solution to bulk load (almost) structured data into an Azure SQL Database. The long term plan is to use ADF, but the client is keen to have some static data loaded early in process so they can start building BI stuff off it - and I'm keen to keep things agnostic so we can evaluate different b... | Has anyone else ever tried this sort of thing, and have they been able to work around any restrictions from BCP? Yes, I have done this a few times, including just recently. Using [CODE] is always an adventure but most of the time once it works, it works. There are too many considerations to list, but Erland Sommarskog ... | -3 | 3 | 71 | 2023-07-20T16:32:26.163 | data_quality | dba.stackexchange.com | |
1,149,216 | zpool mismatched replication level | I have accidentally added a mismatched raidz1 to an existing pool. Yes, I specified the '-f' to do it, but I was expecting to use the '-f' for a different reason and wasn't paying attention. Anyhoo... how bad is it? I really just needed extra space in the pool and wanted that space to be redundant. The pool looks like ... | Short answer: while slightly sub-optimal, your pool layout is not lacking in a major way - it is a legitimate configuration. Long answer: RAIDZ vdev are atypical in how they store data compared to a traditional RAID array. In a RAIDZ vdev some space can be lost due to a) padding and b) dynamic stripe width. I suggest y... | 1 | 2 | 69 | 2023-12-06T07:02:39.413 | database_errors | serverfault.com | |
723,919 | XenServer VHD data recovery | I have the exported disk image of a VM from XenCenter in VHD format. I used compress from the settings, if that has any impact. How I can access the files without creating VM? I have the VM settings as well the disk. Fdisk can read the image but it does not lists any partitions. I don't care about the system itself, on... | you'll need a number of steps to mount & read the image. Firstly convert VHD to RAW qemu-img convert -f vmdk -O raw myfile.vhd myfile.img The original file will of course stay intact. Next you will have to mount the file. For this there are several steps involved Firstly, connect the raw image to a loopback device. los... | 2 | 0 | 2,591 | 2015-09-22T04:55:30.677 | data_quality | serverfault.com | |
1,085,972 | Ansible blockinfile module - insert insert lines of code | I try to insert lines of code (shell script) with Ansible blockinfile module. [CODE] I have this Ansible error [CODE] I need help please :) thank you | YAML needs to be properly indented. Try this: [CODE] | 0 | 0 | 867 | 2021-12-10T19:41:44.363 | pipeline_ops | serverfault.com | |
31,725 | How to understand backpropagation using derivative | Before I was learning about gradient descent, but now I understand this. Now, I have a problem with the backpropagation algorithm. I know the idea - minimalize error in multilayer neural network using chain rule. However, I don't understand the role of the derivative of the sigmoid function. This derivative is describe... | This is a continuation to this answer . The first part of that answer covered gradient descent. In short this algorithm finds a set of parameters which results in a minimum of a function. From the description of the algorithm you can see where the derivative of the function is needed. How this applies to a neural netwo... | 0 | 3 | 819 | 2018-05-16T10:06:21.123 | data_quality | datascience.stackexchange.com | |
1,042,048 | Notifications from Amavis don't have addresses mapped by Postfix | After Amavis sends a message to [CODE] , how do I get Postfix to apply the address rewriting in [CODE] before handing the message off to my local delivery agent? I've had Amavis + Spamassassin + Postfix working for a while, marking messages as spam but still passing them through. That's working fine. I've now decided t... | After some more poking, I think I have the answer. The issue is the [CODE] option in the "returning from Amavis" block of Postfix's [CODE] . First of all, I had [CODE] specified twice. Oops! To fix the problem, I removed the [CODE] option from [CODE] . As far as I can tell, this option is recommended purely for efficie... | 1 | 0 | 408 | 2020-11-10T16:09:06.143 | infrastructure | serverfault.com | |
145,034 | Should large or old codebases be expected to be easy to navigate? | I'm an Undergraduate Computer Science Student currently on a placement year at a company that produces and supports a large enterprise web application. I'm loving the experience of seeing how software is produced in the real world, and feel very lucky to find a company that offers a chance to not only maintain and exte... | Large code bases aren't designed, they evolve. A lot of things that don't make sense when looking at a current snapshot, make perfect sense when you take history into account. And I don't just mean the individual history of the code base, I also mean the history of software engineering practices in general. Unit testin... | 8 | 19 | 982 | 2012-04-18T15:33:40.213 | api_errors | softwareengineering.stackexchange.com | |
421,921 | Ubuntu, apache2 wildcard dns to subdomain | Currently I'm hosting my own (ubuntu) server with the following services: samba, ftp and a webserver. I've bought a domain and linked the DNS A-record to my ISP's IP. This is working correctly. Now I'd like to use the DNS wildcard-record to create subdomains. I want to avoid waiting 24hrs before the DNS change complete... | You should be able to get the desired behavior with [CODE] . Within your [CODE] , add a [CODE] to catch all the domains you're interested in: [CODE] ...then map them to the desired directories. Remove your [CODE] , and in its place, add: [CODE] You'll want to have a [CODE] block allowing access, and keep in mind that t... | 0 | 2 | 5,341 | 2012-08-28T09:10:14.600 | infrastructure | serverfault.com | |
80,662 | How can I get alerted when SQLServer is unavailable | I have setup alerts to let me know when SQL Server shuts down normally. Now I want to add email alerts when it shutdown abnormally (system or process crash) What is the easiest way to setup this secondary monitoring? | You can test connectivity periodically using SQLCMD from another server. If you have another server you can use SSIS to monitor a group of servers. I've been playing with a program/webapp called splunk that can pull windows logs. You can set up a query that will get your offending entry and create an alert for when the... | 0 | 1 | 184 | 2009-11-02T19:57:09.753 | database_errors | serverfault.com | |
23,734 | Login to SQL Server 2k8 R2 SP1 via Active Directory Group | I added an Active Directory group as a Windows Authentication Login to our SQL Server 2008 R2 database. When a user who is a member of that group tries to connect to the server he is given a login failed error. If I add his specific username as a login, he is then able to connect. Should I be able to add an Active Dire... | It appears that because the security group was literally created moments before I added it as a Windows Auth Login that it hadn't synced yet with all the domain controllers. It now appears to be functioning properly. I apologize for the errant question. Thanks, Jeremie | 6 | 2 | 971 | 2012-09-05T17:28:08.440 | database_errors | dba.stackexchange.com | |
550,081 | How to enable negotiate authentication for winrm | I have disabled negotiate authentication for the winrm service on my server by executing: [CODE] And now I can perform any operation with winrm. I get the error: [CODE] I understand the error, but the problem is that the only way I find on the web to enable Negotiate authentication is by executing: [CODE] Which of cour... | Use Group Policy: Computer > Policies > Administrative Templates > Windows Components > Windows Remote Management > WinRM Service: Disallow Negotiate Authentication: Disabled. | 10 | 14 | 59,866 | 2013-11-01T10:24:40.137 | api_errors | serverfault.com | |
163,652 | SQL server is getting stuck all of a sudden | I manage a virtual SQL server that holds several databases for some applications that run in a front-end server. The issue I'm going through is that, at a specific moment during the day, the server gets stuck and the instance becomes unreachable. I can RDP the server but I cannot connect neither from SSMS nor from the ... | Try running sp_Blitz , a free health check for your SQL Server (disclaimer - I'm the author). You can also run it with @OutputType = 'markdown' if you want to share the results here at Stack. I've got a hunch that you're running into THREADPOOL waits, and sp_Blitz alerts about that. THREADPOOL means your SQL Server ran... | 1 | 3 | 2,849 | 2017-02-08T21:23:31.910 | database_errors | dba.stackexchange.com | |
321,041 | Apache becomes unresponsive when serving php | I'm having this strange problem on my c1.medium EC2 instance where Apache serves static files very well (as per [CODE] ). But, the [CODE] files don't open after a few initial requests, which are successfully fulfilled. There are enough server resources for apache to run properly. I'm feebly experienced with Apache conf... | Is it all php files? If you create a very small PHP file (i.e. "hello world" type), does it slow down too? Dan | 0 | 0 | 298 | 2011-10-13T03:21:20.320 | infrastructure | serverfault.com | |
536,487 | Load balance by header prefix | I need to balance an OAuth application. By using the [CODE] header, I can redirect the same client to the same machine - however - I want to redirect each user to the same machine, regardless of their IP or authorization token. Therefore I prepend the user-id to the auth token. Is it possible with HAproxy/nginx etc. to... | with generic-nginx i think this isnt possible; but you could use the lua-module to filter for headers and then [CODE] like setting variables or creating sub_requests etc. lua is quite helpful for such nasty hacks, but you probably have to cmpile nginx to fit your needs. but then you can have lua + memcache, and its fas... | 0 | 0 | 483 | 2013-09-05T03:14:34.297 | api_errors | serverfault.com | |
872 | Asking a new question prefills with previous question's content | When I try to ask a new question everything is prefilled with my previous questions content. This is new as of today. Bug? UPDATE: I tried a forced refresh of the page and still the same issue. I then deleted the previous content, submitted a new question, and now when I go to ask a new question it does NOT pre-fill wi... | If you leave a question or answer filled in but don't submit, it will often be saved until you return. See this meta post on saving drafts for more details. | bug | 0 | 2 | 40 | 2013-10-13T07:47:10.940 | other | diy.meta.stackexchange.com |
130,027 | Remote desktop is slow when connecting to a computer which is part of a domain | We have two windows 2003 machines, one is a DC and another is joined to the domain of the DC. These machines are not locally available to us so we have to remote desktop into them. When we first got the machines remote desktop was blazing as the machines are only a couple of miles away. I then installed AD and setup ro... | What do you mean "slow" ? Is it during the logon process (if so, what part exactly) or once you're on the desktop and using the machine ? Have you performed even a basic network route diagnostic ? Are the machine fast when you are at the console ? What's the network topology you're going through ? | 0 | 1 | 1,573 | 2010-04-07T08:45:36.660 | infrastructure | serverfault.com | |
308,212 | Why are processes increasing continuously on my apache web server? | I am running an apache 2 webserver. Everything works fine, but about every 14-20 days i have to restart the web server because it does not respond anymore. Looking at the munin statistics, i recognized, that it is related to the number of apache processes. They are increasing continuously until they reach 150. Then Apa... | This looks like you have some requests that never terminate, forcing Apache to spawn new processes until the configured maximum is reached. After that, Apache has no option to create new processes for new requests and appears dead. It's impossible to tell what might cause this with the few data you give us. Do you see ... | 0 | 1 | 3,651 | 2011-09-05T07:58:11.203 | infrastructure | serverfault.com | |
633,655 | Postfix/Dovecot configuration with virtual users | I followed this tutorial for configuring Postfix + Dovecot with virtual users (in a mysql database) : https://www.digitalocean.com/community/tutorials/how-to-configure-a-mail-server-using-postfix-dovecot-mysql-and-spamassasin I can create a user (add a row in the database), and then this user can connect with an email ... | I finally found the solution. Postfix is configured to look in the database that the user exists to deliver the email, so Dovecot shouldn't have to do it when receiving an email from Postfix to deliver. That's how it is supposed to work, and the reason why we define a static userdb. It missed one parameter so that Dove... | 2 | 3 | 4,783 | 2014-10-05T12:23:21.550 | database_errors | serverfault.com | |
180,075 | Fixed window size app development for Mac OS X | I am developing a rather eye-candy application which is to be released on Mac App Store. Due to its graphics intensive use, it would save a great deal of time on UI end if the app could be released with a fixed size main frame-dialog. I did try doing a search regarding App Store policies on the matter but could not fin... | An app will not be rejected only because it has a fixed window size. Although such a design choice could result in an inferior useabity. And that could be a reason for refusal. | 4 | 3 | 1,067 | 2012-12-19T22:38:20.193 | api_errors | softwareengineering.stackexchange.com | |
964,818 | dnscache does not return PTR records | I am working on setting up [CODE] to serve DNS data for my local network (several virtual machines, actually) and [CODE] to serve both data about my local network and big internet. So, here is my setup: machine has one interface with two ip addresses: 10.0.0.4 and 10.0.0.5 [CODE] serves data about local network on 10.0... | I found it: [CODE] in runscript of [CODE] solves issue. Not sure, why. | 0 | 0 | 92 | 2019-04-27T00:18:02.157 | infrastructure | serverfault.com | |
454,221 | Updating and deleting java (red hat / centos) (closed) | I am a total noob with linux. So please explain clearly if you have a solution for me. I have an VPS and I want to update JAVA. I found a guide on the Java site which says: rpm -e I searched for the packages: [CODE] Than I tried to do the delete command [root@srv1 ~]# rpm -e java-1.5.0-gcj-1.5.0.0-29.1.el6.x86_64 error... | Here's all you'll need to do... [CODE] - That should take care of the dependencies... If not, you can also remove the [CODE] and [CODE] packages as well. From there, you should be able to install the java package you want per the instructions. | 2 | 1 | 2,571 | 2012-12-01T22:47:12.750 | infrastructure | serverfault.com | |
1,010,439 | How to resolve a DegradedArray event when one drive has been permanently removed from RAID array? | When I installed my VPS some months ago (Ubuntu 18.04), the default RAID configuration was relying on 3 disks. I removed /dev/sdc from the array to create a new partition. RAID array is now as below: [CODE] As a result, the RAID array is still sync'ed on two disks, BUT I receive a daily "DegradedArray event" email. And... | [CODE] calls this procedure "growing". You want to "grow" the array to have two disks instead of three: [CODE] As always, before making a major change to a RAID volume, make sure you have backups! | 1 | 0 | 470 | 2020-04-01T16:21:38.893 | infrastructure | serverfault.com | |
511,108 | How do limit disc i/o during backup? | I have a cron that basically do a simple "tar zcf" in the night. The server has: 8 Cores - Intel(R) Xeon(R) CPU E5606 @ 2.13GHz 25GB RAM Ubuntu 12.04.2 LTS Hardware RAID 1 (LSI Logic / Symbios Logic MegaRAID SAS SMC2108) with two 2.728TB harddrives As you can see on the monitoring screenhost: http://clip2net.com/s/57YR... | Beside the rather general approach with [CODE] there is a nice device mapper target (ioband) which allows precise control over the bandwidth to a (DM) block device. Unfortunately it is not part of the standard kernel. Furthermore you can probably speed up tar by Reading the file names into the disk cache: [CODE] Readin... | 14 | 11 | 3,235 | 2013-05-27T08:54:40.153 | database_errors | serverfault.com | |
14,780 | Using tagged hooks to run tests with different browsers | I've looked at resources like here and here , but these solutions are not working for me. What I want to do: without involving much heavy machinery (unless I have to) and without using a third-party service (not an option), I want to run my features/tests against several different browsers without having to manually ch... | Because you are using the tags (@Chrome and @Firefox) at the beginning of your feature file (Feature). And both of them will be executed for each scenario. Another solution is to switch between the browsers via your job configurations and system property i.e. each job executes some scenarios for a specific browser. For... | 1 | 1 | 5,847 | 2015-09-18T15:11:44.857 | data_quality | sqa.stackexchange.com | |
1,075,430 | How can I find the cause of 403.18 error in IIS? | I have installed a new application under IIS. The new app has a dedicated application pool like many other applications installed on the same server. There is the root web site which also has it's own dedicated app pool. All the previously deployed applications are working fine under this configuration, but the newest ... | Well, I stumbled across the cause of this error finally. The name of the affected application had previously been configured as a virtual directory and there was still an entry for that in the applicationHost.config file. The newest version was deployed as application. There were some other obsolete entries for the app... | 3 | 2 | 5,275 | 2021-08-23T20:09:13.230 | api_errors | serverfault.com | |
1,089,907 | Deploy Odoo on Google Kubernetes: Log severity all in ERROR | I deploy Odoo 13CE on Googke Kubernetes and using Cloud Logging for logging, I config app using default container log. Everything run smoothly, except all log output severity mark as ERROR in Cloud Loging Can I change default Odoo ouput log format to JSON ? (or) Overwrite function [CODE] to make it work with deploy env... | For anyone have this problem, I have fixed this issue following these steps: In [CODE] add config: [CODE] Patch file [CODE] source here to attaching the Cloud Logging handler to the Python root logger Suppress default log output by config [CODE] log file: [CODE] (to avoid duplicate log in Cloud Logging) | 0 | 3 | 346 | 2022-01-13T12:47:07.100 | pipeline_ops | serverfault.com | |
386,020 | BAD DC transfering FSMO Roles to ADC | I have a DC (FQDN:server.icmcpk.local) and an ADC (FQDN:file-server.icmcpk.local). Recently my DC is facing a bad sector problem so I changed the Operation Masters to file-server for all five roles. but when ever i turn off the OLD DC the file-server also stops wroking with AD and GPMC further i m also unable to join a... | If I had to guess, I would say that you probably have a screwed up DNS infrastructure. The easiest thing to do is run DNS on all three Domain Controllers. Have 127.0.0.1 be the last entry in the list for each DC and have the other two DCs listed ahead of it. Make sure that your clients are configured to use at least tw... | 2 | 5 | 1,925 | 2012-05-04T10:08:29.283 | infrastructure | serverfault.com | |
620,861 | Constant error: "Grid edit, checkbox, Edit, Copy and Delete features are not available." | For the last few weeks I have been getting the same message when logging on to phpMyAdmin, which prevent me from making any updates to or deleting specific lines. I get the following notice: "Current selection does not contain a unique column. Grid edit, checkbox, Edit, Copy and Delete features are not available." Is t... | did you check this answer? https://stackoverflow.com/questions/18748073/phpmyadmin-4-0-5-grid-edit-checkbox-edit-copy-and-delete-features-are-not-a To fix this, pick a suitable column(s) in your table and create a unique index on it (or on them). Version 4.0 added this verification to avoid other problems when not the ... | 0 | 1 | 12,270 | 2014-08-16T08:57:48.330 | infrastructure | serverfault.com | |
266,996 | Lost SQL credentials and unable to connect to SQL via SQLCMD | I have a machine running SQL 2014 but have neither the windows authentication or [CODE] authentication details due to mismanagement of a previous support team. Having tried logging in to SQL Management Studio using my Microsoft AD account I received the following error: ===Cannot connect to BACKUP-MGMT-01\CONSULT.=== A... | The correct format of the parameter [CODE] for the [CODE] prompt is: [CODE] . You seem to have tried [CODE] which doesn't work. [CODE] In any case the error message is stating you are having issues with the server name and/or instance name. If your server is named [CODE] and your instance is named [CODE] then you might... | 1 | 1 | 389 | 2020-05-12T09:37:21.603 | api_errors | dba.stackexchange.com | |
264,278 | Reuse a small method from Apache Ant: How to do that correctly | I adapted some code from the Apache Ant project in my work. The part I used is really small: ~70 lines, ~2000 characters . Adding dependency to [CODE] to use that a single method seemed like an overkill. The project I work on is internal to the company, so I initially included a javadoc like [CODE] for my colleagues to... | The easiest way to get around it is to document what you need the function to do, and then give that specification to your coworker and ask them to re-write it. Seventy lines isn't a ton to rewrite, but if you were to rewrite it right now you'd know how Apache did it and possibly (unintentionally) copy their code or wa... | 1 | 4 | 1,103 | 2014-12-01T21:18:31.307 | database_errors | softwareengineering.stackexchange.com | |
840,820 | What is the difference between fail2ban and snort? | I have a server that is exposed to the internet and I would like to provide some protection against DDOS attacks. Currently, I am considering using either fail2ban and/or snort. I know that they have different approaches to how they work. From what I understand, Fail2Ban monitors log files to determine intrusions and s... | I would start with fail2ban if I was you. Both can be a drain on your resources if they aren't configured properly, but I suspect the caveats of working with regex will be more familiar to you. fail2ban is easier to make immediately useful (in my eyes at least). It is much simpler to setup to actually block malicious s... | 2 | 7 | 4,143 | 2017-03-27T13:06:55.447 | infrastructure | serverfault.com | |
140,129 | HeidiSQL solution for SQL Server error 18488? | I'm connecting to a remote database using HeidiSQL client but looks like the administrator has activated the enforce password change policy (Error 18488). Is there a workaround to solve this with HeidiSQL? Or I need to download and install SQL Server Management Studio? | You can change the password from [CODE] using [CODE] or [CODE] : -z new_password Change password: [CODE] -Z new_password Change password and exit: [CODE] | 0 | 1 | 633 | 2016-06-01T15:01:02.667 | database_errors | dba.stackexchange.com | |
384,658 | Create a new class with minimal data VS. using original class and setting non-necessary data equal to 0 or null? | I am using Scala for my example but I believe this probably could apply anywhere. Say I am using a class somewhere in my project that reads in data from a live stream of events which monitors where a player is in a 2D game at any given moment. [CODE] I then take this live data and store it in a database. Now somewhere ... | This is a classical trade-off situation . Shall we reuse something which is already there, but does not fit perfectly, or shall we create something which may fit better, but may come for the price of duplicating some code or "reinventing the wheel"? IMHO sometimes creating a new class is the best option, sometimes usin... | 2 | 2 | 48 | 2018-12-28T18:14:03.573 | api_errors | softwareengineering.stackexchange.com | |
491,030 | 1GB VPS - Apache Worker MPM - FCGID - Max concurrent connections - RAM CAP | I have spent a week or two researching and setting up my server to run Apache with the Worker MPM and FCID. I am trying to optimize it to allow for the most concurrent connections possible. It has been a nightmare to find good info on the Worker MPM. Server - VPS with 1GB RAM (With Apache off its only using about 150MB... | These settings are all about balance, how high you can get them without risking running out of memory and crashing the server, or having your processes killed by the vps parent, which it is possible that is why you are getting SegFaults. Usually when I am optimizing a server I will run the mysql tuning-primer.sh script... | 9 | 0 | 2,324 | 2013-03-25T08:52:01.270 | api_errors | serverfault.com | |
41,177 | Python Selenium - How to give 100 comma separated list values to selenium send keys? | [CODE] Not able to pass the defined 430 rows of 'z' into send keys. Could someone please help me with this.? Changed the names of sheet and google chrome due to privacy issues. | You should try looping over the list you created. z is a list, and when you don't loop over the list it tries to run only once. [CODE] | 1 | 1 | 766 | 2019-10-11T17:50:17.873 | data_quality | sqa.stackexchange.com | |
1,039,294 | How to pass in hostname from variable and update config file with the hostname in ansible | I am trying to write the hostname of a server into the config file, but its giving me issues. can you help take a look at the code? [CODE] | If you want to include [CODE] variable to [CODE] , you need to use following syntax: [CODE] And in the [CODE] task: [CODE] | 0 | 1 | 705 | 2020-10-19T13:33:28.020 | pipeline_ops | serverfault.com | |
215,445 | MySQL ZERO warnings | I'm getting the error below in my MySQL log file. [CODE] How do I turn it off? Does turning the error off have an impact on my database? I'm on MySQL 5.7.14. My.ini contains this: [CODE] | Check on a test system disabling those 3 sql modes. If success, disable them on the real system and you have solved one problem you where going to encounter in the next database update. | 0 | 0 | 7,552 | 2018-08-21T06:46:14.320 | database_errors | dba.stackexchange.com | |
189,453 | Java vs PHP Memory / CPU Consumption | I work in a PHP based company. There is a project where we want to create a backend service. Senior members here are going for PHP, even though it is slower than Java. Their only point of contention, that Java is heavier than PHP in both memory and cpu load standpoint. Jvm is more like a container environment, if u bri... | If you're worried about speed, write the back-end in a compiled, fast-as-you-like language such a C or C++. There are plenty of webservice tooling to create simple C/C++ web services that you can consume from your PHP clients. However, if you want to code it quickly and performance isn't so bad, then write it in PHP. Y... | 8 | 10 | 17,652 | 2013-03-06T12:33:38.240 | pipeline_ops | softwareengineering.stackexchange.com | |
903,591 | DCOM identity and authentication from inside a Windows Container | I’m in the process of trying to containerize a Windows DCOM application that uses RPC to connect to a particular service. Normally I would grant the DCOM application server dcom remote permissions on the RPC endpoint server and everything works fine. I loaded my application inside a container image running on Server 20... | Maybe try running your container using the identity of a Group Managed Service Account as described here: https://docs.microsoft.com/en-us/virtualization/windowscontainers/manage-containers/manage-serviceaccounts | 0 | 0 | 1,834 | 2018-03-20T14:08:04.863 | pipeline_ops | serverfault.com | |
851,210 | Two drive ZFS pool, second drive overwritten with data. How do I restore/copy data back to the second drive? | Data is intact in the first drive, second drive is "UNAVAIL". Reason for overwrite is my lack of concentration while applying dd command ... Command [CODE] Gives [CODE] I took the disk offline and removed partitions with Gparted. After reboot they reappeared, and [CODE] -command did not work. Command [CODE] and [CODE] ... | I took the disk offline [CODE] Detached the drive [CODE] Cleared label [CODE] Attached the disk back [CODE] And now it is resilvering. [CODE] | 2 | 2 | 712 | 2017-05-19T21:39:43.403 | database_errors | serverfault.com | |
659,781 | Fail to do apt-get update on Ubuntu 12.04 Precise | I recieve this error all the time when I try to do apt-get update so that can not install or remove software with apt [CODE] I think the reason is this error [CODE] I already try as root [CODE] and the same problem, remove entire /var/lib/apt then run apt-get update also the same problem. This is my first time, I think... | I had this issue today, I fixed it by remove all the apt lists and running apt-get update again. [CODE] Hope this helps! | 1 | 1 | 7,036 | 2015-01-15T14:40:30.750 | infrastructure | serverfault.com | |
513,901 | 451 Timeout trying to verify RCPT errors from some external contacts | Outside contacts at two companies report messages they sent to us return with the following message: 451 Timeout trying to verify RCPT validemail@ourdomain.com for domain One of the companies is a very large international organization and so I doubt the issue is on their end, necessarily. I understand this message gene... | The best way would be to work on that issue together with the remote company. They can check there logs while you can check your logs. If your Server really caused an timeout they might quickly adjust the MailTimeout value on there side as mentioned here . So if this setting is on 4 hours (as it looks like currently) t... | 1 | 1 | 1,989 | 2013-06-06T19:28:32.863 | database_errors | serverfault.com | |
844,677 | Server wiped after "yum remove python" | A disaster just occurred to me after I ran the command [CODE] and now I can't boot the server up anymore. How it happened: I tried updating some apps via yum on my CentOS 5 VPS and the command was failing due to some weird python 2.4 error. I noticed that my version of python was old and I tried reinstalling it by firs... | I'm sincerely sorry: I can feel the pain to have a server unbootable/unserviceable. However, I'm lost when reading that: After that it asked me something about removing dependencies and it looked like nothing I could miss so I clicked [Y] The list of to-be-removed packages surely was really huge, as [CODE] is an essent... | 66 | 69 | 21,528 | 2017-04-15T18:54:31.367 | infrastructure | serverfault.com | |
235,725 | What are the advantages of registered memory? | I'm browsing for a few low-end servers for a startup and I'm a bit confused about the different memory types. The advantage of ECC is clear - single-bit error correction. When it comes to registered memory it seems more vague, especially in systems that support both registered and unbuffered memory. A Google search mos... | Two reasons leap to mind but both are due to the same technology. Basically Registered memory can wait for writes to 'fill' the available buffer, it's a bit like a synchronous link in that respect. This means that all of the reads or write collecting at the start or end of a edge signal - this makes it faster overall t... | 5 | 6 | 2,685 | 2011-02-15T14:51:30.063 | infrastructure | serverfault.com | |
416,158 | Is there a name for the data structure [object, list, primitive] e.g. JSON? | tl;dr - I've settled on the terminology [CODE] for the container type which includes [CODE] and [CODE] but excludes [CODE] , and [CODE] for anything which is not traversable, e.g. cannot nest indefinitely. This makes the top-level type signature of [CODE] something like [CODE] . I still need to figure out the correct r... | It’s called a JSON document. JSON has restrictions like numbers cannot be Infinity or NaN, but they can be have large numbers of decimals. How you implement it is up to you. There are plenty of different data structures with slightly different or very different rules. For example, MacOS property lists are very similar ... | -2 | 4 | 388 | 2020-09-23T16:28:05.690 | pipeline_ops | softwareengineering.stackexchange.com | |
239,085 | How to diagnose a webserver locking on high load | I have troubles understanding what problems may cause the occasional hangs that the server gets due to sudden high load spikes. I am not a system administrator (I'm a PHP programmer) but since the official sysadmin is quite lacking on effort I'm asked to find a solution myself. The server runs on a Debian Lenny and ser... | Regarding the Apache issue, one possible cause is that your MaxClient/MaxServer setting is too high. When you get spike in traffic you use up all your RAM and cause Apache to start using swap which will very quickly kill your performance. Next time you have the issue check the output of top/free and see if any swap is ... | 2 | 3 | 1,402 | 2011-02-23T10:32:24.907 | infrastructure | serverfault.com | |
329,130 | Can apache use a key agent to store private keys for SSL? | For mod_ssl in apache to work, you need your RSA private key on the server. If the key is passphrase protected, you have to enter the passphrase whenever you restart apache. There is [CODE] so you can store the key encrypted and have a program pass it the phrase, but that really isn't any more secure than keeping it un... | Your idea is interesting at first sight but it is not really relevant. Your proposal only pushes the security issue elsewhere. Your Apache2 process will have to communicate with the "private key cache" thanks to IPC or API and this channel should be protected too or else an attacker may query the certificate easily. So... | 4 | 2 | 1,815 | 2011-11-09T01:07:30.797 | infrastructure | serverfault.com | |
708,392 | Nginx randomly refuses SSL connections | I am running the website https://telerandom.com (NodeJS server, port 9576) behind an Nginx reverse-proxy. It usually works, but on occasion, it begins to refuse all SSL connections from certain users (while working perfectly normal for everyone else). This period of refusing SSL connections usually lasts for about 45 m... | There is nothing special in the server log which shows a problem at the site of nginx. But, you description clearly indicates a problem in the clients network, i.e. only clients in the same network are affected all clients in the same network are affected if client connects to another network while experiencing the pro... | 0 | 3 | 787 | 2015-07-25T00:49:56.770 | infrastructure | serverfault.com | |
679,170 | Find different switches from cdp output | I have three cisco switches, all with CDP enabled. From the console of the "core" switch I give the command "show cdp neighbors" and the output is: [CODE] So I try to see if the two "Switch" entries indicate different switches or two paths to to same switch, and I try the command "show cdp entry Switch". This is what I... | Identically configured switches of identical models and software versions are identical in CDP; the advertisement doesn't include a MAC address or serial number that would differentiate the switches (though if desperate, you could capture the CDP packet - the source MAC in the ethernet header would give you that (thoug... | 0 | 1 | 154 | 2015-03-29T21:38:01.260 | infrastructure | serverfault.com | |
238,716 | How to find dropped or ghosted columns in Azure SQL DB? | In SQL Server, dropping a column is a metadata only change; the data remains in the index until the index is rebuilt. On prem, I use system_internals_partition_columns to determine what indexes have this ghosted column so I can rebuild and reclaim the space. This internal table is not accessible in Azure. Does anyone k... | Since Azure database is MSSQL server then you can execute the following command to find how many ghost process per database [CODE] And if you are looking for more detailed report then you can execute the following command [CODE] Looking for long term solution to start recording this data then you can check this post . ... | 3 | 0 | 407 | 2019-05-21T17:56:30.830 | database_errors | dba.stackexchange.com | |
732,500 | Powershell Remoting security implications by adding users to WinRMRemoteWMIUsers | In our current workflow, we have to RDP to several servers just to know if a service is up-and-running. We do not have admin rights to those servers but are allowed to view, start and stop services. We would like to use Powershell Remoting instead. Something like [CODE] would be both easier and faster to do. Am I corre... | We can't do anything to the system we couldn't be doing right now by just by RDP'ing to it (security management's concern). The risk is an attacker may have access via PowerShell if an account in that group is compromised. Evaluating the risk of that access and the compensating controls is something you need to determi... | 2 | 5 | 1,582 | 2015-10-29T12:37:50.260 | infrastructure | serverfault.com | |
142,334 | Fail to connect from MySQL Workbench to remote server | After trying many different suggestions as found on the net, I'm still unable to establish a connection from the Workbench application to the server. Here is a brief list of things I tried: 1) Granting all privileges on . to 'root'@'%' ; (+flush privileges), 2) Creating a new user 'test'@'%' and granting all privileges... | The issue had nothing to do with MySQL parts. It turned out that Linux's firewall and Selinux were blocking access from outside the server. Once turned off, the connection worked perfectly. Two things I learned from this: 1) Check better the ENVIRONMENT before blaming the product, 2) MySQL could improve the clarity of ... | 2 | 2 | 2,834 | 2016-06-27T08:38:17.133 | database_errors | dba.stackexchange.com | |
964,495 | Postfix/Amavis : send group messages separately and do not fail if one recipient fails | Background: We have a online shop which is using a SMTP server to send messages. When a customer place an order, the system sends the confirmation to the customer's address (A), and a copy to other two accounts (B and C) which are registered in the same SMTP server. Problem: If the customer input a wrong email address ... | I had the exact same issue. I was able to resolve by adding a warn_if_reject in front of reject_unknown_recipient_domain in my smtpd_recipient_restrictions | 0 | 1 | 393 | 2019-04-25T02:24:18.937 | infrastructure | serverfault.com | |
98,118 | Composite Primary Key in multi-tenant SQL Server database | I'm building a multi-tenant app (single database, single schema) using ASP Web API, Entity Framework, and SQL Server/Azure database. This app will be used by 1000-5000 customers. All the tables will have [CODE] (Guid / [CODE] ) field. Right now, I use single field Primary Key which is Id (Guid). But by using just the I... | Having worked on a large-scale, multi-tenant system (federated approach with customers spread across 18+ servers, each server having identical schema, just different customers, and thousands of transactions per second per each server), I can say: There are some folks (a few, at least) who will agree on your choice of G... | 26 | 49 | 7,057 | 2015-04-17T08:12:55.800 | database_errors | dba.stackexchange.com | |
94,781 | Handling out of hours support | This isn't a programming question per se - more about application management. I work for what started out as quite a small company, which has grown rather quickly and become very succesful in a relatively small period of time. Nearly all trade happens online, and our IT team is very small relative to the amount of mone... | I am disappointed at the number of answers here that suggest that the OP should get paid for his after hours support when he clearly states in the question that management will not not only leave it up to them to determine how after hours support will be handled, but also that they will NOT reimburse them extra in anyw... | 6 | 1 | 2,584 | 2011-07-21T11:29:59.983 | api_errors | softwareengineering.stackexchange.com | |
1,134,382 | Forward default mySQL port to a different port for outgoing traffic to a specific IP or Domain | We're using a hosted mySQL Database server which generates a port other than the default 3306, which we have no control over. We'd like to not have to make changes to our existing connection scripts on all our Ubuntu 22 application servers since most typically use the default 3306 to connect to any mysql host. Is there... | While you could fudge it with iptables, why bother? After all you need some abstraction between your DBMS and application to handle failover to a backup DBMS (and VIPs suck). Just configure whatever you are using (e.g. haproxy, sqlproxy) to connect to a different port. | 1 | 0 | 325 | 2023-06-20T20:13:09.617 | database_errors | serverfault.com | |
44,242 | Size of Output vector from AvgW2V Vectorizer is less than Size of Input data | Hi, I have been seeing this problem for quite some time. Whenever I tried vectorizing input text data though avgw2v vectorization technique. The size of vectorized data is less than the size of the input data. Is there any statistical reason behind this? In my case 100K is the size of the input and it gives 999,98 size... | I think the issue can be one of the two : A . You have missing value in [CODE] B . One of the values in [CODE] has no word that is there in [CODE] . In both the cases , [CODE] condition doesn't get satisfied and you end up not addding any new value to [CODE] | 0 | 0 | 73 | 2019-01-19T17:02:25.817 | data_quality | datascience.stackexchange.com | |
168,760 | Guidelines for creating referentially transparent callables | In some cases, I want to use referentially transparent callables while coding in Python. My goals are to help with handling concurrency, memoization, unit testing, and verification of code correctness. I want to write down clear rules for myself and other developers to follow that would ensure referential transparency.... | The goal of enforcing referential transparency (RP) may be a bit ambitious given the presence of file IO and global variables. Instead, you can make it a best practice, which basically seems like that you wish to do. Rules 1 and 2 will certainly push you into the direction of RP, but they are somewhat problematic. Firs... | 3 | 2 | 506 | 2012-10-13T13:23:28.577 | api_errors | softwareengineering.stackexchange.com | |
1,027,088 | Can we resize the EBS volume when snapshot is in progress? | I've an ec2 instance with root volume and additional volume attached, additional volume is 92% used. I took a ebs snapshot , but looks like its very slow. Can I go ahead and increase the volume size and expand the volume while snapshot is in progress ? or should I wait until the snapshot is finished ? Is it safe? | Just if in case anyone has the same question, I was able to expand my volume while the volume was optimizing and when snapshot was in progress. https://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/recognize-expanded-volume-windows.html | 4 | 2 | 1,239 | 2020-07-28T16:38:17.720 | infrastructure | serverfault.com | |
563,194 | Apache2 server stops responding | I am looking for suggestions on where shall I dig deeper. Shortly, Apache2 server stops serving requests after 2-15 hours of being started. As a result I have to do [CODE] each half of a day. Long version: I am running few websites (Apache 2.2.22 Built Jul 12 2013) from a dedicated server (Ubuntu 13.04). Apache2 server... | No matter what "service apache2 status" reports, do you see apache processes when you do ps aux? Can you do a netstat -n when the problem occurs? Maybe you run out of a resource eg file descriptors, you may have too many open connections. During the problem do you have high cpu utilization? Maybe the system runs out of... | 3 | 3 | 3,932 | 2013-12-23T16:42:41.700 | data_quality | serverfault.com | |
81,232 | Unable to create a datasource. Datasource fails to 'test successfully' for SSRS | I imported an SSRS 2008 Datasource to SSRS 2012 using RS Scripter tool. The DB connection is the same for the SSRS 2008 and SSRS 2012 data source created. I can 'test successfully' the login/pw for SSRS 2008 datasource, but 'fail' with SSRS 2012. The login has permissions and exists (They are the same for both SSRS dat... | The issue had to due with Windows GPO it was unknown to me at the time http://technet.microsoft.com/en-us/library/bb326317%28v=sql.90%29.aspx | 2 | 2 | 4,334 | 2014-10-27T23:45:42.247 | bi_errors | dba.stackexchange.com | |
110,771 | moving large PostgreSQL/PostGIS database | I need to move and upgrade a very large (~320 GB) PostGIS database from server1 (PostgreSQL 9.1, PostGIS 1.5) to server2 (PostgreSQL 9.3, PostGIS 2.1). The upgrade process is well-documented . The problem is I don't have enough space on server1 to dump the file there, checksum it, then copy it to server2 and verify sum... | I would recommend dumping the 9.1 database from your new 9.3 server like this: [CODE] I recommend using the 9.3 [CODE] as [CODE] is always backwards compatible, but not forward compatible. In other words, the newer [CODE] will take care of any syntax changes that the new server requires that the older utility doesn't k... | 8 | 7 | 1,679 | 2015-08-12T09:24:29.177 | database_errors | dba.stackexchange.com | |
1,083,211 | NET::ERR_CERT_AUTHORITY_INVALID with self-signed CA in Windows | I created a (self-signed) root certificate and signed a web server certificate using a system I developed in Java (the web certificate is used in Apache 2.4.41). The certificates work without issues in Linux and Mac (tested in different Webkit browsers and Firefox). The certificate and the server setup scores [CODE] us... | There are two issues with the certificates posted in the question: Both certificates are using one shared key. As a certificate should bind a key to its owner (Subject) it really doesn't make sense to use one key for two subjects. As a consequence of the above, the Subject Key Identifier and Authority Key Identifier ha... | 1 | 1 | 2,858 | 2021-11-11T05:06:03.083 | infrastructure | serverfault.com | |
424,481 | Mysql PID Error, Locking Database | I changed my.cnf file to add some parameters in it but after restarting the service it failed to start giving locking error. i removed locks using rm command and again trying to restart but it not starts I also update it to my.cnf backup file. When i check the service status and trying to restart it giving the below me... | [CODE] It means that MySQL doesn't shutdown properly. The pid was removed but the lock file still exists. Delete the lock file and try again: [CODE] | 2 | 3 | 9,829 | 2012-09-05T10:39:05.390 | database_errors | serverfault.com | |
693,122 | Is capolicy.inf processed in full (or part) during server install, renewal, and issuing new certs | When installing a Windows CA, capol.inf confuses me. It seems that capol.inf does set defaults for the CA that can otherwise be done using certutil's registry functions (or regedit). It also appears to have a role when renewing a CA cert. Finally, it seems to also set defaults for newly issued child certificates, but n... | CAPolicy.inf is used to specify settings that affect CA certificate itself and cannot be configured elsewhere (nor by certutil or MMC GUI). This includes (but not limits to) CA certificate renewal validity, key length, alternate signature algorithm, certificate extension configuration. This file is processed only durin... | 2 | 2 | 407 | 2015-05-19T19:46:27.253 | infrastructure | serverfault.com | |
958,032 | SSL Certbot in a domain with 301 redirect and nginx | I have one server at home working with a dynamic domain (mydomain.ddns.net) through my OpenWRT router. Now I want to host a web and I have bought a domain (www.mynewdomain.com) in GoDaddy and I have set up a 301 Redirect with masking (so people keep seeing www.mynewdomain.com instead of mydomain.ddns.net). The problem ... | There are some things that are not explained in the formulation of the situation, so I will attempt to explain how it should be and then you feel free to ask further or tell me more details, so I can explain. At Godaddy you have also a server with nginx? if so, for the domain [CODE] the best is to obtain the cert there... | 0 | 1 | 1,769 | 2019-03-13T08:02:58.633 | api_errors | serverfault.com | |
651,787 | How would you set up multiple SSL terminating Haproxy instances, which are themselves load balanced? | I've been doing a great deal of research and experimentation on this, and I'm really running into a wall: I'm trying to set up HAProxy as the reverse proxy for a high-availability environment. All traffic going into and out of this environment is SSL encrypted, so the original design was to have HAProxy do the SSL term... | Two haproxy instances can share load by using 2 virtual IPs with each instance the master for one of those. Round robin DNS roughly balances between the 2 virtual IPs (and consequently between the two haproxy instances). This method also works with SSL. One reason to think twice about this active-active setup though is... | 2 | 3 | 1,686 | 2014-12-11T09:15:26.047 | database_errors | serverfault.com | |
631,734 | php with fcgid not working anymore after upgrade to wheezy | I have some issues with a server that I have recently upgraded from Debian Squeeze to Debian Wheezy . When I call a php-page only the php-source-code of the page is beeing show but not interpretated as script. The php is configured as fcgid : [CODE] I am aware if this post, but the solution doesn't work for me. I tried... | The issue was caused by [CODE] . To resolve this issue, deactivate [CODE] : [CODE] More information can be found here and here . | 0 | 3 | 1,282 | 2014-09-27T08:59:59.640 | infrastructure | serverfault.com | |
792,841 | GeForce GTX 1060 card in Dell R710 or R730xd for machine learning? | We are investigating speeding up some machine learning code written using Theano and Keras, in particular by getting a GPU card. Does anyone have direct experience with this or a very similar combination? Specifically, we are interested in people's experiences about: Is it physically possible to install a card such as ... | You'll need the Nvidia proprietary drivers to use CUDA/OpenCL. The card will need to be configured with X as the Nvidia drivers are X drivers, though it can still be configured to be "headless" and you can have multiple graphics cards. Some details on running GPUs in headless servers from: https://sites.google.com/site... | 0 | 1 | 1,559 | 2016-07-30T05:03:05.160 | infrastructure | serverfault.com | |
321,788 | conversion failed when converting date and/or time from character string only on one of the server | I have a sql query as follows: [CODE] But in this sql-server query when i enter date manually like '01/06/2023' it shows data in table but whenever i enter getdate() function to get current date automatically it shows no data only shows blank table | when i enter date manually like '01/06/2023' it shows data in table but whenever i enter getdate() function to get current date automatically it shows no data [CODE] returns the current system timestamp as a [CODE] value ( date and time to the milliseconds ). That's obviously different than just the [CODE] value string... | -1 | 2 | 1,253 | 2023-01-06T09:24:59.277 | database_errors | dba.stackexchange.com | |
290,833 | Names for the two types of AI (in my eyes)? | In my head, AI attempts get sorted into two categories. I'm wondering if the distinction is present in reality or just my imagination. If this it's real, I'd like to know of any terms for them. The two types are as follows. The first (in an arbitrary order) is mostly seen in modern times. It consist of simulating the h... | You might consider that the first is related to machine learning , but the second is symbolic Artificial Intelligence . J.Pitrat's blog has an entry: the future of AI is the Good Old Fashioned AI explaining why symbolic AI could still be relevant. BTW, you might be interested by Artificial General Intelligence , as a r... | 3 | 3 | 706 | 2015-07-25T22:20:18.140 | api_errors | softwareengineering.stackexchange.com | |
777,778 | Apache Tomcat requires an abnormal amount of time to start in CentOS 7 | I am experiencing a weird issue on a CentOS 7 virtual machine and I can't see what is causing it. I created the VM on Digital Ocean and set it up as follows: 1) modified [CODE] with [CODE] 2) modified [CODE] as such [CODE] 3) Configured nginx to reverse proxy [CODE] That's it. I then downloaded a vanilla Apache Tomcat ... | The problem is Tomcat waiting for entropy to build up. Try add the following system property: [CODE] See: Tomcat7 hangs on deploying apps | 0 | 1 | 167 | 2016-05-19T14:15:26.257 | database_errors | serverfault.com | |
182,816 | Is there any limit to AIX 5.3 pipe size? | I'm in trouble while performing cat/tail/head operation on large files on Aix 5.3. When asking for a cat of several 1Go file redirected to another one: [CODE] The outputfile is limited to 2Go (cat: output error and result file is 2147483647 bytes) Filesystem is jfs2. I successfully uploaded through ftp 10Go files on th... | You've said you're using ext2, but that's a Linux filesystem. I assume you meant JFS2? JFS2 and cat both support >2GB files, so I think the most likely thing is the ulimit values - you've put in the contents of /etc/security/limit, but what happens if you run [CODE] as the person executing cat? If you're actually using... | 0 | 2 | 2,831 | 2010-09-20T12:27:09.647 | infrastructure | serverfault.com | |
557,378 | How to `augtool` to maintain `/etc/aliases` file? | I'd like to ensure that I have the lines ... [CODE] ... in my [CODE] file and I have been learning about [CODE] . I know I could do something like this with augtool ... [CODE] ... but I do not like hard coding the [CODE] . It is quite possible on some systems [CODE] might be the 10th name/value pair. Is there a way to ... | Working with [CODE] entries (these numbered entries, such as [CODE] in your case) in Augeas can be a little bit tricky. Using [CODE] still You can make yourself an augtool script that looks like this: [CODE] The shebang ( [CODE] ) uses [CODE] to automatically save after making the changes, and [CODE] to take a file wit... | 3 | 4 | 1,919 | 2013-11-25T21:57:15.350 | infrastructure | serverfault.com | |
638,674 | Keepalived (LVS) + SPDY | I've got [CODE] configured with [CODE] to spread the load between four Nginx web servers (RR mode, no persistence connections). I was planning to enable SPDY however it seems that [CODE] sets up a single TCP connection per host so when a web node is removed from the pool, client tries to send further requests down the ... | Try turning on persistence and then expire_quiescent_template [CODE] http://www.mjmwired.net/kernel/Documentation/networking/ipvs-sysctl.txt | 2 | 1 | 348 | 2014-10-21T19:27:27.893 | infrastructure | serverfault.com | |
33,667 | oracle clob export/import across non linked instances | I'm trying to migrate table data across two instances(different instance schemas, but same table schema) that are not connected(not an option). The problem is that I can not access host file systems and the table has large number of rows with CLOB data(with newlines of course). TOAD exports with delimited text, insert ... | You can use the legacy (but still supported) [CODE] utility to export a table/schema/DB to your local computer, and then use [CODE] to import the data on another instance. | 0 | 0 | 1,337 | 2013-01-28T14:32:34.647 | database_errors | dba.stackexchange.com |
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