threads listlengths 1 275 |
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[
{
"msg_contents": "Hi All,\n\nWe have a Postgres 7.4.1 server running on FreeBSD 5.2. Hardware is a Dual\nXeon 2.6 (HT enabled), 2 GB Memory, 3Ware SATA RAID-5 w/ 4 7200 RPM Seagate\ndisks and gigabit Intel Server Ethernet. The server is dedicated to serving\ndata to our web-based CMS.\n\nWe have a few web se... |
[
{
"msg_contents": "Hi Paul,\n\nThanks for the valuable feedback. I suspect you're correct about the\nserialization in some capacity, but the actual cause is eluding me.\n\nBasically, every time a registered user checks a page, the site has to\nauthenticate them (with a query against a table with > 200,000 reco... |
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{
"msg_contents": "Hi everybody..\n\n \n\n Before anything else I would like to thank all those person who answers\nmy previous question. again thank you very much\n\n \n\nThis is my question .\n\n \n\n In my query .. Select * from table1 where lastname LIKE 'PUNCIA%'..\n\n \n\nIn the query plan ... |
[
{
"msg_contents": "Hello I'm tuning a postgresql (7.4.2) server for best performance .\nI have a question about the planner .\nI have two identical tables : one stores short data (about 2.000.000\nrecord now) and\nthe other historycal data ( about 8.000.000 record now and growing ...) \n\n \nA simple test query... |
[
{
"msg_contents": "(Sorry if this ends up being a duplicate post, I sent a reply yesterday, \nbut it doesn't appear to have gone through... I think I typo'd the address \nbut never got a bounce.)\n\nHi,\n Thanks for your initial help. I have some more questions below.\n\nAt 05:02 AM 5/12/2004, Shridhar Daitha... |
[
{
"msg_contents": "\n\n>>>> Index Scan using pk_storico_misure_2 on storico_misure \n>>>>(cost=0.00..1984.64 rows=658 width=21) (actual \n>>>time=723.441..1858.107 \n>>>>rows=835 loops=1)\n>>>> Index Cond: ((data_tag > '2004-05-03 \n>>>00:00:00'::timestamp without \n>>>>time zone) AND (data_tag < '2004-05-12 ... |
[
{
"msg_contents": "Hi folks,\n\nI need some help in a TPCH 100GB benchmark.\n\nI described our settings in:\nhttp://archives.postgresql.org/pgsql-performance/2004-04/msg00377.php\n\nSome queries are taking to long to finish (4, 8, 9,\n10, 19,20 and 22) and I need some help to increase the\nsystem performance.\n... |
[
{
"msg_contents": "Hi all,\n\ni have a question, is there any advantages in using numeric(1) or numeric(2) \nin place of smallint?\nis there any diff. in performance if i use smallint in place of integer?\n\nThanx in advance,\nJaime Casanova\n\n_________________________________________________________________\n... |
[
{
"msg_contents": "Hi All,\n\nI have recently started evaluating Postgresql 7.4.2 to replace some *cough*\nmore proprietary database systems... Thanks to the _excellent_ documentation\n(a point I cannot overemphasize) I was up and running in no time, and got a\nfirst test application running on the native C int... |
[
{
"msg_contents": "I'm working on a project using PostgreSQL as our database designing a budget\nsystem. We are still in the design and testing phases but I thought I would\nask advice about a platform to host this system.\n\nWe aren't a large system, probably no more than 50-75 users at any one time.\n>From a... |
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{
"msg_contents": "Hello,\n (note best viewed in fixed-width font)\n\n I'm still trying to find where my performance bottle neck is...\nI have 4G ram, PG 7.3.4\nshared_buffers = 75000\neffective_cache_size = 75000\n\nRun a query I've been having trouble with and watch the output of vmstat \n(linux):\n\n$ vms... |
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{
"msg_contents": "All,\n\nDoes PG store when a table was last analyzed?\n\nThanks,\n\n\n\n\n\t\n\t\t\n__________________________________\nDo you Yahoo!?\nSBC Yahoo! - Internet access at a great low price.\nhttp://promo.yahoo.com/sbc/\n",
"msg_date": "Tue, 18 May 2004 14:13:21 -0700 (PDT)",
"msg_from": ... |
[
{
"msg_contents": "After reading the replies to this, it is clear that this is a \nLintel-centric question, but I will throw in my experience.\n\n > I am curious if there are any real life production\n > quad processor setups running postgresql out there.\n\nYes. We are running a 24/7 operation on a quad CPU S... |
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{
"msg_contents": "Hi Guys,\n\n \n\n My question is .. which is better design\n\n \n\n1.\tSingle Table with 50 million records or\n2.\tMultiple Table using inheritance to the parents table\n\n \n\n \n\nI will use this only for query purpose ..\n\n \n\nThanks ..\n\n \n\n \n\n\n\n\n\n\n\n\n\n\nHi Guys,\n ... |
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{
"msg_contents": "See http://kerneltrap.org/node/view/3148, about 40% down, under the \nheader \"2.6 -aa patchset, object-based reverse mapping\". Does this mean \nthat the more shared memory the bigger the potential for a swap storm?\n",
"msg_date": "Wed, 19 May 2004 15:26:31 -0400",
"msg_from": "Jos... |
[
{
"msg_contents": "Hello for all!\n\nI have PostgreSQL 7.4 under last version of Cygwin and have some\nproblems with performance :( It is very strange... I don't remember\nthis problem on previous version Cygwin and PostgreSQL 7.3\n\nI have only two simple tables:\n\nCREATE TABLE public.files_t\n(\n id int8 N... |
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{
"msg_contents": "Duane wrote:\n\n > P.S. I've only just begun using PostgreSQL after having\n > used (and still using) DB2 on a mainframe for the past 14\n > years. My experience with Unix/Linux is limited to some\n > community college classes I've taken but we do have\n > a couple of experienced Linux sysad... |
[
{
"msg_contents": "Hello,\n\nI have the following problem:\n\nWhen I run some query after I just run the Postmaster, it takse\nseveral seconds to execute (sometimes more than 10), if I rerun it\nagain afterwards, it takes mere milliseconds.\n\nSo, I guess it has to do with PostgreSQL caching.. But how exactly\n... |
[
{
"msg_contents": "All,\n\nI have a particularly troublesome table in my 7.3.4 database. It \ntypically has less than 50k rows, and a usage pattern of about 1k \nINSERTs, 50-100k UPDATEs, and no DELETEs per day. It is vacuumed and \nanalyzed three times per week. However, the performance of queries \nperformed ... |
[
{
"msg_contents": "Not knowing a whole lot about the internals of Pg, one thing jumped out \nat me, that each trip to get data from bv_books took 2.137 ms, which \ncame to over 4.2 seconds right there.\n\nThe problem \"seems\" to be the 1993 times that the nested loop spins, as \nalmost all of the time is spent... |
[
{
"msg_contents": "I will soon have at my disposal a new IBM pSeries server. The main \nmission for this box will be to serve several pg databases. I have \nordered 8GB of RAM and want to learn the best way to tune pg and AIX for \nthis configuration. Specifically, I am curious about shared memory \nlimitat... |
[
{
"msg_contents": " > Hello Marty,\n >\n > MS> Is that a composite index?\n >\n > It is a regular btree index. What is a composite index?\n\nMy apologies. A composite index is one that consists of multiple fields \n(aka multicolumn index). The reason I ask is that it was spending \nalmost half the time just s... |
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{
"msg_contents": "Hi,\n\n \n\nHow can I automatically kill a process in the database (ex a select or\nexplain) if it exceeds my limit of 2 or 3 mins ..\n\n For example : I have a query that already running for 3 or 4 mins I want to\nkill that process for a reason and return a\n\nSignal to the user.\n\n \n\nTha... |
[
{
"msg_contents": "I can't understand what's going on in this simple query:\n\nselect c.name from Candidate C where\n C.candidate_id in (select candidate_id from REFERRAL R\n where r.employee_id = 3000);\n\n\nWhere Candidate.CANDIDATE_ID is the primary key for Candidate.\nHere's the EXPLAN... |
[
{
"msg_contents": "Hi. i hava a postresql 7.4.2 in a production server.\n\ntha machine is a Pentium IV 2,6 GHZ AND 1 GB IN RAM with lINUX RH 9.0.\n\nThe postresql.conf say:\n\n#---------------------------------------------------------------------------\n# RESOURCE USAGE (except WAL)\n#--------------------------... |
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{
"msg_contents": "I wanted to solicit some opinions on architecture and performance from \nyou guys.\n\nI am torn right now between these two systems to replace my aging DB server:\n\n4 x 2.2 GHz Opteron\n8GB RAM\nUltra320 15kRPM RAID5 with 128MB cache\n\nand\n\n2-way 1.2GHz POWER4+ IBM pSeries 615\n8GB RAM\nU... |
[
{
"msg_contents": "Hai all,\n\n I want to log my queries send to the Postgresql server. I heard\nthat we can do this my specifying the file name in \n\n/etc/rc.d/init.d/Postgresql initiating file. But I don't know. If this is\nthe way means how to do that. Or anyother way is there.\n\n \n\nThanks is a... |
[
{
"msg_contents": "I'm trying to create a trigger (AFTER INSERT, UPDATE, DELETE) as an audit\nroutine inserting into an audit table the \"before\" and \"after\" views of the\nrow being acted upon. My problem is I defined the \"before\" and \"after\"\nfields in the audit table as TEXT and when I try to move NEW... |
[
{
"msg_contents": "Hello pgsql-performance,\n\n I was using the native windows PostgreSQL 7.5Dev and was adviced by\n several people to use an emulated PostgreSQL instead, as it is just\n a beta.\n\n Well, I give it a whirl and tried both commercial VMWare and the\n freeweare open-source CoLinux, both work... |
[
{
"msg_contents": "This was a lively debate on what was faster, single spindles or RAID.\n\nThis is important, because I keep running into people who do not \nunderstand the performance dynamics of a RDBMS like Oracle or Pg.\n\nPg and Oracle make a zillion tiny reads and writes and fsync() \nregularly. If your... |
[
{
"msg_contents": "\nDear all,\n\nHave anyone compiled PostgreSQL with kernel 2.6.x \nif YES\n1. Was their any performance gains\nElse\n1. Is it possible\n2. What problems would keeping us away from compiling on kernel 2.6\n\n-- \nBest Regards,\nVishal Kashyap\nDirector / Lead Software Developer,\nSai Hertz And... |
[
{
"msg_contents": "Dear reader, \n\nI am investigating whether it is useful to directly query a database\ncontaining a rather large text corpus (order of magnitude 100k - 1m\nnewspaper articles, so around 100 million words), or whether I should\nuse third party text indexing services. I want to know things such... |
[
{
"msg_contents": "Thanks for the response. I was pretty sure it couldn't be done the way I\nwanted to but felt I would ask anyway.\n\nThanks again,\nDuane\n\n-----Original Message-----\nFrom: Mike Nolan [mailto:nolan@gw.tssi.com]\nSent: Tuesday, June 01, 2004 3:04 PM\nTo: DLee@mail.maricopa.gov\nCc: pgsql-gen... |
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{
"msg_contents": "Hi All,\n\nI think it would actually be interesting to see the performance of the Cygwin version for these same benchmarks, then we've covered all ways to run PostgreSQL on Windows systems. (I expect though that performance of Cygwin-PostgreSQL will improve considerably when an updated versio... |
[
{
"msg_contents": "Folks,\n\nI've been testing varying SPINS_PER_DELAY in a client's installation of \nPostgreSQL against a copy of a production database, to test varying this \nstatistic as a way of fixing the issue. \n\nIt does not seem to work.\n\nI've tested all of the following graduated levels:\n\n100 (... |
[
{
"msg_contents": "Shachar Shemesh wrote:\n> Greg Stark wrote:\n> \n> >That said, I'm curious why the emulated servers performed better than\nthe\n> >Native Windows port. My first thought is that they probably aren't\n> syncing\n> >every write to disk so effectively they're defeating the fsyncs,\nallowing\n> th... |
[
{
"msg_contents": "Hello all,\n\n I have an import function that I have been working on for some time now, and \nit performed well up until recently. It is doing a lot, and because the \nqueries are not cached, I am not sure if that is what the problem is. If a \nfunction takes a while, does it lock any of t... |
[
{
"msg_contents": "Is there any crossover in performance with sibling inherited tables? \n\nFor Ex. \n\nif I have a parent table called : people\n\nA child of 'people' called: Adults\n\tand\nA child of 'people' called: Kids\n\nDoes the work I do to Adults, namely copies, huge updates and such ever affect \nthe... |
[
{
"msg_contents": "This is a very general question but what is the largest linux box anyone\nhas run PostgreSQL on and what kind of concurrent transactions per\nsecond have you seen? \n\n \n\nWe have a client who has huge bursts of activity, coinciding with high\nrated TV appearances, meaning hundreds of thousa... |
[
{
"msg_contents": "Hi!\n\nI am having a bit of problem with the plan that the planner produces.\n\nFirst a little info:\n\nOS: Linux Debian\nVersion: PostgreSQL 7.4.2 on i686-pc-linux-gnu, compiled by GCC gcc GCC) \n3.3.3 (Debian 20040401)\nCPU: AMD Athlon XP 2000+\nMemory: 1GB\nDisk: 4 SCSI-3 UW 10000rpm in RA... |
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{
"msg_contents": "Hi!\n\n> > Does that mean only the xlog, or also the clog? As far as I understand, the\n> > clog contains some meta-information on the xlog, so presumably it is\n> > flushed to disc synchronously together with the xlog? That would mean that\n> > they each need a separate disk to prevent one d... |
[
{
"msg_contents": "I have two instances of a production application that uses Postgres 7.2,\ndeployed in two different data centers for about the last 6 months. The\nsizes, schemas, configurations, hardware, and access patterns of the two\ndatabases are nearly identical, but one consistently takes at least 5x\... |
[
{
"msg_contents": "Michael wrote:\n> I have two instances of a production application that uses Postgres\n7.2,\n> deployed in two different data centers for about the last 6 months.\nThe\n> sizes, schemas, configurations, hardware, and access patterns of the\ntwo\n> databases are nearly identical, but one consi... |
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{
"msg_contents": "Slight update:\n\nThanks for the replies; this is starting to make a little more sense...\n\nI've managed to track down the root of the problem to a single query on\na single table. I have a query that looks like this:\n select count(*) from members where group_id = ? and member_id >\n... |
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{
"msg_contents": "Agreed.\n\nWe originally created the indexes this way because we sometimes do\nsearches where one of the columns is constrained using =, and the other\nusing a range search, but it's not clear to me how much Postgres\nunderstands multi-column indexes. Will I get the gain I'd expect from a\n(... |
[
{
"msg_contents": "Hello,\n\nI'm using postgresql 7.4.2, and I have this view:\nslooze=# \\d userpictures2\n Vue �public.userpictures2�\n Colonne | Type | Modificateurs \n-------------+--------------------------+---------------\n pictureid | integer | \n rollid... |
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{
"msg_contents": "\nI've got a simple database (no indices, 6 columns) that I need\nto write data quickly into through JDBC connections from\nmultiple such connections simultaneously in a distributed\nenvironment. (This is going to be a message logging service\nfor software generated messages.)\n\nUsing a Pre... |
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{
"msg_contents": "Hello again,\n\nThis question is related to my previous one (Unused table of view, see\nhttp://archives.postgresql.org/pgsql-performance/2004-06/msg00043.php).\nFor the moment, I have queries where I join tables by hand. Since a\nfew tables are always joined together, I thought I could define... |
[
{
"msg_contents": "\nWhy is my name on a mail from Tom Lane ? Really, he knows a *lot* more than I and should get due credit.\n\nSeriously, is this the peformance remailer mangling something ?\n\nGreg Williamson\n(the real one)\n\n-----Original Message-----\nFrom:\tGregory S. Williamson\nSent:\tSun 6/6/2004 10:... |
[
{
"msg_contents": "Dear Gurus,\n\nPlease feel free to show me to the archives if my question has already been\nanswered.\n\nLast week I fumbled with CPU_TUPLE_COST and revealed that 4 out of 4 tested\nqueries improved by 10-60% if I changed it from 0.01 (default) to 0.40\n(ugh). Setting it higher did not bring ... |
[
{
"msg_contents": "Hi all,\n\nI've been dealing with a problem for the past two days\nwhere a certain sql statement works 2 out of 5 times, and\nthe other 3 times, it causes the machine (quad Xeon 2.8GHz\n+ 792543232 bytes mem, linux kernel 2.4.26-custom, pg ver 7.3.4)\nto slow down, and finally grind to a hal... |
[
{
"msg_contents": "Hi all,\n\nI am optimizing some code that does a lot of iterative selects and \ninserts within loops. Because of the exception handling limitations in \npostgres and with no ability to twiddle autocommit, just about every \noperation is standalone.\n\nover 5000 odd lines this gets very slow (... |
[
{
"msg_contents": "Hello,\n\n I have an instance where I have a series of pl/pgsql calls, that report stat \nresults to a common table. When other queries try to hit the stat table \n(with DML commands; SELECT, INSERT, UPDATE, DELETE etc.) they are forced to \nwait in a queue until the pl/pgsql has finished e... |
[
{
"msg_contents": "Right now, I am having trouble getting the planner to optimize queries\nin the form of \n\nselect t.key, t.field from t a\n where \n (\n select count(*) from t b\n where b.field > a.field\n ) = k\n\nThe subplan (either index or seq. scan) executes once for each row in t... |
[
{
"msg_contents": "A production system has had a query recently degrade in performance. \nWhat once took < 1s now takes over 1s. I have tracked down the \nproblem to a working example.\n\nCompare http://rafb.net/paste/results/itZIx891.html\nwith http://rafb.net/paste/results/fbUTNF95.html\n\nThe first show... |
[
{
"msg_contents": "So I have a table with about 50 million entries in it, I have to do a keyword search.\n\n \n\nThe keyword search is done on the title of the entry. For example a entry could be \"This is a title string which could be searched\"\n\n \n\nI have tried a few ways to search but I get horrible sea... |
[
{
"msg_contents": "Hello list,\n\nServer is dual Xeon 2.4, 2GBRAM, Postgresql is running on partition:\n/dev/sda9 29G 8.9G 20G 31% /home2\n/dev/sda9 on /home2 type jfs (rw)\n\nVersion()\nPostgreSQL 7.4 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.2 \n20020903 (Red Hat Linux 8.0 3.2-7)\n\nI... |
[
{
"msg_contents": "I didn't really look that closely at the problem but have you thought of\ntrying:\n\nselect t.key, t.field from t a\n , (select count(*) as cntb from t b\n where b.field > a.field) as dmytbl\nwhere\ncntb = k\n\nThis is called an inline view or sometimes a nested table. You would b... |
[
{
"msg_contents": "Dear All,\n\nI have a table with approximately 570k Rows.\n\n\n Table \"filter.rules\"\n Column | Type | Modifiers\n----------+------------------------+----------------------------------------\n rulename | character varying(16) | not null de... |
[
{
"msg_contents": "I am putting together new server to deal with huge burst loads of\ntraffic. I have been reading up on performance recommendations on the\nsite and am interested to try a battery backed up ram disks for the wal\nbuffer. I would like to hear about types and brands of ram disk you have\ntried o... |
[
{
"msg_contents": "I'm having a performance issue that I just can't resolve and its very,\nvery curious. Thought someone here might be able to shed some light on\nthe subject.\n\nI'm using Postgres 7.4.2 on Red Hat 9. I have a table with 763,809 rows\nin it defined as follows ...\n\nksedb=# \\d nrgfeature\n ... |
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{
"msg_contents": "L.S.\n\nCould anybody explain why the planner is doing what it is doing?\n\nWhat could I do to make it easier to choose a better plan?\n\n\n\n*********\nSummary\n*********\nOn a freshly vacuum/analysed pair of tables with 7389 and 64333 records, this:\n\nselect id from location where id not i... |
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{
"msg_contents": "Vivek,\r\n \r\nWas there anything specific that helped you decide on a RAID-5 and not a RAID-10?\r\n \r\nI have my DBs on RAID10, and would soon be moving them on FC drives, and i am considering RAID-10.\r\n \r\nThanks,\r\nAnjan\r\n\r\n\t-----Original Message----- \r\n\tFrom: Josh Berkus [mai... |
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{
"msg_contents": "I have an application which logs interactions on a regular basis. The interaction details (their types, etc) are held in one table (tblitem) and the 'hits' are held in tbltotal.\n\nI have written a function to get the total 'hits' during a period and need to collect together the information ... |
[
{
"msg_contents": "I'm running postgrSQL 7.2 on a linux Red Hat 8.0 box with 2GB of RAM \nWhen I boot-up the system , this is the TOP situation:\n\n11:59am up 4 min, 1 user, load average: 0.37, 0.26, 0.11\n\n77 processes: 74 sleeping, 3 running, 0 zombie, 0 stopped\n\nCPU states: 0.3% user, 0.7% system, 0... |
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{
"msg_contents": "Thanks for your advice!\n\nAs I immagine the system released dinamically the shared memory .... the\nproblem is that\nwhen , after vacuum, users runs my application (ERP) and the system swap on\ndisk so the global performance\ndecrease very fast until the system is so slow that I need to rebo... |
[
{
"msg_contents": "I am batch inserting insert statements into a database with fsync = on.\nMy single disk system is on a 10k drive...even though I am inside a\ntransaction there is at least 1 file sync per row insert. \n\nIs this normal? On my hardware, which is pretty quick, I am limited to\nabout 50 insert... |
[
{
"msg_contents": "Rod Taylor wrote:\n> On Fri, 2004-06-11 at 14:40, Merlin Moncure wrote:\n> > I am batch inserting insert statements into a database with fsync =\non.\n> > My single disk system is on a 10k drive...even though I am inside a\n> > transaction there is at least 1 file sync per row insert.\n> \n> ... |
[
{
"msg_contents": "\nTom Lane wrote:\n> \"Merlin Moncure\" <merlin.moncure@rcsonline.com> writes:\n> > I am batch inserting insert statements into a database with fsync =\non.\n> > My single disk system is on a 10k drive...even though I am inside a\n> > transaction there is at least 1 file sync per row insert.\... |
[
{
"msg_contents": "Hello,\n\nConsider the following query:\n\nselect t1field1, avg(t2fieild2)\nfrom t1, t2\nwhere t1.field1 = t2.field2\ngroup by t1field1\n\nThat works fine. But I'd really like to see more fields of t1 in this\nquery, however I can't add them into the select because they're not\npart of the GR... |
[
{
"msg_contents": "Hello....\n\nI would like to know the performance of pg_fetch_array. Cosider the code:\n\n$query = \"select * from foo\";\n$result = pg_query( $db, $query );\n\nwhile ($row = pg_fetch_array($result))\n{\n $a = $row[\"a\"];\n $b = $row[\"b\"];\n $c = $row[\"c\"];\n $d = $row[\"d\"];\n... |
[
{
"msg_contents": "Hello all,\n\n I have a PostgreSQL instance running on a Dell Poweredge 6450. 4 700Mhz \nprocessors, 6 GB of Ram, 2GB Backside, 60GB Raid 10 Server. Today, it \ncrashed hard. At the command line (BASH), all I could get was 'bus fault' . \nAfter rebooting, we were unable to mount the part... |
[
{
"msg_contents": "Just as a point of reference, my situation is very much like the one in this \nthread:\n\nhttp://archive.netbsd.se/?list=pgsql-admin&a=2004-02&mid=50891\n\nThanks again.\n\n- Marcus\n",
"msg_date": "Mon, 14 Jun 2004 22:41:10 -0500",
"msg_from": "Marcus Whitney <marcus@coldfeetcreative... |
[
{
"msg_contents": "Hi All,\n\nIm testing my postgres 7.3.2 db on redhat 9.0 using osdb 0.16. I couldnot find any docuementation for interpreting the results obtained. Im doing multiuser (10 users) test. I've two different con figurations for postgresql.conf. In one it takes 44 mins to finish while in other it ... |
[
{
"msg_contents": "Hi all,\n\nI noticed the following. Given two tables, just simply articles and their \npackages:\n\n\tarticle(id int)\n\tpackage( id int, article_id int, amount)\n\nWhen taking the minimum package for articles given some constraint on the \narticle table\n\n\tselect \n\t\tarticle.id, \n\t\tp_... |
[
{
"msg_contents": "Hello all,\n\nI have a rather large table (~20 GB) of network logs taken over the period\nof a month and stored under postgres 7.3. I'm trying to create an indexing\nscheme so that I can do a query with a \"where time > foo and time < bar\"\nand get the results without too much waiting. With ... |
[
{
"msg_contents": "I've known about this tool for a while, but it seems many people do not \nknow of its existence and I think it would be useful to a lot of people \nwho have a hard time reading explain analyze output. (And even those \nwho can read them without blinking.. when you get deep in join hell it \ng... |
[
{
"msg_contents": "Hi,\nI currently have a mysql server running with a database of around 800\ngb. The problem is that the server is old (500 MHz Pentium III with 512\nMB RAM) and I want to change this to a new server and convert the\nexisting database to Postgresql on Debian (I assume that Postgresql\noffers ... |
[
{
"msg_contents": "> Was that 15% before or after updating from CVS?\n> \n> The more I think about the looping aspect the less I like it, so I'd\n> prefer not to pursue making the unlock change for real. But if it's\n> really a 15% win then maybe we need to...\n> \n> \t\t\tregards, tom lane\n\nAfter. So far, ... |
[
{
"msg_contents": "\n\n\n\nPg: 7.4.2\nRedHat 7.3\nRam: 8gig\n\nI have 6 million row table that I vacuum full analyze each night. The time\nseems to be streching out further and further as I add more rows. I read\nthe archives and Josh's annotated pg.conf guide that setting the FSM higher\nmight help. Curren... |
[
{
"msg_contents": "I'm trying to migrate an application from an Oracle\nbackend to PostgreSQL and have a performance question.\n\nThe hardware for the database is the same, a SunFire\nv120, 2x73GB U2W SCSI disks, 1GB RAM, 650MHz US-IIe\nCPU. Running Solaris 8.\n\nThe table in question has 541741 rows. Under Or... |
[
{
"msg_contents": "Hi ,\nI have similare problem and found that the problem is by pg sort.\nIt is extremly slow by me.\n\nAlso in my case I tryed to migrate one db from oracle to pg .\n\nTo solve this problem I dinamicaly set sort_mem to some big value.\nIn this case the sort is working into RAM and is relative... |
[
{
"msg_contents": "Hi everyone .\n\n \n\nHow much memory should I give to the kernel and postgresql\n\n \n\nI have 1G of memory and 120G of HD\n\n \n\nShared Buffers = ?\n\nVacuum Mem = ?\n\nSHMAX = ?\n\n \n\nSorry I have so many question .I am a newbie :-(\n\n \n\nI have 30G of data \n\nAt least 30 simultaneus... |
[
{
"msg_contents": "> Try increasing sort_mem temporarily, and see if that\n> makes a difference:\n> SET sort_mem = 64000;\n> EXPLAIN ANALYSE ...\n\nI did this (actualy 65536) and got the following:\npvcsdb=# explain analyze select distinct version from\nvers where version is not null;\n ... |
[
{
"msg_contents": "Hi,\n\nI am trying install the postgresql-7.4.3 simple installation. I did ./configure command at the postgresql directory source. While the configuring proccess I receiving the follow message:\n\nchecking for tar... /bin/tar\nchecking for strip... strip\nchecking whether it is possible to st... |
[
{
"msg_contents": "On Fri, 2004-06-18 at 19:51 -0700, Patrick Hatcher wrote:\n> \n> Thanks!\n> \n> My effective_cache_size = 625000\n> \n> I thought that having the shared_buffers above 2k or 3k didn't gain\n> any performance and may in fact degrade it?\n\nHi Patrick,\n\n\nQuoting from:\nhttp://www.varlena.co... |
[
{
"msg_contents": "-----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\nWe're looking for an alternative to fiber-channel disk arrays for mass\nstorage. One of the ideas that we're exploring would involve having the\ncluster on an NFS mounted filesystem. Another technology we're looking\nat is the Linux NBD (Netwo... |
[
{
"msg_contents": "Hi, I am trying to make a cluster out of any database, postgresql or mysql or any other free database. I have looked at openmosix patched with the migshm patch for shared memory support and it seems that neither work fully. Postgresql in particular uses \"shared memory but not the system se... |
[
{
"msg_contents": "Sounds like an issue I have experienced in Oracle as well. If you can\nyou might want consider breaking out your database into oltp (on line\ntransaction processing) and data warehouse db. You run you any reports\nyou can nightly into a set of warehouse tables and save your daytime\ncpus for ... |
[
{
"msg_contents": "The pg_resetxlog was run as root. It caused ownership problems of\npg_control and xlog files.\nNow we have no access to the data now through psql. The data is still\nthere under /var/lib/pgsql/data/base/17347 (PWFPM_DEV DB name). But\nthere is no reference to 36 of our tables in pg_class. ... |
[
{
"msg_contents": ">>>>> \"Matthieu\" == Matthieu Compin <matthieu.compin@parinux.org> writes:\n\n[...]\n\n >> mais je r�it�re ma proposition de m'occuper de la partie qui a\n >> pos� probl�me cette fois-ci, c'est � dire la prise de contact\n >> avec les diff�rentes personnes qui pourraient �tr... |
[
{
"msg_contents": "Bill wrote:\n> Ok, so maybe someone on this group will have a better idea. We have a\n> database of financial information, and this has literally millions of\n> entries. I have installed indicies, but for the rather\ncomputationally\n> demanding processes we like to use, like a select query... |
[
{
"msg_contents": "Tom I see you from past emails that you reference using -i -f with pg_filedump. I have tried this, but do not know what I am looking at. What would be the the transaction id? What parameter am I supposed to pass to find it?\n\n\n**************************************************************... |
[
{
"msg_contents": ">>>>> \"Laurent\" == Laurent Rathle <laurent@parinux.org> writes:\n\n Laurent> Le mardi 22 Juin 2004 19:59, Giancarlo a �crit�:\n >> 1ere r�gle: il n'y a pas de CVS chez Parinux 2eme r�gle: il n'y a\n >> pas de CVS chez Parinux, et... 3eme r�gle: il n'y a pas de CVS\n >> chez P... |
[
{
"msg_contents": "I determined the largest was 12,293,162 and set it to \npg_resetxlog -x 15000000 /var/lib/pgsql/data\n\nI am now able to see all the data.\n\nI actually checked the log for the previous successfull startup before it the pg_control file was reset and it reported \nJun 22 11:55:44 pascal postgr... |
[
{
"msg_contents": "Tom, thank you for your help.\nI increased 000E to 81920 and the databse is working now.\nWe are using RHAS 3.0 and it does have /dev/zero.\n\nDan.\n\n-----Original Message-----\nFrom: Tom Lane [mailto:tgl@sss.pgh.pa.us]\nSent: Thursday, June 24, 2004 12:34 PM\nTo: Shea,Dan [CIS]\nCc: pgsql-p... |
[
{
"msg_contents": "I'm trying to make a (qua-technical, qua-business) case for switching from\nMS SQL, and one of the types of query that really doesn't sit well with MS\nSQL2K is:\n\n-- All fields integers or equivalent.\n-- Table T(k, x: nonkey fields...)\n-- Table U(k, a, z: m) -- for each value of (k) a ... |
[
{
"msg_contents": "Hi all,\n\nI was running Postgres 7.3 and it was running at about 15% with my\napplication. On Postgres 7.4 on another box, it was running at 100%...\nMy settings are default on both boxes I think.\n\nThere are only about 20 inserts per second, which is really low. \nAnyone have any ideas as ... |
[
{
"msg_contents": "\nHi!\n\nI'd like to know if there is a way to see what queries are running\nwithin a certain postgres instance and how much resources (cpu/memory)\netc. they are using. Right now it's impossible to see what is happening\nwithin postgres when it's binaries are using 100% CPU.\n\nIn Sybase the... |
[
{
"msg_contents": "Hi,\n\nI have one performance issue... and realy have no idea what's going on...\nWhen I set enable_seqscan to 0, query2 runs the same way...\n\nupload => 60667 entities\nuploadfield => 506316 entities\n\nQuery1:\nselect count(*) from Upload NATURAL JOIN UploadField Where Upload.ShopID ... |
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