Обсуждение: pgpool
Please could someone give me an idea of what pgpool is, and where I can research it?
I have run a search on postgresql.org and found many references, but they don't explain what it is, and it doesn't appear in the documentation index of the v8.1 manuals.
http://pgpool.projects.postgresql.org/ from the site: "What is pgpool? pgpool is a connection pool server for PostgreSQL. pgpool runs between PostgreSQL's clients(front ends) and servers(back ends). A PostgreSQL client can connect to pgpool as if it were a standard PostgreSQL server..." G.- On 7/6/06, adey <adey11@gmail.com> wrote: > > Please could someone give me an idea of what pgpool is, and where I can > research it? > I have run a search on postgresql.org and found many references, but they > don't explain what it is, and it doesn't appear in the documentation index > of the v8.1 manuals. -- Guido Barosio ----------------------- http://www.globant.com guido.barosio@globant.com
Hello List I am using postgresql 7.4.7 in a voip production setup. I have been using pg_dump -Fc for regular backing up. Since yesterday i am getting the following error for the command: root# pg_dump -h 'localhost' voipdb -t voipcall -Fc -f voipcall.bak The error is : pg_dump: ERROR: invalid memory alloc request size 4294967293 pg_dump: SQL command to dump the contents of table "voipcall" failed: PQendcopy() failed. pg_dump: Error message from server: ERROR: invalid memory alloc request size 4294967293 pg_dump: The command was: COPY public.voipcall (id, accountid, .........., prefix) TO stdout; However when i tried to Vacuum analyze the same table its fine and no errors. Also the SQL access to the same table runs fine without any errors. Only the pg_dump is failing for this particular table. Can anyone suggest a method to fix this? Thanks in advance Manjula __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
Hi, If you are trying to take a table dump try using this pd_dump databasename -t tablename if you are taking in the same server done mention as localhost just switch user as postgress and give the above command mentioned. manjula hettiarachchi wrote: >Hello List > >I am using postgresql 7.4.7 in a voip production >setup. >I have been using pg_dump -Fc for regular backing up. >Since yesterday i am getting the following error for >the command: > >root# pg_dump -h 'localhost' voipdb -t voipcall -Fc -f >voipcall.bak > >The error is : > >pg_dump: ERROR: invalid memory alloc request size >4294967293 >pg_dump: SQL command to dump the contents of table >"voipcall" failed: PQendcopy() failed. >pg_dump: Error message from server: ERROR: invalid >memory alloc request size 4294967293 >pg_dump: The command was: COPY public.voipcall (id, >accountid, .........., prefix) TO stdout; > >However when i tried to Vacuum analyze the same table >its fine and no errors. Also the SQL access to the >same table runs fine without any errors. > >Only the pg_dump is failing for this particular table. > >Can anyone suggest a method to fix this? > >Thanks in advance > >Manjula > > > >__________________________________________________ >Do You Yahoo!? >Tired of spam? Yahoo! Mail has the best spam protection around >http://mail.yahoo.com > >---------------------------(end of broadcast)--------------------------- >TIP 2: Don't 'kill -9' the postmaster > > > -- Thanks & Regards, Dilipkumar DBA Support ********** DISCLAIMER ********** Information contained and transmitted by this E-MAIL is proprietary to Sify Limited and is intended for use only by the individual or entity to which it is addressed, and may contain information that is privileged, confidential or exempt from disclosure under applicable law. If this is a forwarded message, the content of this E-MAIL may not have been sent with the authority of the Company. If you are not the intended recipient, an agent of the intended recipient or a person responsible for delivering the information to the named recipient, you are notified that any use, distribution, transmission, printing, copying or dissemination of this information in any way or in any manner is strictly prohibited. If you have received this communication in error, please delete this mail & notify us immediately at admin@sifycorp.com Watch India vs. England LIVE, Hot videos and more only on Sify Max! Click Here. www.sifymax.com Get to see what's happening in your favourite City on Bangalore Live! www.bangalorelive.in
After a long battle with technology, adey11@gmail.com (adey), an earthling, wrote: > Please could someone give me an idea of what pgpool is, and where I can research it? > > I have run a search on postgresql.org and found many references, but > they don't explain what it is, and it doesn't appear in the > documentation index of the v8.1 manuals. It's not officially part of the database, so no, it's not in the database documentation. <http://pgpool.projects.postgresql.org/> It's a connection pool server implemented in C... The notion is that you run your database on (say) port 5432, and then put pgpool in between, on port 4432. pgpool opens up some fixed number of connections to the database, keeping them open, and your application connects to port 4432, as if it were a direct connection to the database. pgpool then manages the connections, basically keeping them open irrespective of how your application handles connections. This can be a big help to performance if your application is pretty loose about opening and closing connections whenever it likes. -- (reverse (concatenate 'string "moc.liamg" "@" "enworbbc")) http://linuxdatabases.info/info/lsf.html The real problem with the the year 2000 is that there are too many zero bits and that adversely affects the global bit density. -- Boyd Roberts <boyd@france3.fr>