Обсуждение: ExclusiveLock on PostgreSQL - Fabio Mendonça
Hi friends,
I'm Fabio Mendonça (Brazil) and I initiated a work with PostgreSQL, I work with Oracle , DB2 , Sybase and Informix , but PostgreSQL is a sweet experience.
In this moment I'm looking any help, because the articles that I've found not solve the problem.
The Cenario:
I 've a process with 600.000 rows, for insert on table "A" with 130 columns and I'm received the "Exclusivelock" error message, making lost some rows during transaction. The insert of transaction occurs on each 2 min. and for each 1 min, a second process read the table "A" (with Join Table "C" using PK ) to make a insert on a table ("B") . Well , I did think create a partitions on table "A", but I don't believe get a correcting in the problem ( "Exclusivelock" ).
I'm reading the your conversation about WAL performance and if I understood
, your sugestion was separed the WAL archives between fisical disks .
Please could you confirm this solution or exist another form to resolve the "Exclusivelock" ? .
I appreciate any sugestion.
Thanks .
(sorry my english, cause I'm student on language)
Fabio Mendonça.
System Analist
BRQ (CAIXA FEDERAL )
On Wed, Oct 28, 2015 at 5:59 PM, Fabio Oliveira De Mendonca
<fabiomedonca@brq.com> wrote:
> I 've a process with 600.000 rows, for insert on table "A" with 130 columns
> and I'm received the "Exclusivelock" error message, making lost some
> rows during transaction. The insert of transaction occurs on each 2 min.
> and for each 1 min, a second process read the table "A" (with Join Table "C"
> using PK ) to make a insert on a table ("B") . Well , I did think create
> a partitions on table "A", but I don't believe get a correcting in the
> problem ( "Exclusivelock" ).
This isn't really the right mailing list for this question.
You might find https://listas.postgresql.org.br/cgi-bin/mailman/listinfo/pgbr-geral
helpful, or you can ask at
http://www.postgresql.org/list/pgsql-general/
You should also read
https://wiki.postgresql.org/wiki/Guide_to_reporting_problems --
because this report does not contain enough information for someone to
answer your question. In particular, including the exact text of any
commands you executed and any error or other messages the system
generated would be helpful.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
Thanks Robert.
I read the material link and did help me to take a new decision
thank you.
att.
Fabio Mendonça
________________________________________
De: Robert Haas <robertmhaas@gmail.com>
Enviado: sexta-feira, 30 de outubro de 2015 07:49
Para: Fabio Oliveira De Mendonca
Cc: ktm@it.is.rice.edu; gsstark@mit.edu; pgsql-hackers@postgresql.org; fabio.mendonca.arq@gmail.com
Assunto: Re: [HACKERS] ExclusiveLock on PostgreSQL - Fabio Mendonça
On Wed, Oct 28, 2015 at 5:59 PM, Fabio Oliveira De Mendonca
<fabiomedonca@brq.com> wrote:
> I 've a process with 600.000 rows, for insert on table "A" with 130 columns
> and I'm received the "Exclusivelock" error message, making lost some
> rows during transaction. The insert of transaction occurs on each 2 min.
> and for each 1 min, a second process read the table "A" (with Join Table "C"
> using PK ) to make a insert on a table ("B") . Well , I did think create
> a partitions on table "A", but I don't believe get a correcting in the
> problem ( "Exclusivelock" ).
This isn't really the right mailing list for this question.
You might find https://listas.postgresql.org.br/cgi-bin/mailman/listinfo/pgbr-geral
helpful, or you can ask at
http://www.postgresql.org/list/pgsql-general/
You should also read
https://wiki.postgresql.org/wiki/Guide_to_reporting_problems --
because this report does not contain enough information for someone to
answer your question. In particular, including the exact text of any
commands you executed and any error or other messages the system
generated would be helpful.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company