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Thread: Postgres on Linux Cluster!

Postgres on Linux Cluster!

From
"Gurpreet Sachdeva"
Date:

I have recently transfered a big database on my master node of a 4 node openSSI Cluster... The system is working fine but sometimes, I get following errors:

http://192.168.1.100/cgi-bin/search.py
  File "/usr/lib/python2.2/site-packages/pyPgSQL/PgSQL.py", line 3067, in execute, referer: http://192.168.1.100/cgi-bin/search.py
    self.conn.conn.query('ROLLBACK WORK'), referer: http://192.168.1.100/cgi-bin/search.py
libpq.ProgrammingError: no connection to the server, referer: http://192.168.1.100/cgi-bin/search.py
, referer: http://192.168.1.100/cgi-bin/search.py

This error comes while insertion of data takes place...
Is Postgres successfull on Cluster??? Will that give me performance enhancement in any way??? Please help...

--
Thanks and Regards,
GSS

Re: Postgres on Linux Cluster!

From
Richard Huxton
Date:
Gurpreet Sachdeva wrote:
> I have recently transfered a big database on my master node of a 4
> node openSSI Cluster... The system is working fine but sometimes, I
> get following errors:
>
> http://192.168.1.100/cgi-bin/search.py File
> "/usr/lib/python2.2/site-packages/pyPgSQL/PgSQL.py", line 3067, in
> execute, referer: http://192.168.1.100/cgi-bin/search.py
> self.conn.conn.query('ROLLBACK WORK'), referer:
> http://192.168.1.100/cgi-bin/search.py libpq.ProgrammingError: no
> connection to the server, referer:
> http://192.168.1.100/cgi-bin/search.py , referer:
> http://192.168.1.100/cgi-bin/search.py

At a wild guess, this happens when a CGI process is migrated to another
node without migrating the accompanying connection (however you'd do that).

> This error comes while insertion of data takes place... Is Postgres
> successfull on Cluster??? Will that give me performance enhancement
> in any way??? Please help...

Probably not, and almost certainly not.

--
   Richard Huxton
   Archonet Ltd