[pgpool-general: 3087] Fwd: question about insert_lock

[Sean Hogan]

Hi,

Does anyone have a comment on this?

Thanks,
Sean


-------- Original Message --------
Subject: 	question about insert_lock
Date: 	Thu, 17 Jul 2014 13:36:13 -0230
From: 	Sean Hogan <sean at compusult.net>
To: 	pgpool-general at pgpool.net <pgpool-general at pgpool.net>



Hi,

I'm a little confused by the documentation of the insert_lock 
configuration property at 
http://www.pgpool.net/docs/latest/pgpool-en.html#replication_mode 
<http://www.pgpool.net/docs/latest/pgpool-en.html>. Specifically, I'm 
trying to determine if the default value (false) is also the recommended 
value.  I have created the insert_lock table and currently have 
insert_lock set to 'on'.  Is that the recommended thing for pgpool-II 
3.3.3 in native replication mode against PostgreSQL 9.2.7?

(The reason: I'm still seeing sporadic, unexplained node degeneration, 
where pgpool-II detects a mismatch in the number of affected tuples.  
The applications run fine for a while, sometimes days, then suddenly it 
happens.  Most often it's an update or delete on a Quartz table.  I'd 
like to eliminate sequence number mismatch as a reason for the failure.)

Thanks,
Sean


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