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refcount leak warnings

From: Thomas Hallgren <thomas(at)tada(dot)se>
To: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Cc: Eric BOYER <Eric(dot)Boyer(at)insa-toulouse(dot)fr>
Subject: refcount leak warnings
Date: 2006-06-27 13:55:06
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
I have a PL/Java user that performs some lengthy operations. Eventually, 
he get warnings like:

WARNING: buffer refcount leak: [779] (rel=1663/16440/52989, blockNum=3, 
flags=0x27, refcount=1 2)

I traced this to the function PrintBufferLeakWarning. AFAICS, it's only 
called from the function ResourceOwnerReleaseInternal under the 
following comment:

* During a commit, there shouldn't be any remaining pins --- that
* would indicate failure to clean up the executor correctly --- so
* issue warnings.    In the abort case, just clean up quietly.

I have no idea where to go from here. What should I look for when trying 
to find the cause of such warnings?

Thomas Hallgren


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