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Posted to dev@tomcat.apache.org by bu...@apache.org on 2003/11/27 22:15:11 UTC
DO NOT REPLY [Bug 25060] New: -
Reloading context orphans currently open jndi datasource connections
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=25060
Reloading context orphans currently open jndi datasource connections
Summary: Reloading context orphans currently open jndi datasource
connections
Product: Tomcat 4
Version: 4.1.27
Platform: Other
OS/Version: Other
Status: NEW
Severity: Normal
Priority: Other
Component: Unknown
AssignedTo: tomcat-dev@jakarta.apache.org
ReportedBy: raz@chewies.net
I fiddled around with this a while and have determined to the best of my ability
that this is a real bug. I have a jndi datasource connected to a postgresql
server. I have two jndi resources (a reader and writer) so that later I can
implement a system with replication etc and deal with writes and reads to
different connections. To summarize, after using the system, there are two
connections to postgres that get reused -- one reader and writer. Under load,
this number increases and will slowly go back down. I usually end up with two
idle connections (one reader and one writer) left under no load. If you reload
the context where the datasource is at (it's a context specific datasource), the
number of connections will jump by two when used. Each reload produces 2 more
connections min until I restart the server. It appears that after a reload, the
'persisted connections' get abandoned / orphaned. Eventually, I hit my max
connections and cannot aquire any more and the system fails. I have tried the
abandond collection parameters and have added debug logging to my code to ensure
that I am indeed calling close on the connections I checkout, even on exceptions
and error cases. Under normal useage without reloads, no connection leakage
happens.
This is on a solaris 8 machine with the 4.1.27-hotfix-22096.tar.gz applied. Let
me know if more information is required. I have this in a development
environment and can let somone attach in jdb and hammer on the thing since it's
not a production system -- if that will help in getting a repro.
Wayne
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