memory (probably related to sessions) leak
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Key: GERONIMO-3838
URL: https://issues.apache.org/jira/browse/GERONIMO-3838
Project: Geronimo
Issue Type: Bug
Security Level: public (Regular issues)
Components: Memory Leaks
Affects Versions: 2.0.2
Environment: tested with JDK 1.5 running on Windows XP and FreeBSD6.2
Reporter: Radim Kolar
Priority: Critical
There is memory leak and it can be repeated very easily, so it should be very
easy to catch
Install Geronimo and then run some kind of benchmarking software against its
admin UI login page, for example
program ab from Apache HTTP. This is realistic attack scenario, because lot of
denial of service attacks are doing this (requesting one page many times).
Watching memory used graph in admin console shows free memory slowly
decreasing. After all available memory is exhausted, application server stops
serving new requests and never restores ifself back to working state.
I think that it is caused by allocating sessions without limiting total number
of sessions to keep in memory and possibly to swap sessions out to file. There
needs to be user-configurable setting for preventing this, it would be nice to
add such setting to Admin console.
Its very important to get this bug fixed.
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