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Posted to dev@tomcat.apache.org by bu...@apache.org on 2019/12/08 22:44:22 UTC
[Bug 63993] New: Fatal error EXCEPTION_ACCESS_VIOLATION are thrown
while the load test scenario includes multiple concurrent connections
https://bz.apache.org/bugzilla/show_bug.cgi?id=63993
Bug ID: 63993
Summary: Fatal error EXCEPTION_ACCESS_VIOLATION are thrown
while the load test scenario includes multiple
concurrent connections
Product: Tomcat 7
Version: 7.0.94
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: michael.mishalov@nice.com
Target Milestone: ---
Created attachment 36911
--> https://bz.apache.org/bugzilla/attachment.cgi?id=36911&action=edit
generated thread dump while due EXCEPTION_ACCESS_VIOLATION error
Fatal error EXCEPTION_ACCESS_VIOLATION are thrown while the load test scenario
include 1K concurrent connections
While running performance test of our application we see random spikes of CPU
utilisation and increases on Open AM active sessions without any increase in
load.
After certain time Tomcat crashes with EXCEPTION_ACCESS_VIOLATION exception.
We tested the same scenario with different connectors (APR (native) and BIO) on
Windows Server 2012R2 and on Windows Server 2016 and also filtered out all
application specific scenarios to isolate the root course of the issue.
During our investigation we also found two issues reported previously that may
be closely related to this one as well, however it seems that version we are
using already have native library that contains this fix.
https://bz.apache.org/bugzilla/show_bug.cgi?id=56313
https://bz.apache.org/bugzilla/show_bug.cgi?id=57653
Attached is the thread dump that includes EXCEPTION_ACCESS_VIOLATION error.
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[Bug 63993] Fatal error EXCEPTION_ACCESS_VIOLATION are thrown while
the load test scenario includes multiple concurrent connections
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63993
Michael Mishalov <mi...@nice.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
OS| |Windows Server 2012 R2
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[Bug 63993] Fatal error EXCEPTION_ACCESS_VIOLATION are thrown while
the load test scenario includes multiple concurrent connections
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63993
Mark Thomas <ma...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
OS| |All
--- Comment #1 from Mark Thomas <ma...@apache.org> ---
Please re-test with the latest 7.0.x release (7.0.99 as I type this). The APR
poller has been significantly re-factored since 7.0.94.
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[Bug 63993] Fatal error EXCEPTION_ACCESS_VIOLATION are thrown while
the load test scenario includes multiple concurrent connections
Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=63993
Mark Thomas <ma...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEEDINFO |RESOLVED
Resolution|--- |WONTFIX
--- Comment #2 from Mark Thomas <ma...@apache.org> ---
No updates for 2 months.
I am going to assume that the changes in the Poller between 7.0.94 and 7.0.99
addressed this issue.
If you still see this issue with the latest 7.0.x release then please feel to
re-open this issue. You will need to provide the steps necessary to reproduce
the issue from a clean install of the latest 7.0.x release available at that
time.
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