Susan Hinrichs created TS-3536:
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Summary: Fixing Memory leak in POST processing
Key: TS-3536
URL: https://issues.apache.org/jira/browse/TS-3536
Project: Traffic Server
Issue Type: Bug
Components: HTTP
Reporter: Susan Hinrichs
Opening a new bug to track concerns over fixes in TS-2497 causing a memory leak
in certain edge cases of POST processing. The original fix in TS-2497 removed
a tunnel.deallocate_buffers(). But since tunnel.reset() is called before later
tunnel.deallocate_buffers() are called, the original buffer pointers are
overwritten with 0's and never deallocated.
[~shaunmcginnity] pointed out the leak in one case (read available <= 0), and
the deallocate_buffer() was added in that path.
[~ffcai] identified the other path as a source of a leak for us in production.
He added back the deallocate_buffer() in the read avail > 0 case, and the
memory leak went away. It has been running in production for that property for
over a month without stability issues.
I'm opening this as a new bug rather than resurrecting the other bug. Many
other things have changed since January 2014 when TS-2497 was originally
identified. Neither [~briang] nor [~jacksontj] could provide a reproduction
case. I'll set up the fix as a pull request to give folks time to review
before committing.
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