Created by Sergei Glushchenko on 2013-06-24 and last modified on 2013-09-29
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402. By Sergei Glushchenko on 2013-09-29

This patch fixes multiple issues.
- assertion failure (pfs->m_idle || (state == PSI_SOCKET_STATE_IDLE)) in pfs.cc
PFS updates of current State of socket in threadpool has been improved.
* as comment in threadpool_common.cc states, there is a possibility for
more than one iteration of loop in threadpool_process_request to be done,
which is handled now. Cases when loop wasn't executed at all are also
- change in mysqld.cc is aimed to prevent race condition (concurrent changes
in THD and it's PFS structures) which caused SIGSEGV's on server shutdown.
- adding vio_cancel for socket and other VIO implementations allows to
handle kill idle transaction correctly. Similar change present in 5.5
branch Percona Server rev. 442.1.4.
- test case for bug #1201681

395. By Laurynas Biveinis on 2013-06-27

Null-merge lp:percona-server/5.5 revisions 542--544

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