MySQL patches by Codership

race(s) between closing client connections and wsrep disconnect

Bug #552465 reported by Teemu Ollakka
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
MySQL patches by Codership
Fix Released
Medium
Teemu Ollakka
MySQL patches by Codership 0.7.4 "Garbo"
0.8
Fix Released
Medium
Teemu Ollakka
MySQL patches by Codership 0.8.1

Bug Description

These cases seem to produce race conditions in shutdown or conf change:

1) close_connections() is called before wsrep->disconnect() in shutdown (wsrep applier hangs)
2) wsrep_close_client_connections() is called from view handler in case of non-prim (rapid non-prim - prim transitions cause race between committing transactions and applier trying to close client connections)

Teemu Ollakka (teemu-ollakka)
Changed in codership-mysql:
assignee: nobody → Teemu Ollakka (teemu-ollakka)
importance: Undecided → Medium
milestone: none → 0.7.4
status: New → Confirmed
Teemu Ollakka (teemu-ollakka)
Changed in codership-mysql:
status: Confirmed → Fix Committed
Revision history for this message
Teemu Ollakka (teemu-ollakka) wrote :

reopening to fix remaining issues in wsrep_close_client_connections()

Changed in codership-mysql:
status: Fix Committed → In Progress
Teemu Ollakka (teemu-ollakka)
Changed in codership-mysql:
status: In Progress → Fix Committed
Seppo Jaakola (seppo-jaakola)
Changed in codership-mysql:
status: Fix Committed → Fix Released
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