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MDEV-21718 Assertion in wsrep::client_state::before_command().

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An assertion

  `server_state_.rollback_mode() == wsrep::server_state::rm_async`

fired in before_command() when
- thread-handling was set to pool-of-threads and
- a BF abort happened between client session calls to
  wait_rollback_complete_and_acquire_ownership() and before_command().

This commit introduces a test case to reproduce the crash and
updates wsrep-lib submodule to fixed version.
This commit is contained in:
Teemu Ollakka
2020-07-23 23:05:47 +03:00
committed by Jan Lindström
parent 134a6a8d2f
commit 1e2a4ed7ed
5 changed files with 55 additions and 1 deletions
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1
sql/sql_parse.cc
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@ -1280,6 +1280,7 @@ bool do_command(THD *thd)
command= fetch_command(thd, packet);
#ifdef WITH_WSREP
DEBUG_SYNC(thd, "wsrep_before_before_command");
/*
Aborted by background rollbacker thread.
Handle error here and jump straight to out