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Making FLUSH TABLES WITH READ LOCK killable while it's waiting for running commits to finish. Normally this step is not long but it's still nice to be killable

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(especially in case of bug like BUG#6732 "FLUSH TABLES WITH READ LOCK + COMMIT makes next FLUSH...LOCK hang forever").


sql/lock.cc:
  making FLUSH TABLES WITH READ LOCK killable while it's waiting for running commits to finish
sql/mysql_priv.h:
  prototype change
sql/sql_parse.cc:
  now it's possible that make_global_read_lock_block_commit fails (killed)
This commit is contained in:
unknown
2004-12-02 23:02:38 +01:00
parent d967118ff6
commit 75fa4c00ef
6 changed files with 82 additions and 7 deletions
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7
sql/sql_parse.cc
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@ -5746,7 +5746,12 @@ bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables,
return 1;
result=close_cached_tables(thd,(options & REFRESH_FAST) ? 0 : 1,
tables);
make_global_read_lock_block_commit(thd);
if (make_global_read_lock_block_commit(thd))
{
/* Don't leave things in a half-locked state */
unlock_global_read_lock(thd);
return 1;
}
}
else
result=close_cached_tables(thd,(options & REFRESH_FAST) ? 0 : 1, tables);