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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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9
mysql-test/r/flush_read_lock_kill.result Normal file
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drop table if exists t1;
create table t1 (kill_id int);
insert into t1 values(connection_id());
flush tables with read lock;
select ((@id := kill_id) - kill_id) from t1;
((@id := kill_id) - kill_id)
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kill connection @id;
drop table t1;