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Applying InnoDB snashot 5.1-ss6129

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Detailed revision comments:

r6032 | vasil | 2009-10-01 15:55:49 +0300 (Thu, 01 Oct 2009) | 8 lines
branches/5.1:

Fix Bug#38996 Race condition in ANALYZE TABLE

by serializing ANALYZE TABLE inside InnoDB.

Approved by:	Heikki (rb://175)
This commit is contained in:
Sergey Vojtovich 2009-11-02 18:36:55 +04:00
parent ff25b8f7a1
commit 0b25d0877b
1 changed files with 9 additions and 0 deletions
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9
storage/innobase/handler/ha_innodb.cc
View file

@ -54,6 +54,7 @@ static ulong commit_threads = 0;
static pthread_mutex_t commit_threads_m;
static pthread_cond_t commit_cond;
static pthread_mutex_t commit_cond_m;
static pthread_mutex_t analyze_mutex;
static bool innodb_inited = 0;
/*
@ -1932,6 +1933,7 @@ innobase_init(
pthread_mutex_init(&prepare_commit_mutex, MY_MUTEX_INIT_FAST);
pthread_mutex_init(&commit_threads_m, MY_MUTEX_INIT_FAST);
pthread_mutex_init(&commit_cond_m, MY_MUTEX_INIT_FAST);
pthread_mutex_init(&analyze_mutex, MY_MUTEX_INIT_FAST);
pthread_cond_init(&commit_cond, NULL);
innodb_inited= 1;
@ -1971,6 +1973,7 @@ innobase_end(handlerton *hton, ha_panic_function type)
pthread_mutex_destroy(&prepare_commit_mutex);
pthread_mutex_destroy(&commit_threads_m);
pthread_mutex_destroy(&commit_cond_m);
pthread_mutex_destroy(&analyze_mutex);
pthread_cond_destroy(&commit_cond);
}
@ -6430,9 +6433,15 @@ ha_innobase::analyze(
THD* thd, /* in: connection thread handle */
HA_CHECK_OPT* check_opt) /* in: currently ignored */
{
/* Serialize ANALYZE TABLE inside InnoDB, see
Bug#38996 Race condition in ANALYZE TABLE */
pthread_mutex_lock(&analyze_mutex);
/* Simply call ::info() with all the flags */
info(HA_STATUS_TIME | HA_STATUS_CONST | HA_STATUS_VARIABLE);
pthread_mutex_unlock(&analyze_mutex);
return(0);
}