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Only add tasks once in binlogrouter

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Adding the same task twice isn't allowed. The API of the housekeeper tasks
might have to be changed in a way that makes it possible for the caller to
know whether a task has been added.
This commit is contained in:
Markus Mäkelä
2019-03-26 09:13:44 +02:00
parent 0915487329
commit f8bc6b18fc
3 changed files with 16 additions and 10 deletions
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24
server/modules/routing/binlogrouter/blr_master.cc
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@ -1460,15 +1460,18 @@ static bool blr_check_last_master_event(void* inst)
if ((!master_check) || (master_state != BLRM_BINLOGDUMP))
{
/*
* Remove the task, it will be added again
* when master state is back to BLRM_BINLOGDUMP
* by blr_master_response()
*/
snprintf(task_name,
BLRM_TASK_NAME_LEN,
"%s heartbeat",
router->service->name());
if (router->heartbeat_task_active)
{
// Remove the task, it will be added again when master state is back to BLRM_BINLOGDUMP by
// blr_master_response()
snprintf(task_name,
BLRM_TASK_NAME_LEN,
"%s heartbeat",
router->service->name());
hktask_remove(task_name);
router->heartbeat_task_active = false;
}
rval = false;
}
@ -2842,8 +2845,9 @@ static void blr_start_master_registration(ROUTER_INSTANCE* router, GWBUF* buf)
/**
* Set heartbeat check task
*/
if (router->heartbeat > 0)
if (router->heartbeat > 0 && !router->heartbeat_task_active)
{
router->heartbeat_task_active = true;
char task_name[BLRM_TASK_NAME_LEN + 1] = "";
snprintf(task_name,
BLRM_TASK_NAME_LEN,