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Add to or take from persistent pool only if server is running; add conditions to DCB close in read-write handleError to check backend reference was in use.

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This commit is contained in:
Martin Brampton
2015-09-17 12:53:59 +01:00
parent 583c9b62fe
commit 357c4bcae5
2 changed files with 18 additions and 5 deletions
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3
server/core/dcb.c
View File

@ -1881,6 +1881,7 @@ dcb_maybe_add_persistent(DCB *dcb)
&& strlen(dcb->user)
&& dcb->server
&& dcb->server->persistpoolmax
&& (dcb->server->status & SERVER_RUNNING)
&& !dcb->dcb_errhandle_called
&& !(dcb->flags & DCBF_HUNG)
&& (poolcount = dcb_persistent_clean_count(dcb, false)) < dcb->server->persistpoolmax)
@ -2815,6 +2816,8 @@ dcb_persistent_clean_count(DCB *dcb, bool cleanall)
if (cleanall
|| persistentdcb-> dcb_errhandle_called
|| count >= server->persistpoolmax
|| persistentdcb->server == NULL
|| !(persistentdcb->server->status & SERVER_RUNNING)
|| (time(NULL) - persistentdcb->persistentstart) > server->persistmaxtime)
{
/* Remove from persistent pool */

12
server/modules/routing/readwritesplit/readwritesplit.c
View File

@ -4875,9 +4875,11 @@ static void handleError (
bref = get_bref_from_dcb(rses, backend_dcb);
if (bref != NULL)
{
bool bref_was_in_use = BREF_IS_IN_USE(bref);
CHK_BACKEND_REF(bref);
bref_clear_state(bref, BREF_IN_USE);
bref_set_state(bref, BREF_CLOSED);
if (bref_was_in_use)
dcb_close(backend_dcb);
}
else
@ -4958,11 +4960,15 @@ static void handle_error_reply_client(
*/
if ((bref = get_bref_from_dcb(rses, backend_dcb)) != NULL)
{
bool bref_was_in_use = BREF_IS_IN_USE(bref);
CHK_BACKEND_REF(bref);
bref_clear_state(bref, BREF_IN_USE);
bref_set_state(bref, BREF_CLOSED);
if (bref_was_in_use)
{
dcb_close(backend_dcb);
}
}
if (sesstate == SESSION_STATE_ROUTER_READY)
{
@ -4998,6 +5004,7 @@ static bool handle_error_new_connection(
int max_slave_rlag;
backend_ref_t* bref;
bool succp;
bool bref_was_in_use;
myrses = *rses;
ss_dassert(SPINLOCK_IS_LOCKED(&myrses->rses_lock));
@ -5014,6 +5021,7 @@ static bool handle_error_new_connection(
goto return_succp;
}
CHK_BACKEND_REF(bref);
bref_was_in_use = BREF_IS_IN_USE(bref);
/**
* If query was sent through the bref and it is waiting for reply from
@ -5049,8 +5057,10 @@ static bool handle_error_new_connection(
DCB_REASON_NOT_RESPONDING,
&router_handle_state_switch,
(void *)bref);
if (bref_was_in_use)
{
dcb_close(backend_dcb);
}
router_nservers = router_get_servercount(inst);
max_nslaves = rses_get_max_slavecount(myrses, router_nservers);
max_slave_rlag = rses_get_max_replication_lag(myrses);