hcq/MaxScale
hcq/MaxScale
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backend connection counter was decreased in freeSession even for those backends which weren't connected. This resulted negative counts and affected on selection algorithm.

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This commit is contained in:
VilhoRaatikka 2014-05-10 22:21:30 +03:00
parent faa7b8de76
commit ffce479780
1 changed files with 7 additions and 2 deletions
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9
server/modules/routing/readwritesplit/readwritesplit.c
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@ -648,8 +648,7 @@ static void closeSession(
if (dcb != NULL)
{
CHK_DCB(dcb);
backend_ref[i].bref_dcb =
(DCB *)0xdeadbeef; /*< prevent new uses of DCB */
backend_ref[i].bref_dcb = NULL; /*< prevent new uses of DCB */
dcb->func.close(dcb);
}
}
@ -673,6 +672,11 @@ static void freeSession(
for (i=0; i<router_cli_ses->rses_nbackends; i++)
{
if (backend_ref[i].bref_dcb == NULL)
{
continue;
}
ss_dassert(backend_ref[i].bref_backend->backend_conn_count > 0);
atomic_add(&backend_ref[i].bref_backend->backend_conn_count, -1);
}
spinlock_acquire(&router->lock);
@ -1635,6 +1639,7 @@ static bool select_connect_backend_servers(
{
if (backend_ref[i].bref_dcb != NULL)
{
ss_dassert(backend_ref[i].bref_backend->backend_conn_count > 0);
/** disconnect opened connections */
backend_ref[i].bref_dcb->func.close(backend_ref[i].bref_dcb);
atomic_add(&backend_ref[i].bref_backend->backend_conn_count, -1);