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Remove redundant error handling code from routers

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The routers no longer need to track the number of errors each DCB
receives. This is now done by the protocol modules.

The type of the DCB no longer needs to be checked in the handleError
implementation as the function is only called when a backend DCB fails.
This commit is contained in:
Markus Mäkelä
2017-03-06 11:44:19 +02:00
parent 29ece502f5
commit f18a40ce73
6 changed files with 129 additions and 202 deletions
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16
server/modules/routing/schemarouter/schemarouter.c
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@ -3557,33 +3557,19 @@ static void handleError(MXS_ROUTER* instance,
mxs_error_action_t action,
bool* succp)
{
ss_dassert(problem_dcb->dcb_role == DCB_ROLE_BACKEND_HANDLER);
MXS_SESSION* session;
ROUTER_INSTANCE* inst = (ROUTER_INSTANCE *)instance;
ROUTER_CLIENT_SES* rses = (ROUTER_CLIENT_SES *)router_session;
CHK_DCB(problem_dcb);
/** Don't handle same error twice on same DCB */
if (problem_dcb->dcb_errhandle_called)
{
/** we optimistically assume that previous call succeed */
*succp = true;
return;
}
else
{
problem_dcb->dcb_errhandle_called = true;
}
session = problem_dcb->session;
if (session == NULL || rses == NULL)
{
*succp = false;
}
else if (DCB_ROLE_CLIENT_HANDLER == problem_dcb->dcb_role)
{
*succp = false;
}
else
{
CHK_SESSION(session);