Disable utility mode in singlenode deployment #123
Description
Utilty mode is not necessary in singlenode deployment.
But if we disable directly, many of the isolaiton tests will be broken. "1U:" grammar require connection to be set in utility mode.
Can be fixed by this.
void
assign_gp_role(const char *newval, void *extra)
{
/*
* Since postgres don't have utility mode, singlenode mode should not support
* utility mode either.
*/
if (Gp_role == GP_ROLE_SINGLENODE && string_to_role(newval) == GP_ROLE_UTILITY)
{
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("utility mode is not supported in ")));
}
Gp_role = string_to_role(newval);
if (IS_UTILITY_OR_SINGLENODE(Gp_role) && MyProc != NULL)
MyProc->mppIsWriter = false;
}Singlenode role should not be used to connect to any of the cluster node either. Can be taken into consideration along with this issue.