A scheduler job get hung up causing critical problems

Hi Experts,

We are on Oracle 11.2.0.2 on Linux. We have some work that is programmed to operate during the night as 1 am etc. These jobs copy data from some of the main tables in the archive tables that are in the same OLTP schema. We use the PARALLEL suspicion in this copy sqls. Now most of the time work ends somewhere between 1-2 minutes. But yesterday, the work has been suspended for more than 5 hours. It caused failure because the tables got locked and we have stopped the work manually to resolve the failure. This questions happened twice so far - once in a less critical environment and once in production. Today, the same work done in 20 seconds. This could be due to a bug in the Scheduler?


I will be grateful for your contributions.

OrauserN

CWA will not help with the lock, but it will show you what other processes were going on this time. Perhaps one of them was slow or block your trade. Verification of the AWR report if you see anyhting that was not supposed to work or is unusually long.

Unfortunately, if you do not have a logging process in the procedure called by your job Scheduler, it will be difficult to get more information about the problem.

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