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From "Ruilong Huo (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HAWQ-1722) Core dump due to lock is not released before reporting errors when exceeding MaxAORelSegFileStatus
Date Sun, 02 Jun 2019 04:00:00 GMT
Ruilong Huo created HAWQ-1722:
---------------------------------

             Summary: Core dump due to lock is not released before reporting errors when exceeding
MaxAORelSegFileStatus
                 Key: HAWQ-1722
                 URL: https://issues.apache.org/jira/browse/HAWQ-1722
             Project: Apache HAWQ
          Issue Type: Bug
            Reporter: Ruilong Huo
            Assignee: Radar Lei


since the lock is not released before reporting errors, it will leads to panic during transaction
abort since the lock will be acquired again. A RWLock is acquired twice in one process will
leads to panic.

There are two occurrences of this bug in this function, one for AO, one for parquet.
```
			if (id == NEXT_END_OF_LIST)
			{
				pfree(allfsinfoParquet);

				ereport(ERROR, (errmsg("cannot open more than %d "
				      "append-only table segment "
				      "files cocurrently",
				      MaxAORelSegFileStatus)));

				return false;
			}
```



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