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Posted to dev@hawq.apache.org by "Stanley Sung (JIRA)" <ji...@apache.org> on 2017/03/08 23:41:37 UTC

[jira] [Created] (HAWQ-1384) runaway_detector_activation_percent = 100 doesn't disable runaway_detector

Stanley Sung created HAWQ-1384:
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             Summary: runaway_detector_activation_percent = 100 doesn't disable runaway_detector
                 Key: HAWQ-1384
                 URL: https://issues.apache.org/jira/browse/HAWQ-1384
             Project: Apache HAWQ
          Issue Type: Bug
          Components: Query Execution
            Reporter: Stanley Sung
            Assignee: Lei Chang


When setting runaway_detector_activation_percent to 100, we still see queries canceled by runaway_detector like the following:
ERROR:  Canceling query because of high VMEM usage. Used: 64MB, available 81856MB, red zone: -16MB (runaway_cleaner.c:152)  (seg9 xxxxx.xxxx.xxxx:40000 pid=646507) (dispatcher.c:1801)

Note that redzone is negative and used mem is way less than available. 




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