[jira] [Work logged] (GOBBLIN-1432) JVM hangs on flushing events after OOM

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GOBBLIN-1432?focusedWorklogId=587476&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-587476 ]

ASF GitHub Bot logged work on GOBBLIN-1432:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 22/Apr/21 19:57
            Start Date: 22/Apr/21 19:57
    Worklog Time Spent: 10m 
      Work Description: hanghangliu opened a new pull request #3270:
URL: https://github.com/apache/gobblin/pull/3270


   Dear Gobblin maintainers,
   
   Please accept this PR. I understand that it will not be reviewed until I have checked off all the steps below!
   
   
   ### JIRA
   - [ ] My PR addresses the following [Gobblin JIRA](https://issues.apache.org/jira/browse/GOBBLIN/) issues and references them in the PR title. For example, "[GOBBLIN-1432] My Gobblin PR"
       - https://issues.apache.org/jira/browse/GOBBLIN-1432
   
   
   ### Description
   - [ ] Here are some details about my PR, including screenshots (if applicable):
   A hang was observed for ingestion flows after an OOM.
   This appears to be due to the kafka pusher flush() call not returning.
   Add run with timeout for kafka8 flush when close to fix the issue.
   
   ### Tests
   - [ ] My PR adds the following unit tests __OR__ does not need testing for this extremely good reason:
   
   
   ### Commits
   - [ ] My commits all reference JIRA issues in their subject lines, and I have squashed multiple commits if they address the same issue. In addition, my commits follow the guidelines from "[How to write a good git commit message](http://chris.beams.io/posts/git-commit/)":
       1. Subject is separated from body by a blank line
       2. Subject is limited to 50 characters
       3. Subject does not end with a period
       4. Subject uses the imperative mood ("add", not "adding")
       5. Body wraps at 72 characters
       6. Body explains "what" and "why", not "how"
   
   


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 587476)
    Remaining Estimate: 0h
            Time Spent: 10m

> JVM hangs on flushing events after OOM
> --------------------------------------
>
>                 Key: GOBBLIN-1432
>                 URL: https://issues.apache.org/jira/browse/GOBBLIN-1432
>             Project: Apache Gobblin
>          Issue Type: Bug
>          Components: gobblin-kafka, gobblin-metrics
>            Reporter: Hanghang Liu
>            Assignee: Shirshanka Das
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> A hang was observed for ingestion flows after an OOM.
> This appears to be due to the kafka pusher flush() call not returning.
> Hanging stack.
> {code:java}
>         at org.apache.kafka.clients.producer.internals.FutureRecordMetadata.get(FutureRecordMetadata.java:29)         at org.apache.gobblin.metrics.kafka.KafkaProducerPusher.flush(KafkaProducerPusher.java:125)         at org.apache.gobblin.metrics.kafka.KafkaProducerPusher.close(KafkaProducerPusher.java:137)         at com.google.common.io.Closer.close(Closer.java:214)         at org.apache.gobblin.metrics.reporter.ConfiguredScheduledReporter.close(ConfiguredScheduledReporter.java:245)         at com.google.common.io.Closer.close(Closer.java:214)         at org.apache.gobblin.metrics.MetricContext.close(MetricContext.java:553)         at org.apache.gobblin.metrics.RootMetricContext$1.run(RootMetricContext.java:194){code}
>  
> Shutdown hook call
> {code:java}
> "DestroyJavaVM" #308 prio=5 os_prio=0 tid=0x00007fb55c01a800 nid=0x5d51 in Object.wait() [0x00007fb563f5b000]    java.lang.Thread.State: WAITING (on object monitor)         at java.lang.Object.wait(Native Method)         - waiting on <0x00000000e036cf30> (a org.apache.gobblin.metrics.RootMetricContext$1)         at java.lang.Thread.join(Thread.java:1252)         - locked <0x00000000e036cf30> (a org.apache.gobblin.metrics.RootMetricContext$1)         at java.lang.Thread.join(Thread.java:1326)         at java.lang.ApplicationShutdownHooks.runHooks(ApplicationShutdownHooks.java:107)         at java.lang.ApplicationShutdownHooks$1.run(ApplicationShutdownHooks.java:46){code}



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