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Posted to dev@gobblin.apache.org by "Hanghang Liu (Jira)" <ji...@apache.org> on 2021/04/20 20:37:00 UTC

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

Hanghang Liu created GOBBLIN-1432:
-------------------------------------

             Summary: 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


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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