Patrick Liu created SPARK-8790:
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Summary: BlockManager.reregister cause OOM
Key: SPARK-8790
URL: https://issues.apache.org/jira/browse/SPARK-8790
Project: Spark
Issue Type: Bug
Components: Spark Core
Reporter: Patrick Liu
We run SparkSQL 1.2.1 on Yarn.
A SQL consists of 100 tasks, most them finish in < 10s, but only 1 lasts for
16m.
The webUI shows that the executor has running GC for 15m until OOM.
The log shows that the executor first try to connect to master to report
broadcast value, however the network is not available, so the executor connot
contact master. Then the executor lost connection with Master.
Then the master require the executor to reregister. When executor are
reporAllBlocks to master, the network is still not so stable, so sometimes
time-out.
Finally, the executor OOM.
Please take a look.
Attached is the detailed log.
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