Steve Loughran created HADOOP-15679:
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Summary: ShutdownHookManager shutdown time needs to be
configurable & extended
Key: HADOOP-15679
URL: https://issues.apache.org/jira/browse/HADOOP-15679
Project: Hadoop Common
Issue Type: Bug
Components: util
Affects Versions: 3.0.0, 2.8.0
Reporter: Steve Loughran
Assignee: Steve Loughran
HADOOP-12950 added a timeout on shutdowns to avoid problems with hanging
shutdowns. But the timeout is too short for applications where a large flush of
data is needed on shutdown.
A key example of this is Spark apps which save their history to object stores,
where the file close() call triggers an upload of the final local cached block
of data (could be 32+MB), and then execute the final mutipart commit.
Proposed
# make the default sleep time 30s, not 10s
# make it configurable with a time duration property (with minimum time of 1s.?)
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