Tina Shan created MAPREDUCE-7327:
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Summary: Job.waitForCompletion function can sleep most for 596
hours when jobclient.completion.poll.interval is misconfigured , causing the
job to hang
Key: MAPREDUCE-7327
URL: https://issues.apache.org/jira/browse/MAPREDUCE-7327
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: client
Affects Versions: 3.3.0
Reporter: Tina Shan
The loop terminates depending on a configurable value and there is little
sanity checking on this value. When jobclient.completion.poll.interval is
misconfigured to INT_MAX, it can cause the loop to sleep at most for 596 hours.
The thread would get stuck and never return to the user even if the job
completes. We suggest adding a cap value or a warning message.
{code:java}
public boolean waitForCompletion(boolean verbose
) throws IOException, InterruptedException,
ClassNotFoundException {
...
while (!isComplete()) {
try {
Thread.sleep(completionPollIntervalMillis);
} catch (InterruptedException ie) {
}
...
}
{code}
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