Fetch failures and other related issues in Jetty 6.1.26
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Key: MAPREDUCE-2980
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2980
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: tasktracker
Affects Versions: 0.20.205.0, 0.23.0
Reporter: Todd Lipcon
Priority: Critical
Since upgrading Jetty from 6.1.14 to 6.1.26 we've had a ton of HTTP-related
issues, including:
- Much higher incidence of fetch failures
- A few strange file-descriptor related bugs (eg MAPREDUCE-2389)
- A few unexplained issues where long "fsck"s on the NameNode drop out halfway
through with a ClosedChannelException
Stress tests with 10000Map x 10000Reduce sleep jobs reliably reproduce fetch
failures at a rate of about 1 per million on a 25 node test cluster. These
problems are all new since the upgrade from 6.1.14.
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