omkar vinit joshi created YARN-467:
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Summary: Jobs fail during resource localization when directories
in file cache reaches to unix directory limit for public cache
Key: YARN-467
URL: https://issues.apache.org/jira/browse/YARN-467
Project: Hadoop YARN
Issue Type: Bug
Components: nodemanager
Affects Versions: 2.0.0-alpha, 3.0.0
Reporter: omkar vinit joshi
Assignee: omkar vinit joshi
If we have multiple jobs which uses distributed cache with small size of files,
the directory limit reaches before reaching the cache size and fails to create
any directories in file cache (PUBLIC). The jobs start failing with the below
exception.
java.io.IOException: mkdir of /tmp/nm-local-dir/filecache/3901886847734194975
failed
at org.apache.hadoop.fs.FileSystem.primitiveMkdir(FileSystem.java:909)
at
org.apache.hadoop.fs.DelegateToFileSystem.mkdir(DelegateToFileSystem.java:143)
at org.apache.hadoop.fs.FilterFs.mkdir(FilterFs.java:189)
at org.apache.hadoop.fs.FileContext$4.next(FileContext.java:706)
at org.apache.hadoop.fs.FileContext$4.next(FileContext.java:703)
at
org.apache.hadoop.fs.FileContext$FSLinkResolver.resolve(FileContext.java:2325)
at org.apache.hadoop.fs.FileContext.mkdir(FileContext.java:703)
at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:147)
at org.apache.hadoop.yarn.util.FSDownload.call(FSDownload.java:49)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
we need to have a mechanism where in we can create directory hierarchy and
limit number of files per directory.
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