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https://issues.apache.org/jira/browse/YARN-467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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omkar vinit joshi updated YARN-467:
-----------------------------------
Attachment: yarn-467-20130322.patch
Fixing directory limit problem for public cache. Creating a separate
HierarchicalDirectory structure to manage hierarchical directories.
> 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: 3.0.0, 2.0.0-alpha
> Reporter: omkar vinit joshi
> Assignee: omkar vinit joshi
> Attachments: yarn-467-20130322.patch
>
>
> 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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