[YARN-467] Jobs fail during resource localization when public distributed-cache hits unix directory limits

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha, 3.0.0-alpha1
• Fix Version/s: 2.1.0-beta
• Component/s: nodemanager
• Hadoop Flags: Reviewed
• Assignee: Omkar Vinit Joshi
• Reporter: Omkar Vinit Joshi
• Created: 12/Mar/13 00:16
• Updated: 12/May/16 18:30
• Resolved: 03/Apr/13 05:02

Description

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.

Issue Links

• blocks: YARN-99 Jobs fail during resource localization when private distributed-cache hits unix directory limits
• blocks: YARN-112 Race in localization can cause containers to fail
• duplicates: YARN-527 Local filecache mkdir fails