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Posted to dev@pig.apache.org by "Rohini Palaniswamy (JIRA)" <ji...@apache.org> on 2012/08/31 20:49:08 UTC
[jira] [Commented] (PIG-2791) Pig does not work with ViewFileSystem
[ https://issues.apache.org/jira/browse/PIG-2791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446243#comment-13446243 ]
Rohini Palaniswamy commented on PIG-2791:
-----------------------------------------
Daniel,
You have not committed the patch to trunk yet.
> Pig does not work with ViewFileSystem
> -------------------------------------
>
> Key: PIG-2791
> URL: https://issues.apache.org/jira/browse/PIG-2791
> Project: Pig
> Issue Type: Bug
> Components: grunt
> Affects Versions: 0.10.0
> Environment: Pig QE
> Reporter: patrick white
> Assignee: Rohini Palaniswamy
> Priority: Blocker
> Attachments: asf_test_notes.txt, FixMiniCluster-branch10-1.patch, FixMiniCluster-branch10.patch, PIG-2791-0.patch, PIG-2791-1.patch, PIG-2791-2.patch, PIG-2791-3-branch10.patch, PIG-2791-3-trunk.patch, PIG-2791-4-branch10.patch, PIG-2791-4-trunk.patch, PIG-2791-5-trunk.patch
>
>
> The Yahoo Pig QE team ran into a blocking issue when trying to test Client-Side Mount Tables, on a Federated cluster with two NNs, this blocks Pig Testing on Federation.
> Federation relies strongly on the use of CSMT with viewFS, QE found that in this configuration it is not possible to enter grunt shell because Pig makes a call to getDefaultReplication() on the fs, which is ambiguous over viewFS and causes core to throw a org.apache.hadoop.fs.viewfs.NotInMountpointException: "getDefaultReplication on empty path is invalid".
> This in turn cause Pig to exit with an internal error as follows:
> 2012-07-06 22:20:25,657 [main] INFO org.apache.pig.Main - Apache Pig version 0.10.1.0.1206081058 (r1348169) compiled Jun 08 2012, 17:58:42
> 2012-07-06 22:20:26,074 [main] WARN org.apache.hadoop.conf.Configuration - mapred.used.genericoptionsparser is deprecated. Instead, use mapreduce.client.genericoptionsparser.used
> 2012-07-06 22:20:26,076 [main] INFO org.apache.pig.backend.hadoop.executionengine.HExecutionEngine - Connecting to hadoop file system at: viewfs:///
> 2012-07-06 22:20:26,080 [main] WARN org.apache.hadoop.conf.Configuration - fs.default.name is deprecated. Instead, use fs.defaultFS
> 2012-07-06 22:20:26,522 [main] ERROR org.apache.pig.Main - ERROR 2999: Unexpected internal error. getDefaultReplication on empty path is invalid
> 2012-07-06 22:20:26,522 [main] WARN org.apache.pig.Main - There is no log file to write to.
> 2012-07-06 22:20:26,522 [main] ERROR org.apache.pig.Main - org.apache.hadoop.fs.viewfs.NotInMountpointException: getDefaultReplication on empty path is invalid
> at org.apache.hadoop.fs.viewfs.ViewFileSystem.getDefaultReplication(ViewFileSystem.java:482)
> at org.apache.pig.backend.hadoop.datastorage.HDataStorage.init(HDataStorage.java:77)
> at org.apache.pig.backend.hadoop.datastorage.HDataStorage.<init>(HDataStorage.java:58)
> at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.init(HExecutionEngine.java:205)
> at org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.init(HExecutionEngine.java:118)
> at org.apache.pig.impl.PigContext.connect(PigContext.java:208)
> at org.apache.pig.PigServer.<init>(PigServer.java:246)
> at org.apache.pig.PigServer.<init>(PigServer.java:231)
> at org.apache.pig.tools.grunt.Grunt.<init>(Grunt.java:47)
> at org.apache.pig.Main.run(Main.java:487)
> at org.apache.pig.Main.main(Main.java:111)
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