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https://issues.apache.org/jira/browse/PHOENIX-4141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16151078#comment-16151078
 ] 

Samarth Jain commented on PHOENIX-4141:
---------------------------------------

Or this error:
{code}
java.lang.Exception: java.lang.IllegalArgumentException: Filesystems for 
restore directory and HBase root directory should be the same
        at 
org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462)
        at 
org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:522)
Caused by: java.lang.IllegalArgumentException: Filesystems for restore 
directory and HBase root directory should be the same
        at 
org.apache.hadoop.hbase.snapshot.RestoreSnapshotHelper.copySnapshotForScanner(RestoreSnapshotHelper.java:716)
        at 
org.apache.phoenix.iterate.TableSnapshotResultIterator.init(TableSnapshotResultIterator.java:77)
        at 
org.apache.phoenix.iterate.TableSnapshotResultIterator.<init>(TableSnapshotResultIterator.java:73)
        at 
org.apache.phoenix.mapreduce.PhoenixRecordReader.initialize(PhoenixRecordReader.java:126)
        at 
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.initialize(MapTask.java:548)
        at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:786)
        at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
        at 
org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243)
        at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
{code}

It's possible this may effect the actual map reduce job and not just in tests. 

> Fix flapping TableSnapshotReadsMapReduceIT
> ------------------------------------------
>
>                 Key: PHOENIX-4141
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4141
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Samarth Jain
>            Assignee: Samarth Jain
>             Fix For: 4.12.0
>
>         Attachments: PHOENIX-4141.patch
>
>




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