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Posted to dev@mahout.apache.org by "Dmitriy Lyubimov (JIRA)" <ji...@apache.org> on 2011/09/21 20:11:09 UTC
[jira] [Created] (MAHOUT-816) Power iterations -q=2 directory
mess-up
Power iterations -q=2 directory mess-up
---------------------------------------
Key: MAHOUT-816
URL: https://issues.apache.org/jira/browse/MAHOUT-816
Project: Mahout
Issue Type: Bug
Affects Versions: 0.6
Reporter: Dmitriy Lyubimov
Assignee: Dmitriy Lyubimov
Fix For: 0.6
Not sure it this is related, but sounds similar. I can't run more than one power iteration, ie q=2 produces
11/09/21 11:25:46 INFO mapred.LocalJobRunner: reduce > reduce
11/09/21 11:25:46 INFO mapred.Task: Task 'attempt_local_0004_r_000000_0' done.
11/09/21 11:25:50 INFO mapred.JobClient: Cleaning up the staging area file:/tmp/hadoop-nathanhalko/mapred/staging/nathanhalko-200181280/.staging/job_local_0005
Exception in thread "main" org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory temp/ABt-job-1 already exists
at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:134)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:830)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:791)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:791)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:465)
at org.apache.mahout.math.hadoop.stochasticsvd.ABtJob.run(ABtJob.java:454)
at org.apache.mahout.math.hadoop.stochasticsvd.SSVDSolver.run(SSVDSolver.java:312)
at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.run(SSVDCli.java:118)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.main(SSVDCli.java:163)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:188)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
for q=0,1 everything works fine. I am running with --overwrite and I rm -rf the temp dir before running.
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[jira] [Updated] (MAHOUT-816) Power iterations -q=2 directory
mess-up
Posted by "Dmitriy Lyubimov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitriy Lyubimov updated MAHOUT-816:
------------------------------------
Status: Patch Available (was: In Progress)
> Power iterations -q=2 directory mess-up
> ---------------------------------------
>
> Key: MAHOUT-816
> URL: https://issues.apache.org/jira/browse/MAHOUT-816
> Project: Mahout
> Issue Type: Bug
> Affects Versions: 0.6
> Reporter: Dmitriy Lyubimov
> Assignee: Dmitriy Lyubimov
> Fix For: 0.6
>
> Attachments: MAHOUT-816.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Not sure it this is related, but sounds similar. I can't run more than one power iteration, ie q=2 produces
> 11/09/21 11:25:46 INFO mapred.LocalJobRunner: reduce > reduce
> 11/09/21 11:25:46 INFO mapred.Task: Task 'attempt_local_0004_r_000000_0' done.
> 11/09/21 11:25:50 INFO mapred.JobClient: Cleaning up the staging area file:/tmp/hadoop-nathanhalko/mapred/staging/nathanhalko-200181280/.staging/job_local_0005
> Exception in thread "main" org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory temp/ABt-job-1 already exists
> at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:134)
> at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:830)
> at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:791)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
> at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:791)
> at org.apache.hadoop.mapreduce.Job.submit(Job.java:465)
> at org.apache.mahout.math.hadoop.stochasticsvd.ABtJob.run(ABtJob.java:454)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDSolver.run(SSVDSolver.java:312)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.run(SSVDCli.java:118)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.main(SSVDCli.java:163)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:188)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
> for q=0,1 everything works fine. I am running with --overwrite and I rm -rf the temp dir before running.
--
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[jira] [Commented] (MAHOUT-816) Power iterations -q=2 directory
mess-up
Posted by "Dmitriy Lyubimov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13109764#comment-13109764 ]
Dmitriy Lyubimov commented on MAHOUT-816:
-----------------------------------------
The fix attached.
Also added test for q=2.
also available on github at https://github.com/dlyubimov/mahout-commits/tree/MAHOUT-816
> Power iterations -q=2 directory mess-up
> ---------------------------------------
>
> Key: MAHOUT-816
> URL: https://issues.apache.org/jira/browse/MAHOUT-816
> Project: Mahout
> Issue Type: Bug
> Affects Versions: 0.6
> Reporter: Dmitriy Lyubimov
> Assignee: Dmitriy Lyubimov
> Fix For: 0.6
>
> Attachments: MAHOUT-816.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Not sure it this is related, but sounds similar. I can't run more than one power iteration, ie q=2 produces
> 11/09/21 11:25:46 INFO mapred.LocalJobRunner: reduce > reduce
> 11/09/21 11:25:46 INFO mapred.Task: Task 'attempt_local_0004_r_000000_0' done.
> 11/09/21 11:25:50 INFO mapred.JobClient: Cleaning up the staging area file:/tmp/hadoop-nathanhalko/mapred/staging/nathanhalko-200181280/.staging/job_local_0005
> Exception in thread "main" org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory temp/ABt-job-1 already exists
> at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:134)
> at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:830)
> at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:791)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
> at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:791)
> at org.apache.hadoop.mapreduce.Job.submit(Job.java:465)
> at org.apache.mahout.math.hadoop.stochasticsvd.ABtJob.run(ABtJob.java:454)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDSolver.run(SSVDSolver.java:312)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.run(SSVDCli.java:118)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.main(SSVDCli.java:163)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:188)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
> for q=0,1 everything works fine. I am running with --overwrite and I rm -rf the temp dir before running.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (MAHOUT-816) Power iterations -q=2 directory
mess-up
Posted by "Dmitriy Lyubimov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitriy Lyubimov updated MAHOUT-816:
------------------------------------
Attachment: MAHOUT-816.patch
The fix attached.
Also added test for q=2.
> Power iterations -q=2 directory mess-up
> ---------------------------------------
>
> Key: MAHOUT-816
> URL: https://issues.apache.org/jira/browse/MAHOUT-816
> Project: Mahout
> Issue Type: Bug
> Affects Versions: 0.6
> Reporter: Dmitriy Lyubimov
> Assignee: Dmitriy Lyubimov
> Fix For: 0.6
>
> Attachments: MAHOUT-816.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Not sure it this is related, but sounds similar. I can't run more than one power iteration, ie q=2 produces
> 11/09/21 11:25:46 INFO mapred.LocalJobRunner: reduce > reduce
> 11/09/21 11:25:46 INFO mapred.Task: Task 'attempt_local_0004_r_000000_0' done.
> 11/09/21 11:25:50 INFO mapred.JobClient: Cleaning up the staging area file:/tmp/hadoop-nathanhalko/mapred/staging/nathanhalko-200181280/.staging/job_local_0005
> Exception in thread "main" org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory temp/ABt-job-1 already exists
> at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:134)
> at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:830)
> at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:791)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
> at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:791)
> at org.apache.hadoop.mapreduce.Job.submit(Job.java:465)
> at org.apache.mahout.math.hadoop.stochasticsvd.ABtJob.run(ABtJob.java:454)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDSolver.run(SSVDSolver.java:312)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.run(SSVDCli.java:118)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.main(SSVDCli.java:163)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:188)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
> for q=0,1 everything works fine. I am running with --overwrite and I rm -rf the temp dir before running.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Work started] (MAHOUT-816) Power iterations -q=2 directory
mess-up
Posted by "Dmitriy Lyubimov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on MAHOUT-816 started by Dmitriy Lyubimov.
> Power iterations -q=2 directory mess-up
> ---------------------------------------
>
> Key: MAHOUT-816
> URL: https://issues.apache.org/jira/browse/MAHOUT-816
> Project: Mahout
> Issue Type: Bug
> Affects Versions: 0.6
> Reporter: Dmitriy Lyubimov
> Assignee: Dmitriy Lyubimov
> Fix For: 0.6
>
> Attachments: MAHOUT-816.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Not sure it this is related, but sounds similar. I can't run more than one power iteration, ie q=2 produces
> 11/09/21 11:25:46 INFO mapred.LocalJobRunner: reduce > reduce
> 11/09/21 11:25:46 INFO mapred.Task: Task 'attempt_local_0004_r_000000_0' done.
> 11/09/21 11:25:50 INFO mapred.JobClient: Cleaning up the staging area file:/tmp/hadoop-nathanhalko/mapred/staging/nathanhalko-200181280/.staging/job_local_0005
> Exception in thread "main" org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory temp/ABt-job-1 already exists
> at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:134)
> at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:830)
> at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:791)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
> at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:791)
> at org.apache.hadoop.mapreduce.Job.submit(Job.java:465)
> at org.apache.mahout.math.hadoop.stochasticsvd.ABtJob.run(ABtJob.java:454)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDSolver.run(SSVDSolver.java:312)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.run(SSVDCli.java:118)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.main(SSVDCli.java:163)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:188)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
> for q=0,1 everything works fine. I am running with --overwrite and I rm -rf the temp dir before running.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Updated] (MAHOUT-816) Power iterations -q=2 directory
mess-up
Posted by "Dmitriy Lyubimov (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitriy Lyubimov updated MAHOUT-816:
------------------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
> Power iterations -q=2 directory mess-up
> ---------------------------------------
>
> Key: MAHOUT-816
> URL: https://issues.apache.org/jira/browse/MAHOUT-816
> Project: Mahout
> Issue Type: Bug
> Affects Versions: 0.6
> Reporter: Dmitriy Lyubimov
> Assignee: Dmitriy Lyubimov
> Fix For: 0.6
>
> Attachments: MAHOUT-816.patch
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Not sure it this is related, but sounds similar. I can't run more than one power iteration, ie q=2 produces
> 11/09/21 11:25:46 INFO mapred.LocalJobRunner: reduce > reduce
> 11/09/21 11:25:46 INFO mapred.Task: Task 'attempt_local_0004_r_000000_0' done.
> 11/09/21 11:25:50 INFO mapred.JobClient: Cleaning up the staging area file:/tmp/hadoop-nathanhalko/mapred/staging/nathanhalko-200181280/.staging/job_local_0005
> Exception in thread "main" org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory temp/ABt-job-1 already exists
> at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:134)
> at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:830)
> at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:791)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
> at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:791)
> at org.apache.hadoop.mapreduce.Job.submit(Job.java:465)
> at org.apache.mahout.math.hadoop.stochasticsvd.ABtJob.run(ABtJob.java:454)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDSolver.run(SSVDSolver.java:312)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.run(SSVDCli.java:118)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> at org.apache.mahout.math.hadoop.stochasticsvd.SSVDCli.main(SSVDCli.java:163)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:188)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
> for q=0,1 everything works fine. I am running with --overwrite and I rm -rf the temp dir before running.
--
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For more information on JIRA, see: http://www.atlassian.com/software/jira