Hadoop HDFS
  1. Hadoop HDFS
  2. HDFS-854

Datanode should scan devices in parallel to generate block report

    Details

    • Type: Improvement Improvement
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 0.22.0
    • Fix Version/s: 0.21.0
    • Component/s: datanode
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      A Datanode should scan its disk devices in parallel so that the time to generate a block report is reduced. This will reduce the startup time of a cluster.
      A datanode has 12 disk (each of 1 TB) to store HDFS blocks. There is a total of 150K blocks on these 12 disks. It takes the datanode upto 20 minutes to scan these devices to generate the first block report.

      1. HDFS-854-2.patch
        10 kB
        Dmytro Molkov
      2. HDFS-854.patch.1
        9 kB
        Dmytro Molkov
      3. HDFS-854.patch
        8 kB
        Dmytro Molkov

        Issue Links

          Activity

          Hide
          Zlatin Balevsky added a comment -

          If it is not possible to move the i/o operations listFiles() and length() outside of the lock, it would make sense to set a flag that a block report is in progress so that the rest of the datanode doesn't just hang. My 2c.

          Show
          Zlatin Balevsky added a comment - If it is not possible to move the i/o operations listFiles() and length() outside of the lock, it would make sense to set a flag that a block report is in progress so that the rest of the datanode doesn't just hang. My 2c.
          Hide
          Lohit Vijayarenu added a comment -

          Or probably keep last added/deleted blocks in memory and send block report and doing disk scan once in a while?

          Show
          Lohit Vijayarenu added a comment - Or probably keep last added/deleted blocks in memory and send block report and doing disk scan once in a while?
          Hide
          Dmytro Molkov added a comment -

          Please have a look at the patch.

          The problem we are trying to solve here is generating the first block report quicker after restart by scanning the volumes in parallel. This way instead of scanning 12 TB of data sequentially we scan 12 chunks of 1 TB in parallel. Since there is a lot of latency in IO we have an improvement of a few times in the time to generate the block report.

          The test for this is just running the directory scanner test twice: with parallel execution and without it.

          Show
          Dmytro Molkov added a comment - Please have a look at the patch. The problem we are trying to solve here is generating the first block report quicker after restart by scanning the volumes in parallel. This way instead of scanning 12 TB of data sequentially we scan 12 chunks of 1 TB in parallel. Since there is a lot of latency in IO we have an improvement of a few times in the time to generate the block report. The test for this is just running the directory scanner test twice: with parallel execution and without it.
          Hide
          dhruba borthakur added a comment -

          > Or probably keep last added/deleted blocks in memory and send block report and doing disk scan once in a while?

          Lohit:This is already part of HDFS trunk, I think Suresh has earlier improved this to generate block reports from memory.

          This patch improves the startup time of the cluster when the entire cluster is restarted. In this case, the datanodes are started newly and have to scan the disk to generate the first block report. The faster we can generate the block report, the shorter the time for the NN to exit safemode!

          Show
          dhruba borthakur added a comment - > Or probably keep last added/deleted blocks in memory and send block report and doing disk scan once in a while? Lohit:This is already part of HDFS trunk, I think Suresh has earlier improved this to generate block reports from memory. This patch improves the startup time of the cluster when the entire cluster is restarted. In this case, the datanodes are started newly and have to scan the disk to generate the first block report. The faster we can generate the block report, the shorter the time for the NN to exit safemode!
          Hide
          Dmytro Molkov added a comment -

          Submitting it for Hudson to run the tests. Can someone review the patch in the meanwhile?

          Show
          Dmytro Molkov added a comment - Submitting it for Hudson to run the tests. Can someone review the patch in the meanwhile?
          Hide
          Hadoop QA added a comment -

          -1 overall. Here are the results of testing the latest attachment
          http://issues.apache.org/jira/secure/attachment/12438481/HDFS-854.patch
          against trunk revision 921697.

          +1 @author. The patch does not contain any @author tags.

          +1 tests included. The patch appears to include 3 new or modified tests.

          +1 javadoc. The javadoc tool did not generate any warning messages.

          +1 javac. The applied patch does not increase the total number of javac compiler warnings.

          +1 findbugs. The patch does not introduce any new Findbugs warnings.

          +1 release audit. The applied patch does not increase the total number of release audit warnings.

          -1 core tests. The patch failed core unit tests.

          -1 contrib tests. The patch failed contrib unit tests.

          Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/268/testReport/
          Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/268/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
          Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/268/artifact/trunk/build/test/checkstyle-errors.html
          Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/268/console

          This message is automatically generated.

          Show
          Hadoop QA added a comment - -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12438481/HDFS-854.patch against trunk revision 921697. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 3 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. -1 core tests. The patch failed core unit tests. -1 contrib tests. The patch failed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/268/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/268/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/268/artifact/trunk/build/test/checkstyle-errors.html Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/268/console This message is automatically generated.
          Hide
          Dmytro Molkov added a comment -

          Resubmitting the same patch, because I could not connect it with the failures in the tests.

          Show
          Dmytro Molkov added a comment - Resubmitting the same patch, because I could not connect it with the failures in the tests.
          Hide
          Hadoop QA added a comment -

          -1 overall. Here are the results of testing the latest attachment
          http://issues.apache.org/jira/secure/attachment/12438481/HDFS-854.patch
          against trunk revision 921697.

          +1 @author. The patch does not contain any @author tags.

          +1 tests included. The patch appears to include 3 new or modified tests.

          +1 javadoc. The javadoc tool did not generate any warning messages.

          +1 javac. The applied patch does not increase the total number of javac compiler warnings.

          +1 findbugs. The patch does not introduce any new Findbugs warnings.

          +1 release audit. The applied patch does not increase the total number of release audit warnings.

          -1 core tests. The patch failed core unit tests.

          -1 contrib tests. The patch failed contrib unit tests.

          Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/269/testReport/
          Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/269/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
          Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/269/artifact/trunk/build/test/checkstyle-errors.html
          Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/269/console

          This message is automatically generated.

          Show
          Hadoop QA added a comment - -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12438481/HDFS-854.patch against trunk revision 921697. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 3 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. -1 core tests. The patch failed core unit tests. -1 contrib tests. The patch failed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/269/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/269/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/269/artifact/trunk/build/test/checkstyle-errors.html Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/269/console This message is automatically generated.
          Hide
          Dmytro Molkov added a comment -

          Found a small problem with it

          Show
          Dmytro Molkov added a comment - Found a small problem with it
          Hide
          Dmytro Molkov added a comment -

          Added a shutdown to DirectoryScanner to close the thread pool on exit.

          Show
          Dmytro Molkov added a comment - Added a shutdown to DirectoryScanner to close the thread pool on exit.
          Hide
          Hadoop QA added a comment -

          -1 overall. Here are the results of testing the latest attachment
          http://issues.apache.org/jira/secure/attachment/12438985/HDFS-854.patch.1
          against trunk revision 923467.

          +1 @author. The patch does not contain any @author tags.

          +1 tests included. The patch appears to include 3 new or modified tests.

          +1 javadoc. The javadoc tool did not generate any warning messages.

          +1 javac. The applied patch does not increase the total number of javac compiler warnings.

          +1 findbugs. The patch does not introduce any new Findbugs warnings.

          +1 release audit. The applied patch does not increase the total number of release audit warnings.

          -1 core tests. The patch failed core unit tests.

          -1 contrib tests. The patch failed contrib unit tests.

          Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/270/testReport/
          Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/270/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
          Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/270/artifact/trunk/build/test/checkstyle-errors.html
          Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/270/console

          This message is automatically generated.

          Show
          Hadoop QA added a comment - -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12438985/HDFS-854.patch.1 against trunk revision 923467. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 3 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. -1 core tests. The patch failed core unit tests. -1 contrib tests. The patch failed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/270/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/270/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/270/artifact/trunk/build/test/checkstyle-errors.html Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/270/console This message is automatically generated.
          Hide
          Dmytro Molkov added a comment -

          The test failure org.apache.hadoop.hdfs.TestReadWhileWriting.pipeline_02_03 doesn't seem to have anything to do with this patch.
          Can anyone review this one so that it can get commited?

          Show
          Dmytro Molkov added a comment - The test failure org.apache.hadoop.hdfs.TestReadWhileWriting.pipeline_02_03 doesn't seem to have anything to do with this patch. Can anyone review this one so that it can get commited?
          Hide
          Rodrigo Schmidt added a comment -

          Reviewed the patch and it looks good.
          +1

          Show
          Rodrigo Schmidt added a comment - Reviewed the patch and it looks good. +1
          Hide
          Dmytro Molkov added a comment -

          Going to submit it once again to see if the tests pass.

          Show
          Dmytro Molkov added a comment - Going to submit it once again to see if the tests pass.
          Hide
          Jakob Homan added a comment -

          The test failure is not related in all likelihood. The patch overall looks good.
          One change: dfs.datanode.directoryscan.threads should be defined and referenced via DFSConfigKeys.java.
          One question: Is it appropriate to just log the error when compiling block reports (line 125 in patch), or should more drastic action be taken?
          One request: Naming patches with a final number really confuses all my editors, how about HDFS-854-1.patch (although numbering patches is greatly appreciated!)

          Show
          Jakob Homan added a comment - The test failure is not related in all likelihood. The patch overall looks good. One change: dfs.datanode.directoryscan.threads should be defined and referenced via DFSConfigKeys.java. One question: Is it appropriate to just log the error when compiling block reports (line 125 in patch), or should more drastic action be taken? One request: Naming patches with a final number really confuses all my editors, how about HDFS-854 -1.patch (although numbering patches is greatly appreciated!)
          Hide
          Rodrigo Schmidt added a comment -

          I agree with Jakob about the patch name.

          Show
          Rodrigo Schmidt added a comment - I agree with Jakob about the patch name.
          Hide
          Hadoop QA added a comment -

          -1 overall. Here are the results of testing the latest attachment
          http://issues.apache.org/jira/secure/attachment/12438985/HDFS-854.patch.1
          against trunk revision 926469.

          +1 @author. The patch does not contain any @author tags.

          +1 tests included. The patch appears to include 3 new or modified tests.

          +1 javadoc. The javadoc tool did not generate any warning messages.

          +1 javac. The applied patch does not increase the total number of javac compiler warnings.

          +1 findbugs. The patch does not introduce any new Findbugs warnings.

          +1 release audit. The applied patch does not increase the total number of release audit warnings.

          -1 core tests. The patch failed core unit tests.

          -1 contrib tests. The patch failed contrib unit tests.

          Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/283/testReport/
          Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/283/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
          Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/283/artifact/trunk/build/test/checkstyle-errors.html
          Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/283/console

          This message is automatically generated.

          Show
          Hadoop QA added a comment - -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12438985/HDFS-854.patch.1 against trunk revision 926469. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 3 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. -1 core tests. The patch failed core unit tests. -1 contrib tests. The patch failed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/283/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/283/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/283/artifact/trunk/build/test/checkstyle-errors.html Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/283/console This message is automatically generated.
          Hide
          Dmytro Molkov added a comment -

          Addressing Jakob's comments:

          Moved dfs.datanode.directoryscan.threads to DFSConfigKeys
          Changed the name of the patch file

          And we are now throwing RuntimeException in case of failure in compile report.
          Previous behaviour was - nothing in the call stack throws Exception except for those runtime ones, if there is a runtime exception - shutdown the datanode.
          Future abstraction in java throws an exception in case your subroutine throws and you want to catch it so we need to catch Exception and throw RuntimeException to save the semantics of the call.

          Show
          Dmytro Molkov added a comment - Addressing Jakob's comments: Moved dfs.datanode.directoryscan.threads to DFSConfigKeys Changed the name of the patch file And we are now throwing RuntimeException in case of failure in compile report. Previous behaviour was - nothing in the call stack throws Exception except for those runtime ones, if there is a runtime exception - shutdown the datanode. Future abstraction in java throws an exception in case your subroutine throws and you want to catch it so we need to catch Exception and throw RuntimeException to save the semantics of the call.
          Hide
          Rodrigo Schmidt added a comment -

          Patch looks good to me. +1.

          Show
          Rodrigo Schmidt added a comment - Patch looks good to me. +1.
          Hide
          Dmytro Molkov added a comment -

          Submitting the latest version for Hudson

          Show
          Dmytro Molkov added a comment - Submitting the latest version for Hudson
          Hide
          Hadoop QA added a comment -

          -1 overall. Here are the results of testing the latest attachment
          http://issues.apache.org/jira/secure/attachment/12439737/HDFS-854-2.patch
          against trunk revision 927999.

          +1 @author. The patch does not contain any @author tags.

          +1 tests included. The patch appears to include 3 new or modified tests.

          +1 javadoc. The javadoc tool did not generate any warning messages.

          +1 javac. The applied patch does not increase the total number of javac compiler warnings.

          +1 findbugs. The patch does not introduce any new Findbugs warnings.

          +1 release audit. The applied patch does not increase the total number of release audit warnings.

          -1 core tests. The patch failed core unit tests.

          -1 contrib tests. The patch failed contrib unit tests.

          Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/287/testReport/
          Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/287/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
          Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/287/artifact/trunk/build/test/checkstyle-errors.html
          Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/287/console

          This message is automatically generated.

          Show
          Hadoop QA added a comment - -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12439737/HDFS-854-2.patch against trunk revision 927999. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 3 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. -1 core tests. The patch failed core unit tests. -1 contrib tests. The patch failed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/287/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/287/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/287/artifact/trunk/build/test/checkstyle-errors.html Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/287/console This message is automatically generated.
          Hide
          Dmytro Molkov added a comment -

          The errors in the build system again look like they are not related to the actual patch. Two errors in BlockScanner are

          java.lang.RuntimeException: java.util.zip.ZipException: error reading zip file
          at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:1715)
          at org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:1529)
          at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:1475)
          at org.apache.hadoop.conf.Configuration.set(Configuration.java:596)
          at org.apache.hadoop.conf.Configuration.setLong(Configuration.java:731)
          at org.apache.hadoop.hdfs.TestDatanodeBlockScanner.blockCorruptionRecoveryPolicy(TestDatanodeBlockScanner.java:277)
          at org.apache.hadoop.hdfs.TestDatanodeBlockScanner.testBlockCorruptionRecoveryPolicy(TestDatanodeBlockScanner.java:269)

          and there is one more error with HDFSProxy which cannot have anything to do with my code changes.

          Show
          Dmytro Molkov added a comment - The errors in the build system again look like they are not related to the actual patch. Two errors in BlockScanner are java.lang.RuntimeException: java.util.zip.ZipException: error reading zip file at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:1715) at org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:1529) at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:1475) at org.apache.hadoop.conf.Configuration.set(Configuration.java:596) at org.apache.hadoop.conf.Configuration.setLong(Configuration.java:731) at org.apache.hadoop.hdfs.TestDatanodeBlockScanner.blockCorruptionRecoveryPolicy(TestDatanodeBlockScanner.java:277) at org.apache.hadoop.hdfs.TestDatanodeBlockScanner.testBlockCorruptionRecoveryPolicy(TestDatanodeBlockScanner.java:269) and there is one more error with HDFSProxy which cannot have anything to do with my code changes.
          Hide
          Jakob Homan added a comment -

          +1. TestDataNodeScanner passes with the patch on my box - Hudson's acting up again. Other test failure is unrelated. Unless there are more comments, I'll commit this this evening.

          Show
          Jakob Homan added a comment - +1. TestDataNodeScanner passes with the patch on my box - Hudson's acting up again. Other test failure is unrelated. Unless there are more comments, I'll commit this this evening.
          Hide
          Jakob Homan added a comment -

          I have committed this. Resolving as fixed. Thanks for the contribution, Dmytro!

          Show
          Jakob Homan added a comment - I have committed this. Resolving as fixed. Thanks for the contribution, Dmytro!
          Hide
          Hudson added a comment -

          Integrated in Hadoop-Hdfs-trunk-Commit #227 (See http://hudson.zones.apache.org/hudson/job/Hadoop-Hdfs-trunk-Commit/227/)

          Show
          Hudson added a comment - Integrated in Hadoop-Hdfs-trunk-Commit #227 (See http://hudson.zones.apache.org/hudson/job/Hadoop-Hdfs-trunk-Commit/227/ )
          Hide
          Hudson added a comment -

          Integrated in Hdfs-Patch-h2.grid.sp2.yahoo.net #146 (See http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h2.grid.sp2.yahoo.net/146/)

          Show
          Hudson added a comment - Integrated in Hdfs-Patch-h2.grid.sp2.yahoo.net #146 (See http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h2.grid.sp2.yahoo.net/146/ )
          Hide
          Hudson added a comment -

          Integrated in Hdfs-Patch-h5.grid.sp2.yahoo.net #302 (See http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/302/)

          Show
          Hudson added a comment - Integrated in Hdfs-Patch-h5.grid.sp2.yahoo.net #302 (See http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/302/ )
          Hide
          Hudson added a comment -

          Integrated in Hadoop-Hdfs-trunk #275 (See http://hudson.zones.apache.org/hudson/job/Hadoop-Hdfs-trunk/275/)

          Show
          Hudson added a comment - Integrated in Hadoop-Hdfs-trunk #275 (See http://hudson.zones.apache.org/hudson/job/Hadoop-Hdfs-trunk/275/ )
          Show
          Matt Foley added a comment - Please see https://issues.apache.org/jira/browse/HDFS-270?focusedCommentId=12918753

            People

            • Assignee:
              Dmytro Molkov
              Reporter:
              dhruba borthakur
            • Votes:
              0 Vote for this issue
              Watchers:
              12 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development