Details

    • Type: Sub-task
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.7.0, HDFS-6581
    • Fix Version/s: 2.8.0, 2.7.1, 3.0.0-alpha1
    • Component/s: documentation
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Add feature documentation explaining use cases, how to configure RAM_DISK and API updates.

      1. HDFS-7164.01.patch
        12 kB
        Arpit Agarwal
      2. HDFS-7164.02.patch
        12 kB
        Arpit Agarwal
      3. HDFS-7164.03.patch
        11 kB
        Arpit Agarwal
      4. HDFS-7164.04.patch
        11 kB
        Arpit Agarwal
      5. HDFS-7164.05.patch
        11 kB
        Arpit Agarwal
      6. HDFS-7164.06.patch
        11 kB
        Arpit Agarwal
      7. HDFS-7164.07.patch
        11 kB
        Arpit Agarwal
      8. LazyPersistWrites.png
        105 kB
        Arpit Agarwal
      9. site.tar.bz2
        6.32 MB
        Arpit Agarwal

        Issue Links

          Activity

          Hide
          hadoopqa Hadoop QA added a comment -



          -1 overall



          Vote Subsystem Runtime Comment
          -1 pre-patch 18m 11s Findbugs (version ) appears to be broken on trunk.
          +1 @author 0m 0s The patch does not contain any @author tags.
          -1 tests included 0m 0s The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
          -1 javac 1m 24s The patch appears to cause the build to fail.



          Subsystem Report/Notes
          Patch URL http://issues.apache.org/jira/secure/attachment/12739260/HDFS-7164.02.patch
          Optional Tests javadoc javac unit findbugs checkstyle site
          git revision trunk / e4489d9
          Console output https://builds.apache.org/job/PreCommit-HDFS-Build/11324/console

          This message was automatically generated.

          Show
          hadoopqa Hadoop QA added a comment - -1 overall Vote Subsystem Runtime Comment -1 pre-patch 18m 11s Findbugs (version ) appears to be broken on trunk. +1 @author 0m 0s The patch does not contain any @author tags. -1 tests included 0m 0s The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. -1 javac 1m 24s The patch appears to cause the build to fail. Subsystem Report/Notes Patch URL http://issues.apache.org/jira/secure/attachment/12739260/HDFS-7164.02.patch Optional Tests javadoc javac unit findbugs checkstyle site git revision trunk / e4489d9 Console output https://builds.apache.org/job/PreCommit-HDFS-Build/11324/console This message was automatically generated.
          Hide
          arpitagarwal Arpit Agarwal added a comment -

          Fix typo in previous patch that caused the build failure.

          Show
          arpitagarwal Arpit Agarwal added a comment - Fix typo in previous patch that caused the build failure.
          Hide
          hadoopqa Hadoop QA added a comment -



          +1 overall



          Vote Subsystem Runtime Comment
          0 pre-patch 2m 53s Pre-patch trunk compilation is healthy.
          +1 @author 0m 0s The patch does not contain any @author tags.
          +1 release audit 0m 20s The applied patch does not increase the total number of release audit warnings.
          +1 site 2m 58s Site still builds.
          +1 whitespace 0m 0s The patch has no lines that end in whitespace.
              6m 15s  



          Subsystem Report/Notes
          Patch URL http://issues.apache.org/jira/secure/attachment/12739270/HDFS-7164.03.patch
          Optional Tests site
          git revision trunk / e4489d9
          Java 1.7.0_55
          uname Linux asf900.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
          Console output https://builds.apache.org/job/PreCommit-HDFS-Build/11325/console

          This message was automatically generated.

          Show
          hadoopqa Hadoop QA added a comment - +1 overall Vote Subsystem Runtime Comment 0 pre-patch 2m 53s Pre-patch trunk compilation is healthy. +1 @author 0m 0s The patch does not contain any @author tags. +1 release audit 0m 20s The applied patch does not increase the total number of release audit warnings. +1 site 2m 58s Site still builds. +1 whitespace 0m 0s The patch has no lines that end in whitespace.     6m 15s   Subsystem Report/Notes Patch URL http://issues.apache.org/jira/secure/attachment/12739270/HDFS-7164.03.patch Optional Tests site git revision trunk / e4489d9 Java 1.7.0_55 uname Linux asf900.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Console output https://builds.apache.org/job/PreCommit-HDFS-Build/11325/console This message was automatically generated.
          Hide
          hadoopqa Hadoop QA added a comment -



          +1 overall



          Vote Subsystem Runtime Comment
          0 pre-patch 2m 52s Pre-patch trunk compilation is healthy.
          +1 @author 0m 0s The patch does not contain any @author tags.
          +1 release audit 0m 21s The applied patch does not increase the total number of release audit warnings.
          +1 site 2m 57s Site still builds.
          +1 whitespace 0m 0s The patch has no lines that end in whitespace.
              6m 14s  



          Subsystem Report/Notes
          Patch URL http://issues.apache.org/jira/secure/attachment/12739305/HDFS-7164.04.patch
          Optional Tests site
          git revision trunk / c17439c
          Java 1.7.0_55
          uname Linux asf906.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
          Console output https://builds.apache.org/job/PreCommit-HDFS-Build/11327/console

          This message was automatically generated.

          Show
          hadoopqa Hadoop QA added a comment - +1 overall Vote Subsystem Runtime Comment 0 pre-patch 2m 52s Pre-patch trunk compilation is healthy. +1 @author 0m 0s The patch does not contain any @author tags. +1 release audit 0m 21s The applied patch does not increase the total number of release audit warnings. +1 site 2m 57s Site still builds. +1 whitespace 0m 0s The patch has no lines that end in whitespace.     6m 14s   Subsystem Report/Notes Patch URL http://issues.apache.org/jira/secure/attachment/12739305/HDFS-7164.04.patch Optional Tests site git revision trunk / c17439c Java 1.7.0_55 uname Linux asf906.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Console output https://builds.apache.org/job/PreCommit-HDFS-Build/11327/console This message was automatically generated.
          Hide
          brahmareddy Brahma Reddy Battula added a comment -

          Patch overall looks good to me..

          One minor nit:

          would mind update dfs.data.dir to dfs.datanode.data.dir, since dfs.data.dir is deprecated..

          Show
          brahmareddy Brahma Reddy Battula added a comment - Patch overall looks good to me.. One minor nit: would mind update dfs.data.dir to dfs.datanode.data.dir , since dfs.data.dir is deprecated..
          Hide
          xyao Xiaoyu Yao added a comment -

          Thanks Arpit Agarwal for adding document for this. That will be very helpful for people to understand and use this feature.
          Patch looks good to me overall. In addition to Brahma Reddy Battula's comments, I just have a few minor issues.

          CentralizedCacheManagement.md

          "The DataNodes" -> The DataNode
          

          MemoryStorage.md

          1. "Rare data loss is possible in the event of a node restart or a network partition."
          -> Rare data loss is possible in the event of a data node restart *before replicas are persisted to disk*. 
          "network partition" in here is not very clear, maybe we can remove it.
          
          2. "Applications that use Lazy Persist writes"
          -> "Lazy Persist Writes" should be used consistently.
          
          3. "Applications that use Lazy Persist writes will work when there is insufficient memory or when the feature is not configured by the administrator. HDFS will transparently use hard disk storage for writes when memory is unavailable or not configured."
          -> Can you elaborate "when the feature is not configured by the administrator"? Or we can say, this feature will continue to work by automatically fallback to DISK storage for write if memory is insufficient, unavailable or not configured. 
          
          4. ",the "locked-in-memory size" ulimit (`ulimit -l`) of the Data Node user also needs to be increased to match this parameter (see the related section on [OS Limits]"
          ->"Data Node user", do you mean hdfs super user or the Data Node?
          
          5. "Using more than one `tmpfs` partition per Data Node for Lazy Persist writes is not recommended."
          -> Lazy Persist Writes
          
          6. "This step is crucial. You will lose data if a `tmpfs` mount is not correctly tagged as RAM_DISK."
          -> Can you elaborate more on this? For example, "Without RAM_DISK tag, the volatile storage will be treated as DISK without lazy persist. Data will be lost upon Data Node restart."
          

          I tried to apply the patch and check the rendered new sites but git apply --binary always failed. Do I miss anything?

          $ git apply --binary HDFS-7164.04.patch
          error: cannot apply binary patch to 'hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png' without full index line
          error: hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png: patch does not apply

          Show
          xyao Xiaoyu Yao added a comment - Thanks Arpit Agarwal for adding document for this. That will be very helpful for people to understand and use this feature. Patch looks good to me overall. In addition to Brahma Reddy Battula 's comments, I just have a few minor issues. CentralizedCacheManagement.md "The DataNodes" -> The DataNode MemoryStorage.md 1. "Rare data loss is possible in the event of a node restart or a network partition." -> Rare data loss is possible in the event of a data node restart *before replicas are persisted to disk*. "network partition" in here is not very clear, maybe we can remove it. 2. "Applications that use Lazy Persist writes" -> "Lazy Persist Writes" should be used consistently. 3. "Applications that use Lazy Persist writes will work when there is insufficient memory or when the feature is not configured by the administrator. HDFS will transparently use hard disk storage for writes when memory is unavailable or not configured." -> Can you elaborate "when the feature is not configured by the administrator" ? Or we can say, this feature will continue to work by automatically fallback to DISK storage for write if memory is insufficient, unavailable or not configured. 4. ",the " locked-in-memory size " ulimit (`ulimit -l`) of the Data Node user also needs to be increased to match this parameter (see the related section on [OS Limits]" -> "Data Node user" , do you mean hdfs super user or the Data Node? 5. "Using more than one `tmpfs` partition per Data Node for Lazy Persist writes is not recommended." -> Lazy Persist Writes 6. "This step is crucial. You will lose data if a `tmpfs` mount is not correctly tagged as RAM_DISK." -> Can you elaborate more on this ? For example, "Without RAM_DISK tag, the volatile storage will be treated as DISK without lazy persist. Data will be lost upon Data Node restart." I tried to apply the patch and check the rendered new sites but git apply --binary always failed. Do I miss anything? $ git apply --binary HDFS-7164 .04.patch error: cannot apply binary patch to 'hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png' without full index line error: hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png: patch does not apply
          Hide
          arpitagarwal Arpit Agarwal added a comment -

          Thanks for the great feedback both!

          I addressed all points.

          ->"Data Node user", do you mean hdfs super user or the Data Node?

          Xiaoyu Yao it means the user account under which the Data Node process runs. Let me know if you think there is a better way to state that. That sentence is copied over from the CentralizedCacheManagement document since this setting is common.

          Show
          arpitagarwal Arpit Agarwal added a comment - Thanks for the great feedback both! I addressed all points. ->"Data Node user", do you mean hdfs super user or the Data Node? Xiaoyu Yao it means the user account under which the Data Node process runs. Let me know if you think there is a better way to state that. That sentence is copied over from the CentralizedCacheManagement document since this setting is common.
          Hide
          arpitagarwal Arpit Agarwal added a comment -

          I tried to apply the patch and check the rendered new sites but git apply --binary always failed. Do I miss anything?

          The patch does not include the image. You can download and copy the image to hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/. I uploaded the rendered site.

          Show
          arpitagarwal Arpit Agarwal added a comment - I tried to apply the patch and check the rendered new sites but git apply --binary always failed. Do I miss anything? The patch does not include the image. You can download and copy the image to hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/ . I uploaded the rendered site.
          Hide
          arpitagarwal Arpit Agarwal added a comment -

          Fix remaining issue in CentralizedCacheManagement.md.

          Show
          arpitagarwal Arpit Agarwal added a comment - Fix remaining issue in CentralizedCacheManagement.md.
          Hide
          hadoopqa Hadoop QA added a comment -



          +1 overall



          Vote Subsystem Runtime Comment
          0 pre-patch 3m 19s Pre-patch trunk compilation is healthy.
          +1 @author 0m 0s The patch does not contain any @author tags.
          +1 release audit 0m 21s The applied patch does not increase the total number of release audit warnings.
          +1 site 3m 31s Site still builds.
          +1 whitespace 0m 0s The patch has no lines that end in whitespace.
              7m 16s  



          Subsystem Report/Notes
          Patch URL http://issues.apache.org/jira/secure/attachment/12739341/HDFS-7164.06.patch
          Optional Tests site
          git revision trunk / eef7b50
          Java 1.7.0_55
          uname Linux asf903.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
          Console output https://builds.apache.org/job/PreCommit-HDFS-Build/11330/console

          This message was automatically generated.

          Show
          hadoopqa Hadoop QA added a comment - +1 overall Vote Subsystem Runtime Comment 0 pre-patch 3m 19s Pre-patch trunk compilation is healthy. +1 @author 0m 0s The patch does not contain any @author tags. +1 release audit 0m 21s The applied patch does not increase the total number of release audit warnings. +1 site 3m 31s Site still builds. +1 whitespace 0m 0s The patch has no lines that end in whitespace.     7m 16s   Subsystem Report/Notes Patch URL http://issues.apache.org/jira/secure/attachment/12739341/HDFS-7164.06.patch Optional Tests site git revision trunk / eef7b50 Java 1.7.0_55 uname Linux asf903.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Console output https://builds.apache.org/job/PreCommit-HDFS-Build/11330/console This message was automatically generated.
          Hide
          xyao Xiaoyu Yao added a comment -

          The rendered site LGTM. +1 for v6 patch with two more NITs:

          1. Remove either "when" or "if" in the following
          "falling back to DISK storage when if memory is"
          
          2. Add a ',' after "RAM_DISK tag" 
          "Without the RAM_DISK tag HDFS will treat the `tmpfs` volume as non-volatile storage and data will not be saved to persistent storage. You will lose data on node restart.''
          
          Show
          xyao Xiaoyu Yao added a comment - The rendered site LGTM. +1 for v6 patch with two more NITs: 1. Remove either "when" or " if " in the following "falling back to DISK storage when if memory is" 2. Add a ',' after "RAM_DISK tag" "Without the RAM_DISK tag HDFS will treat the `tmpfs` volume as non- volatile storage and data will not be saved to persistent storage. You will lose data on node restart.''
          Hide
          arpitagarwal Arpit Agarwal added a comment -

          Thanks for the detailed review Xiaoyu Yao. v7 patch addresses those two points.

          Show
          arpitagarwal Arpit Agarwal added a comment - Thanks for the detailed review Xiaoyu Yao . v7 patch addresses those two points.
          Hide
          xyao Xiaoyu Yao added a comment -

          +1 for v7 patch.

          Show
          xyao Xiaoyu Yao added a comment - +1 for v7 patch.
          Hide
          arpitagarwal Arpit Agarwal added a comment -

          Thanks Xiaoyu Yao, will commit if Jenkins +1s.

          Show
          arpitagarwal Arpit Agarwal added a comment - Thanks Xiaoyu Yao , will commit if Jenkins +1s.
          Hide
          hadoopqa Hadoop QA added a comment -



          +1 overall



          Vote Subsystem Runtime Comment
          0 pre-patch 3m 18s Pre-patch trunk compilation is healthy.
          +1 @author 0m 0s The patch does not contain any @author tags.
          +1 release audit 0m 20s The applied patch does not increase the total number of release audit warnings.
          +1 site 2m 57s Site still builds.
          +1 whitespace 0m 0s The patch has no lines that end in whitespace.
              6m 38s  



          Subsystem Report/Notes
          Patch URL http://issues.apache.org/jira/secure/attachment/12739977/HDFS-7164.07.patch
          Optional Tests site
          git revision trunk / fbf55dc
          Java 1.7.0_55
          uname Linux asf900.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
          Console output https://builds.apache.org/job/PreCommit-HDFS-Build/11375/console

          This message was automatically generated.

          Show
          hadoopqa Hadoop QA added a comment - +1 overall Vote Subsystem Runtime Comment 0 pre-patch 3m 18s Pre-patch trunk compilation is healthy. +1 @author 0m 0s The patch does not contain any @author tags. +1 release audit 0m 20s The applied patch does not increase the total number of release audit warnings. +1 site 2m 57s Site still builds. +1 whitespace 0m 0s The patch has no lines that end in whitespace.     6m 38s   Subsystem Report/Notes Patch URL http://issues.apache.org/jira/secure/attachment/12739977/HDFS-7164.07.patch Optional Tests site git revision trunk / fbf55dc Java 1.7.0_55 uname Linux asf900.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Console output https://builds.apache.org/job/PreCommit-HDFS-Build/11375/console This message was automatically generated.
          Hide
          arpitagarwal Arpit Agarwal added a comment -

          Thanks for the reviews Xiaoyu Yao and Brahma Reddy Battula. Committed for 2.8.0.

          Show
          arpitagarwal Arpit Agarwal added a comment - Thanks for the reviews Xiaoyu Yao and Brahma Reddy Battula . Committed for 2.8.0.
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-trunk-Commit #8032 (See https://builds.apache.org/job/Hadoop-trunk-Commit/8032/)
          HDFS-7164. Feature documentation for HDFS-6581. (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          • hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md
          • hadoop-project/src/site/site.xml
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-trunk-Commit #8032 (See https://builds.apache.org/job/Hadoop-trunk-Commit/8032/ ) HDFS-7164 . Feature documentation for HDFS-6581 . (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md hadoop-project/src/site/site.xml
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Yarn-trunk #961 (See https://builds.apache.org/job/Hadoop-Yarn-trunk/961/)
          HDFS-7164. Feature documentation for HDFS-6581. (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a)

          • hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png
          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md
          • hadoop-project/src/site/site.xml
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Yarn-trunk #961 (See https://builds.apache.org/job/Hadoop-Yarn-trunk/961/ ) HDFS-7164 . Feature documentation for HDFS-6581 . (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a) hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md hadoop-project/src/site/site.xml hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #231 (See https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/231/)
          HDFS-7164. Feature documentation for HDFS-6581. (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a)

          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md
          • hadoop-project/src/site/site.xml
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md
          • hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png
          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #231 (See https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/231/ ) HDFS-7164 . Feature documentation for HDFS-6581 . (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a) hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md hadoop-project/src/site/site.xml hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #220 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/220/)
          HDFS-7164. Feature documentation for HDFS-6581. (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          • hadoop-project/src/site/site.xml
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md
          • hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #220 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/220/ ) HDFS-7164 . Feature documentation for HDFS-6581 . (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop-project/src/site/site.xml hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #229 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/229/)
          HDFS-7164. Feature documentation for HDFS-6581. (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          • hadoop-project/src/site/site.xml
          • hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #229 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/229/ ) HDFS-7164 . Feature documentation for HDFS-6581 . (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop-project/src/site/site.xml hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Mapreduce-trunk #2177 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2177/)
          HDFS-7164. Feature documentation for HDFS-6581. (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a)

          • hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png
          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          • hadoop-project/src/site/site.xml
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Mapreduce-trunk #2177 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2177/ ) HDFS-7164 . Feature documentation for HDFS-6581 . (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a) hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop-project/src/site/site.xml hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md
          Hide
          hudson Hudson added a comment -

          SUCCESS: Integrated in Hadoop-Hdfs-trunk #2159 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk/2159/)
          HDFS-7164. Feature documentation for HDFS-6581. (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a)

          • hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md
          • hadoop-project/src/site/site.xml
          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          • hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md
          Show
          hudson Hudson added a comment - SUCCESS: Integrated in Hadoop-Hdfs-trunk #2159 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk/2159/ ) HDFS-7164 . Feature documentation for HDFS-6581 . (Contributed by Arpit Agarwal) (arp: rev 5dbc8c9cb00da1ba55e1c94c4c1e19d34cf1bd5a) hadoop-hdfs-project/hadoop-hdfs/src/site/resources/images/LazyPersistWrites.png hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/CentralizedCacheManagement.md hadoop-project/src/site/site.xml hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/MemoryStorage.md
          Hide
          arpitagarwal Arpit Agarwal added a comment -

          Cherry-picked to branch-2.7 (documentation-only patch).

          Show
          arpitagarwal Arpit Agarwal added a comment - Cherry-picked to branch-2.7 (documentation-only patch).
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-trunk-Commit #8042 (See https://builds.apache.org/job/Hadoop-trunk-Commit/8042/)
          HDFS-7164. Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-trunk-Commit #8042 (See https://builds.apache.org/job/Hadoop-trunk-Commit/8042/ ) HDFS-7164 . Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #235 (See https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/235/)
          HDFS-7164. Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #235 (See https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/235/ ) HDFS-7164 . Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Yarn-trunk #965 (See https://builds.apache.org/job/Hadoop-Yarn-trunk/965/)
          HDFS-7164. Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Yarn-trunk #965 (See https://builds.apache.org/job/Hadoop-Yarn-trunk/965/ ) HDFS-7164 . Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Hdfs-trunk #2163 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk/2163/)
          HDFS-7164. Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Hdfs-trunk #2163 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk/2163/ ) HDFS-7164 . Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #224 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/224/)
          HDFS-7164. Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #224 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/224/ ) HDFS-7164 . Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #233 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/233/)
          HDFS-7164. Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Mapreduce-trunk-Java8 #233 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/233/ ) HDFS-7164 . Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Mapreduce-trunk #2181 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2181/)
          HDFS-7164. Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Mapreduce-trunk #2181 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2181/ ) HDFS-7164 . Update CHANGES.txt (arp: rev 658b5c84ae03b38293bea069efd2e5fd2922d74a) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

            People

            • Assignee:
              arpitagarwal Arpit Agarwal
              Reporter:
              arpitagarwal Arpit Agarwal
            • Votes:
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              6 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development