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  1. Hadoop HDFS
  2. HDFS-8284

Update documentation about how to use HTrace with HDFS

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.8.0, 3.0.0-alpha1
    • Component/s: documentation
    • Labels:
      None
    • Target Version/s:

      Description

      Tracing originated in DFSClient uses configuration keys prefixed with "dfs.client.htrace" after HDFS-8213. Server side tracing uses conf keys prefixed with "dfs.htrace".

      1. HDFS-8284.001.patch
        10 kB
        Masatake Iwasaki
      2. HDFS-8284.002.patch
        10 kB
        Masatake Iwasaki
      3. HDFS-8284.003.patch
        11 kB
        Masatake Iwasaki

        Issue Links

          Activity

          Hide
          iwasakims Masatake Iwasaki added a comment -

          I attached patch to fix doc for tracing. I moved default config values from core-default.xml to hdfs-default.xml in this patch.

          Show
          iwasakims Masatake Iwasaki added a comment - I attached patch to fix doc for tracing. I moved default config values from core-default.xml to hdfs-default.xml in this patch.
          Hide
          hadoopqa Hadoop QA added a comment -

          The patch artifact directory has been removed!
          This is a fatal error for test-patch.sh. Aborting.
          Jenkins (node H4) information at https://builds.apache.org/job/PreCommit-HDFS-Build/10779/ may provide some hints.

          Show
          hadoopqa Hadoop QA added a comment - The patch artifact directory has been removed! This is a fatal error for test-patch.sh. Aborting. Jenkins (node H4) information at https://builds.apache.org/job/PreCommit-HDFS-Build/10779/ may provide some hints.
          Hide
          cmccabe Colin P. McCabe added a comment -

          Thanks, Masatake Iwasaki.

          2328	<property>
          2329	  <name>dfs.htrace.spanreceiver.classes</name>
          2330	  <value></value>
          2331	  <description>
          2332	    A comma separated list of the fully-qualified class name of classes 
          2333	    implementing SpanReceiver. The tracing system works by collecting 
          2334	    information in structs called 'Spans'. It is up to you to choose 
          2335	    how you want to receive this information by implementing the 
          2336	    SpanReceiver interface.
          2337	  </description>
          2338	</property>
          

          I think this description should be something more like "The HTrace SpanReceiver to use for the NameNode, DataNode, and JournalNode." We shouldn't try to explain what spans are... let's just link to the HTrace documentation rather than repeating it here.

          2339	
          2340	<property>
          2341	  <name>dfs.client.htrace.spanreceiver.classes</name>
          2342	  <value></value>
          2343	  <description>
          2344	    A comma separated list of the fully-qualified class name of classes 
          2345	    implementing SpanReceiver. This property is used by DFSClient
          2346	    for tracing started internally.
          2347	  </description>
          2348	</property>
          

          I think this description should be something more like "The HTrace SpanReceiver for the HDFS client. You do not need to enable this if your client has been modified to use HTrace." Again, just provide a reference to the HTrace docs.

          213	### Starting tracing spans by configuration for HDFS client
          214	
          215	You can start tracing spans by setting configuration for HDFS client.
          216	This is useful for tracing programs where you don't have access to the source code.
          

          How about, "The DFSClient can enable tracing internally. This allows you to use HTrace with your client without modifying the client source code."

          Show
          cmccabe Colin P. McCabe added a comment - Thanks, Masatake Iwasaki . 2328 <property> 2329 <name>dfs.htrace.spanreceiver.classes</name> 2330 <value></value> 2331 <description> 2332 A comma separated list of the fully-qualified class name of classes 2333 implementing SpanReceiver. The tracing system works by collecting 2334 information in structs called 'Spans'. It is up to you to choose 2335 how you want to receive this information by implementing the 2336 SpanReceiver interface . 2337 </description> 2338 </property> I think this description should be something more like "The HTrace SpanReceiver to use for the NameNode, DataNode, and JournalNode." We shouldn't try to explain what spans are... let's just link to the HTrace documentation rather than repeating it here. 2339 2340 <property> 2341 <name>dfs.client.htrace.spanreceiver.classes</name> 2342 <value></value> 2343 <description> 2344 A comma separated list of the fully-qualified class name of classes 2345 implementing SpanReceiver. This property is used by DFSClient 2346 for tracing started internally. 2347 </description> 2348 </property> I think this description should be something more like "The HTrace SpanReceiver for the HDFS client. You do not need to enable this if your client has been modified to use HTrace." Again, just provide a reference to the HTrace docs. 213 ### Starting tracing spans by configuration for HDFS client 214 215 You can start tracing spans by setting configuration for HDFS client. 216 This is useful for tracing programs where you don't have access to the source code. How about, "The DFSClient can enable tracing internally. This allows you to use HTrace with your client without modifying the client source code."
          Hide
          iwasakims Masatake Iwasaki added a comment -

          Thanks for the comments, Colin P. McCabe. I updated the patch. I added the link to HTrace documentation to Tracing.md and made description in hdfs-default.xml simple.

          Show
          iwasakims Masatake Iwasaki added a comment - Thanks for the comments, Colin P. McCabe . I updated the patch. I added the link to HTrace documentation to Tracing.md and made description in hdfs-default.xml simple.
          Hide
          hadoopqa Hadoop QA added a comment -



          -1 overall



          Vote Subsystem Runtime Comment
          0 pre-patch 17m 38s Pre-patch trunk compilation is healthy.
          +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 7m 28s There were no new javac warning messages.
          +1 javadoc 9m 33s There were no new javadoc warning messages.
          +1 release audit 0m 22s 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 2 line(s) that end in whitespace. Use git apply --whitespace=fix.
          +1 install 1m 32s mvn install still works.
          +1 eclipse:eclipse 0m 32s The patch built with eclipse:eclipse.
          +1 common tests 22m 28s Tests passed in hadoop-common.
          +1 hdfs tests 166m 56s Tests passed in hadoop-hdfs.
              229m 38s  



          Subsystem Report/Notes
          Patch URL http://issues.apache.org/jira/secure/attachment/12730370/HDFS-8284.002.patch
          Optional Tests javadoc javac unit site
          git revision trunk / 318081c
          whitespace https://builds.apache.org/job/PreCommit-HDFS-Build/10807/artifact/patchprocess/whitespace.txt
          hadoop-common test log https://builds.apache.org/job/PreCommit-HDFS-Build/10807/artifact/patchprocess/testrun_hadoop-common.txt
          hadoop-hdfs test log https://builds.apache.org/job/PreCommit-HDFS-Build/10807/artifact/patchprocess/testrun_hadoop-hdfs.txt
          Test Results https://builds.apache.org/job/PreCommit-HDFS-Build/10807/testReport/
          Java 1.7.0_55
          uname Linux asf907.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/10807/console

          This message was automatically generated.

          Show
          hadoopqa Hadoop QA added a comment - -1 overall Vote Subsystem Runtime Comment 0 pre-patch 17m 38s Pre-patch trunk compilation is healthy. +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 7m 28s There were no new javac warning messages. +1 javadoc 9m 33s There were no new javadoc warning messages. +1 release audit 0m 22s 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 2 line(s) that end in whitespace. Use git apply --whitespace=fix. +1 install 1m 32s mvn install still works. +1 eclipse:eclipse 0m 32s The patch built with eclipse:eclipse. +1 common tests 22m 28s Tests passed in hadoop-common. +1 hdfs tests 166m 56s Tests passed in hadoop-hdfs.     229m 38s   Subsystem Report/Notes Patch URL http://issues.apache.org/jira/secure/attachment/12730370/HDFS-8284.002.patch Optional Tests javadoc javac unit site git revision trunk / 318081c whitespace https://builds.apache.org/job/PreCommit-HDFS-Build/10807/artifact/patchprocess/whitespace.txt hadoop-common test log https://builds.apache.org/job/PreCommit-HDFS-Build/10807/artifact/patchprocess/testrun_hadoop-common.txt hadoop-hdfs test log https://builds.apache.org/job/PreCommit-HDFS-Build/10807/artifact/patchprocess/testrun_hadoop-hdfs.txt Test Results https://builds.apache.org/job/PreCommit-HDFS-Build/10807/testReport/ Java 1.7.0_55 uname Linux asf907.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/10807/console This message was automatically generated.
          Hide
          cmccabe Colin P. McCabe added a comment -

          Thanks, Masatake Iwasaki. This looks really good.

          The only thing I would suggest is that we should remove the section or two on zipkin stuff. Instead, we should link to the upstream HTrace documentation about setting up span receivers. Having it in there makes people think that the only way to use htrace is through zipkin, which is certainly not true.

          Show
          cmccabe Colin P. McCabe added a comment - Thanks, Masatake Iwasaki . This looks really good. The only thing I would suggest is that we should remove the section or two on zipkin stuff. Instead, we should link to the upstream HTrace documentation about setting up span receivers. Having it in there makes people think that the only way to use htrace is through zipkin, which is certainly not true.
          Hide
          iwasakims Masatake Iwasaki added a comment -

          The only thing I would suggest is that we should remove the section or two on zipkin stuff. Instead, we should link to the upstream HTrace documentation about setting up span receivers.

          Sure. It also pointed to old repository (github.com/cloudera/htrace). I removed the zipkin subsection and added some info to SpanReceiver section.

          I also removed trailing whitespaces in 003.

          Show
          iwasakims Masatake Iwasaki added a comment - The only thing I would suggest is that we should remove the section or two on zipkin stuff. Instead, we should link to the upstream HTrace documentation about setting up span receivers. Sure. It also pointed to old repository (github.com/cloudera/htrace). I removed the zipkin subsection and added some info to SpanReceiver section. I also removed trailing whitespaces in 003.
          Hide
          hadoopqa Hadoop QA added a comment -



          -1 overall



          Vote Subsystem Runtime Comment
          0 pre-patch 17m 40s Pre-patch trunk compilation is healthy.
          +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 7m 26s There were no new javac warning messages.
          +1 javadoc 9m 40s There were no new javadoc warning messages.
          +1 release audit 0m 22s The applied patch does not increase the total number of release audit warnings.
          +1 site 2m 56s Site still builds.
          +1 whitespace 0m 0s The patch has no lines that end in whitespace.
          +1 install 1m 34s mvn install still works.
          +1 eclipse:eclipse 0m 31s The patch built with eclipse:eclipse.
          +1 common tests 22m 47s Tests passed in hadoop-common.
          +1 hdfs tests 168m 41s Tests passed in hadoop-hdfs.
              231m 44s  



          Subsystem Report/Notes
          Patch URL http://issues.apache.org/jira/secure/attachment/12730612/HDFS-8284.003.patch
          Optional Tests javadoc javac unit site
          git revision trunk / 0100b15
          hadoop-common test log https://builds.apache.org/job/PreCommit-HDFS-Build/10821/artifact/patchprocess/testrun_hadoop-common.txt
          hadoop-hdfs test log https://builds.apache.org/job/PreCommit-HDFS-Build/10821/artifact/patchprocess/testrun_hadoop-hdfs.txt
          Test Results https://builds.apache.org/job/PreCommit-HDFS-Build/10821/testReport/
          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/10821/console

          This message was automatically generated.

          Show
          hadoopqa Hadoop QA added a comment - -1 overall Vote Subsystem Runtime Comment 0 pre-patch 17m 40s Pre-patch trunk compilation is healthy. +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 7m 26s There were no new javac warning messages. +1 javadoc 9m 40s There were no new javadoc warning messages. +1 release audit 0m 22s The applied patch does not increase the total number of release audit warnings. +1 site 2m 56s Site still builds. +1 whitespace 0m 0s The patch has no lines that end in whitespace. +1 install 1m 34s mvn install still works. +1 eclipse:eclipse 0m 31s The patch built with eclipse:eclipse. +1 common tests 22m 47s Tests passed in hadoop-common. +1 hdfs tests 168m 41s Tests passed in hadoop-hdfs.     231m 44s   Subsystem Report/Notes Patch URL http://issues.apache.org/jira/secure/attachment/12730612/HDFS-8284.003.patch Optional Tests javadoc javac unit site git revision trunk / 0100b15 hadoop-common test log https://builds.apache.org/job/PreCommit-HDFS-Build/10821/artifact/patchprocess/testrun_hadoop-common.txt hadoop-hdfs test log https://builds.apache.org/job/PreCommit-HDFS-Build/10821/artifact/patchprocess/testrun_hadoop-hdfs.txt Test Results https://builds.apache.org/job/PreCommit-HDFS-Build/10821/testReport/ 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/10821/console This message was automatically generated.
          Hide
          cmccabe Colin P. McCabe added a comment -

          +1. Thanks, Masatake Iwasaki.

          Show
          cmccabe Colin P. McCabe added a comment - +1. Thanks, Masatake Iwasaki .
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-trunk-Commit #7778 (See https://builds.apache.org/job/Hadoop-trunk-Commit/7778/)
          HDFS-8284. Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8)

          • hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md
          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          • hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
          • hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-trunk-Commit #7778 (See https://builds.apache.org/job/Hadoop-trunk-Commit/7778/ ) HDFS-8284 . Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8) hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
          Hide
          hudson Hudson added a comment -

          SUCCESS: Integrated in Hadoop-Yarn-trunk-Java8 #191 (See https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/191/)
          HDFS-8284. Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8)

          • hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
          • hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          • hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md
          Show
          hudson Hudson added a comment - SUCCESS: Integrated in Hadoop-Yarn-trunk-Java8 #191 (See https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/191/ ) HDFS-8284 . Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8) hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml hadoop-common-project/hadoop-common/src/main/resources/core-default.xml hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md
          Hide
          hudson Hudson added a comment -

          SUCCESS: Integrated in Hadoop-Yarn-trunk #922 (See https://builds.apache.org/job/Hadoop-Yarn-trunk/922/)
          HDFS-8284. Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8)

          • hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          • hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
          • hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md
          Show
          hudson Hudson added a comment - SUCCESS: Integrated in Hadoop-Yarn-trunk #922 (See https://builds.apache.org/job/Hadoop-Yarn-trunk/922/ ) HDFS-8284 . Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8) hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop-common-project/hadoop-common/src/main/resources/core-default.xml hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Hdfs-trunk #2120 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk/2120/)
          HDFS-8284. Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8)

          • hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md
          • hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
          • hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Hdfs-trunk #2120 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk/2120/ ) HDFS-8284 . Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8) hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml hadoop-common-project/hadoop-common/src/main/resources/core-default.xml hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Hide
          hudson Hudson added a comment -

          FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #180 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/180/)
          HDFS-8284. Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8)

          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          • hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md
          • hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
          • hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
          Show
          hudson Hudson added a comment - FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #180 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/180/ ) HDFS-8284 . Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8) hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
          Hide
          hudson Hudson added a comment -

          SUCCESS: Integrated in Hadoop-Mapreduce-trunk-Java8 #190 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/190/)
          HDFS-8284. Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8)

          • hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md
          • hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
          • hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - SUCCESS: Integrated in Hadoop-Mapreduce-trunk-Java8 #190 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Java8/190/ ) HDFS-8284 . Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8) hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml hadoop-common-project/hadoop-common/src/main/resources/core-default.xml hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Hide
          hudson Hudson added a comment -

          SUCCESS: Integrated in Hadoop-Mapreduce-trunk #2138 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2138/)
          HDFS-8284. Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8)

          • hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
          • hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md
          • hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
          • hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
          Show
          hudson Hudson added a comment - SUCCESS: Integrated in Hadoop-Mapreduce-trunk #2138 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2138/ ) HDFS-8284 . Update documentation about how to use HTrace with HDFS (Masatake Iwasaki via Colin P. McCabe) (cmccabe: rev 8f7c2364d7254a1d987b095ba442bf20727796f8) hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml hadoop-common-project/hadoop-common/src/site/markdown/Tracing.md hadoop-common-project/hadoop-common/src/main/resources/core-default.xml hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt

            People

            • Assignee:
              iwasakims Masatake Iwasaki
              Reporter:
              iwasakims Masatake Iwasaki
            • Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:

                Development