Hadoop Common
  1. Hadoop Common
  2. HADOOP-10673

Update rpc metrics when the call throws an exception

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.6.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Currently RPC metrics isn't updated when the call throws an exception. We can either update the existing metrics or have a new set of metrics in the case of exception.

      1. HADOOP-10673-6.patch
        8 kB
        Ming Ma
      2. HADOOP-10673-5.patch
        7 kB
        Ming Ma
      3. HADOOP-10673-4.patch
        6 kB
        Ming Ma
      4. HADOOP-10673-2.patch
        6 kB
        Ming Ma
      5. HADOOP-10673.patch
        4 kB
        Ming Ma

        Activity

        Hide
        Hudson added a comment -

        FAILURE: Integrated in Hadoop-Hdfs-trunk #1806 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk/1806/)
        HADOOP-10673. Update rpc metrics when the call throws an exception. Contributed by Ming Ma. (jing9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1610879)

        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
        Show
        Hudson added a comment - FAILURE: Integrated in Hadoop-Hdfs-trunk #1806 (See https://builds.apache.org/job/Hadoop-Hdfs-trunk/1806/ ) HADOOP-10673 . Update rpc metrics when the call throws an exception. Contributed by Ming Ma. (jing9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1610879 ) /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
        Hide
        Hudson added a comment -

        FAILURE: Integrated in Hadoop-Mapreduce-trunk #1833 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1833/)
        HADOOP-10673. Update rpc metrics when the call throws an exception. Contributed by Ming Ma. (jing9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1610879)

        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
        Show
        Hudson added a comment - FAILURE: Integrated in Hadoop-Mapreduce-trunk #1833 (See https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1833/ ) HADOOP-10673 . Update rpc metrics when the call throws an exception. Contributed by Ming Ma. (jing9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1610879 ) /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
        Hide
        Hudson added a comment -

        FAILURE: Integrated in Hadoop-Yarn-trunk #614 (See https://builds.apache.org/job/Hadoop-Yarn-trunk/614/)
        HADOOP-10673. Update rpc metrics when the call throws an exception. Contributed by Ming Ma. (jing9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1610879)

        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
        Show
        Hudson added a comment - FAILURE: Integrated in Hadoop-Yarn-trunk #614 (See https://builds.apache.org/job/Hadoop-Yarn-trunk/614/ ) HADOOP-10673 . Update rpc metrics when the call throws an exception. Contributed by Ming Ma. (jing9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1610879 ) /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
        Hide
        Jing Zhao added a comment -

        I've committed this to trunk and branch-2. Thanks for the contribution, Ming Ma! Thanks for the review, Tsuyoshi Ozawa!

        Show
        Jing Zhao added a comment - I've committed this to trunk and branch-2. Thanks for the contribution, Ming Ma ! Thanks for the review, Tsuyoshi Ozawa !
        Hide
        Hudson added a comment -

        FAILURE: Integrated in Hadoop-trunk-Commit #5888 (See https://builds.apache.org/job/Hadoop-trunk-Commit/5888/)
        HADOOP-10673. Update rpc metrics when the call throws an exception. Contributed by Ming Ma. (jing9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1610879)

        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java
        • /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
        Show
        Hudson added a comment - FAILURE: Integrated in Hadoop-trunk-Commit #5888 (See https://builds.apache.org/job/Hadoop-trunk-Commit/5888/ ) HADOOP-10673 . Update rpc metrics when the call throws an exception. Contributed by Ming Ma. (jing9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1610879 ) /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/ProtobufRpcEngine.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/WritableRpcEngine.java /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java
        Hide
        Jing Zhao added a comment -

        The patch looks good to me. +1.

        Show
        Jing Zhao added a comment - The patch looks good to me. +1.
        Hide
        Hadoop QA added a comment -

        +1 overall. Here are the results of testing the latest attachment
        http://issues.apache.org/jira/secure/attachment/12650684/HADOOP-10673-6.patch
        against trunk revision .

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

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

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

        +1 javadoc. There were no new javadoc warning messages.

        +1 eclipse:eclipse. The patch built with eclipse:eclipse.

        +1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings.

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

        +1 core tests. The patch passed unit tests in hadoop-common-project/hadoop-common.

        +1 contrib tests. The patch passed contrib unit tests.

        Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4075//testReport/
        Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4075//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/12650684/HADOOP-10673-6.patch against trunk revision . +1 @author . The patch does not contain any @author tags. +1 tests included . The patch appears to include 1 new or modified test files. +1 javac . The applied patch does not increase the total number of javac compiler warnings. +1 javadoc . There were no new javadoc warning messages. +1 eclipse:eclipse . The patch built with eclipse:eclipse. +1 findbugs . The patch does not introduce any new Findbugs (version 1.3.9) warnings. +1 release audit . The applied patch does not increase the total number of release audit warnings. +1 core tests . The patch passed unit tests in hadoop-common-project/hadoop-common. +1 contrib tests . The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4075//testReport/ Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4075//console This message is automatically generated.
        Hide
        Ming Ma added a comment -

        Thanks, Tsuyoshi. Lohit Vijayarenu asked a good question how the increase of the number of metrics will impact metrics subsystem. The most common one might be StandbyException, which can be thrown regardless of methods. Other exceptions are likely to be specific to certain methods. Based on the current number of metrics, JMX size; number of methods, a very rough estimate can put the increase to around 10-15% for NN.

        So to be safe, we can aggregate by exception class name instead; that will still provide useful information (from the exception name, we can find the possible methods).

        Here is the updated patch.

        Show
        Ming Ma added a comment - Thanks, Tsuyoshi. Lohit Vijayarenu asked a good question how the increase of the number of metrics will impact metrics subsystem. The most common one might be StandbyException, which can be thrown regardless of methods. Other exceptions are likely to be specific to certain methods. Based on the current number of metrics, JMX size; number of methods, a very rough estimate can put the increase to around 10-15% for NN. So to be safe, we can aggregate by exception class name instead; that will still provide useful information (from the exception name, we can find the possible methods). Here is the updated patch.
        Hide
        Tsuyoshi Ozawa added a comment -

        Thanks for the updating, Ming. It looks better approach to me. One additional point: if we can make the variables final, we can remove null check in Server#stop().

            if (this.rpcMetrics != null) {
              this.rpcMetrics.shutdown();
            }
            if (this.rpcDetailedMetrics != null) {
              this.rpcDetailedMetrics.shutdown();
            }
        
        Show
        Tsuyoshi Ozawa added a comment - Thanks for the updating, Ming. It looks better approach to me. One additional point: if we can make the variables final, we can remove null check in Server#stop() . if ( this .rpcMetrics != null ) { this .rpcMetrics.shutdown(); } if ( this .rpcDetailedMetrics != null ) { this .rpcDetailedMetrics.shutdown(); }
        Hide
        Hadoop QA added a comment -

        +1 overall. Here are the results of testing the latest attachment
        http://issues.apache.org/jira/secure/attachment/12650428/HADOOP-10673-5.patch
        against trunk revision .

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

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

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

        +1 javadoc. There were no new javadoc warning messages.

        +1 eclipse:eclipse. The patch built with eclipse:eclipse.

        +1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings.

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

        +1 core tests. The patch passed unit tests in hadoop-common-project/hadoop-common.

        +1 contrib tests. The patch passed contrib unit tests.

        Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4065//testReport/
        Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4065//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/12650428/HADOOP-10673-5.patch against trunk revision . +1 @author . The patch does not contain any @author tags. +1 tests included . The patch appears to include 1 new or modified test files. +1 javac . The applied patch does not increase the total number of javac compiler warnings. +1 javadoc . There were no new javadoc warning messages. +1 eclipse:eclipse . The patch built with eclipse:eclipse. +1 findbugs . The patch does not introduce any new Findbugs (version 1.3.9) warnings. +1 release audit . The applied patch does not increase the total number of release audit warnings. +1 core tests . The patch passed unit tests in hadoop-common-project/hadoop-common. +1 contrib tests . The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4065//testReport/ Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4065//console This message is automatically generated.
        Hide
        Ming Ma added a comment -

        Thanks, Tsuyoshi.

        Here is the updated patch that makes the variables final.

        Show
        Ming Ma added a comment - Thanks, Tsuyoshi. Here is the updated patch that makes the variables final.
        Hide
        Tsuyoshi Ozawa added a comment -

        Ming Ma, thank you for the suggestion. I think this improvement is useful, too. One minor comment: both rpcMetrics and rpcDetailedMetrics are not final field, so how about adding null check before accessing them?

        +         server.rpcMetrics.addRpcQueueTime(qTime);
        +         server.rpcMetrics.addRpcProcessingTime(processingTime);
        +         server.rpcDetailedMetrics.addProcessingTime(detailedMetricsName,
        +             processingTime);
        
          protected RpcMetrics rpcMetrics;
          protected RpcDetailedMetrics rpcDetailedMetrics;
        
        Show
        Tsuyoshi Ozawa added a comment - Ming Ma , thank you for the suggestion. I think this improvement is useful, too. One minor comment: both rpcMetrics and rpcDetailedMetrics are not final field, so how about adding null check before accessing them? + server.rpcMetrics.addRpcQueueTime(qTime); + server.rpcMetrics.addRpcProcessingTime(processingTime); + server.rpcDetailedMetrics.addProcessingTime(detailedMetricsName, + processingTime); protected RpcMetrics rpcMetrics; protected RpcDetailedMetrics rpcDetailedMetrics;
        Hide
        Hadoop QA added a comment -

        +1 overall. Here are the results of testing the latest attachment
        http://issues.apache.org/jira/secure/attachment/12650395/HADOOP-10673-4.patch
        against trunk revision .

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

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

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

        +1 javadoc. There were no new javadoc warning messages.

        +1 eclipse:eclipse. The patch built with eclipse:eclipse.

        +1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings.

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

        +1 core tests. The patch passed unit tests in hadoop-common-project/hadoop-common.

        +1 contrib tests. The patch passed contrib unit tests.

        Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4063//testReport/
        Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4063//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/12650395/HADOOP-10673-4.patch against trunk revision . +1 @author . The patch does not contain any @author tags. +1 tests included . The patch appears to include 1 new or modified test files. +1 javac . The applied patch does not increase the total number of javac compiler warnings. +1 javadoc . There were no new javadoc warning messages. +1 eclipse:eclipse . The patch built with eclipse:eclipse. +1 findbugs . The patch does not introduce any new Findbugs (version 1.3.9) warnings. +1 release audit . The applied patch does not increase the total number of release audit warnings. +1 core tests . The patch passed unit tests in hadoop-common-project/hadoop-common. +1 contrib tests . The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4063//testReport/ Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4063//console This message is automatically generated.
        Hide
        Ming Ma added a comment -

        Updates with unit test.

        Show
        Ming Ma added a comment - Updates with unit test.
        Hide
        Hadoop QA added a comment -

        -1 overall. Here are the results of testing the latest attachment
        http://issues.apache.org/jira/secure/attachment/12650202/HADOOP-10673-2.patch
        against trunk revision .

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

        -1 tests included. 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. The applied patch does not increase the total number of javac compiler warnings.

        +1 javadoc. There were no new javadoc warning messages.

        +1 eclipse:eclipse. The patch built with eclipse:eclipse.

        +1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings.

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

        -1 core tests. The patch failed these unit tests in hadoop-common-project/hadoop-common:

        org.apache.hadoop.ha.TestZKFailoverControllerStress

        +1 contrib tests. The patch passed contrib unit tests.

        Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4059//testReport/
        Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4059//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/12650202/HADOOP-10673-2.patch against trunk revision . +1 @author . The patch does not contain any @author tags. -1 tests included . 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 . The applied patch does not increase the total number of javac compiler warnings. +1 javadoc . There were no new javadoc warning messages. +1 eclipse:eclipse . The patch built with eclipse:eclipse. +1 findbugs . The patch does not introduce any new Findbugs (version 1.3.9) warnings. +1 release audit . The applied patch does not increase the total number of release audit warnings. -1 core tests . The patch failed these unit tests in hadoop-common-project/hadoop-common: org.apache.hadoop.ha.TestZKFailoverControllerStress +1 contrib tests . The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4059//testReport/ Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4059//console This message is automatically generated.
        Hide
        Ming Ma added a comment -

        Thanks, Gera. Here is the updated patch. For RpcMetrics, it doesn't distinguish good call from waste call. For RpcDetailedMetrics, if the call throws exception, it will use $MethodName_$ExceptionClassSimpleName as the metrics name.

        Show
        Ming Ma added a comment - Thanks, Gera. Here is the updated patch. For RpcMetrics, it doesn't distinguish good call from waste call. For RpcDetailedMetrics, if the call throws exception, it will use $MethodName_$ExceptionClassSimpleName as the metrics name.
        Hide
        Gera Shegalov added a comment -

        Ming Ma, I think your suggestion of maintaining dedicated metrics for exceptions is useful to measure "wasted" calls.

        Show
        Gera Shegalov added a comment - Ming Ma , I think your suggestion of maintaining dedicated metrics for exceptions is useful to measure "wasted" calls.
        Hide
        Hadoop QA added a comment -

        -1 overall. Here are the results of testing the latest attachment
        http://issues.apache.org/jira/secure/attachment/12649405/HADOOP-10673.patch
        against trunk revision .

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

        -1 tests included. 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. The applied patch does not increase the total number of javac compiler warnings.

        +1 javadoc. There were no new javadoc warning messages.

        +1 eclipse:eclipse. The patch built with eclipse:eclipse.

        +1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings.

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

        +1 core tests. The patch passed unit tests in hadoop-common-project/hadoop-common.

        +1 contrib tests. The patch passed contrib unit tests.

        Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4032//testReport/
        Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4032//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/12649405/HADOOP-10673.patch against trunk revision . +1 @author . The patch does not contain any @author tags. -1 tests included . 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 . The applied patch does not increase the total number of javac compiler warnings. +1 javadoc . There were no new javadoc warning messages. +1 eclipse:eclipse . The patch built with eclipse:eclipse. +1 findbugs . The patch does not introduce any new Findbugs (version 1.3.9) warnings. +1 release audit . The applied patch does not increase the total number of release audit warnings. +1 core tests . The patch passed unit tests in hadoop-common-project/hadoop-common. +1 contrib tests . The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/4032//testReport/ Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/4032//console This message is automatically generated.
        Hide
        Ming Ma added a comment -

        The patch updates the existing rpc metrics in the case of exception. HDFS unit tests will be updated to cover this.

        Show
        Ming Ma added a comment - The patch updates the existing rpc metrics in the case of exception. HDFS unit tests will be updated to cover this.

          People

          • Assignee:
            Ming Ma
            Reporter:
            Ming Ma
          • Votes:
            1 Vote for this issue
            Watchers:
            7 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development