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Posted to common-issues@hadoop.apache.org by GitBox <gi...@apache.org> on 2022/06/12 01:26:55 UTC

[GitHub] [hadoop] virajjasani opened a new pull request, #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

virajjasani opened a new pull request, #4431:
URL: https://github.com/apache/hadoop/pull/4431

   ### Description of PR
   RPC Servers provide bunch of useful information like num of open connections, slow requests, num of in-progress handlers, RPC processing time, queue time etc, however so far it doesn't provide accumulation of all requests as well as current snapshot of requests per second served by the server. Exposing them would benefit from operational viewpoint in identifying how busy the servers have been and how much load they are currently serving in the presence of cluster wide high load.
   
   ### How was this patch tested?
   Local dev cluster and UT.
   
   ### For code changes:
   
   - [X] Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
   


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[GitHub] [hadoop] virajjasani commented on a diff in pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
virajjasani commented on code in PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#discussion_r898341425


##########
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestConsistentReadsObserver.java:
##########
@@ -123,7 +123,7 @@ public void testRequeueCall() throws Exception {
         + CommonConfigurationKeys.IPC_BACKOFF_ENABLE, true);
 
     NameNodeAdapter.getRpcServer(nn).refreshCallQueue(configuration);
-    assertEquals(1, NameNodeAdapter.getRpcServer(nn).getTotalRequests());
+    assertTrue(NameNodeAdapter.getRpcServer(nn).getTotalRequests() > 0);

Review Comment:
   I agree, this is bit painful for debugging purpose. Updated with assertJ as it has better APIs to deal with such conditions (`assertThat(x).isGreaterThan(y)`).
   Updated with the same, thanks for the suggestion @steveloughran 



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[GitHub] [hadoop] hadoop-yetus commented on pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#issuecomment-1157203702

   :broken_heart: **-1 overall**
   
   
   
   
   
   
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[GitHub] [hadoop] virajjasani commented on pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
virajjasani commented on PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#issuecomment-1157146875

   Thanks @tomscut, addressed comments.


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[GitHub] [hadoop] steveloughran commented on a diff in pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
steveloughran commented on code in PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#discussion_r895165187


##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java:
##########
@@ -1054,5 +1054,9 @@ public class CommonConfigurationKeysPublic {
   public static final String HADOOP_HTTP_IDLE_TIMEOUT_MS_KEY =
       "hadoop.http.idle_timeout.ms";
   public static final int HADOOP_HTTP_IDLE_TIMEOUT_MS_DEFAULT = 60000;
+
+  public static final String IPC_SERVER_METRICS_UPDATE_RUNNER_INTERVAL =

Review Comment:
   javadocs for new stuff please.



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[GitHub] [hadoop] tomscut merged pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
tomscut merged PR #4431:
URL: https://github.com/apache/hadoop/pull/4431


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[GitHub] [hadoop] hadoop-yetus commented on pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#issuecomment-1157635614

   :broken_heart: **-1 overall**
   
   
   
   
   
   
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[GitHub] [hadoop] steveloughran commented on pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
steveloughran commented on PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#issuecomment-1159144697

   +1 from me, merge into trunk and branch-3.3 


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[GitHub] [hadoop] hadoop-yetus commented on pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#issuecomment-1153145004

   :broken_heart: **-1 overall**
   
   
   
   
   
   
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[GitHub] [hadoop] tomscut commented on a diff in pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
tomscut commented on code in PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#discussion_r898615298


##########
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java:
##########
@@ -1697,6 +1700,61 @@ public void testRpcMetricsInNanos() throws Exception {
     }
   }
 
+  @Test
+  public void testNumTotalRequestsMetrics() throws Exception {
+    UserGroupInformation ugi = UserGroupInformation.
+        createUserForTesting("userXyz", new String[0]);
+
+    final Server server = setupTestServer(conf, 1);
+
+    ExecutorService executorService = null;
+    try {
+      RpcMetrics rpcMetrics = server.getRpcMetrics();
+      assertEquals(0, rpcMetrics.getTotalRequests());
+      assertEquals(0.0, rpcMetrics.getTotalRequestsPerSecond(), 0.0);

Review Comment:
   RpcMetrics#getTotalRequestsPerSecond return `long`, so we can make some change.
   
   ```suggestion
         assertEquals(0, rpcMetrics.getTotalRequestsPerSecond());
   ```



##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java:
##########
@@ -4061,4 +4103,32 @@ protected int getMaxIdleTime() {
   public String getServerName() {
     return serverName;
   }
+
+  /**
+   * Server metrics updater thread, used to update some metrics on a regular basis.
+   * For instance, requests per second.
+   */
+  private class MetricsUpdateRunner implements Runnable {
+
+    private long lastExecuted = 0;
+
+    @Override
+    public synchronized void run() {
+      long currentTime = Time.monotonicNow();
+      if (lastExecuted == 0) {
+        lastExecuted = currentTime - metricsUpdaterInterval;
+      }
+      long currentTotalRequests = totalRequests.sum();
+      long totalRequestsDiff = currentTotalRequests - lastSeenTotalRequests;
+      lastSeenTotalRequests = currentTotalRequests;
+      if ((currentTime - lastExecuted) > 0) {
+        double totalRequestsPerMillis =

Review Comment:
   The unit here is `second`, so the variable name should be changed.



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[GitHub] [hadoop] tomscut commented on pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
tomscut commented on PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#issuecomment-1159357710

   Thanks @virajjasani for your contribution! Thanks @steveloughran for your review!


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[GitHub] [hadoop] steveloughran commented on a diff in pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
steveloughran commented on code in PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#discussion_r897690828


##########
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestConsistentReadsObserver.java:
##########
@@ -123,7 +123,7 @@ public void testRequeueCall() throws Exception {
         + CommonConfigurationKeys.IPC_BACKOFF_ENABLE, true);
 
     NameNodeAdapter.getRpcServer(nn).refreshCallQueue(configuration);
-    assertEquals(1, NameNodeAdapter.getRpcServer(nn).getTotalRequests());
+    assertTrue(NameNodeAdapter.getRpcServer(nn).getTotalRequests() > 0);

Review Comment:
   if you have an assertion where a useful message isn't autogenerated the way assertequals does, afraid you will need to add a message *or* use assertJ to describe the assert. sorry.



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[GitHub] [hadoop] steveloughran commented on a diff in pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
steveloughran commented on code in PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#discussion_r900425047


##########
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/ha/TestConsistentReadsObserver.java:
##########
@@ -123,7 +123,7 @@ public void testRequeueCall() throws Exception {
         + CommonConfigurationKeys.IPC_BACKOFF_ENABLE, true);
 
     NameNodeAdapter.getRpcServer(nn).refreshCallQueue(configuration);
-    assertEquals(1, NameNodeAdapter.getRpcServer(nn).getTotalRequests());
+    assertTrue(NameNodeAdapter.getRpcServer(nn).getTotalRequests() > 0);

Review Comment:
   thanks! it is pretty verbose for the little things, but i find assertj lovely for complex things, especially collections



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[GitHub] [hadoop] tomscut commented on pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
tomscut commented on PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#issuecomment-1159358764

   Hi @virajjasani , I found some conflicts when cherry-pick this to branch-3.3. For security, could you please submit a new PR to branch-3.3 separately? Thanks a lot!


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[GitHub] [hadoop] hadoop-yetus commented on pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#issuecomment-1155602577

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[GitHub] [hadoop] virajjasani commented on a diff in pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
virajjasani commented on code in PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#discussion_r895217032


##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java:
##########
@@ -1054,5 +1054,9 @@ public class CommonConfigurationKeysPublic {
   public static final String HADOOP_HTTP_IDLE_TIMEOUT_MS_KEY =
       "hadoop.http.idle_timeout.ms";
   public static final int HADOOP_HTTP_IDLE_TIMEOUT_MS_DEFAULT = 60000;
+
+  public static final String IPC_SERVER_METRICS_UPDATE_RUNNER_INTERVAL =

Review Comment:
   Done, thanks



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[GitHub] [hadoop] hadoop-yetus commented on pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#issuecomment-1153493546

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   | -1 :x: |  javadoc  |   1m 41s | [/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4431/2/artifact/out/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.txt) |  hadoop-hdfs in the patch failed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.  |
   | +1 :green_heart: |  javadoc  |   3m 39s |  |  the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  spotbugs  |   7m 18s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  24m 34s |  |  patch has no errors when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  18m 36s |  |  hadoop-common in the patch passed.  |
   | +1 :green_heart: |  unit  | 422m 34s |  |  hadoop-hdfs in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   1m 58s |  |  The patch does not generate ASF License warnings.  |
   |  |   | 668m 31s |  |  |
   
   
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   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4431/2/artifact/out/Dockerfile |
   | GITHUB PR | https://github.com/apache/hadoop/pull/4431 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets markdownlint |
   | uname | Linux bc4d7c72c604 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 89959a3816bcc9eba3184d2ec882524d52f59560 |
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   |  Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4431/2/testReport/ |
   | Max. process+thread count | 3152 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs U: . |
   | Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4431/2/console |
   | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
   | Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
   
   
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[GitHub] [hadoop] hadoop-yetus commented on pull request #4431: HADOOP-18288. Total requests and total requests per sec served by RPC servers

Posted by GitBox <gi...@apache.org>.
hadoop-yetus commented on PR #4431:
URL: https://github.com/apache/hadoop/pull/4431#issuecomment-1157200013

   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 41s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  1s |  |  No case conflicting files found.  |
   | +0 :ok: |  codespell  |   0m  0s |  |  codespell was not available.  |
   | +0 :ok: |  detsecrets  |   0m  0s |  |  detect-secrets was not available.  |
   | +0 :ok: |  markdownlint  |   0m  0s |  |  markdownlint was not available.  |
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to include 3 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +0 :ok: |  mvndep  |  15m  0s |  |  Maven dependency ordering for branch  |
   | +1 :green_heart: |  mvninstall  |  25m  6s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  22m 55s |  |  trunk passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  compile  |  20m 20s |  |  trunk passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  checkstyle  |   4m 26s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   4m 28s |  |  trunk passed  |
   | -1 :x: |  javadoc  |   1m 45s | [/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4431/5/artifact/out/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.txt) |  hadoop-hdfs in trunk failed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.  |
   | +1 :green_heart: |  javadoc  |   3m 42s |  |  trunk passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  spotbugs  |   7m 12s |  |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  24m 19s |  |  branch has no errors when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +0 :ok: |  mvndep  |   0m 30s |  |  Maven dependency ordering for patch  |
   | +1 :green_heart: |  mvninstall  |   2m 29s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  22m  3s |  |  the patch passed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  javac  |  22m  3s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  20m 27s |  |  the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  javac  |  20m 27s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks issues.  |
   | +1 :green_heart: |  checkstyle  |   4m 16s |  |  the patch passed  |
   | +1 :green_heart: |  mvnsite  |   4m 26s |  |  the patch passed  |
   | -1 :x: |  javadoc  |   1m 43s | [/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4431/5/artifact/out/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.txt) |  hadoop-hdfs in the patch failed with JDK Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1.  |
   | +1 :green_heart: |  javadoc  |   3m 40s |  |  the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  spotbugs  |   7m 23s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  24m 23s |  |  patch has no errors when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  18m 43s |  |  hadoop-common in the patch passed.  |
   | +1 :green_heart: |  unit  | 243m 11s |  |  hadoop-hdfs in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   1m 59s |  |  The patch does not generate ASF License warnings.  |
   |  |   | 489m 26s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4431/5/artifact/out/Dockerfile |
   | GITHUB PR | https://github.com/apache/hadoop/pull/4431 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets markdownlint |
   | uname | Linux 2d51ba770ccb 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 2d7e78fc66b870484d4f89357be76cb2328053fe |
   | Default Java | Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07 |
   | Multi-JDK versions | /usr/lib/jvm/java-11-openjdk-amd64:Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07 |
   |  Test Results | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4431/5/testReport/ |
   | Max. process+thread count | 3212 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs U: . |
   | Console output | https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4431/5/console |
   | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
   | Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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