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Posted to common-commits@hadoop.apache.org by xk...@apache.org on 2019/12/03 22:20:25 UTC

[hadoop] branch branch-2.10 updated: HADOOP-16700. Track response time separately in Server.Call to avoid negative RpcQueueTime values. Contributed by xuzq.

This is an automated email from the ASF dual-hosted git repository.

xkrogen pushed a commit to branch branch-2.10
in repository https://gitbox.apache.org/repos/asf/hadoop.git


The following commit(s) were added to refs/heads/branch-2.10 by this push:
     new bada9d7  HADOOP-16700. Track response time separately in Server.Call to avoid negative RpcQueueTime values. Contributed by xuzq.
bada9d7 is described below

commit bada9d7f6fa16bf065fc3d892cd9b32e243e3696
Author: Erik Krogen <xk...@apache.org>
AuthorDate: Wed Nov 20 07:56:33 2019 -0800

    HADOOP-16700. Track response time separately in Server.Call to avoid negative RpcQueueTime values. Contributed by xuzq.
    
    (cherry picked from be77231452baee2c3dd68f7c0991411cae2eea1b)
    (cherry picked from c1ed2474595c672d95237c42a6e2a51913f14d25)
    (cherry picked from 23f25418e822f90aa6bd0daa0ba65ab548b05eb1)
    (cherry picked from 39daae6658fb270d6c8d156602d53ef74f119624)
---
 .../src/main/java/org/apache/hadoop/ipc/Server.java              | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
index f598c08..b7cc6ab 100644
--- a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
+++ b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
@@ -738,8 +738,8 @@ public abstract class Server {
     private volatile String detailedMetricsName = "";
     final int callId;            // the client's call id
     final int retryCount;        // the retry count of the call
-    long timestampNanos;         // time received when response is null
-                                 // time served when response is not null
+    long timestampNanos;         // time the call was received
+    long responseTimestampNanos; // time the call was served
     private AtomicInteger responseWaitCount = new AtomicInteger(1);
     final RPC.RpcKind rpcKind;
     final byte[] clientId;
@@ -776,6 +776,7 @@ public abstract class Server {
       this.callId = id;
       this.retryCount = retryCount;
       this.timestampNanos = Time.monotonicNowNanos();
+      this.responseTimestampNanos = timestampNanos;
       this.rpcKind = kind;
       this.clientId = clientId;
       this.traceScope = traceScope;
@@ -1574,7 +1575,7 @@ public abstract class Server {
         Iterator<RpcCall> iter = responseQueue.listIterator(0);
         while (iter.hasNext()) {
           call = iter.next();
-          if (now > call.timestampNanos + PURGE_INTERVAL_NANOS) {
+          if (now > call.responseTimestampNanos + PURGE_INTERVAL_NANOS) {
             closeConnection(call.connection);
             break;
           }
@@ -1638,7 +1639,7 @@ public abstract class Server {
             
             if (inHandler) {
               // set the serve time when the response has to be sent later
-              call.timestampNanos = Time.monotonicNowNanos();
+              call.responseTimestampNanos = Time.monotonicNowNanos();
               
               incPending();
               try {


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