From 4ad295a4f1c202f08e40a57f31c1dc1ade96a4ca Mon Sep 17 00:00:00 2001
From: Konstantin V Shvachko <shv@apache.org>
Date: Mon, 11 Mar 2019 13:48:06 -0700
Subject: [PATCH] HDFS-14270.[SBN Read] Add trace level logging for stateId in
 RPC Server. Contributed by Shweta Yakkali.

---
 .../src/main/java/org/apache/hadoop/ipc/Server.java             | 2 ++
 1 file changed, 2 insertions(+)

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 23c6351dbf..62e81bccbe 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
@@ -2594,6 +2594,8 @@ private void processRpcRequest(RpcRequestHeaderProto header,
             stateId = alignmentContext.receiveRequestState(
                 header, getMaxIdleTime());
             call.setClientStateId(stateId);
+            LOG.trace("Client State ID= {} and Server State ID= {}",
+                call.getClientStateId(), alignmentContext.getLastSeenStateId());
           }
         } catch (IOException ioe) {
           throw new RpcServerException("Processing RPC request caught ", ioe);