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YARN-2992. ZKRMStateStore crashes due to session expiry. Contributed by Karthik Kambatla 

(cherry picked from commit 1454efe5d4)

(cherry picked from commit ca0349b87a)
(cherry picked from commit 2f6be218fa41fd0f39633ec5ed0df6e0fa0f54b6)
This commit is contained in:
Jian He 2014-12-26 17:59:58 -08:00 committed by Vinod Kumar Vavilapalli
parent 8cdcb792a1
commit e7fc071906
2 changed files with 6 additions and 0 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -57,6 +57,9 @@ Release 2.6.1 - UNRELEASED
YARN-2340. Fixed NPE when queue is stopped during RM restart.
(Rohith Sharmaks via jianhe)
YARN-2992. ZKRMStateStore crashes due to session expiry. (Karthik Kambatla
via jianhe)
Release 2.6.0 - 2014-11-18
INCOMPATIBLE CHANGES

3
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/recovery/ZKRMStateStore.java
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@ -1081,6 +1081,8 @@ public class ZKRMStateStore extends RMStateStore {
switch (code) {
case CONNECTIONLOSS:
case OPERATIONTIMEOUT:
case SESSIONEXPIRED:
case SESSIONMOVED:
return true;
default:
break;
@ -1109,6 +1111,7 @@ public class ZKRMStateStore extends RMStateStore {
if (shouldRetry(ke.code()) && ++retry < numRetries) {
LOG.info("Retrying operation on ZK. Retry no. " + retry);
Thread.sleep(zkRetryInterval);
createConnection();
continue;
}
LOG.info("Maxed out ZK retries. Giving up!");