Xu Cang created YARN-10516: ------------------------------ Summary: In HA mode, when one Resource Manager has networking issue, getTokenService() should not throw runtime exception Key: YARN-10516 URL: https://issues.apache.org/jira/browse/YARN-10516 Project: Hadoop YARN Issue Type: Improvement Components: client Reporter: Xu Cang
We have observed one issue from YARN client around this piece of code: [https://github.com/apache/hadoop/blob/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/client/ClientRMProxy.java#L145] While {code:java} services.add(SecurityUtil.buildTokenService( yarnConf.getSocketAddr(address, defaultAddr, defaultPort)) .toString()); {code} Is being called, "yarnConf.getSocketAddr" will throw runtime exception, more specifically, UnknownHostException from here: [https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/SecurityUtil.java#L466] while one of the RM host was having networking issue that IP cannot be resolved. This runtime exception then floats all the way into our application and cause MR job submission failed. In my opinion, since we have HA here, multiple RMs are still alive and available. We should catch this exception in getTokenService() and handle it properly. Would like to hear your opinion on this, if agreed, I will provide a patch on this. Thank you. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org