[ https://issues.apache.org/jira/browse/YARN-10021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
kyungwan nam reassigned YARN-10021: ----------------------------------- Attachment: YARN-10021.001.patch Assignee: kyungwan nam > NPE in YARN Registry DNS when wrong DNS message is incoming > ----------------------------------------------------------- > > Key: YARN-10021 > URL: https://issues.apache.org/jira/browse/YARN-10021 > Project: Hadoop YARN > Issue Type: Bug > Reporter: kyungwan nam > Assignee: kyungwan nam > Priority: Major > Attachments: YARN-10021.001.patch > > > I’ve met NPE in YARN Registry DNS as below. > It looks like this happens if the incoming DNS request is the wrong format. > {code:java} > 2019-11-29 10:51:12,178 ERROR dns.RegistryDNS (RegistryDNS.java:call(932)) - > Error initializing DNS UDP listener > java.lang.NullPointerException > at java.nio.ByteBuffer.put(ByteBuffer.java:859) > at > org.apache.hadoop.registry.server.dns.RegistryDNS.serveNIOUDP(RegistryDNS.java:983) > at > org.apache.hadoop.registry.server.dns.RegistryDNS.access$100(RegistryDNS.java:121) > at > org.apache.hadoop.registry.server.dns.RegistryDNS$5.call(RegistryDNS.java:930) > at > org.apache.hadoop.registry.server.dns.RegistryDNS$5.call(RegistryDNS.java:926) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > 2019-11-29 10:51:12,180 WARN concurrent.ExecutorHelper > (ExecutorHelper.java:logThrowableFromAfterExecute(50)) - Execution exception > when running task in RegistryDNS 1 > 2019-11-29 10:51:12,180 WARN concurrent.ExecutorHelper > (ExecutorHelper.java:logThrowableFromAfterExecute(63)) - Caught exception in > thread RegistryDNS 1: > java.lang.NullPointerException > at java.nio.ByteBuffer.put(ByteBuffer.java:859) > at > org.apache.hadoop.registry.server.dns.RegistryDNS.serveNIOUDP(RegistryDNS.java:983) > at > org.apache.hadoop.registry.server.dns.RegistryDNS.access$100(RegistryDNS.java:121) > at > org.apache.hadoop.registry.server.dns.RegistryDNS$5.call(RegistryDNS.java:930) > at > org.apache.hadoop.registry.server.dns.RegistryDNS$5.call(RegistryDNS.java:926) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > {code} -- 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