[ https://issues.apache.org/jira/browse/HADOOP-10545?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brandon Li resolved HADOOP-10545. --------------------------------- Resolution: Duplicate > hdfs zkfc NullPointerException > ------------------------------ > > Key: HADOOP-10545 > URL: https://issues.apache.org/jira/browse/HADOOP-10545 > Project: Hadoop Common > Issue Type: Bug > Affects Versions: 2.4.0 > Environment: Linux > Reporter: Sebastien Barrier > Priority: Minor > > Running hdfs zkfc on a node which is not a Namenode result of > NullPointerException. > An error message should be displayed telling that zkfc must be run only on a > Namenode server and/or to verify configuration parameters. > # hdfs zkfc -formatZK > Exception in thread "main" java.lang.NullPointerException > at > com.google.common.base.Preconditions.checkNotNull(Preconditions.java:187) > at > org.apache.hadoop.hdfs.tools.NNHAServiceTarget.<init>(NNHAServiceTarget.java:57) > at > org.apache.hadoop.hdfs.tools.DFSZKFailoverController.create(DFSZKFailoverController.java:128) > at > org.apache.hadoop.hdfs.tools.DFSZKFailoverController.main(DFSZKFailoverController.java:172) -- This message was sent by Atlassian JIRA (v6.2#6252)