How did you enable it? Going by the line numbers of the stacktrace, it is very unlikely to have a npe there. Did you see anything suspicious in the rs-logs on enabling it? Can you pastebin more rs logs when you enable it.
Himanshu On Tue, Mar 26, 2013 at 9:57 AM, Jeff Whiting <[email protected]> wrote: > We are seeing a lot of these NPE once we enabled replication. > > HBase Version: > 0.92.1-cdh4.0.1 > > 2013-03-25 15:29:25,027 ERROR org.apache.hadoop.hbase.master.LogCleaner: > Caught exception > java.lang.NullPointerException > at > org.apache.hadoop.hbase.replication.ReplicationZookeeper.getListOfReplicators(ReplicationZookeeper.java:503) > at > org.apache.hadoop.hbase.replication.master.ReplicationLogCleaner.refreshHLogsAndSearch(ReplicationLogCleaner.java:96) > at > org.apache.hadoop.hbase.replication.master.ReplicationLogCleaner.isLogDeletable(ReplicationLogCleaner.java:83) > at org.apache.hadoop.hbase.master.LogCleaner.chore(LogCleaner.java:133) > at org.apache.hadoop.hbase.Chore.run(Chore.java:67) > at org.apache.hadoop.hbase.master.LogCleaner.run(LogCleaner.java:155) > at java.lang.Thread.run(Thread.java:662) > > Any ideas as to what is going on? Seems like we should never be getting a > NPE. > > ~Jeff > > > -- > Jeff Whiting > Qualtrics Senior Software Engineer > [email protected]
