Here is related code: List<String> replicators = queues.getListOfReplicators();
for (String replicator: replicators) { replicators seems to be null. Can you log a JIRA (and attach redacted log if possible) ? Cheers On Thu, Jul 6, 2017 at 5:10 PM, Kang Minwoo <minwoo.k...@outlook.com> wrote: > I am using 1.2.5 (revision=d7b05f79dee10e0ada614765bb354b93d615a157) > > Yes, I see NPE repeatedly. > This occurs every minute. > > Should I fix it? > > Best regards, > Minwoo Kang > > ________________________________________ > 보낸 사람: Kang Minwoo <minwoo.k...@outlook.com> > 보낸 날짜: 2017년 7월 6일 목요일 오전 9:29:35 > 받는 사람: user@hbase.apache.org > 제목: NPE in ReplicationZKLockCleanerChore > > Hello, HBase Users. > > While I am watching HMaster log, I found NullPointerException Logs. > > -------- > > 2017-07-06 09:05:02,579 DEBUG [,1498445640728_ChoreService_1] > cleaner.CleanerChore: Removing: hdfs://*** from archive > 2017-07-06 09:05:02,585 ERROR [,1498445640728_ChoreService_2] > hbase.ScheduledChore: Caught error > java.lang.NullPointerException > at org.apache.hadoop.hbase.master.cleaner. > ReplicationZKLockCleanerChore.chore(ReplicationZKLockCleanerChore.java:80) > at org.apache.hadoop.hbase.ScheduledChore.run( > ScheduledChore.java:185) > at java.util.concurrent.Executors$RunnableAdapter. > call(Executors.java:471) > at java.util.concurrent.FutureTask.runAndReset( > FutureTask.java:304) > at java.util.concurrent.ScheduledThreadPoolExecutor$ > ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) > at java.util.concurrent.ScheduledThreadPoolExecutor$ > ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) > at org.apache.hadoop.hbase.JitterScheduledThreadPoolExecutorImpl$ > JitteredRunnableScheduledFuture.run(JitterScheduledThreadPoolExecu > torImpl.java:110) > at java.util.concurrent.ThreadPoolExecutor.runWorker( > ThreadPoolExecutor.java:1145) > at java.util.concurrent.ThreadPoolExecutor$Worker.run( > ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > 2017-07-06 09:05:02,585 DEBUG [,1498445640728_ChoreService_1] > cleaner.CleanerChore: Removing: hdfs://*** from archive > 2017-07-06 09:05:02,586 DEBUG [,1498445640728_ChoreService_1] > cleaner.CleanerChore: Removing: hdfs://*** from archive > > -------- > > I wonder what side effects this error gives HBase. > > Best regards, > Minwoo Kang >