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stack commented on HBASE-9563: ------------------------------ Just ran into this. Looks like this. {code} 24 2013-10-07 05:07:00,009 INFO [main] zookeeper.ZooKeeper: Client environment:java.compiler=<NA> 23 2013-10-07 05:07:00,009 INFO [main] zookeeper.ZooKeeper: Client environment:os.name=Linux 22 2013-10-07 05:07:00,009 INFO [main] zookeeper.ZooKeeper: Client environment:os.arch=amd64 21 2013-10-07 05:07:00,009 INFO [main] zookeeper.ZooKeeper: Client environment:os.version=3.2.0-43-generic 20 2013-10-07 05:07:00,010 INFO [main] zookeeper.ZooKeeper: Client environment:user.name=hbase 19 2013-10-07 05:07:00,010 INFO [main] zookeeper.ZooKeeper: Client environment:user.home=/home/hbase 18 2013-10-07 05:07:00,010 INFO [main] zookeeper.ZooKeeper: Client environment:user.dir=/home/hbase 17 2013-10-07 05:07:00,011 INFO [main] zookeeper.ZooKeeper: Initiating client connection, connectString=a1805.halxg.cloudera.com:2181 sessionTimeout=90000 watcher=clean znode for master 16 2013-10-07 05:07:00,042 INFO [main] zookeeper.RecoverableZooKeeper: Process identifier=clean znode for master connecting to ZooKeeper ensemble=a1805.halxg.cloudera.com:2181 15 2013-10-07 05:07:00,043 WARN [main] hbase.ZNodeClearer: Can't read the content of the znode file 14 java.io.FileNotFoundException: /tmp/hbase-hbase-master.znode (No such file or directory) 13 ,...at java.io.FileInputStream.open(Native Method) 12 ,...at java.io.FileInputStream.<init>(FileInputStream.java:138) 11 ,...at java.io.FileInputStream.<init>(FileInputStream.java:97) 10 ,...at java.io.FileReader.<init>(FileReader.java:58) 9 ,...at org.apache.hadoop.hbase.ZNodeClearer.readMyEphemeralNodeOnDisk(ZNodeClearer.java:95) 8 ,...at org.apache.hadoop.hbase.ZNodeClearer.clear(ZNodeClearer.java:143) 7 ,...at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:138) 6 ,...at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70) 5 ,...at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:126) 4 ,...at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:2787) 3 2013-10-07 05:07:00,046 INFO [main-SendThread(a1805.halxg.cloudera.com:2181)] zookeeper.ClientCnxn: Opening socket connection to server a1805.halxg.cloudera.com/10.20.200.105:2181. Will not attempt to authenticate using SASL (unknown error) 2 Mon Oct 7 10:54:01 PDT 2013 Starting master on a1805.halxg.cloudera.com 1 core file size (blocks, -c) 0 0 data seg size (kbytes, -d) unlimited 1 scheduling priority (-e) 0 2 file size (blocks, -f) unlimited 3 pending signals (-i) 386225 4 max locked memory (kbytes, -l) 64 5 max memory size (kbytes, -m) unlimited {code} > Autorestart doesn't work if zkcleaner fails > ------------------------------------------- > > Key: HBASE-9563 > URL: https://issues.apache.org/jira/browse/HBASE-9563 > Project: HBase > Issue Type: Bug > Reporter: Elliott Clark > > I've seen this several times where a master didn't autorestart because zk > cleaner failed. We should still restart the daemon even if it's not possible > to clean the zk nodes. -- This message was sent by Atlassian JIRA (v6.1#6144)