ZooKeeper nie powiódł się po 3 próbach
Używam Hadoop-1.2.1 i HBase-0.94.11 w trybie pseudo-rozproszonym.
Z powodu awarii zasilania Hadoop i konfiguracja HBase spadły. Następnym razem, gdy ponownie uruchomiłem komputer i skonfigurowałem pseudo-dystrybucję, HBase przestał działać z następującymi błędami na powłoce HBase:
13/11/27 13:53:27 ERROR zookeeper.RecoverableZooKeeper: ZooKeeper exists failed after 3 retries
13/11/27 13:53:27 WARN zookeeper.ZKUtil: hconnection Unable to set watcher on znode (/hbase/hbaseid)
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1041)
at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:172)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:450)
at org.apache.hadoop.hbase.zookeeper.ClusterId.readClusterIdZNode(ClusterId.java:61)
at org.apache.hadoop.hbase.zookeeper.ClusterId.getId(ClusterId.java:50)
at org.apache.hadoop.hbase.zookeeper.ClusterId.hasId(ClusterId.java:44)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.ensureZookeeperTrackers(HConnectionManager.java:720)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:789)
at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:129)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
Oto procesy:
hduser@user-ubuntu:~$ jps
16914 NameNode
19955 Jps
29460 Main
17728 TaskTracker
19776 HMaster
17490 JobTracker
17392 SecondaryNameNode