1. Whenever my computer goes to sleep mode(Mac lion OS X) it stops HMaster.However all map reduce related not remain active.
739 JobTracker 585 DataNode 675 SecondaryNameNode 496 NameNode 5991 Jps 826 TaskTracker Is this expected behaviour? 2. Even HMaster is not running when I tried to check the status - instead of giving appropriate error it gives ERROR: org.apache.hadoop.hbase.ZooKeeperConnectionException: HBase is able to connect to ZooKeeper but the connection closes immediately. This could be a sign that the server has too many connections (30 is the default). Consider inspecting your ZK server logs for that error and then make sure you are reusing HBaseConfiguration as often as you can. See HTable's javadoc for more information. -Jignesh
