I have seen the similar log in someone's blog and it's based on 0.94.20. The CatalogTracker seems to be initialized for many times.
> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@69d892a1 On Thu, Sep 18, 2014 at 4:50 PM, tobe <[email protected]> wrote: > > I have found that our RegionServers connect to the ZooKeeper frequently. > They seems to constantly establish the session, close it and reconnect the > ZooKeeper. Here is the log for both server and client sides. I have no idea > why this happens and how to deal with it? We're using HBase 0.94.11 and > ZooKeeper 3.4.4. > > The log from HBase RegionServer: > > 2014-09-18,16:38:17,867 INFO org.apache.zookeeper.ZooKeeper: Initiating > client connection, connectString=10.2.201.74:11000,10.2.201.73:11000, > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000 > sessionTimeout=30000 > watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@69d892a1 > 2014-09-18,16:38:17,868 INFO > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI as > SASL mechanism. > 2014-09-18,16:38:17,868 INFO org.apache.zookeeper.ClientCnxn: Opening > socket connection to server lg-hadoop-srv-ct01.bj/10.2.201.73:11000. Will > attempt to SASL-authenticate using Login Context section 'Client' > 2014-09-18,16:38:17,868 INFO > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of > this process is [email protected] > 2014-09-18,16:38:17,868 INFO org.apache.zookeeper.ClientCnxn: Socket > connection established to lg-hadoop-srv-ct01.bj/10.2.201.73:11000, > initiating session > 2014-09-18,16:38:17,870 INFO org.apache.zookeeper.ClientCnxn: Session > establishment complete on server lg-hadoop-srv-ct01.bj/10.2.201.73:11000, > sessionid = 0x248782700e52b3c, negotiated timeout = 30000 > 2014-09-18,16:38:17,876 INFO org.apache.zookeeper.ZooKeeper: Session: > 0x248782700e52b3c closed > 2014-09-18,16:38:17,876 INFO org.apache.zookeeper.ClientCnxn: EventThread > shut down > 2014-09-18,16:38:17,878 INFO > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: Total > replicated: 24 > > The log from its ZooKeeper server: > > 2014-09-18,16:38:17,869 INFO > org.apache.zookeeper.server.NIOServerCnxnFactory: [myid:2] Accepted socket > connection from /10.2.201.76:55621 > 2014-09-18,16:38:17,869 INFO org.apache.zookeeper.server.ZooKeeperServer: > [myid:2] Client attempting to establish new session at /10.2.201.76:55621 > 2014-09-18,16:38:17,870 INFO org.apache.zookeeper.server.ZooKeeperServer: > [myid:2] Established session 0x248782700e52b3c with negotiated timeout > 30000 for client /10.2.201.76:55621 > 2014-09-18,16:38:17,872 INFO > org.apache.zookeeper.server.auth.SaslServerCallbackHandler: [myid:2] > Successfully authenticated client: > authenticationID=hbase_srv/[email protected]; > authorizationID=hbase_srv/[email protected]. > 2014-09-18,16:38:17,872 INFO > org.apache.zookeeper.server.auth.SaslServerCallbackHandler: [myid:2] > Setting authorizedID: hbase_srv > 2014-09-18,16:38:17,872 INFO org.apache.zookeeper.server.ZooKeeperServer: > [myid:2] adding SASL authorization for authorizationID: hbase_srv > 2014-09-18,16:38:17,877 INFO org.apache.zookeeper.server.NIOServerCnxn: > [myid:2] Closed socket connection for client /10.2.201.76:55621 which had > sessionid 0x248782700e52b3c > >
