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From tobe <tobeg3oo...@gmail.com>
Subject Re: HBase establishes session with ZooKeeper and close the session immediately
Date Mon, 22 Sep 2014 11:41:30 GMT
@qiang I have read about this issue. Is it
https://issues.apache.org/jira/browse/HBASE-4495?

I look deep in to code and can't find the reason of this. Any suggestion is
welcome.

On Mon, Sep 22, 2014 at 6:22 PM, Qiang Tian <tianq01@gmail.com> wrote:

> it looks coming from
>
> http://grepcode.com/file/repo1.maven.org/maven2/org.apache.hbase/hbase/0.94.19/org/apache/hadoop/hbase/catalog/CatalogTracker.java#186
>
> if no zookeeper watcher passed in, we will connect to zk...this logic
> mostly used in client side(getCatalogTracker), so it looks some server side
> code use it as well.. I recall Mikhail has a jira to remove catalog
> tracker(forgot jira number...)
>
>
>
> On Sat, Sep 20, 2014 at 7:38 PM, tobe <tobeg3oogle@gmail.com> wrote:
>
> > Here's the detailed log and you can see it establishes a few sessions for
> > every seconds. It doesn't happen in other clusters but you can see the
> > similar log in https://issues.apache.org/jira/browse/HBASE-9779. The
> HBase
> > version is 0.9.3 so it print ReplicationSink status as INFO and the later
> > version will set it as DEBUG.
> >
> > 2014-09-20,17:34:50,953 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$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:50,954 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:50,954 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:50,954 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-com-master02.bj/10.101.10.67:11000. Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:50,954 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-com-master02.bj/10.101.10.67:11000,
> > initiating
> > session
> > 2014-09-20,17:34:50,956 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-com-master02.bj/10.101.10.67:11000,
> > sessionid = 0x14877bf55307a85, negotiated timeout = 30000
> > 2014-09-20,17:34:50,962 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x14877bf55307a85 closed
> > 2014-09-20,17:34:50,962 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:50,963 INFO
> > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: Total
> > replicated: 9
> > 2014-09-20,17:34:50,984 INFO org.apache.zookeeper.ZooKeeper: Initiating
> > client connection, connectString=10.2.201.74:11000,10.2.201.73:11000,
> > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000
> > sessionTimeout=30000
> >
> >
> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:50,985 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:50,985 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:50,985 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-com-master02.bj/10.101.10.67:11000. Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:50,985 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-com-master02.bj/10.101.10.67:11000,
> > initiating
> > session
> > 2014-09-20,17:34:50,987 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-com-master02.bj/10.101.10.67:11000,
> > sessionid = 0x14877bf55307a87, negotiated timeout = 30000
> > 2014-09-20,17:34:50,993 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x14877bf55307a87 closed
> > 2014-09-20,17:34:50,993 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:50,995 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$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:50,995 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:50,995 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:50,995 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-com-master02.bj/10.101.10.67:11000. Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:50,996 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-com-master02.bj/10.101.10.67:11000,
> > initiating
> > session
> > 2014-09-20,17:34:50,997 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-com-master02.bj/10.101.10.67:11000,
> > sessionid = 0x14877bf55307a88, negotiated timeout = 30000
> > 2014-09-20,17:34:51,003 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x14877bf55307a88 closed
> > 2014-09-20,17:34:51,003 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,004 INFO org.apache.zookeeper.ZooKeeper: Initiating
> > client connection, connectString=10.2.201.74:11000,10.2.201.73:11000,
> > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000
> > sessionTimeout=30000
> >
> >
> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,004 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,004 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,005 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-hadoop-srv-ct03.bj/10.2.201.75:11000.
> Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,005 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct03.bj/10.2.201.75:11000,
> > initiating session
> > 2014-09-20,17:34:51,006 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct03.bj/10.2.201.75:11000
> ,
> > sessionid = 0x44877d1f0dfc467, negotiated timeout = 30000
> > 2014-09-20,17:34:51,011 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x44877d1f0dfc467 closed
> > 2014-09-20,17:34:51,011 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,013 INFO
> > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: Total
> > replicated: 16
> > 2014-09-20,17:34:51,048 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$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,048 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,048 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,048 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-hadoop-srv-ct01.bj/10.2.201.73:11000.
> Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,049 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct01.bj/10.2.201.73:11000,
> > initiating session
> > 2014-09-20,17:34:51,050 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct01.bj/10.2.201.73:11000
> ,
> > sessionid = 0x24878270100902a, negotiated timeout = 30000
> > 2014-09-20,17:34:51,056 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x24878270100902a closed
> > 2014-09-20,17:34:51,056 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,058 INFO org.apache.zookeeper.ZooKeeper: Initiating
> > client connection, connectString=10.2.201.74:11000,10.2.201.73:11000,
> > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000
> > sessionTimeout=30000
> >
> >
> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,058 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,058 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,058 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-com-master02.bj/10.101.10.67:11000. Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,059 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-com-master02.bj/10.101.10.67:11000,
> > initiating
> > session
> > 2014-09-20,17:34:51,060 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-com-master02.bj/10.101.10.67:11000,
> > sessionid = 0x14877bf55307a8b, negotiated timeout = 30000
> > 2014-09-20,17:34:51,066 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x14877bf55307a8b closed
> > 2014-09-20,17:34:51,066 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,068 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$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,068 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,068 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,068 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-hadoop-srv-ct02.bj/10.2.201.74:11000.
> Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,069 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct02.bj/10.2.201.74:11000,
> > initiating session
> > 2014-09-20,17:34:51,070 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct02.bj/10.2.201.74:11000
> ,
> > sessionid = 0x34877bf55f10496, negotiated timeout = 30000
> > 2014-09-20,17:34:51,075 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x34877bf55f10496 closed
> > 2014-09-20,17:34:51,075 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,076 INFO
> > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: Total
> > replicated: 12
> > 2014-09-20,17:34:51,085 INFO org.apache.zookeeper.ZooKeeper: Initiating
> > client connection, connectString=10.2.201.74:11000,10.2.201.73:11000,
> > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000
> > sessionTimeout=30000
> >
> >
> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,086 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,086 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,086 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-hadoop-srv-ct03.bj/10.2.201.75:11000.
> Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,086 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct03.bj/10.2.201.75:11000,
> > initiating session
> > 2014-09-20,17:34:51,087 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct03.bj/10.2.201.75:11000
> ,
> > sessionid = 0x44877d1f0dfc469, negotiated timeout = 30000
> > 2014-09-20,17:34:51,093 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x44877d1f0dfc469 closed
> > 2014-09-20,17:34:51,093 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,095 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$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,095 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,095 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,095 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-hadoop-srv-ct02.bj/10.2.201.74:11000.
> Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,096 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct02.bj/10.2.201.74:11000,
> > initiating session
> > 2014-09-20,17:34:51,097 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct02.bj/10.2.201.74:11000
> ,
> > sessionid = 0x34877bf55f10497, negotiated timeout = 30000
> > 2014-09-20,17:34:51,103 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x34877bf55f10497 closed
> > 2014-09-20,17:34:51,103 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,105 INFO org.apache.zookeeper.ZooKeeper: Initiating
> > client connection, connectString=10.2.201.74:11000,10.2.201.73:11000,
> > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000
> > sessionTimeout=30000
> >
> >
> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,105 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,105 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,106 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-hadoop-srv-ct02.bj/10.2.201.74:11000.
> Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,106 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct02.bj/10.2.201.74:11000,
> > initiating session
> > 2014-09-20,17:34:51,107 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct02.bj/10.2.201.74:11000
> ,
> > sessionid = 0x34877bf55f10498, negotiated timeout = 30000
> > 2014-09-20,17:34:51,112 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x34877bf55f10498 closed
> > 2014-09-20,17:34:51,112 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,115 INFO
> > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: Total
> > replicated: 14
> > 2014-09-20,17:34:51,168 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$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,168 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,168 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,168 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-hadoop-srv-ct03.bj/10.2.201.75:11000.
> Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,169 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct03.bj/10.2.201.75:11000,
> > initiating session
> > 2014-09-20,17:34:51,170 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct03.bj/10.2.201.75:11000
> ,
> > sessionid = 0x44877d1f0dfc46d, negotiated timeout = 30000
> > 2014-09-20,17:34:51,175 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,175 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x44877d1f0dfc46d closed
> > 2014-09-20,17:34:51,177 INFO org.apache.zookeeper.ZooKeeper: Initiating
> > client connection, connectString=10.2.201.74:11000,10.2.201.73:11000,
> > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000
> > sessionTimeout=30000
> >
> >
> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,177 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,177 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,177 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-hadoop-srv-ct03.bj/10.2.201.75:11000.
> Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,177 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct03.bj/10.2.201.75:11000,
> > initiating session
> > 2014-09-20,17:34:51,179 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct03.bj/10.2.201.75:11000
> ,
> > sessionid = 0x44877d1f0dfc46e, negotiated timeout = 30000
> > 2014-09-20,17:34:51,184 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x44877d1f0dfc46e closed
> > 2014-09-20,17:34:51,184 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,185 INFO
> > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: Total
> > replicated: 2
> > 2014-09-20,17:34:51,203 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$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,204 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,204 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,204 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-hadoop-srv-ct02.bj/10.2.201.74:11000.
> Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,204 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct02.bj/10.2.201.74:11000,
> > initiating session
> > 2014-09-20,17:34:51,205 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct02.bj/10.2.201.74:11000
> ,
> > sessionid = 0x34877bf55f1049c, negotiated timeout = 30000
> > 2014-09-20,17:34:51,211 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x34877bf55f1049c closed
> > 2014-09-20,17:34:51,211 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,213 INFO org.apache.zookeeper.ZooKeeper: Initiating
> > client connection, connectString=10.2.201.74:11000,10.2.201.73:11000,
> > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000
> > sessionTimeout=30000
> >
> >
> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,213 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,213 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,213 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'
> > 2014-09-20,17:34:51,214 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct01.bj/10.2.201.73:11000,
> > initiating session
> > 2014-09-20,17:34:51,215 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct01.bj/10.2.201.73:11000
> ,
> > sessionid = 0x24878270100902c, negotiated timeout = 30000
> > 2014-09-20,17:34:51,221 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x24878270100902c closed
> > 2014-09-20,17:34:51,221 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,224 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$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,224 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,224 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,224 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-hadoop-srv-ct03.bj/10.2.201.75:11000.
> Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,225 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-hadoop-srv-ct03.bj/10.2.201.75:11000,
> > initiating session
> > 2014-09-20,17:34:51,226 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-hadoop-srv-ct03.bj/10.2.201.75:11000
> ,
> > sessionid = 0x44877d1f0dfc46f, negotiated timeout = 30000
> > 2014-09-20,17:34:51,232 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x44877d1f0dfc46f closed
> > 2014-09-20,17:34:51,232 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,233 INFO
> > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: Total
> > replicated: 16
> > 2014-09-20,17:34:51,362 INFO org.apache.zookeeper.ZooKeeper: Initiating
> > client connection, connectString=10.2.201.74:11000,10.2.201.73:11000,
> > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000
> > sessionTimeout=30000
> >
> >
> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,362 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,362 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,363 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-com-master01.bj/10.101.10.66:11000. Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,363 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-com-master01.bj/10.101.10.66:11000,
> > initiating
> > session
> > 2014-09-20,17:34:51,364 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-com-master01.bj/10.101.10.66:11000,
> > sessionid = 0x4877f561587a09, negotiated timeout = 30000
> > 2014-09-20,17:34:51,370 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x4877f561587a09 closed
> > 2014-09-20,17:34:51,370 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,371 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$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,371 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,372 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,372 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-com-master01.bj/10.101.10.66:11000. Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,372 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-com-master01.bj/10.101.10.66:11000,
> > initiating
> > session
> > 2014-09-20,17:34:51,373 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-com-master01.bj/10.101.10.66:11000,
> > sessionid = 0x4877f561587a0b, negotiated timeout = 30000
> > 2014-09-20,17:34:51,380 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x4877f561587a0b closed
> > 2014-09-20,17:34:51,380 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,382 INFO org.apache.zookeeper.ZooKeeper: Initiating
> > client connection, connectString=10.2.201.74:11000,10.2.201.73:11000,
> > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000
> > sessionTimeout=30000
> >
> >
> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e
> > 2014-09-20,17:34:51,382 INFO
> > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The identifier of
> > this process is 4926@lg-hadoop-srv-st02.bj
> > 2014-09-20,17:34:51,382 INFO
> > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use GSSAPI
> as
> > SASL mechanism.
> > 2014-09-20,17:34:51,382 INFO org.apache.zookeeper.ClientCnxn: Opening
> > socket connection to server lg-com-master01.bj/10.101.10.66:11000. Will
> > attempt to SASL-authenticate using Login Context section 'Client'
> > 2014-09-20,17:34:51,383 INFO org.apache.zookeeper.ClientCnxn: Socket
> > connection established to lg-com-master01.bj/10.101.10.66:11000,
> > initiating
> > session
> > 2014-09-20,17:34:51,384 INFO org.apache.zookeeper.ClientCnxn: Session
> > establishment complete on server lg-com-master01.bj/10.101.10.66:11000,
> > sessionid = 0x4877f561587a0c, negotiated timeout = 30000
> > 2014-09-20,17:34:51,390 INFO org.apache.zookeeper.ZooKeeper: Session:
> > 0x4877f561587a0c closed
> > 2014-09-20,17:34:51,390 INFO org.apache.zookeeper.ClientCnxn: EventThread
> > shut down
> > 2014-09-20,17:34:51,391 INFO
> > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: Total
> > replicated: 3
> >
> >
> > On Sat, Sep 20, 2014 at 1:44 PM, lars hofhansl <larsh@apache.org> wrote:
> >
> > > Hi,
> > >
> > > can you define "frequently"?
> > > I.e. send a larger snippet of the log. Connecting every few minutes
> would
> > > OK, Multiple times per second would be strange.
> > >
> > > -- Lars
> > >
> > >
> > >
> > > ________________________________
> > >  From: tobe <tobeg3oogle@gmail.com>
> > > To: "user@hbase.apache.org" <user@hbase.apache.org>
> > > Sent: Thursday, September 18, 2014 1:50 AM
> > > Subject: HBase establishes session with ZooKeeper and close the session
> > > immediately
> > >
> > >
> > > 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 11787@lg-hadoop-srv-st05.bj
> > > 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/hadoop@XIAOMI.HADOOP;
> > > authorizationID=hbase_srv/hadoop@XIAOMI.HADOOP.
> > > 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
> > >
> >
>

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