It seems to be related to replication. When I disable the replication from the other clusters, the problem doesn't occur again. And I print the DEBUG log to find some abnormal result. I don't think we should get the response of "value=-2209236057317107828" when scan the META table.
2014-09-23,14:57:59,126 DEBUG org.apache.hadoop.hbase.client.ClientScanner: Creating scanner over .META. starting at key 'online_miliao_message,,' 2014-09-23,14:57:59,126 DEBUG org.apache.hadoop.hbase.client.ClientScanner: Advancing internal scanner to startKey at 'online_miliao_message,,' 2014-09-23,14:57:59,126 DEBUG org.apache.hadoop.ipc.HBaseClient: IPC Client (847446306) connection to lg-hadoop-srv-st04.bj/10.2.201.77:13600 from hbase_srv/[email protected] sending #208 2014-09-23,14:57:59,126 DEBUG org.apache.hadoop.ipc.SecureClient: IPC Client (847446306) connection to lg-hadoop-srv-st04.bj/10.2.201.77:13600 from hbase_srv/[email protected] got value #208 2014-09-23,14:57:59,126 DEBUG org.apache.hadoop.ipc.SecureClient: call #208 state is 0 2014-09-23,14:57:59,126 DEBUG org.apache.hadoop.ipc.SecureClient: call #208, response is: OW[class=long,value=-2209236057317107828] 2014-09-23,14:57:59,126 DEBUG org.apache.hadoop.ipc.SecureRpcEngine: Call: openScanner 0 2014-09-23,14:57:59,126 DEBUG org.apache.hadoop.ipc.HBaseClient: IPC Client (847446306) connection to lg-hadoop-srv-st04.bj/10.2.201.77:13600 from hbase_srv/[email protected] sending #209 2014-09-23,14:57:59,128 DEBUG org.apache.hadoop.hbase.security.HBaseSaslRpcServer: SASL server GSSAPI callback: setting canonicalized client ID: hbase_srv/[email protected] 2014-09-23,14:57:59,128 DEBUG org.apache.hadoop.hbase.ipc.SecureServer: SASL server context established. Negotiated QoP is auth 2014-09-23,14:57:59,128 DEBUG org.apache.hadoop.hbase.ipc.SecureServer: SASL server successfully authenticated client: hbase_srv/[email protected] (auth:SIMPLE) 2014-09-23,14:57:59,128 DEBUG org.apache.hadoop.ipc.SecureClient: IPC Client (847446306) connection to lg-hadoop-srv-st04.bj/10.2.201.77:13600 from hbase_srv/[email protected] got value #209 2014-09-23,14:57:59,128 DEBUG org.apache.hadoop.ipc.SecureClient: call #209 state is 0 2014-09-23,14:57:59,128 DEBUG org.apache.hadoop.hbase.ipc.SecureServer: Successfully authorized org.apache.hadoop.hbase.ipc.HRegionInterface-hbase_srv/[email protected] (auth:SIMPLE) 2014-09-23,14:57:59,128 DEBUG org.apache.hadoop.ipc.SecureClient: call #209, response is: OW[class=class [Lorg.apache.hadoop.hbase.client.Result;,value=[Lorg.apache.hadoop.hbase.client.Result;@6204904d ] 2014-09-23,14:57:59,128 DEBUG org.apache.hadoop.ipc.SecureRpcEngine: Call: next 2 2014-09-23,14:57:59,129 DEBUG org.apache.hadoop.ipc.HBaseClient: IPC Client (847446306) connection to lg-hadoop-srv-st04.bj/10.2.201.77:13600 from hbase_srv/[email protected] sending #210 2014-09-23,14:57:59,129 DEBUG org.apache.hadoop.ipc.SecureClient: IPC Client (847446306) connection to lg-hadoop-srv-st04.bj/10.2.201.77:13600 from hbase_srv/[email protected] got value #210 2014-09-23,14:57:59,129 DEBUG org.apache.hadoop.ipc.SecureClient: call #210 state is 0 2014-09-23,14:57:59,129 DEBUG org.apache.hadoop.ipc.SecureClient: call #210, response is: OW[class=void,value=null] 2014-09-23,14:57:59,129 DEBUG org.apache.hadoop.ipc.SecureRpcEngine: Call: close 0 On Tue, Sep 23, 2014 at 2:27 PM, tobe <[email protected]> wrote: > I mean I have no idea why the RegionServer has so many log about > establishing and closing session. > > I don't think we have so many clients within every second. This happens > when I restart the server but not for all HBase clusters. > > On Tue, Sep 23, 2014 at 11:57 AM, Qiang Tian <[email protected]> wrote: > >> sorry, what reason do you mean? >> I took a quick look at 0.94.21, it looks only client code paths call >> below >> constructor, so this version looks immune to the problem.. >> >> public CatalogTracker(final Configuration conf) throws IOException { >> this(null, conf, null); >> } >> >> On Mon, Sep 22, 2014 at 7:41 PM, tobe <[email protected]> wrote: >> >> > @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 <[email protected]> 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 <[email protected]> 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$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:50,954 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 2014-09-20,17:34:50,954 INFO >> > > > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use >> GSSAPI >> > > as >> > > > SASL mechanism. >> > > > 2014-09-20,17:34:50,954 INFO org.apache.zookeeper.ClientCnxn: >> Opening >> > > > socket connection to server lg-com-master02.bj/10.101.10.67:11000. >> > Will >> > > > attempt to SASL-authenticate using Login Context section 'Client' >> > > > 2014-09-20,17:34:50,954 INFO org.apache.zookeeper.ClientCnxn: Socket >> > > > connection established to lg-com-master02.bj/10.101.10.67:11000, >> > > > initiating >> > > > session >> > > > 2014-09-20,17:34:50,956 INFO org.apache.zookeeper.ClientCnxn: >> Session >> > > > establishment complete on server >> lg-com-master02.bj/10.101.10.67:11000 >> > , >> > > > sessionid = 0x14877bf55307a85, negotiated timeout = 30000 >> > > > 2014-09-20,17:34:50,962 INFO org.apache.zookeeper.ZooKeeper: >> Session: >> > > > 0x14877bf55307a85 closed >> > > > 2014-09-20,17:34:50,962 INFO org.apache.zookeeper.ClientCnxn: >> > EventThread >> > > > shut down >> > > > 2014-09-20,17:34:50,963 INFO >> > > > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: >> Total >> > > > replicated: 9 >> > > > 2014-09-20,17:34:50,984 INFO org.apache.zookeeper.ZooKeeper: >> Initiating >> > > > client connection, connectString=10.2.201.74:11000, >> 10.2.201.73:11000, >> > > > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000 >> > > > sessionTimeout=30000 >> > > > >> > > > >> > > >> > >> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:50,985 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 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$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:50,995 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 2014-09-20,17:34:50,995 INFO >> > > > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use >> GSSAPI >> > > as >> > > > SASL mechanism. >> > > > 2014-09-20,17:34:50,995 INFO org.apache.zookeeper.ClientCnxn: >> Opening >> > > > socket connection to server lg-com-master02.bj/10.101.10.67:11000. >> > Will >> > > > attempt to SASL-authenticate using Login Context section 'Client' >> > > > 2014-09-20,17:34:50,996 INFO org.apache.zookeeper.ClientCnxn: Socket >> > > > connection established to lg-com-master02.bj/10.101.10.67:11000, >> > > > initiating >> > > > session >> > > > 2014-09-20,17:34:50,997 INFO org.apache.zookeeper.ClientCnxn: >> Session >> > > > establishment complete on server >> lg-com-master02.bj/10.101.10.67:11000 >> > , >> > > > sessionid = 0x14877bf55307a88, negotiated timeout = 30000 >> > > > 2014-09-20,17:34:51,003 INFO org.apache.zookeeper.ZooKeeper: >> Session: >> > > > 0x14877bf55307a88 closed >> > > > 2014-09-20,17:34:51,003 INFO org.apache.zookeeper.ClientCnxn: >> > EventThread >> > > > shut down >> > > > 2014-09-20,17:34:51,004 INFO org.apache.zookeeper.ZooKeeper: >> Initiating >> > > > client connection, connectString=10.2.201.74:11000, >> 10.2.201.73:11000, >> > > > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000 >> > > > sessionTimeout=30000 >> > > > >> > > > >> > > >> > >> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,004 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 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$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,048 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 2014-09-20,17:34:51,048 INFO >> > > > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use >> GSSAPI >> > > as >> > > > SASL mechanism. >> > > > 2014-09-20,17:34:51,048 INFO org.apache.zookeeper.ClientCnxn: >> Opening >> > > > socket connection to server lg-hadoop-srv-ct01.bj/10.2.201.73:11000 >> . >> > > Will >> > > > attempt to SASL-authenticate using Login Context section 'Client' >> > > > 2014-09-20,17:34:51,049 INFO org.apache.zookeeper.ClientCnxn: Socket >> > > > connection established to lg-hadoop-srv-ct01.bj/10.2.201.73:11000, >> > > > initiating session >> > > > 2014-09-20,17:34:51,050 INFO org.apache.zookeeper.ClientCnxn: >> Session >> > > > establishment complete on server >> > lg-hadoop-srv-ct01.bj/10.2.201.73:11000 >> > > , >> > > > sessionid = 0x24878270100902a, negotiated timeout = 30000 >> > > > 2014-09-20,17:34:51,056 INFO org.apache.zookeeper.ZooKeeper: >> Session: >> > > > 0x24878270100902a closed >> > > > 2014-09-20,17:34:51,056 INFO org.apache.zookeeper.ClientCnxn: >> > EventThread >> > > > shut down >> > > > 2014-09-20,17:34:51,058 INFO org.apache.zookeeper.ZooKeeper: >> Initiating >> > > > client connection, connectString=10.2.201.74:11000, >> 10.2.201.73:11000, >> > > > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000 >> > > > sessionTimeout=30000 >> > > > >> > > > >> > > >> > >> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,058 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 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$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,068 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 2014-09-20,17:34:51,068 INFO >> > > > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use >> GSSAPI >> > > as >> > > > SASL mechanism. >> > > > 2014-09-20,17:34:51,068 INFO org.apache.zookeeper.ClientCnxn: >> Opening >> > > > socket connection to server lg-hadoop-srv-ct02.bj/10.2.201.74:11000 >> . >> > > Will >> > > > attempt to SASL-authenticate using Login Context section 'Client' >> > > > 2014-09-20,17:34:51,069 INFO org.apache.zookeeper.ClientCnxn: Socket >> > > > connection established to lg-hadoop-srv-ct02.bj/10.2.201.74:11000, >> > > > initiating session >> > > > 2014-09-20,17:34:51,070 INFO org.apache.zookeeper.ClientCnxn: >> Session >> > > > establishment complete on server >> > lg-hadoop-srv-ct02.bj/10.2.201.74:11000 >> > > , >> > > > sessionid = 0x34877bf55f10496, negotiated timeout = 30000 >> > > > 2014-09-20,17:34:51,075 INFO org.apache.zookeeper.ZooKeeper: >> Session: >> > > > 0x34877bf55f10496 closed >> > > > 2014-09-20,17:34:51,075 INFO org.apache.zookeeper.ClientCnxn: >> > EventThread >> > > > shut down >> > > > 2014-09-20,17:34:51,076 INFO >> > > > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: >> Total >> > > > replicated: 12 >> > > > 2014-09-20,17:34:51,085 INFO org.apache.zookeeper.ZooKeeper: >> Initiating >> > > > client connection, connectString=10.2.201.74:11000, >> 10.2.201.73:11000, >> > > > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000 >> > > > sessionTimeout=30000 >> > > > >> > > > >> > > >> > >> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,086 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 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$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,095 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 2014-09-20,17:34:51,095 INFO >> > > > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use >> GSSAPI >> > > as >> > > > SASL mechanism. >> > > > 2014-09-20,17:34:51,095 INFO org.apache.zookeeper.ClientCnxn: >> Opening >> > > > socket connection to server lg-hadoop-srv-ct02.bj/10.2.201.74:11000 >> . >> > > Will >> > > > attempt to SASL-authenticate using Login Context section 'Client' >> > > > 2014-09-20,17:34:51,096 INFO org.apache.zookeeper.ClientCnxn: Socket >> > > > connection established to lg-hadoop-srv-ct02.bj/10.2.201.74:11000, >> > > > initiating session >> > > > 2014-09-20,17:34:51,097 INFO org.apache.zookeeper.ClientCnxn: >> Session >> > > > establishment complete on server >> > lg-hadoop-srv-ct02.bj/10.2.201.74:11000 >> > > , >> > > > sessionid = 0x34877bf55f10497, negotiated timeout = 30000 >> > > > 2014-09-20,17:34:51,103 INFO org.apache.zookeeper.ZooKeeper: >> Session: >> > > > 0x34877bf55f10497 closed >> > > > 2014-09-20,17:34:51,103 INFO org.apache.zookeeper.ClientCnxn: >> > EventThread >> > > > shut down >> > > > 2014-09-20,17:34:51,105 INFO org.apache.zookeeper.ZooKeeper: >> Initiating >> > > > client connection, connectString=10.2.201.74:11000, >> 10.2.201.73:11000, >> > > > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000 >> > > > sessionTimeout=30000 >> > > > >> > > > >> > > >> > >> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,105 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 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$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,168 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 2014-09-20,17:34:51,168 INFO >> > > > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use >> GSSAPI >> > > as >> > > > SASL mechanism. >> > > > 2014-09-20,17:34:51,168 INFO org.apache.zookeeper.ClientCnxn: >> Opening >> > > > socket connection to server lg-hadoop-srv-ct03.bj/10.2.201.75:11000 >> . >> > > Will >> > > > attempt to SASL-authenticate using Login Context section 'Client' >> > > > 2014-09-20,17:34:51,169 INFO org.apache.zookeeper.ClientCnxn: Socket >> > > > connection established to lg-hadoop-srv-ct03.bj/10.2.201.75:11000, >> > > > initiating session >> > > > 2014-09-20,17:34:51,170 INFO org.apache.zookeeper.ClientCnxn: >> Session >> > > > establishment complete on server >> > lg-hadoop-srv-ct03.bj/10.2.201.75:11000 >> > > , >> > > > sessionid = 0x44877d1f0dfc46d, negotiated timeout = 30000 >> > > > 2014-09-20,17:34:51,175 INFO org.apache.zookeeper.ClientCnxn: >> > EventThread >> > > > shut down >> > > > 2014-09-20,17:34:51,175 INFO org.apache.zookeeper.ZooKeeper: >> Session: >> > > > 0x44877d1f0dfc46d closed >> > > > 2014-09-20,17:34:51,177 INFO org.apache.zookeeper.ZooKeeper: >> Initiating >> > > > client connection, connectString=10.2.201.74:11000, >> 10.2.201.73:11000, >> > > > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000 >> > > > sessionTimeout=30000 >> > > > >> > > > >> > > >> > >> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,177 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 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$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,204 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 2014-09-20,17:34:51,204 INFO >> > > > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use >> GSSAPI >> > > as >> > > > SASL mechanism. >> > > > 2014-09-20,17:34:51,204 INFO org.apache.zookeeper.ClientCnxn: >> Opening >> > > > socket connection to server lg-hadoop-srv-ct02.bj/10.2.201.74:11000 >> . >> > > Will >> > > > attempt to SASL-authenticate using Login Context section 'Client' >> > > > 2014-09-20,17:34:51,204 INFO org.apache.zookeeper.ClientCnxn: Socket >> > > > connection established to lg-hadoop-srv-ct02.bj/10.2.201.74:11000, >> > > > initiating session >> > > > 2014-09-20,17:34:51,205 INFO org.apache.zookeeper.ClientCnxn: >> Session >> > > > establishment complete on server >> > lg-hadoop-srv-ct02.bj/10.2.201.74:11000 >> > > , >> > > > sessionid = 0x34877bf55f1049c, negotiated timeout = 30000 >> > > > 2014-09-20,17:34:51,211 INFO org.apache.zookeeper.ZooKeeper: >> Session: >> > > > 0x34877bf55f1049c closed >> > > > 2014-09-20,17:34:51,211 INFO org.apache.zookeeper.ClientCnxn: >> > EventThread >> > > > shut down >> > > > 2014-09-20,17:34:51,213 INFO org.apache.zookeeper.ZooKeeper: >> Initiating >> > > > client connection, connectString=10.2.201.74:11000, >> 10.2.201.73:11000, >> > > > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000 >> > > > sessionTimeout=30000 >> > > > >> > > > >> > > >> > >> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,213 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 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$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,224 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 2014-09-20,17:34:51,224 INFO >> > > > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use >> GSSAPI >> > > as >> > > > SASL mechanism. >> > > > 2014-09-20,17:34:51,224 INFO org.apache.zookeeper.ClientCnxn: >> Opening >> > > > socket connection to server lg-hadoop-srv-ct03.bj/10.2.201.75:11000 >> . >> > > Will >> > > > attempt to SASL-authenticate using Login Context section 'Client' >> > > > 2014-09-20,17:34:51,225 INFO org.apache.zookeeper.ClientCnxn: Socket >> > > > connection established to lg-hadoop-srv-ct03.bj/10.2.201.75:11000, >> > > > initiating session >> > > > 2014-09-20,17:34:51,226 INFO org.apache.zookeeper.ClientCnxn: >> Session >> > > > establishment complete on server >> > lg-hadoop-srv-ct03.bj/10.2.201.75:11000 >> > > , >> > > > sessionid = 0x44877d1f0dfc46f, negotiated timeout = 30000 >> > > > 2014-09-20,17:34:51,232 INFO org.apache.zookeeper.ZooKeeper: >> Session: >> > > > 0x44877d1f0dfc46f closed >> > > > 2014-09-20,17:34:51,232 INFO org.apache.zookeeper.ClientCnxn: >> > EventThread >> > > > shut down >> > > > 2014-09-20,17:34:51,233 INFO >> > > > org.apache.hadoop.hbase.replication.regionserver.ReplicationSink: >> Total >> > > > replicated: 16 >> > > > 2014-09-20,17:34:51,362 INFO org.apache.zookeeper.ZooKeeper: >> Initiating >> > > > client connection, connectString=10.2.201.74:11000, >> 10.2.201.73:11000, >> > > > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000 >> > > > sessionTimeout=30000 >> > > > >> > > > >> > > >> > >> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,362 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 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$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,371 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 2014-09-20,17:34:51,372 INFO >> > > > org.apache.zookeeper.client.ZooKeeperSaslClient: Client will use >> GSSAPI >> > > as >> > > > SASL mechanism. >> > > > 2014-09-20,17:34:51,372 INFO org.apache.zookeeper.ClientCnxn: >> Opening >> > > > socket connection to server lg-com-master01.bj/10.101.10.66:11000. >> > Will >> > > > attempt to SASL-authenticate using Login Context section 'Client' >> > > > 2014-09-20,17:34:51,372 INFO org.apache.zookeeper.ClientCnxn: Socket >> > > > connection established to lg-com-master01.bj/10.101.10.66:11000, >> > > > initiating >> > > > session >> > > > 2014-09-20,17:34:51,373 INFO org.apache.zookeeper.ClientCnxn: >> Session >> > > > establishment complete on server >> lg-com-master01.bj/10.101.10.66:11000 >> > , >> > > > sessionid = 0x4877f561587a0b, negotiated timeout = 30000 >> > > > 2014-09-20,17:34:51,380 INFO org.apache.zookeeper.ZooKeeper: >> Session: >> > > > 0x4877f561587a0b closed >> > > > 2014-09-20,17:34:51,380 INFO org.apache.zookeeper.ClientCnxn: >> > EventThread >> > > > shut down >> > > > 2014-09-20,17:34:51,382 INFO org.apache.zookeeper.ZooKeeper: >> Initiating >> > > > client connection, connectString=10.2.201.74:11000, >> 10.2.201.73:11000, >> > > > 10.101.10.67:11000,10.101.10.66:11000,10.2.201.75:11000 >> > > > sessionTimeout=30000 >> > > > >> > > > >> > > >> > >> watcher=catalogtracker-on-org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@55d4ee7e >> > > > 2014-09-20,17:34:51,382 INFO >> > > > org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: The >> identifier >> > of >> > > > this process is [email protected] >> > > > 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 <[email protected]> >> > 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 <[email protected]> >> > > > > To: "[email protected]" <[email protected]> >> > > > > 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 [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 >> > > > > >> > > > >> > > >> > >> > >
