2016-05-23 17:18:11,106 [myid:1] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:11430 (no session established for client) 2016-05-23 17:18:41,751 [myid:1] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:12098 2016-05-23 17:18:41,751 [myid:1] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@357] - caught end of stream exception EndOfStreamException: Unable to read additional data from client sessionid 0x0, likely client has closed socket at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:230) at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:203) at java.lang.Thread.run(Thread.java:745) 2016-05-23 17:18:41,751 [myid:1] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:12098 (no session established for client) 2016-05-23 17:18:55,219 [myid:1] - WARN [SyncThread:1:FileTxnLog@334] - fsync-ing the write ahead log in SyncThread:1 took 1243ms which will adversely effect operation latency. See the ZooKeeper troubleshooting guide 2016-05-23 17:19:11,679 [myid:1] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:12815 2016-05-23 17:19:11,680 [myid:1] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@357] - caught end of stream exception EndOfStreamException: Unable to read additional data from client sessionid 0x0, likely client has closed socket at org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:230) at org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:203) at java.lang.Thread.run(Thread.java:745) 2016-05-23 17:19:11,680 [myid:1] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@1008] - Closed socket connection for client /127.0.0.1:12815 (no session established for client) 2016-05-23 17:19:41,018 [myid:1] - INFO [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxnFactory@192] - Accepted socket connection from /127.0.0.1:13507 2016-05-23 17:19:41,018 [myid:1] - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2182:NIOServerCnxn@357] - caught end of stream exception EndOfStreamException: Unable to read additional data from client sessionid 0x0, likely client has closed socket
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原文：http://yujianglei.blog.51cto.com/7215578/1782211