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Posted to user@hadoop.apache.org by juil <tj...@kgrid.co.kr> on 2014/08/11 11:22:13 UTC

Why does suddenly ha switching?

 
hadoop version 2.4.1
 
Network is in good condition. 
What causes the session timeout?
 
 
** DFSZKFailoverController logs2014-08-11 17:20:13,226 DEBUG org.apache.zookeeper.ClientCnxn: Got ping response for sessionid: 0x147a0162d86000c after 0ms2014-08-11 17:20:27,012 INFO org.apache.zookeeper.ClientCnxn: Client session timed out, have not heard from server in 13785ms for sessionid 0x147a0162d86000c, closing socket connection and attempting reconnect2014-08-11 17:20:27,113 INFO org.apache.hadoop.ha.ActiveStandbyElector: Session disconnected. Entering neutral mode...
** ping check log2014-08-11 17:20:12 64 bytes from zknode01 (192.168.20.170): icmp_seq=7173 ttl=64 time=0.195 ms2014-08-11 17:20:14 64 bytes from zknode01 (192.168.20.170): icmp_seq=7174 ttl=64 time=0.173 ms2014-08-11 17:20:16 64 bytes from zknode01 (192.168.20.170): icmp_seq=7175 ttl=64 time=0.208 ms2014-08-11 17:20:18 64 bytes from zknode01 (192.168.20.170): icmp_seq=7176 ttl=64 time=0.196 ms2014-08-11 17:20:20 64 bytes from zknode01 (192.168.20.170): icmp_seq=7177 ttl=64 time=0.209 ms2014-08-11 17:20:22 64 bytes from zknode01 (192.168.20.170): icmp_seq=7178 ttl=64 time=0.199 ms2014-08-11 17:20:24 64 bytes from zknode01 (192.168.20.170): icmp_seq=7179 ttl=64 time=0.184 ms2014-08-11 17:20:26 64 bytes from zknode01 (192.168.20.170): icmp_seq=7180 ttl=64 time=0.255 ms2014-08-11 17:20:28 64 bytes from zknode01 (192.168.20.170): icmp_seq=7181 ttl=64 time=0.187 ms2014-08-11 17:20:30 64 bytes from zknode01 (192.168.20.170): icmp_seq=7182 ttl=64 time=0.201 ms