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
