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From juil <tjst...@kgrid.co.kr>
Subject Why does suddenly ha switching?
Date Mon, 11 Aug 2014 09:22:13 GMT
 
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
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