Hi, I have 9 node cluster with RF-3 and using Cassandra0.70/Hector26. Recently we are seeing lot of "UnavailableException" at the client side. Whenever this happens, I found following pattern in Cassandra node's log file at that given time,
* INFO [ScheduledTasks:1] 2011-05-13 02:59:55,365 Gossiper.java (line 195) InetAddress /**.**.***.54 is now dead.* * INFO [ScheduledTasks:1] 2011-05-13 02:59:57,369 Gossiper.java (line 195) InetAddress /****.**.***.**59 is now dead.* INFO [HintedHandoff:1] 2011-05-13 03:00:04,706 HintedHandOffManager.java (line 192) Started hinted handoff for endpoint /***.**.***.*54 * INFO [GossipStage:1] 2011-05-13 03:00:04,706 Gossiper.java (line 569) InetAddress /****.**.*****.54 is now UP* INFO [HintedHandoff:1] 2011-05-13 03:00:04,706 HintedHandOffManager.java (line 248) Finished hinted handoff of 0 rows to endpoint /***.**.****.54 INFO [HintedHandoff:1] 2011-05-13 03:00:20,601 HintedHandOffManager.java (line 192) Started hinted handoff for endpoint /***.**.****.59 * INFO [GossipStage:1] 2011-05-13 03:00:20,601 Gossiper.java (line 569) InetAddress /****.**.*****.59 is now UP* The exception occurred at "2011-05-13 03:00:00,664". I am wondering what why this dead/up pattern is occurring at Gossip. Thanks in advance, Cassa L.
