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From Yang <>
Subject frequent node UP/Down?
Date Sat, 24 Sep 2011 21:54:42 GMT
I'm using 1.0.0

there seems to be too many node Up/Dead events detected by the failure
I'm using  a 2 node cluster on EC2, in the same region, same security
group, so I assume the message drop
rate should be fairly low.
but in about every 5 minutes, I'm seeing some node detected as down,
and then Up again quickly, like the following

 INFO 20:30:12,726 InetAddress / is now dead.
 INFO 20:30:32,154 InetAddress / is now UP

does the "1 in every 5 minutes" sound roughly right for your setup? I
just want to make sure the unresponsiveness is not
caused by something like memtable flushing, or GC, which I can
probably further tune.


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