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From Ted Zlatanov <>
Subject Re: thinking about dropping hinted handoff
Date Tue, 23 Feb 2010 22:42:17 GMT
On Tue, 23 Feb 2010 15:57:15 -0600 Jonathan Ellis <> wrote: 

JE> 2010/2/23 Ted Zlatanov <>:
>> You're welcome.  I don't understand why it doesn't help reach
>> consistency, though.  If you turn all the nodes in a cluster read-only
>> at the API level, what can make them inconsistent besides inter-node
>> traffic and scheduled writes?  I'd assume that activity will die down
>> eventually; can Cassandra tell a monitoring agent through JMX when it is
>> over?

JE> because in a masterless environment there is no way to tell "when it's over"

Would it work to use an external agent?  It can get the list of nodes,
make them all read-only, then wait until every node reports no write
activity through JMX.


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