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From Venkat Rama <venkata.s.r...@gmail.com>
Subject Monitoring replication lag/latency in multi DC setup
Date Thu, 06 Sep 2012 03:22:43 GMT
Hi,

We have multi DC Cassandra ring with 2 DCs setup.   We use LOCAL_QUORUM for
writes and reads.  The network we have seen between the DC is sometimes
flaky lasting few minutes to few 10 of minutes.

I wanted to know what is the best way to measure/monitor either the lag or
replication latency between the data centers.  Are there any metrics I can
monitor to find the backlog of data that needs to be transferred?

Thanks in advance.

VR

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