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From Anishek Agarwal <>
Subject Fwd: Network transfer to one node twice as others
Date Wed, 22 Apr 2015 05:11:17 GMT
Forwarding it here, someone with Cassandra internals knowledge can help may

Additionally, i observe the same behavior for reads too where Network read
from one node is twice than other two..

---------- Forwarded message ----------
From: Anishek Agarwal <>
Date: Tue, Apr 21, 2015 at 5:15 PM
Subject: Network transfer to one node twice as others
To: "" <>


We are using cassandra 2.0.14 and have a cluster of 3 nodes. I have a
writer test (written in java) that runs 50 threads to populate data to a
single table in a single keyspace.

when i look at the "iftop"  I see that the amount of network transfer
happening on two nodes is same but on one of the nodes its almost 2ice as
the other two, Any reason that would be the case ?


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