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From Owen Davies <>
Subject Data not replicating to all datacenters
Date Mon, 03 Dec 2012 12:42:42 GMT
We have a 2 data center test cassandra setup running, and are writing
to it using LOCAL_QUORUM. When reading, sometimes the data is there,
sometimes it is not, which we think is a replication issue, even
though we have left it plenty of time after the writes.

We have the following setup:

cassandra -v: 1.1.6


cluster_name: something

endpoint_snitch: PropertyFileSnitch


Keyspace: example:
  Replication Strategy: org.apache.cassandra.locator.NetworkTopologyStrategy
  Durable Writes: true
    Options: [dc1:3, dc2:3]

nodetool ring

Address         DC          Rack        Status State   Load
Effective-Ownership Token

159447687142037741049740936276011715300   dc1          rack1       Up     Normal  111.17 GB
100.00%             67165620003619490909052924699950283577   dc1          rack1       Up     Normal  204.57 GB
100.00%             71045951808949151217931264995073558408   dc2         rack1       Up     Normal  209.92 GB
100.00%             107165019770579893816561717940612111506   dc1          rack1       Up     Normal  209.92 GB
100.00%             114165363957966360026729000065495595953   dc2         rack1       Up     Normal  198.22 GB
100.00%             147717787092318068320268200174271353451   dc2         rack1       Up     Normal  179.31 GB
100.00%             159447687142037741049740936276011715300

Does anyone have any ideas why every server does not have the same
amount of data on?



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