incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Owen Davies <cassan...@obduk.com>
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

cassandra.yaml
-----------------------

cluster_name: something

endpoint_snitch: PropertyFileSnitch

cassandra-topology.properties
--------------------------------------------
192.168.1.1=dc1:rack1
192.168.1.2=dc1:rack1
192.168.1.3=dc1:rack1

192.168.2.1=dc2:rack1
192.168.2.2=dc2:rack1
192.168.2.3=dc3:rack1

default=nodc:norack

cassandra-cli
--------------------
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
192.168.1.2   dc1          rack1       Up     Normal  111.17 GB
100.00%             67165620003619490909052924699950283577
192.168.1.1   dc1          rack1       Up     Normal  204.57 GB
100.00%             71045951808949151217931264995073558408
192.168.2.1   dc2         rack1       Up     Normal  209.92 GB
100.00%             107165019770579893816561717940612111506
192.168.1.3   dc1          rack1       Up     Normal  209.92 GB
100.00%             114165363957966360026729000065495595953
192.168.2.3   dc2         rack1       Up     Normal  198.22 GB
100.00%             147717787092318068320268200174271353451
192.168.2.2   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?

Thanks,

Owen

Mime
View raw message