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The "Counters" page has been changed by johanoskarsson. http://wiki.apache.org/cassandra/Counters?action=diff&rev1=6&rev2=7 -------------------------------------------------- Writes require CL.ONE. * The commutative design requires partitionability and idempotence between partitions. + * If a write fails unexpectedly (timeout for example) the client will not know if the operation has been performed. A retry can result in an over count. == Operational considerations == + * Reusing IP addresses will cause problems. Since the current version of the patch uses machine ip addresses in the on disk data format as an identifier a reuse of an old address will result in incorrect counts. + == Further reading == See [[https://issues.apache.org/jira/browse/CASSANDRA-1072|CASSANDRA-1072]] and especially the [[https://issues.apache.org/jira/secure/attachment/12459754/Partitionedcountersdesigndoc.pdf|design doc]] for further information about how this works.
