Make cache saving less contentious
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Key: CASSANDRA-2053
URL: https://issues.apache.org/jira/browse/CASSANDRA-2053
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 0.7.0
Reporter: Nick Bailey
Fix For: 0.7.2
The current default for saving key caches is every hour. Additionally the
default timeout for flushing memtables is every hour. I've seen situations
where both of these occuring at the same time every hour causes enough pressure
on the node to have it drop messages and other nodes mark it dead. This
happens across the cluster and results in flapping.
We should do something to spread this out. Perhaps staggering cache
saves/flushes that occur due to timeouts.
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