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Add host selector strategy configuration #249

Merged
merged 1 commit into from Mar 27, 2013

2 participants

@rschildmeijer

When we switched from round-robin to least outstanding host selector we noticed a drop in request execution time by factor:
mean: ~ 4
95th percentile: ~ 10
99th percentile: ~ 12

This is with a 60 nodes Cassandra cluster.
~95 % read requests, ~5 % write requests

Connection pool configuration:
ConnectionPoolType == ConnectionPoolType.TOKEN_AWARE
DiscoveryType == NodeDiscoveryType.RING_DESCRIBE
MaxConnsPerHost == InitConnsPerHost = 40
MaxTimeoutWhenExhausted = 0 (fast fail)

@elandau elandau merged commit 6803700 into Netflix:master Mar 27, 2013
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