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  1. Bug #1656022
  2. Comment #18

Comment 18 for bug 1656022

Revision history for this message
Rick Pizzi (pizzi) wrote :

Addendum - we had a new peak of traffic and the situation with 8 GB cache and 64k blocks got MUCH worse, with stalls of 40 seconds and more....

By looking at PMM graph I was being able to spot a bottleneck in tokudb_cachetable_pool_threads - the graph shows that pool saturated for several second (at 2 x NCPU, since I did not change that one). For sure there is a relationship. I am going to increase that pool from default to something higher to see if that solves this problem.