foreman performance tuning #336
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jhoblitt
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foreman is eventually becoming unresponsive with a single worker. The sole worker maxes out a core and then foreman is slow to respond. Suspect this is due to locking in the ruby interpretor. Running multiple workers allow multiple cores to be used.
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The foreman.cp proxy is frequently hitting the 30s timeout when querying puppetserver for classes. This is a waste of time as we are not currently using the foreman enc for class inclusion.
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This is an attempt to keep foreman more responsive by increasing the number of puma workers but reducing the number of active threads per worker to keep the total number of puma threads at 16. A system/cgroup memory limit of 16GiB is also applied along with puppetserver tuning.