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Evict spare, idle resources after a configurable time #2

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cressie176 opened this issue Aug 24, 2023 · 0 comments
Open
10 tasks

Evict spare, idle resources after a configurable time #2

cressie176 opened this issue Aug 24, 2023 · 0 comments

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@cressie176
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cressie176 commented Aug 24, 2023 •
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Some users may wish to reduce the pool size during periods of low activity. We can achieve this by implementing an eviction policy

  • Support an optional configurable eviction threshold, specified in milliseconds
  • Validate the eviction threshold
    • Assert that the eviction threshold is a number
    • Assert that the minimum eviction threshold is 1 millisecond
  • Evict resources that have been idle for longer than the eviction threshold
  • Do not evict resources if...
    • The pool will fall below the minimum size
    • The candidate resource is not spare (i.e. number of queued requests is lower than the number of idle resources)
  • If a resource cannot be evicted immediately consider it at a later date if it does not end up being acquired
  • Destroy / quarantine evicted resources in the usual way
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