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*: optimize runtime.FDUsage + add OS level FD metrics #12214

Merged
merged 3 commits into from
Aug 13, 2020
Merged

*: optimize runtime.FDUsage + add OS level FD metrics #12214

merged 3 commits into from
Aug 13, 2020

Commits on Aug 12, 2020

  1. pkg/runtime: optimize FDUsage by removing sort 

    No need sort when we just want the counts.

Signed-off-by: Gyuho Lee <leegyuho@amazon.com>
    @gyuho
    gyuho committed Aug 12, 2020
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  2. etcdserver: add OS level FD metrics 

    Similar counts are exposed via Prometheus.
This adds the one that are perceived by etcd server.

e.g.

os_fd_limit 120000
os_fd_used 14
process_cpu_seconds_total 0.31
process_max_fds 120000
process_open_fds 17

Signed-off-by: Gyuho Lee <leegyuho@amazon.com>
    @gyuho
    gyuho committed Aug 12, 2020
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  3. CHANGELOG: update 

    Signed-off-by: Gyuho Lee <leegyuho@amazon.com>
    @gyuho
    gyuho committed Aug 12, 2020
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