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upgrade to raulk/go-watchdog@v1.0.1 #5396

Merged
merged 1 commit into from
Jan 20, 2021
Merged

upgrade to raulk/go-watchdog@v1.0.1 #5396

merged 1 commit into from
Jan 20, 2021

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@raulk raulk commented Jan 20, 2021

This pulls in the improvements introduced in:

Lotus tries to initialize the watchdog in the following order of precedence:

  1. If a max heap limit has been provided, initialize a heap-driven watchdog.
  2. Else, try to initialize a cgroup-driven watchdog.
  3. Else, try to initialize a system-driven watchdog.
  4. Else, log a warning that the system is flying solo, and return.

This PR also enabled automatic heap profile capture when memory usage surpasses 90% of the limit. Profiles are written to <LOTUS_HOME>/heapprof. A single heap profile is captured per episode, with a max of 10 episodes captured during the lifetime of the process. Episode = instance of usage climbing above the 90% threshold.


Closes #5336.

This pulls in the improvements introduced in:
  - https://github.com/raulk/go-watchdog/releases/tag/v1.0.0
  - https://github.com/raulk/go-watchdog/releases/tag/v1.0.1

Lotus tries to initialize the watchdog in the following order of precedence:
  1. If a max heap limit has been provided, initialize a heap-driven watchdog.
  2. Else, try to initialize a cgroup-driven watchdog.
  3. Else, try to initialize a system-driven watchdog.
  4. Else, log a warning that the system is flying solo, and return.

This PR also enabled automatic heap profile capture when memory usage
surpasses 90% of the limit. Profiles are written to <LOTUS_HOME>/heapprof.
A single heap profile is captured per episode, with a max of 10 episodes
captured during the lifetime of the process. Episode = instance of usage
climbing above the 90% threshold.
@magik6k magik6k merged commit fb27969 into master Jan 20, 2021
@magik6k magik6k deleted the feat/watchdog-v1 branch January 20, 2021 19:54
// will be captured during life of this process.
watchdog.HeapProfileDir = filepath.Join(lr.Path(), "heapprof")
watchdog.HeapProfileMaxCaptures = 10
watchdog.HeapProfileThreshold = 0.1
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Oops, this value leaked from testing. It should be 0.9. Will follow up with a PR.

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memory watchdog: upgrade to upcoming v1
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