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*: Handle SIGHUP #2139

Merged
merged 3 commits into from Feb 17, 2020
Merged

*: Handle SIGHUP #2139

merged 3 commits into from Feb 17, 2020

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kakkoyun
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This PR handles received SIGHUP signals and dispatches reload events to sub-commands to handle.
Only the ruler utilizes this right now. Receiver and Ruler implement their own file watchers to reload configurations.

Fixes #1333.

  • I added CHANGELOG entry for this change.
  • Change is not relevant to the end user.

Changes

Verification

  • make test-local
  • MINIO_ENABLED=1 ./scripts/quickstart.sh
    • kill -HUP <thanos-pid>

@kakkoyun
Handle SIGHUP
ae49c8d 
Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>
@kakkoyun
Only log when signal received
cf4c51b 
Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>
kakkoyun
kakkoyun commented Feb 14, 2020
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cmd/thanos/main.go Outdated Show resolved Hide resolved
@kakkoyun
Use a buffered channel
6b5c862 
Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>
bwplotka
bwplotka reviewed Feb 14, 2020
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Nice! Some suggestion. Especially if no one is actually receiving the channel, we might leak some memory (?).

cmd/thanos/main.go Show resolved Hide resolved
@kakkoyun
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@bwplotka Should I move handling logic per subcommand? or is this good enough?

bwplotka
bwplotka approved these changes Feb 17, 2020
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No, that's fine for now. Thanks 👍

@bwplotka bwplotka merged commit 01cee87 into thanos-io:master Feb 17, 2020
@kakkoyun kakkoyun deleted the sighup branch February 17, 2020 15:47
@kakkoyun kakkoyun mentioned this pull request Feb 18, 2020
Merged
vankop pushed a commit to monitoring-tools/thanos that referenced this pull request Feb 28, 2020
@kakkoyun @vankop
*: Handle SIGHUP (thanos-io#2139)
67fe678 
* Handle SIGHUP

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Only log when signal received

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* Use a buffered channel

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>
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@bwplotka bwplotka bwplotka approved these changes

@GiedriusS GiedriusS Awaiting requested review from GiedriusS

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Handle SIGHUP event
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@kakkoyun @bwplotka