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Add prepare-shutdown endpoint to ingesters for down scaling #4718

Merged
merged 5 commits into from
Apr 14, 2023
Merged

Add prepare-shutdown endpoint to ingesters for down scaling #4718

merged 5 commits into from
Apr 14, 2023

Commits on Apr 12, 2023

  1. Add prepare-shutdown endpoint to ingesters for down scaling 

    This change adds a new HTTP endpoint to ingesters that changes their
in-memory configuration (with an on-disk backup) such that they will:
* Unregister from the ring when they stop
* Flush all in-memory data to object storage when they stop

This differs from the shutdown endpoint because it does not actually
stop the ingesters, just modifies their configuration in preparation
for being permanently stopped. This is a requirement of using the
rollout-operator for gracefully scaling down ingesters in Kubernetes.

See grafana/rollout-operator#47

Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com>
    @56quarters
    56quarters committed Apr 12, 2023
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Commits on Apr 13, 2023

  1. Code review changes 

    Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com>
    @56quarters
    56quarters committed Apr 13, 2023
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Commits on Apr 14, 2023

  1. Code review changes 

    Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com>
    @56quarters
    56quarters committed Apr 14, 2023
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  2. Fix import typo 

    Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com>
    @56quarters
    56quarters committed Apr 14, 2023
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  3. Update documentation 

    Signed-off-by: Nick Pillitteri <nick.pillitteri@grafana.com>
    @56quarters
    56quarters committed Apr 14, 2023
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