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https://issues.apache.org/jira/browse/SPARK-46368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-46368:
----------------------------------
    Description: 
Like https://kubernetes.io/docs/reference/using-api/health-checks/, we need to 
provide `/readyz` API.

As a workaround, we can use the following.
{code}
readinessProbe:
  exec:
    command: ["sh", "-c", "! (curl -s 
http://localhost:6066/v1/submissions/status/none | grep -q STANDBY)"]
{code}

  was:Like https://kubernetes.io/docs/reference/using-api/health-checks/, we 
need to provide `/readyz` API.


> Support `/readyz` API
> ---------------------
>
>                 Key: SPARK-46368
>                 URL: https://issues.apache.org/jira/browse/SPARK-46368
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Spark Core
>    Affects Versions: 4.0.0
>            Reporter: Dongjoon Hyun
>            Priority: Major
>
> Like https://kubernetes.io/docs/reference/using-api/health-checks/, we need 
> to provide `/readyz` API.
> As a workaround, we can use the following.
> {code}
> readinessProbe:
>   exec:
>     command: ["sh", "-c", "! (curl -s 
> http://localhost:6066/v1/submissions/status/none | grep -q STANDBY)"]
> {code}



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