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https://issues.apache.org/jira/browse/HDFS-16940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Vaughan updated HDFS-16940:
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Description:
Provide HTTP endpoints that report the current status of the API server when
running in dynamic environments. Using Kubernetes as an example, this would
include `/livez` and `/readyz` endpoints. These endpoints would be distinct,
covering specific cases:
* `livez` would indicate if the server is up and running. A service can be up
but not ready to to cover it's assigned duties. As an example, a JournalNode
could be up, but unformatted or unsynchronized.
* `readyz` would indicate that the server ready. Following the same example,
once a JournalNode is synchronized it can act as part of the JournalNode
quorum, supporting other services.
was:Provide HTTP endpoints that provide
> Provide HTTP API health endpoints to simplify monitoring
> --------------------------------------------------------
>
> Key: HDFS-16940
> URL: https://issues.apache.org/jira/browse/HDFS-16940
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs
> Affects Versions: 3.4.0, 3.3.9
> Reporter: Steve Vaughan
> Assignee: Steve Vaughan
> Priority: Major
>
> Provide HTTP endpoints that report the current status of the API server when
> running in dynamic environments. Using Kubernetes as an example, this would
> include `/livez` and `/readyz` endpoints. These endpoints would be distinct,
> covering specific cases:
> * `livez` would indicate if the server is up and running. A service can be
> up but not ready to to cover it's assigned duties. As an example, a
> JournalNode could be up, but unformatted or unsynchronized.
> * `readyz` would indicate that the server ready. Following the same
> example, once a JournalNode is synchronized it can act as part of the
> JournalNode quorum, supporting other services.
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