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https://issues.apache.org/jira/browse/IMPALA-12874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17839691#comment-17839691
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ASF subversion and git services commented on IMPALA-12874:
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Commit 6c738bc3fe9d765254b45d62c859275eaaa16a0f in impala's branch
refs/heads/branch-4.4.0 from Yida Wu
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=6c738bc3f ]
IMPALA-12874: Identify active and standby catalog and statestore in the web
debug endpoint
This patch adds support to display the HA status of catalog and
statestore on the root web page. The status will be presented
as "Catalog Status: Active" or "Statestore Status: Standby"
based on the values retrieved from the metrics
catalogd-server.active-status and statestore.active-status.
If the catalog or statestore is standalone, it will show active as
the status, which is same as the metric.
Tests:
Ran core tests.
Manually tests the web page, and verified the status display is
correct. Also checked the situation when the failover happens,
the current 'standby' status can be changed to 'active'.
Change-Id: Ie9435ba7a9549ea56f9d080a9315aecbcc630cd2
Reviewed-on: http://gerrit.cloudera.org:8080/21294
Reviewed-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
> Identify Catalog HA and StateStore HA from the web debug endpoint
> -----------------------------------------------------------------
>
> Key: IMPALA-12874
> URL: https://issues.apache.org/jira/browse/IMPALA-12874
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: gaurav singh
> Assignee: Yida Wu
> Priority: Major
> Fix For: Impala 4.4.0
>
>
> Identify which Catalog and Statestore instance is active from the web debug
> endpoint.
> For the HA, we should improve the label on catalog and statestore web
> response to indicate "Active" instance.
> On the main page we could indicate "Status: Active" or "Status: Stand-by". We
> could probably add the status at the top of the main page before *"Version"*
> . The current details as output of a curl request on port 25020:
> {code:java}
> <h2>Vers<span id="v">i</span>on</h2>
> <pre id="version_pre">catalogd version 4.0.0.2024.0.18.0-61 RELEASE (build
> 82901f3f83fa4c25b318ebf825a1505d89209356)
> Built on Fri Mar 1 20:13:09 UTC 2024
> Build Flags: is_ndebug=true cmake_build_type=RELEASE
> library_link_type=STATIC </pre>
> <!-- The space after is necessary to add a space between each flag when
> this page is rendered -->
> <h2>Process Start Time</h2>
> ......
> {code}
> Corresponding curl request on statestored on 25010:
> {code:java}
> <h2>Vers<span id="v">i</span>on</h2>
> <pre id="version_pre">statestored version 4.0.0.2024.0.18.0-61 RELEASE
> (build 82901f3f83fa4c25b318ebf825a1505d89209356)
> Built on Fri Mar 1 20:13:09 UTC 2024
> Build Flags: is_ndebug=true cmake_build_type=RELEASE
> library_link_type=STATIC </pre>
> <!-- The space after is necessary to add a space between each flag when
> this page is rendered -->
> <h2>Process Start Time</h2>
> {code}
> Catalogd active status can be figured out using the catalogd metric:
> "catalog-server.active-status"
> Statestored active status we probably don't have a metric so should add a
> similar metric and use that to determine status.
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