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https://issues.apache.org/jira/browse/SOLR-13942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17051516#comment-17051516
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Ishan Chattopadhyaya commented on SOLR-13942:
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bq. Ishan, you are disregarding comments because you assume people doesn’t have
your experience? what’s with that?
Gosh! How do you come to that conclusion, now? And which comments did I
disregard? I think I disagree with many comments here, but I haven't
disregarded anything.
bq. This new API makes adds exposure to internal metadata that can't be
guaranteed to be compatible over versions. By adding this API we are agreeing
to either maintain compatibility which will make development more complicated,
or, if we decide not not have compatibility, we hurt users building on top of
it, and make upgrades more difficult to them.
Lets have it as an internal API. We needn't guarantee backward compatability.
It is obvious that this is an API that just helps retrieve ZK data, and if the
structure of the data itself changes, then relying on that data isn't feasible.
Think of it as a debug API; when a query is issued with debug/explain, then
internal details are revealed (that may change in subsequent releases).
bq. ... it’s not the right thing for it in the long term
I'm not against improving all other APIs, but who will work on them to make
sure all possible info is available via those APIs? And how long do you suppose
we should wait till that is done? And, how is this API any hindrance to
improving other APIs? And how about removing this endpoint when those other
APIs are perfect?
bq. Disagree. This goes against the “hide ZooKeeper” strategy everyone agreed
on recently.
Having this endpoint is very much important to "hide ZooKeeper" (from public
exposure). No one argued that the data stored in ZK should be hidden away; Solr
keeps some internal data somewhere (ZK), and expert users must be able to
access that (in the raw form, if possible).
> /api/cluster/zk/* to fetch raw ZK data
> --------------------------------------
>
> Key: SOLR-13942
> URL: https://issues.apache.org/jira/browse/SOLR-13942
> Project: Solr
> Issue Type: New Feature
> Components: v2 API
> Reporter: Noble Paul
> Assignee: Noble Paul
> Priority: Blocker
> Fix For: 8.5
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> example
> download the {{state.json}} of
> {code}
> GET http://localhost:8983/api/cluster/zk/collections/gettingstarted/state.json
> {code}
> get a list of all children under {{/live_nodes}}
> {code}
> GET http://localhost:8983/api/cluster/zk/live_nodes
> {code}
> If the requested path is a node with children show the list of child nodes
> and their meta data
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