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From Erick Erickson <erickerick...@gmail.com>
Subject Re: How to change stateFomat to 2
Date Tue, 18 Apr 2017 20:19:24 GMT
There should be no need to set CLUSTERPROP more than once, it's a
characteristic of your entire, well, cluster. See clusterprops.json in
your admin UI>>tree view.

Best,
Erick

On Tue, Apr 18, 2017 at 10:21 AM, Manohar Sripada <manohar211@gmail.com> wrote:
> Thanks Erick!
> state.json exists for each collection in the "tree" view of admin UI. So,
> that format is set to 2. I will call the CLUSTERPROP collections API too
> and set legacyCloud=false whenever I create a collection.
>
> Thanks
>
> On Tue, Apr 18, 2017 at 8:50 PM, Erick Erickson <erickerickson@gmail.com>
> wrote:
>
>> clusterstate.json will exist, it just should be empty if you're using
>> state format 2.
>>
>> Note: if you have "state.json" files under each collections in ZK (see
>> the "tree" view in the admin UI), then you _are_ in the format 2
>> world. However, for Solr 5.x, there'a an obscure property
>> "legacyCloud" that, if true will allow orphan replicas to reconstruct
>> themselves in clusterstate.json even if the format is 2. The condition
>> is that you have orphan replicas out there (where you've deleted the
>> collection but for some reason were unable to delete the replica, say
>> the Solr node hosting some replicas was down and you restarted it).
>> When Solr starts up, this orphan reconstructs itself in
>> clusterstate.json, where it's ignored.
>>
>> So you should set legacyCloud=false using the CLUSTERPROP (IIRC)
>> collections API call. You can also just delete the _data_ from
>> clusterstate.json. ASSUMING you're in format 2.
>>
>> If you're really in format 1, then see MIGRATESTATEFORMAT here:
>> https://cwiki.apache.org/confluence/display/solr/Collections+API#
>> CollectionsAPI-MIGRATESTATEFORMAT:MigrateClusterState
>>
>> Best,
>> Erick
>>
>> On Tue, Apr 18, 2017 at 8:03 AM, Manohar Sripada <manohar211@gmail.com>
>> wrote:
>> > After deleting a collection through Collection API, the data is not
>> getting
>> > deleted from clusterstate.json. Based on this discussion
>> > <http://lucene.472066.n3.nabble.com/create-collection-
>> gets-stuck-on-node-restart-td4311994.html>,
>> > it seems clusterstate.json shouldn't be there for Solr 5.x (I am using
>> > 5.2.1). It also mentions that stateFormat should be set to 2.
>> >
>> > How to set stateFormat to 2 while calling the Collection API? Can I
>> default
>> > it to 2 during the setup itself so that I dont need to set it up for each
>> > and every collection creation?
>> >
>> > Thanks in Advance!
>>

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