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https://issues.apache.org/jira/browse/SOLR-12867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16650291#comment-16650291
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Varun Thacker commented on SOLR-12867:
--------------------------------------

Hi Shawn,

Unfortunately this has been a known bug for a while :/ I had created SOLR-12291 
to track the work but neer got around to committing it.

> Async request status: Not getting all status messages because a response from 
> one node will overwrite previous responses from that node
> ---------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-12867
>                 URL: https://issues.apache.org/jira/browse/SOLR-12867
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Shawn Heisey
>            Priority: Major
>
> Problem noticed with REQUESTSTATUS on an async collections API BACKUP call.
> Not all of the responses from different nodes in the collection are being 
> reported.  According to [~shalinmangar], this is because multiple responses 
> from a node are overwriting earlier responses from that node.
> Steps to reproduce:
>  * Start a cloud example with "bin/solr -e cloud" in a 7.5.0 binary download. 
>  Tell it that you want 3 nodes, accept defaults for all other questions.
> * Create a collection with 30 shards:
> ** bin\solr create -c test2 -shards 30 -replicationFactor 2
> * Start an async backup of the collection.  On a Windows system, the URL 
> might look like this:
> ** 
> http://localhost:8983/solr/admin/collections?action=BACKUP&name=test2&collection=test2&location=C%3A%5CUsers%5Celyograg%5CDownloads%5Csolrbackups&async=sometag
>  * After a few seconds (to give the backup time to complete), request the 
> status of the async operation:
>  ** 
> http://localhost:8983/solr/admin/collections?action=REQUESTSTATUS&requestid=sometag
> The response will only contain individual statuses for 3 of the 30 shards.



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