[jira] [Commented] (SOLR-14298) LBSolrClient.checkAZombieServer should be less stupid

["Noble Paul (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-14298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17762595#comment-17762595 ] 

Noble Paul commented on SOLR-14298:
-----------------------------------

We can make the alive check query a "settable" in SolrJ. I'll put up a new PR for the same

> LBSolrClient.checkAZombieServer should be less stupid
> -----------------------------------------------------
>
>                 Key: SOLR-14298
>                 URL: https://issues.apache.org/jira/browse/SOLR-14298
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Chris M. Hostetter
>            Priority: Major
>         Attachments: image-2021-11-11-13-11-30-930.png, image-2021-11-11-13-13-20-791.png
>
>
> LBSolrClient.checkAZombieServer() currently does /select query for {{\*:\*}} with distrib=false, rows=0, sort=\_docid\_ ... but this can still chew up a lot of time if the shard is big, and it's not self evident wtf is going on in the server logs.
> At a minimum, these requests should include some sort of tracing param to identify the point of he query (ie: {{_zombieservercheck=true}}) and should probably be changed to hit something like the /ping handler, or the node status handler, or if it's important to folks that it do a "search" that actaully uses the index searcher, then it should use  options like timeAllowed / segmentTerminateEarly, and/or {{q=-\*:\*}} instead .. or maybe a cusorMark ... something to make it not have the overhead of counting all the hits.



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