Chris M. Hostetter created SOLR-14298:
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Summary: LBSolrClient.checkAZombieServer should be less stupid
Key: SOLR-14298
URL: https://issues.apache.org/jira/browse/SOLR-14298
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Chris M. Hostetter
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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