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https://issues.apache.org/jira/browse/SOLR-15840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ishan Chattopadhyaya updated SOLR-15840:
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Affects Version/s: 8.11
> Performance degradation with Http2 client
> -----------------------------------------
>
> Key: SOLR-15840
> URL: https://issues.apache.org/jira/browse/SOLR-15840
> Project: Solr
> Issue Type: Task
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 8.11
> Reporter: Ishan Chattopadhyaya
> Priority: Major
>
> The HTTP/2 client for internode communication has some serious bottleneck
> when the system is at a load. For the same scenario, the HTTP1 client
> performs much better.
> Here's how to reproduce the test:
> {code}
> git clone https://github.com/fullstorydev/solr-bench
> mvn clean compile assembly:single
> ./cleanup.sh && ./stress.sh http2-bug.json
> {code}
> ^ This will run a stress test scenario using the HTTP1 client. After running
> this, change this line from http1=true to http1=false and re-run the test:
> https://github.com/fullstorydev/solr-bench/blob/master/http2-bug.json#L92
> I ran this test on my AMD Ryzen 5700G, 64GB RAM machine. It has 8 cores/16
> threads. The test with http1=true passes in about 30-40 minutes. The test
> with http1=false hangs indefinitely, with queries getting timed out all the
> time and the system experiencing some hang/stuck. All queries are sent to the
> node at port 50000, where we're changing the client type.
> Test plan is here:
> https://github.com/fullstorydev/solr-bench/blob/master/http2-bug.json
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