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Tomas Eduardo Fernandez Lobbe commented on SOLR-16951: ------------------------------------------------------ Yes, this is happening in 9.3. From what I could see, the thread that calls the {{send}} is the one that ends up actually sending the request bytes (calling {{onBegin}} before that) > HttpShardHandler performance degradation in Solr 9 > -------------------------------------------------- > > Key: SOLR-16951 > URL: https://issues.apache.org/jira/browse/SOLR-16951 > Project: Solr > Issue Type: Bug > Security Level: Public(Default Security Level. Issues are Public) > Affects Versions: 9.0, 9.1, 9.2, 9.3 > Reporter: Tomas Eduardo Fernandez Lobbe > Priority: Major > > After the work done in SOLR-14354, all shard requests are sent in the same > thread. {{send}} is supposed to be very fast so this shouldn't be a problem, > but we currently have {{PKIAuthenticationPlugin}} as a request > interceptor/listener, which is called for each shard request to generate and > add the authentication token. This part can take a couple milliseconds so > with enough shards, there is a noticeable slowdown in distributed search > requests. > We should either speedup PKIAuthenticationPlugin interception (maybe caching? > reusing the same token for all shard requests?) and/or making the token > generation part run in parallel as it used to. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@solr.apache.org For additional commands, e-mail: issues-h...@solr.apache.org