I’d be curious if other folks have seen this either anecdotally or even better 
through some performance testing!

> On May 24, 2024, at 9:12 AM, Tim Funk <funk...@apache.org> wrote:
> 
> solr9 turns security on manager by default. This has a high probability of
> a performance impact..
> 
> disable via adding to startup
> export SOLR_SECURITY_MANAGER_ENABLED=false
> 
> -Tim
> 
> On Thu, May 23, 2024 at 11:23 AM elisabeth benoit <elisaelisael...@gmail.com>
> wrote:
> 
>> Hello,
>> 
>> We've just migrated one of our services from solr 7.3.1 to solr 9.2.1 in
>> production.
>> 
>> We have 6 servers, each with one solr instance, all conf is automated with
>> puppet, git, etc. so they  all have same conf, but they dont behave the
>> same way. We have two servers with solr response time much faster, from
>> 50ms to 75ms.
>> 
>> This week we rebooted all our servers, and now we have three solr instances
>> running faster than the three other ones instead of two.
>> 
>> We've check everything we could think of: memory, GC, caches, everything is
>> the same.
>> 
>> We're not in solr cloud, but with leader conf.
>> 
>> Just writing in case someone has an idea about this unstable behaviour.
>> 
>> 

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