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Posted to solr-user@lucene.apache.org by Henrik Brautaset Aronsen <he...@gmail.com> on 2017/02/14 09:52:56 UTC
Performance degradation after upgrading from 6.2.1 to 6.4.1
We are seeing performance degradation on our SolrCloud instances after
upgrading to 6.4.1.
Here are a couple of graphs. As you can see, 6.4.1 was introduced 2/10
1200:
https://www.dropbox.com/s/qrc0wodain50azz/solr1.png?dl=0
https://www.dropbox.com/s/sdk30imm8jlomz2/solr2.png?dl=0
These are two very different usage scenarios:
* Solr1 has constant updates and very volatile data (30 minutes TTL, 20
shards with no replicas, across 8 servers). Requests in the 99 percentile
went from ~400ms to 1000-1500ms. (Hystrix cutoff at 1.5s)
* Solr2 is a more traditional instance with long-lived data (updated once a
day, 24 shards with 2 replicas, across 8 servers). Requests in the 99
percentile went from ~400ms to at least 1s. (Hystrix cutoff at 1s)
I've been looking around, but cannot really find a reason for the
performance degradation. Does any of you have an idea?
Cheers,
Henrik
Re: Performance degradation after upgrading from 6.2.1 to 6.4.1
Posted by Dorian Hoxha <do...@gmail.com>.
Did you see the other thread ? It looked like a problem with logging.
On Tue, Feb 14, 2017 at 10:52 AM, Henrik Brautaset Aronsen <
henrik.aronsen@gmail.com> wrote:
> We are seeing performance degradation on our SolrCloud instances after
> upgrading to 6.4.1.
>
>
> Here are a couple of graphs. As you can see, 6.4.1 was introduced 2/10
> 1200:
>
>
> https://www.dropbox.com/s/qrc0wodain50azz/solr1.png?dl=0
>
> https://www.dropbox.com/s/sdk30imm8jlomz2/solr2.png?dl=0
>
>
> These are two very different usage scenarios:
>
>
> * Solr1 has constant updates and very volatile data (30 minutes TTL, 20
> shards with no replicas, across 8 servers). Requests in the 99 percentile
> went from ~400ms to 1000-1500ms. (Hystrix cutoff at 1.5s)
>
>
> * Solr2 is a more traditional instance with long-lived data (updated once a
> day, 24 shards with 2 replicas, across 8 servers). Requests in the 99
> percentile went from ~400ms to at least 1s. (Hystrix cutoff at 1s)
>
>
> I've been looking around, but cannot really find a reason for the
> performance degradation. Does any of you have an idea?
>
>
> Cheers,
>
> Henrik
>
Re: Performance degradation after upgrading from 6.2.1 to 6.4.1
Posted by Ere Maijala <er...@helsinki.fi>.
It might be <https://issues.apache.org/jira/browse/SOLR-10130>.
--Ere
14.2.2017, 11.52, Henrik Brautaset Aronsen kirjoitti:
> We are seeing performance degradation on our SolrCloud instances after
> upgrading to 6.4.1.
>
>
> Here are a couple of graphs. As you can see, 6.4.1 was introduced 2/10
> 1200:
>
>
> https://www.dropbox.com/s/qrc0wodain50azz/solr1.png?dl=0
>
> https://www.dropbox.com/s/sdk30imm8jlomz2/solr2.png?dl=0
>
>
> These are two very different usage scenarios:
>
>
> * Solr1 has constant updates and very volatile data (30 minutes TTL, 20
> shards with no replicas, across 8 servers). Requests in the 99 percentile
> went from ~400ms to 1000-1500ms. (Hystrix cutoff at 1.5s)
>
>
> * Solr2 is a more traditional instance with long-lived data (updated once a
> day, 24 shards with 2 replicas, across 8 servers). Requests in the 99
> percentile went from ~400ms to at least 1s. (Hystrix cutoff at 1s)
>
>
> I've been looking around, but cannot really find a reason for the
> performance degradation. Does any of you have an idea?
>
>
> Cheers,
>
> Henrik
>
--
Ere Maijala
Kansalliskirjasto / The National Library of Finland