Solr4 To Solr6 CPU load issues

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Bsr
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Solr4 To Solr6 CPU load issues

Bsr
I have upgraded Solr4.0 Beta to Solr6.6. The Cache results look Awesome but
overall the CPU load on solr6.6 is double the load on solr4.0 and hence I
am not able to roll solr6.6 to 100% of my traffic.

*Some Key Stats In Performance of Sol6 Vs Solr4*
Document cache usage increased from .98 from .14
Query Result cache usage increased from .10 from .24
Filter cache same as .94
Field Value cache was 0.99 in solr4 but n/a in solr6 (i guess because field
multivalued concept was changed from solr4 to solr6)

*Please Help Note: I have given document cache 3 times memory for
doc.cache.*
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Re: Solr4 To Solr6 CPU load issues

Emir Arnautović
Hi Birender,
Do you monitor you heap? Is it possible that you are running close to max heap size and that GC is what is taking CPU?

Emir
--
Monitoring - Log Management - Alerting - Anomaly Detection
Solr & Elasticsearch Consulting Support Training - http://sematext.com/



> On 11 Feb 2018, at 19:38, Birender Rawat <[hidden email]> wrote:
>
> I have upgraded Solr4.0 Beta to Solr6.6. The Cache results look Awesome but
> overall the CPU load on solr6.6 is double the load on solr4.0 and hence I
> am not able to roll solr6.6 to 100% of my traffic.
>
> *Some Key Stats In Performance of Sol6 Vs Solr4*
> Document cache usage increased from .98 from .14
> Query Result cache usage increased from .10 from .24
> Filter cache same as .94
> Field Value cache was 0.99 in solr4 but n/a in solr6 (i guess because field
> multivalued concept was changed from solr4 to solr6)
>
> *Please Help Note: I have given document cache 3 times memory for
> doc.cache.*