Metrics for a healthy Solr cluster

[Greenhorn Techie <gr...@gmail.com>]

Hi,

Solr provides numerous JMX metrics for monitoring the health of the
cluster. We are setting up a SolrCloud cluster and hence wondering what are
the important parameters / metrics to look into, to ascertain that the
cluster health is good. Obvious things comes to my mind are CPU utilisation
and memory utilisation.

However, wondering what are the other parameters to look into from the
health of the cluster? Are there any best practices?

Thanks

Re: Metrics for a healthy Solr cluster

[Emir Arnautović <em...@sematext.com>]

Hi,
If you are up to ready-to-go Solr monitoring, you can check out Sematext’s Solr integration: https://sematext.com/integrations/solr-monitoring/ <https://sematext.com/integrations/solr-monitoring/>

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



> On 16 Aug 2018, at 17:24, Greenhorn Techie <gr...@gmail.com> wrote:
> 
> Hi,
> 
> Solr provides numerous JMX metrics for monitoring the health of the
> cluster. We are setting up a SolrCloud cluster and hence wondering what are
> the important parameters / metrics to look into, to ascertain that the
> cluster health is good. Obvious things comes to my mind are CPU utilisation
> and memory utilisation.
> 
> However, wondering what are the other parameters to look into from the
> health of the cluster? Are there any best practices?
> 
> Thanks

Re: Metrics for a healthy Solr cluster

[Rahul Singh <ra...@gmail.com>]

I wrote something related to this topic a while ago.

https://www.google.com/amp/s/blog.anant.us/resources-for-monitoring-datastax-cassandra-spark-solr-performance/amp/

Rahul
On Aug 16, 2018, 3:35 PM -0700, Jan Høydahl <ja...@cominvent.com>, wrote:
> Check out the Reference Guide chapter on monitoring with open source Prometheus and Grafana.
> https://lucene.apache.org/solr/guide/7_4/monitoring-solr-with-prometheus-and-grafana.html <https://lucene.apache.org/solr/guide/7_4/monitoring-solr-with-prometheus-and-grafana.html>
>
> You'll get a nice dashboard with key metrics and be able to tweak thresholds, alerts etc.
> Note that Solr now has a rich REST based metrics API so you don't need JMX anymore.
> Also, solr has now got some Metrics History capabilities built-in, see https://lucene.apache.org/solr/guide/7_4/metrics-history.html <https://lucene.apache.org/solr/guide/7_4/metrics-history.html>
>
> --
> Jan Høydahl, search solution architect
> Cominvent AS - www.cominvent.com
>
> > 16. aug. 2018 kl. 17:24 skrev Greenhorn Techie <gr...@gmail.com>:
> >
> > Hi,
> >
> > Solr provides numerous JMX metrics for monitoring the health of the
> > cluster. We are setting up a SolrCloud cluster and hence wondering what are
> > the important parameters / metrics to look into, to ascertain that the
> > cluster health is good. Obvious things comes to my mind are CPU utilisation
> > and memory utilisation.
> >
> > However, wondering what are the other parameters to look into from the
> > health of the cluster? Are there any best practices?
> >
> > Thanks
>

Re: Metrics for a healthy Solr cluster

[Jan Høydahl <ja...@cominvent.com>]

Check out the Reference Guide chapter on monitoring with open source Prometheus and Grafana.
https://lucene.apache.org/solr/guide/7_4/monitoring-solr-with-prometheus-and-grafana.html <https://lucene.apache.org/solr/guide/7_4/monitoring-solr-with-prometheus-and-grafana.html>

You'll get a nice dashboard with key metrics and be able to tweak thresholds, alerts etc.
Note that Solr now has a rich REST based metrics API so you don't need JMX anymore.
Also, solr has now got some Metrics History capabilities built-in, see https://lucene.apache.org/solr/guide/7_4/metrics-history.html <https://lucene.apache.org/solr/guide/7_4/metrics-history.html> 

--
Jan Høydahl, search solution architect
Cominvent AS - www.cominvent.com

> 16. aug. 2018 kl. 17:24 skrev Greenhorn Techie <gr...@gmail.com>:
> 
> Hi,
> 
> Solr provides numerous JMX metrics for monitoring the health of the
> cluster. We are setting up a SolrCloud cluster and hence wondering what are
> the important parameters / metrics to look into, to ascertain that the
> cluster health is good. Obvious things comes to my mind are CPU utilisation
> and memory utilisation.
> 
> However, wondering what are the other parameters to look into from the
> health of the cluster? Are there any best practices?
> 
> Thanks