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Solr collector

Solr is an open-source enterprise-search platform, written in Java, from the Apache Lucene project.

This module monitors Solr request handler statistics.

Requirement

  • Solr version 6.4+

Metrics

All metrics have "solr." prefix.

MetricScopeDimensionsUnits
search_requestsglobalsearchrequests/s
search_errorsglobalerrorserrors/s
search_errors_by_typeglobalclient, server, timeoutserrors/s
search_requests_processing_timeglobaltimemilliseconds
search_requests_timingsglobalmin, median, mean, maxmilliseconds
search_requests_processing_time_percentileglobalp75, p95, p99, p999milliseconds
update_requestsglobalsearchrequests/s
update_errorsglobalerrorserrors/s
update_errors_by_typeglobalclient, server, timeoutserrors/s
update_requests_processing_timeglobaltimemilliseconds
update_requests_timingsglobalmin, median, mean, maxmilliseconds
update_requests_processing_time_percentileglobalp75, p95, p99, p999milliseconds

Configuration

Edit the go.d/solr.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/solr.conf

Here is an example for 2 servers:

jobs:
- name: local
url: http://localhost:8983

- name: remote
url: http://203.0.113.10:8983

For all available options please see module configuration file.

Troubleshooting

To troubleshoot issues with the solr collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

  • Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].

    cd /usr/libexec/netdata/plugins.d/
  • Switch to the netdata user.

    sudo -u netdata -s
  • Run the go.d.plugin to debug the collector:

    ./go.d.plugin -d -m solr

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