Collecting cache statistics

Enable the solr_cache_stats_options parameter in dse.yaml and set the other options as required.

The solr_cache_stats_options object records current and cumulative cache statistics.

The following diagnostic tables collect cache statistics:

Filter cache statistics
Record core-specific query result cache statistics over time.
Query result cache statistics
Record core-specific query result cache statistics over time.

All objects are disabled by default.

dse.yaml

The location of the dse.yaml file depends on the type of installation:

Package installations	/etc/dse/dse.yaml
Tarball installations	`installation_location`/resources/dse/conf/dse.yaml

Procedure

In the dse.yaml file, under the solr_cache_stats_optionsparameter, change enabled to true and set the other options as required.

# Solr cache statistics options
solr_cache_stats_options:
    enabled: true
    ttl_seconds: 604800
    refresh_rate_ms: 60000

All objects are disabled by default.

Table 1. Options
Options	Determines
refresh_rate_ms	Period (in milliseconds) between sample recordings for periodically updating statistics like the solr_result_cache_stats.
enabled	Whether the object is enabled at start up.
ttl_seconds	How many seconds a record survives before it is expired from the performance object.