Collecting cluster summary diagnostics

The following cluster summary diagnostic tables collect statistics at a cluster-wide level:

  • cluster_snapshot

    Per node system metrics.

  • dc_snapshot

    Aggregates node_snapshot data at the datacenter level.

  • node_snapshot

    Aggregates node_snapshot data for the whole cluster.


  1. To enable collecting cluster summary diagnostics using the DataStax Enterprise Performance Service:

  2. Edit the dse.yaml file.

  3. In the dse.yaml file, set the enabled option for cluster_summary_stats_options to true.

    # Cluster summary stats options
        enabled: true
        refresh_rate_ms: 10000
  4. (Optional) To control how often the statistics are refreshed, increase or decrease the refresh_rate_ms option in dse.yaml.

    The refresh_rate_ms specifies the length of the sampling period, that is, the frequency with which this data is updated.

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