Set the location of search indexes

Data that is added to a DSE Search node is locally indexed on the DSE node. Data changes to one node also apply to the other nodes. DSE Search has its own indexing documents. You can control where the DSE Search indexing documents are saved.

It is critical that you locate DSE Cassandra transactional data and Solr-based DSE Search data on separate Solid State Drives (SSDs). Failure to do so will very likely result in sub-optimal search indexing performance.

By default, each DSE Search index is saved in solr_data_dir/keyspace_name.table_name or as specified by the system property.

The dataDir parameter in the solrconfig.xml file is not supported.


  1. Shut down the search node.

  2. Move the directory to the new location.

  3. Specify the location:

    Option Description

    From the command line

    To dynamically change:

    cd <installation_location> &&
    bin/dse cassandra -s<My_data_dir>

    In dse.yaml

    To permanently change:

    solr_data_dir: My_data_dir

    Where <My_data_dir> is /var/lib/cassandra/ For example:

    solr_data_dir: /var/lib/cassandra/
  4. Start the node.

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