Shard transport options for DSE Search/Solr communications | DataStax Enterprise 4.0 Documentation
Available in DataStax Enterprise 4.0 is a custom, TCP-based communications layer for Solr. The new communications layer is an alternative to the default HTTP-based, Tomcat-backed interface, which customers say is slow and resource intensive. The new communications layer improves Solr inter-node communications in several ways:
- Lowers latency
- Reduces resource consumption
- Increases throughput even while handling thousands of concurrent requests
- Provides nonblocking I/O processing
To avoid distributed deadlock during queries, switch from the HTTP-based communications to the new non-blocking communications layer.
The TCP-based communications layer for Solr supports client-to-node and node-to-node encryption using SSL, but does not support Kerberos.
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