Internet UDP port 8983 is commonly used by Apache Solr, an open-source search platform built on Apache Lucene. Solr uses this port for inter-node communication in SolrCloud mode, which is a distributed approach to data management and processing. It is also used for the Solr HTTP API, which allows users to interact with the Solr server. This port is not officially registered with IANA for this use, but it is the default port used by Solr.
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