Log Search: indexed string field could be too large for audit_logs

2018-05-29 19:33:18,434 [qtp225493257-718281] ERROR [c:audit_logs s:shard4 r:core_node6 x:audit_logs_shard4_replica1] org.apache.solr.common.SolrException (SolrException.java:148) - org.apache.solr.common.SolrException: Exception writing document id 8c5deae9-c1b7-4ebf-9981-1ac92f1d2f84 to the index; possible analysis error: Document contains at least one immense term in field="action" (whose UTF8 encoding is longer than the max length 32766), all of which were skipped.  Please correct the analyzer to not produce such terms.  The prefix of the first immense term is: '[105, 110, 115, 116, 97, 108, 108, 101, 100, 58, 32, 97, 108, 108, 32, 115, 101, 114, 118, 105, 99, 101, 115, 32, 111, 110, 32, 97, 108, 108]...', original message: bytes can be at most 32766 in length; got 106331. Perhaps the document has an indexed string field (solr.StrField) which is too large