The settings were straightforward enough, and the job would look like it was finding content, but the job would return only one document (that’s “row” in db-speak).

It wasn’t anything to do with the JDBC driver, permissions or the SQL select statement which had a WHERE clause. It was an issue with one of the fields. By testing the query one line at a time, all string data types returned all records, but one number field consistently caused the job to fail.

The solr.log explained the issue:

2015-12-09T11:50:40,786 – ERROR [qtp355629945-19:SolrException@139] – {collection=dg, core=dg_shard1_replica1, node_name=10.246.71.13:8983_solr, replica=core_node1, shard=shard1} – org.apache.solr.common.SolrException: ERROR: [doc=a596f774-7289-4d03-802b-e1ca4945c9bc] Error adding field ‘NPINumber’=’1.174598122E9’ msg=For input string: “1.174598122E9″

It was a float field in the data source, so that’s what Fusion would try to return and fail. Why was the number a float? Who knows.

Solution

Changing it to a “int” fixed the problem. That’s really what the field was anyhow – that or a string in this case.