On 4/20/2014 11:12 AM, Candygram For Mongo wrote: > We have tried using fetchSize and we still got the same out of memory > errors.
It needs to be batchSize, not fetchSize. I mentioned too much of the internal details. The fetchSize name is only important if you're writing source code that uses JDBC. http://wiki.apache.org/solr/DataImportHandler#Configuring_JdbcDataSource Thanks, Shawn