We are using Solr out of the box, with only a couple of changes in the solconfig file.
We are running a MapReduce job to import into Solr. Every map creates one document and used to add and commit it to Solr. We got org.apache.solr.common.SolrException: Error_opening_new_searcher_exceeded_limit_of_maxWarmingSearchers4_try_again_later, which we solved by removing the commit statment from the MR job and added auto-commit in solrconfig. We reran the job and got another exception: java.io.IOException: cannot read directory org.apache.lucene.store.FSDirectory@/home/solr/src/apache-solr-nightly/example/solr/data/index: list() returned null followed by: SEVERE: org.apache.lucene.store.LockObtainFailedException: Lock obtain timed out: SingleInstanceLock: write.lock This was happening when the number of mappers writing to solr was 6, we lowered the number of inputters to 3 and everything worked fine. Does anyone know what happens, and how we can use more than 3 input sources at the same time? Regards Erik
