![]() If the document already exists in Solr, it would just be overwritten (determined by the unique id). Writes pointers to all segments belonging to this commit into the Lucene flushes its entire RAM buffer into segments, syncs them and Or you run incremental indexing in production here you can see the Writing documents to disk produces an entire IndexWriter it gets indexed into the memory and once we have reached aĬertain threshold (max buffered documents or RAM buffer size) we writeĪll the documents from the main memory to disk you can find out moreĪbout this here and here. One of the principles in Lucene since day one is the write-once If the Solr crashes when the documents are in memory, you may lose these documents. Only on commit would the Document be persisted in the index. In short, it is similar to the DB commit, unless you commit the transactions, the document add to Solr are just held in Memory. That is I get the exact result I intended to have. And even if I remove mit() i do not get any problem while searching. So my question is why mit() causes the exception. so i removed mit() : if (indexWriter.getConfig().getOpenMode() = ) Now I thought since i am committing the index every time, it might cause a write lock. IndexWriter.updateDocument(new Term("path", path), doc) we use updateDocument instead to replace the old one matching the exact Existing index (an old copy of this document may have been indexed) so New index, so we just add the document (no old document can be there): I get the this exception when i try to this code .LockObtainFailedException: Lock obtain timed out:Ĭode if (indexWriter.getConfig().getOpenMode() = ) All of this is done using multi-threading. ![]() I have written the code to open each file, create an index for each line and then store each line using Apache lucene. I am trying to index a large set of log files obtained from a tomcat server.
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