private IndexWriter createWriter() throws IOException {
IndexWriter indexWriter = null;
try {
// release locks when started
if (IndexWriter.isLocked(store.directory())) {
logger.warn("shard is locked, releasing lock");
IndexWriter.unlock(store.directory());
}
boolean create = !IndexReader.indexExists(store.directory());
indexWriter =
new IndexWriter(
store.directory(),
analysisService.defaultIndexAnalyzer(),
create,
deletionPolicy,
IndexWriter.MaxFieldLength.UNLIMITED);
indexWriter.setMergeScheduler(mergeScheduler.newMergeScheduler());
indexWriter.setMergePolicy(mergePolicyProvider.newMergePolicy(indexWriter));
indexWriter.setSimilarity(similarityService.defaultIndexSimilarity());
indexWriter.setRAMBufferSizeMB(indexingBufferSize.mbFrac());
indexWriter.setTermIndexInterval(termIndexInterval);
} catch (IOException e) {
safeClose(indexWriter);
throw e;
}
return indexWriter;
}
