Examples with ForceMergeResponse org.elasticsearch.action.admin.indices.forcemerge.ForceMergeResponse used on opensource projects

Example 6 with ForceMergeResponse

use of org.elasticsearch.action.admin.indices.forcemerge.ForceMergeResponse in project elasticsearch by elastic.

the class IndexingMemoryControllerTests method testDeletesAloneCanTriggerRefresh.

// #10312
public void testDeletesAloneCanTriggerRefresh() throws Exception {
    createIndex("index", Settings.builder().put("index.number_of_shards", 1).put("index.number_of_replicas", 0).put("index.refresh_interval", -1).build());
    ensureGreen();
    IndicesService indicesService = getInstanceFromNode(IndicesService.class);
    IndexService indexService = indicesService.indexService(resolveIndex("index"));
    IndexShard shard = indexService.getShardOrNull(0);
    assertNotNull(shard);
    for (int i = 0; i < 100; i++) {
        String id = Integer.toString(i);
        client().prepareIndex("index", "type", id).setSource("field", "value").get();
    }
    // Force merge so we know all merges are done before we start deleting:
    ForceMergeResponse r = client().admin().indices().prepareForceMerge().setMaxNumSegments(1).execute().actionGet();
    assertNoFailures(r);
    // Make a shell of an IMC to check up on indexing buffer usage:
    Settings settings = Settings.builder().put("indices.memory.index_buffer_size", "1kb").build();
    // TODO: would be cleaner if I could pass this 1kb setting to the single node this test created....
    IndexingMemoryController imc = new IndexingMemoryController(settings, null, null) {

        @Override
        protected List<IndexShard> availableShards() {
            return Collections.singletonList(shard);
        }

        @Override
        protected long getIndexBufferRAMBytesUsed(IndexShard shard) {
            return shard.getIndexBufferRAMBytesUsed();
        }

        @Override
        protected void writeIndexingBufferAsync(IndexShard shard) {
            // just do it sync'd for this test
            shard.writeIndexingBuffer();
        }

        @Override
        protected Cancellable scheduleTask(ThreadPool threadPool) {
            return null;
        }
    };
    for (int i = 0; i < 100; i++) {
        String id = Integer.toString(i);
        client().prepareDelete("index", "type", id).get();
    }
    final long indexingBufferBytes1 = shard.getIndexBufferRAMBytesUsed();
    imc.forceCheck();
    // We must assertBusy because the writeIndexingBufferAsync is done in background (REFRESH) thread pool:
    assertBusy(new Runnable() {

        @Override
        public void run() {
            try (Engine.Searcher s2 = shard.acquireSearcher("index")) {
                // 100 buffered deletes will easily exceed our 1 KB indexing buffer so it should trigger a write:
                final long indexingBufferBytes2 = shard.getIndexBufferRAMBytesUsed();
                assertTrue(indexingBufferBytes2 < indexingBufferBytes1);
            }
        }
    });
}