public BulkProcessor createBulkProcessor(int bulkActions,
                                             int flushInterval,
                                             int concurrentRequests,
                                             int batchOfBytes) {
        return BulkProcessor.builder()
                            .bulkActions(bulkActions)
                            .batchOfBytes(batchOfBytes)
                            .flushInterval(Duration.ofSeconds(flushInterval))
                            .concurrentRequests(concurrentRequests)
                            .build(es);
    }
Search by ids with index alias, when can not locate the physical index.
Otherwise, recommend use method {@link #ids}
@param indexName Index alias name or physical name
@param ids ID list
@return SearchResponse
@since 9.2.0 this method was ids
oap-server/server-library/library-client/src/main/java/org/apache/skywalking/oap/server/library/client/elasticsearch/ElasticSearchClient.java