Elasticsearch的Bulk API使用
1、Elasticsearch的Bulk API允許批量提交index和delete請求。如:
(1)用法1
BulkRequestBuilder bulkRequest = client.prepareBulk();
bulkRequest.add(client.prepareIndex("index1", "type1", "id1").setSource(source);
bulkRequest.add(client.prepareIndex("index2", "type2", "id2").setSource(source);
BulkResponse bulkResponse = bulkRequest.execute().actionGet();
(2)用法二
BulkProcessor bulkProcessor = BulkProcessor.builder(
client,
new BulkProcessor.Listener() {
@Override
public void beforeBulk(long executionId,
BulkRequest request) { ... }
@Override
public void afterBulk(long executionId,
BulkRequest request,
BulkResponse response) { ... }
@Override
public void afterBulk(long executionId,
BulkRequest request,
Throwable failure) { ... }
})
.setBulkActions(10000)
.setBulkSize(new ByteSizeValue(1, ByteSizeUnit.GB))
.setFlushInterval(TimeValue.timeValueSeconds(5))
.build();
bulkProcessor.add(new IndexRequest("index1", "type1", "id1").source(source1));
bulkProcessor.add(new DeleteRequest("index2", "type2", "id2");
(3)說明
1)beforeBulk會在批量提交之前執行,可以從BulkRequest中獲取請求資訊request.requests()或者請求數量request.numberOfActions()。
2) 第一個afterBulk會在批量成功後執行,可以跟beforeBulk配合計算批量所需時間。
3)第二個afterBulk會在批量失敗後執行。
4)在例子中,當請求超過10000個(default=1000)或者總大小超過1GB(default=5MB)時,觸發批量提交動作。