本篇内容主要讲解“elasticsearch批量入库bulk性能实例测试”,感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“elasticsearch批量入库bulk性能实例测试”吧!
背景
我的需求很简单,就是用httpCilent组件,通过REST批量接口bulk提交一些数据。跑一下代码1W条数据导入完成耗时0.843秒,到这里我本可以高高兴兴的交差了,但是我又干了一件事情,用Java原生客户端跑了1W条数据,发现导入速度是0.359秒。管他呢,完成任务。但是,,但是我纠结了,作为一个有追求,有思想的码农,我纠结了。这个时间差距有点大啊。我就怀疑代码有问题了。我就又用了官方的JEST客户端试了下速度。发现速度也不快啊。然后,我的心理就一直缠绕着一个问题,批量导入哪家强?就做了一系列测试。本来测试个Http就好了,但是,又一个但是。我就根本停不下来了。
测试结果
单位是秒,数据量是1W条,总大小是672 kb。httpClient v1是用最笨的方法写的。V2s是加入了线程池,先初始化Client。速度取了3次的平均值。Java的客户端快的时候有0.2秒,也就是每秒5W多记录。测试10W条记录的时候发生了一点意外XContentBuilder太吃内存了,也就是JSON解析。我的2G内存的渣渣机器,跑不起来。换了服务器给3G内存测试的。测试数据很简单,下面这样。
{"create":{"_index":"nq_test2","_type":"base"}}\n{"name":"value1"}\n
第一组
0.359 java
0.843 httpClient v1
0.593 httpClient v2
0.719 jest
0.581 javascript
0.739 python
0.389 nest (.net客户端)
第二组
10W 条 6825 kb
5.343 python
2.746 httpClient v2
2.145 java
测试结论
http协议的REST接口,总是要比TCP协议的Java原生客户端要慢一些,意外发现是C#的Http组件,性能不错啊。
测试代码
python
def test():
actions=[]
for i in range(1,100001):
actions.append({"_index": 'nq_test2', "_type": "python","_source":{ "name":"value"+str(i)}})
starttime = time.clock()
helpers.bulk(es,actions,chunk_size=50000)
endtime = time.clock()
print "cost = "+str(endtime - starttime)
JS
var client = new elasticsearch.Client({
host: 'http://myes:9200',
sniffOnStart: false,
sniffInterval: 60000,
});
function buildData(){
var actions=[];
for(var i=1;i<=10000;i++){
actions.push({ index: { _index: 'nq_test2', _type: 'js'} });
actions.push({ name: 'value'+i });
}
return actions;
}
function test(){
var actions = buildData();
var beginTime = new Date().getTime();
client.bulk({
body: actions
}, function (err, resp) {
var endTime = new Date().getTime();
//console.info(resp);
$("#costDiv").html('cost = '+(endTime-beginTime)/1000.0);
$("#tookDiv").html('took = '+resp.took);
});
}
Java
public void test(int count) throws IOException{
BulkRequestBuilder bulkRequest = client.prepareBulk();
System.out.println("count ="+count);
for(int i=1;i<=count;i++){
bulkRequest.add(client.prepareIndex("nq_test2", "java")
.setSource(jsonBuilder()
.startObject()
.field("name", "value"+i)
.endObject()
)
);
}
long beginTime = System.currentTimeMillis();
BulkResponse bulkResponse = bulkRequest.execute().actionGet();
if (bulkResponse.hasFailures()) {
System.out.println("erros");
}
long endTime = System.currentTimeMillis();
System.out.println("took ="+bulkResponse.getTookInMillis());
System.out.println("cost = "+(endTime-beginTime)/1000f);
}
Jest
public void test() {
Bulk.Builder builder = new Bulk.Builder()
.defaultIndex("nq_test2")
.defaultType("jest");
for(int i=1;i<=10000;i++){
builder.addAction(new Index.Builder("{\"name\":\"value"+i+"\"}").build());
}
Bulk bulk =builder.build();
try {
long beginTime = System.currentTimeMillis();
JestResult result = client.execute(bulk);
long endTime = System.currentTimeMillis();
System.out.println("cost = "+(endTime-beginTime)/1000f);
System.out.println("took = "+ result.getValue("took"));
} catch (Exception e) {
e.printStackTrace();
}
}
Nest (c#)
private void testBtn_Click(object sender, EventArgs e)
{
var settings = new ConnectionSettings(
new Uri(urlTxt.Text)
);
var Client = new ElasticClient(settings);
var Descriptor = new BulkDescriptor();
Descriptor.FixedPath("nq_test2", "dotnet");
var Count = Convert.ToInt32(numericUpDown1.Value);
foreach (var i in Enumerable.Range(0, Count))
{
Descriptor.Create<Item>(op => op.Document(new Item { name = "value"+i }));
}
var BeginTime = DateTime.Now.Millisecond;
var Result = Client.Bulk(Descriptor);
var EndTime = DateTime.Now.Millisecond;
label1.Text = "cost = "+((EndTime - BeginTime) / 1000f).ToString()+" sec";
label3.Text = "took = " + Result.Took.ToString() + " sec";
}
到此,相信大家对“elasticsearch批量入库bulk性能实例测试”有了更深的了解,不妨来实际操作一番吧!这里是天达云网站,更多相关内容可以进入相关频道进行查询,关注我们,继续学习!