我使用卡桑德拉JMeter的插件https://github.com/slowenthal/jmeter-cassandra#cassandra-jmeter-plugin-for-cassandra我已经集成在Apache的JMeter2.9负载测试CassandraDB用JMeter
我有一个包含2数据中心和每个数据中心2个节点的群集卡桑德拉。
JMeter的:
卡桑德拉连接:
contact points : 192.168.1.50,192.168.1.51,192.168.1.52
keyspace : test_db
卡桑德拉采样
CQL Query : select * from test_db.feed_yogesh limit 1000;
Consistency Level : QUORUM
测试场景
1.Fetch 1000只记录1个用户
User/Thread : 1
Ramp-Up-Period : 0
Generate Summary Results = 1 in 2.2s = 0.5/s Avg: 2180 Min: 2180 Max: 2180 Err: 0 (0.00%)
2.Fetch 1000个记录1000的用户
我想测试为多个用户同时因此我加斜坡上升期间为0,这根据JMeter将立即启动所有用户。
User/Thread : 1000
RampUp Period : 0
Summary Results = 1000 in 18s = 56.1/s Avg: 6857 Min: 5000 Max: 17044 Err: 987 (98.70%)
它并开始了我的所有用户,但只有4-5用户返回成功,其余全部给我错误,如
All host(s) tried for query failed (tried: /192.168.1.50:9042 (com.datastax.driver.core.BusyConnectionException))
但是当我测试相同的1000用户给予的加速期300返回所有成功。
User/Thread : 1000
RampUp Period : 300
Generate Summary Results = 1000 in 301s = 3.3/s Avg: 519 Min: 255 Max: 1811 Err: 0 (0.00%)
Cassndra Sampler.jmx
<?xml version="1.0" encoding="UTF-8"?>
<jmeterTestPlan version="1.2" properties="2.4" jmeter="2.9 r1437961">
<hashTree>
<TestPlan guiclass="TestPlanGui" testclass="TestPlan" testname="Test Plan" enabled="true">
<stringProp name="TestPlan.comments"></stringProp>
<boolProp name="TestPlan.functional_mode">false</boolProp>
<boolProp name="TestPlan.serialize_threadgroups">false</boolProp>
<elementProp name="TestPlan.user_defined_variables" elementType="Arguments" guiclass="ArgumentsPanel" testclass="Arguments" testname="User Defined Variables" enabled="true">
<collectionProp name="Arguments.arguments"/>
</elementProp>
<stringProp name="TestPlan.user_define_classpath"></stringProp>
</TestPlan>
<hashTree>
<ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="Thread Group" enabled="true">
<stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
<elementProp name="ThreadGroup.main_controller" elementType="LoopController" guiclass="LoopControlPanel" testclass="LoopController" testname="Loop Controller" enabled="true">
<boolProp name="LoopController.continue_forever">false</boolProp>
<stringProp name="LoopController.loops">1</stringProp>
</elementProp>
<stringProp name="ThreadGroup.num_threads">1000</stringProp>
<stringProp name="ThreadGroup.ramp_time">0</stringProp>
<longProp name="ThreadGroup.start_time">1420788860000</longProp>
<longProp name="ThreadGroup.end_time">1420788860000</longProp>
<boolProp name="ThreadGroup.scheduler">false</boolProp>
<stringProp name="ThreadGroup.duration"></stringProp>
<stringProp name="ThreadGroup.delay"></stringProp>
</ThreadGroup>
<hashTree>
<org.apache.cassandra.jmeter.config.CassandraConnection guiclass="TestBeanGUI" testclass="org.apache.cassandra.jmeter.config.CassandraConnection" testname="Cassandra Connection" enabled="true">
<stringProp name="contactPoints">192.168.1.50,192.168.1.51,192.168.1.52</stringProp>
<stringProp name="keyspace">test_db</stringProp>
<stringProp name="loadBalancer">Default</stringProp>
<stringProp name="localDataCenter"></stringProp>
<stringProp name="password"></stringProp>
<stringProp name="sessionName">mydatabase</stringProp>
<stringProp name="username"></stringProp>
</org.apache.cassandra.jmeter.config.CassandraConnection>
<hashTree/>
<org.apache.cassandra.jmeter.sampler.CassandraSampler guiclass="TestBeanGUI" testclass="org.apache.cassandra.jmeter.sampler.CassandraSampler" testname="Cassandra Sampler" enabled="true">
<stringProp name="batchSize"></stringProp>
<stringProp name="consistencyLevel">QUORUM</stringProp>
<stringProp name="query">select * from test_db.feed_yogesh limit 1000;</stringProp>
<stringProp name="queryArguments">Running</stringProp>
<stringProp name="queryType">Simple Statement</stringProp>
<stringProp name="resultVariable"></stringProp>
<stringProp name="sessionName">mydatabase</stringProp>
<stringProp name="variableNames">VARCHAR</stringProp>
</org.apache.cassandra.jmeter.sampler.CassandraSampler>
<hashTree/>
<ResultCollector guiclass="ViewResultsFullVisualizer" testclass="ResultCollector" testname="View Results Tree" enabled="true">
<boolProp name="ResultCollector.error_logging">false</boolProp>
<objProp>
<name>saveConfig</name>
<value class="SampleSaveConfiguration">
<time>true</time>
<latency>true</latency>
<timestamp>true</timestamp>
<success>true</success>
<label>true</label>
<code>true</code>
<message>true</message>
<threadName>true</threadName>
<dataType>true</dataType>
<encoding>false</encoding>
<assertions>true</assertions>
<subresults>true</subresults>
<responseData>false</responseData>
<samplerData>false</samplerData>
<xml>false</xml>
<fieldNames>false</fieldNames>
<responseHeaders>false</responseHeaders>
<requestHeaders>false</requestHeaders>
<responseDataOnError>false</responseDataOnError>
<saveAssertionResultsFailureMessage>false</saveAssertionResultsFailureMessage>
<assertionsResultsToSave>0</assertionsResultsToSave>
<bytes>true</bytes>
</value>
</objProp>
<stringProp name="filename"></stringProp>
</ResultCollector>
<hashTree/>
<ResultCollector guiclass="SummaryReport" testclass="ResultCollector" testname="Summary Report" enabled="true">
<boolProp name="ResultCollector.error_logging">false</boolProp>
<objProp>
<name>saveConfig</name>
<value class="SampleSaveConfiguration">
<time>true</time>
<latency>true</latency>
<timestamp>true</timestamp>
<success>true</success>
<label>true</label>
<code>true</code>
<message>true</message>
<threadName>true</threadName>
<dataType>true</dataType>
<encoding>false</encoding>
<assertions>true</assertions>
<subresults>true</subresults>
<responseData>false</responseData>
<samplerData>false</samplerData>
<xml>false</xml>
<fieldNames>false</fieldNames>
<responseHeaders>false</responseHeaders>
<requestHeaders>false</requestHeaders>
<responseDataOnError>false</responseDataOnError>
<saveAssertionResultsFailureMessage>false</saveAssertionResultsFailureMessage>
<assertionsResultsToSave>0</assertionsResultsToSave>
<bytes>true</bytes>
</value>
</objProp>
<stringProp name="filename"></stringProp>
</ResultCollector>
<hashTree/>
</hashTree>
</hashTree>
</hashTree>
</jmeterTestPlan>
我很困惑,这是否意味着多个用户的cannnot读取数据的同时我们强制需要添加斜坡向上周期值。
我认为这是一个低配置问题,因为当我尝试1000线程/用户加速0和100记录的限制一切工作完全正常,但是当我将限制增加到1000很多线程失败。 – Yasmeen