2017-12-03 21 views
0

我正在嘗試使用不同配置的Tomcat。啓用執行人配置在service.xml中如下Tomcat ThreadPool無法正常工作

<!--The connectors can use a shared executor, you can define one or more named thread pools--> 
<Executor name="tomcatThreadPool" namePrefix="catalina-exec-" 
maxQueueSize="1" daemon="false" 
    maxThreads="1" minSpareThreads="1"/> 

而且在下面Get方法有意添加線程睡眠:

@Path("/contact") 
@Slf4j 
@Singleton 
public class ContactDropboxService { 

    private ContactDAO contactDAO; 

    private NotificationPublisher notificationPublisher; 

    public ContactDropboxService() { 
     ApplicationContext context = new ClassPathXmlApplicationContext("Spring-Module.xml"); 
     this.contactDAO = (ContactDAO) context.getBean("contactDAO"); 
     this.notificationPublisher = (NotificationPublisher) context.getBean("notificationPublisher"); 
    } 

    @GET 
    public String greet() throws InterruptedException { 
     log.info("Welcome to InBhiwadi contact services! {}", Thread.currentThread().getId()); 
     Thread.sleep(10000); 
     return "Welcome to InBhiwadi contact services"; 
    } 
} 

我期待這第二個請求將被丟棄,如果它到達之前首先是處理。在日誌中,我檢查了所有請求正在並行處理。

INFO [http-nio-8080-exec-10] (ContactDropboxService.java:38) - Welcome to InBhiwadi contact services! 27 
INFO [http-nio-8080-exec-2] (ContactDropboxService.java:38) - Welcome to InBhiwadi contact services! 19 
INFO [http-nio-8080-exec-5] (ContactDropboxService.java:38) - Welcome to InBhiwadi contact services! 22 
INFO [http-nio-8080-exec-3] (ContactDropboxService.java:38) - Welcome to InBhiwadi contact services! 20 
INFO [http-nio-8080-exec-4] (ContactDropboxService.java:38) - Welcome to InBhiwadi contact services! 21 
INFO [http-nio-8080-exec-6] (ContactDropboxService.java:38) - Welcome to InBhiwadi contact services! 23 
INFO [http-nio-8080-exec-7] (ContactDropboxService.java:38) - Welcome to InBhiwadi contact services! 24 

請幫我理解,爲什麼ThreadPool(Executor)不工作?

更新1 完成service.xml的情況如下:

<?xml version="1.0" encoding="UTF-8"?> 
<!-- 
    Licensed to the Apache Software Foundation (ASF) under one or more 
    contributor license agreements. See the NOTICE file distributed with 
    this work for additional information regarding copyright ownership. 
    The ASF licenses this file to You under the Apache License, Version 2.0 
    (the "License"); you may not use this file except in compliance with 
    the License. You may obtain a copy of the License at 

     http://www.apache.org/licenses/LICENSE-2.0 

    Unless required by applicable law or agreed to in writing, software 
    distributed under the License is distributed on an "AS IS" BASIS, 
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
    See the License for the specific language governing permissions and 
    limitations under the License. 
--> 
<!-- Note: A "Server" is not itself a "Container", so you may not 
    define subcomponents such as "Valves" at this level. 
    Documentation at /docs/config/server.html 
--> 
<Server port="8005" shutdown="SHUTDOWN"> 
    <Listener className="org.apache.catalina.startup.VersionLoggerListener" /> 
    <!-- Security listener. Documentation at /docs/config/listeners.html 
    <Listener className="org.apache.catalina.security.SecurityListener" /> 
    --> 
    <!--APR library loader. Documentation at /docs/apr.html --> 
    <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> 
    <!-- Prevent memory leaks due to use of particular java/javax APIs--> 
    <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" /> 
    <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> 
    <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" /> 

    <!-- Global JNDI resources 
     Documentation at /docs/jndi-resources-howto.html 
    --> 
    <GlobalNamingResources> 
    <!-- Editable user database that can also be used by 
     UserDatabaseRealm to authenticate users 
    --> 
    <Resource name="UserDatabase" auth="Container" 
       type="org.apache.catalina.UserDatabase" 
       description="User database that can be updated and saved" 
       factory="org.apache.catalina.users.MemoryUserDatabaseFactory" 
       pathname="conf/tomcat-users.xml" /> 
    </GlobalNamingResources> 

    <!-- A "Service" is a collection of one or more "Connectors" that share 
     a single "Container" Note: A "Service" is not itself a "Container", 
     so you may not define subcomponents such as "Valves" at this level. 
     Documentation at /docs/config/service.html 
    --> 
    <Service name="Catalina"> 

    <!--The connectors can use a shared executor, you can define one or more named thread pools--> 
    <Executor name="tomcatThreadPool" namePrefix="catalina-exec-" 
    maxQueueSize="1" daemon="false" 
     maxThreads="1" minSpareThreads="1"/> 


    <!-- A "Connector" represents an endpoint by which requests are received 
     and responses are returned. Documentation at : 
     Java HTTP Connector: /docs/config/http.html 
     Java AJP Connector: /docs/config/ajp.html 
     APR (HTTP/AJP) Connector: /docs/apr.html 
     Define a non-SSL/TLS HTTP/1.1 Connector on port 8080 
    --> 
    <Connector port="8080" protocol="HTTP/1.1" 
       connectionTimeout="20000" 
       redirectPort="8443" /> 
    <!-- A "Connector" using the shared thread pool--> 
    <!-- 
    <Connector executor="tomcatThreadPool" 
       port="8080" protocol="HTTP/1.1" 
       connectionTimeout="20000" 
       redirectPort="8443" /> 
    --> 
    <!-- Define a SSL/TLS HTTP/1.1 Connector on port 8443 
     This connector uses the NIO implementation. The default 
     SSLImplementation will depend on the presence of the APR/native 
     library and the useOpenSSL attribute of the 
     AprLifecycleListener. 
     Either JSSE or OpenSSL style configuration may be used regardless of 
     the SSLImplementation selected. JSSE style configuration is used below. 
    --> 
    <!-- 
    <Connector port="8443" protocol="org.apache.coyote.http11.Http11NioProtocol" 
       maxThreads="150" SSLEnabled="true"> 
     <SSLHostConfig> 
      <Certificate certificateKeystoreFile="conf/localhost-rsa.jks" 
         type="RSA" /> 
     </SSLHostConfig> 
    </Connector> 
    --> 
    <!-- Define a SSL/TLS HTTP/1.1 Connector on port 8443 with HTTP/2 
     This connector uses the APR/native implementation which always uses 
     OpenSSL for TLS. 
     Either JSSE or OpenSSL style configuration may be used. OpenSSL style 
     configuration is used below. 
    --> 
    <!-- 
    <Connector port="8443" protocol="org.apache.coyote.http11.Http11AprProtocol" 
       maxThreads="150" SSLEnabled="true" > 
     <UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" /> 
     <SSLHostConfig> 
      <Certificate certificateKeyFile="conf/localhost-rsa-key.pem" 
         certificateFile="conf/localhost-rsa-cert.pem" 
         certificateChainFile="conf/localhost-rsa-chain.pem" 
         type="RSA" /> 
     </SSLHostConfig> 
    </Connector> 
    --> 

    <!-- Define an AJP 1.3 Connector on port 8009 --> 
    <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> 


    <!-- An Engine represents the entry point (within Catalina) that processes 
     every request. The Engine implementation for Tomcat stand alone 
     analyzes the HTTP headers included with the request, and passes them 
     on to the appropriate Host (virtual host). 
     Documentation at /docs/config/engine.html --> 

    <!-- You should set jvmRoute to support load-balancing via AJP ie : 
    <Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1"> 
    --> 
    <Engine name="Catalina" defaultHost="localhost"> 

     <!--For clustering, please take a look at documentation at: 
      /docs/cluster-howto.html (simple how to) 
      /docs/config/cluster.html (reference documentation) --> 
     <!-- 
     <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/> 
     --> 

     <!-- Use the LockOutRealm to prevent attempts to guess user passwords 
      via a brute-force attack --> 
     <Realm className="org.apache.catalina.realm.LockOutRealm"> 
     <!-- This Realm uses the UserDatabase configured in the global JNDI 
      resources under the key "UserDatabase". Any edits 
      that are performed against this UserDatabase are immediately 
      available for use by the Realm. --> 
     <Realm className="org.apache.catalina.realm.UserDatabaseRealm" 
       resourceName="UserDatabase"/> 
     </Realm> 

     <Host name="localhost" appBase="webapps" 
      unpackWARs="true" autoDeploy="true"> 

     <!-- SingleSignOn valve, share authentication between web applications 
      Documentation at: /docs/config/valve.html --> 
     <!-- 
     <Valve className="org.apache.catalina.authenticator.SingleSignOn" /> 
     --> 

     <!-- Access log processes all example. 
      Documentation at: /docs/config/valve.html 
      Note: The pattern used is equivalent to using pattern="common" --> 
     <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" 
       prefix="localhost_access_log" suffix=".txt" 
       pattern="%h %l %u %t &quot;%r&quot; %s %b" /> 

     </Host> 
    </Engine> 
    </Service> 
</Server> 

回答

2

您還需要配置使用連接器的executor

<Connector executor="tomcatThreadPool" 
      port="8080" protocol="HTTP/1.1" 
      connectionTimeout="20000" 
      redirectPort="8443" /> 
+0

我有這種連接器已經在服務配置.XML。 請檢查更新的問題描述。 –

+0

@KuldeepYadav不,它已被註釋掉。 – Oleg

+0

是的。它的作品:)謝謝@ Oleg –