java – JVM Tomcat Spring MVC应用程序超时等待连接池

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我在tomcat上运行的spring应用程序打开了很多与localhost的连接,如下所示：

tcp6       1      0 localhost:4431          localhost:44178         CLOSE_WAIT  2393/java       
tcp6       1      0 localhost:4431          localhost:44279         CLOSE_WAIT  2393/java       
tcp6       1      0 localhost:4431          localhost:44264         CLOSE_WAIT  2393/java       
tcp6       1      0 localhost:4431          localhost:44160         CLOSE_WAIT  2393/java       
tcp6       1      0 localhost:4431          localhost:44224         CLOSE_WAIT  2393/java    

并导致超时等待连接池.

你知道连接是什么吗？

我的server.xml看起来像这样：

    <?xml version='1.0' encoding='utf-8'?>
    <Server port="8005" shutdown="SHUTDOWN">
      <Listener className="org.apache.catalina.core.JasperListener" />
      <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
      <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
      <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />
      <Realm className="org.apache.catalina.realm.MemoryRealm" />
      <GlobalNamingResources>
        <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>
      <Service name="Catalina">
        <Connector  port="8080" protocol="HTTP/1.1"
                    compression="on"
                    compressionMinSize="2048"
                    noCompressionUserAgents="gozilla, traviata"
                    compressableMimeType="
                        text/html,
                        text/xml,
                        text/plain,
                        text/css,
                        text/javascript,
                        text/json,
                        application/x-javascript,
                        application/javascript,
                        application/json,
                        application/x-font-woff,
                        image/png,
                        image/jpeg,
                        image/gif,
                        image/svg+xml
                    " 
                    connectionTimeout="20000"
                    URIEncoding="UTF-8"
                    maxThreads="10000"
                    maxConnections="-1"
                    redirectPort="4431" />
        <Connector  port="4431" protocol="HTTP/1.1"
                    compression="on"
                    compressionMinSize="2048"
                    noCompressionUserAgents="gozilla, traviata"
                    compressableMimeType="
                        text/html,
                        text/xml,
                        text/plain,
                        text/css,
                        text/javascript,
                        text/json,
                        application/x-javascript,
                        application/javascript,
                        application/json,
                        application/x-font-woff,
                        image/png,
                        image/jpeg,
                        image/gif,
                        image/svg+xml
                    "
                    connectionTimeout="20000"
                    URIEncoding="UTF-8"
                    maxThreads="10000"
                    maxConnections="-1"
                    scheme="https"
                    secure="true"
                    clientAuth="false"
                    proxyPort="443" />
        <Engine name="Catalina" defaultHost="localhost">
          <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>
          <Realm className="org.apache.catalina.realm.LockOutRealm">
            <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
                   resourceName="UserDatabase"/>
          </Realm>
          <Host name="localhost"  appBase="webapps"
                unpackWARs="true" autoDeploy="true">
            <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
                   prefix="localhost_access_log." suffix=".txt"
                   pattern="%h %A %u %t &quot;%r&quot; %s %b &quot;%{Referer}i&quot; &quot;%{User-Agent}i&quot;" />
          </Host>
        </Engine>
      </Service>
    </Server>

端口4431是主连接器的端口.似乎应用程序调用自己.

解决方法:

看来你的SSL配置没有以tomcat结尾,那么你可以完全删除4431端口的连接器,并用proxyPort =“443”替换8080连接器的redirectPort属性

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