使用阿里云服务器部署了三个工程，突然其中两个访问不了。

TommyWu01 2013-12-14 11:42:33

使用阿里云服务器，同时部署了三个工程。

今天上午突然其中一个工程可以访问，另外两个无法请求。

在阿里云服务器平台重启了我们的服务器之后，便都可以请求了。

问题是解决了，但不知道具体是什么原因造成的？

求各位大侠指点迷津，谢谢、！

具体配置如下：

context.xml

<?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.

-->

<!-- The contents of this file will be loaded for each web application -->

<Context>



    <!-- Default set of monitored resources -->

    <WatchedResource>WEB-INF/web.xml</WatchedResource>



    <!-- Uncomment this to disable session persistence across Tomcat restarts -->

    <!--

    <Manager pathname="" />

    -->



    <!-- Uncomment this to enable Comet connection tacking (provides events

         on session expiration as well as webapp lifecycle) -->

    <!--

    <Valve className="org.apache.catalina.valves.CometConnectionManagerValve" />

    -->

 

 <Resource name="jdbc/xishu"

	  auth="Container"

	  type="javax.sql.DataSource"

	  maxActive="100"

	  maxIdle="30"

	  maxWait="10000"

	  username="root"

	  password=""

	  driverClassName="com.mysql.jdbc.Driver"

	  url="jdbc:mysql://localhost:3306/xishu?autoReconnect=true"/> 



	

	

	

</Context>

server.xml

<?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">

  <!-- 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" />

  <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->

  <Listener className="org.apache.catalina.core.JasperListener" />

  <!-- 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-"

        maxThreads="150" minSpareThreads="4"/>

    -->





    <!-- A "Connector" represents an endpoint by which requests are received

         and responses are returned. Documentation at :

         Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)

         Java AJP  Connector: /docs/config/ajp.html

         APR (HTTP/AJP) Connector: /docs/apr.html

         Define a non-SSL HTTP/1.1 Connector on port 8080

    -->

    <Connector port="80" 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 HTTP/1.1 Connector on port 8443

         This connector uses the JSSE configuration, when using APR, the

         connector should be using the OpenSSL style configuration

         described in the APR documentation -->

    <!--

    <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true"

               maxThreads="150" scheme="https" secure="true"

               clientAuth="false" sslProtocol="TLS" />

    -->



    <!-- 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"-->



	  <Host name="aa.xishu.cn"  appBase="D:\xishu\xishu_aa"

            unpackWARs="true" autoDeploy="true">

		<Context path="/" docBase="D:\xishu\xishu_aa" reloadable="true" crossContext="true"/>

		<Context path="/uploadfiles" docBase="D:\xishu\uploadfiles" reloadable="true" crossContext="true"/>        

        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"

               prefix="localhost_access_log." suffix=".txt"

               pattern="%h %l %u %t "%r" %s %b" />



      </Host>    

	  

	  <Host name="bb.xishu.cn"  appBase="D:\xishu\xishu_bb"

            unpackWARs="true" autoDeploy="true">

		<Context path="/" docBase="D:\xishu\xishu_bb" reloadable="true" crossContext="true"/>

		<Context path="/uploadfiles" docBase="D:\xishu\uploadfiles" reloadable="true" crossContext="true"/>   

		<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"

               prefix="localhost_access_log." suffix=".txt"

               pattern="%h %l %u %t "%r" %s %b" />		

      </Host> 



	   <Host name="cc.xishu.cn"  appBase="D:\xishu\xishu_cc"

            unpackWARs="true" autoDeploy="true">

		<Context path="/" docBase="D:\xishu\xishu_cc" reloadable="true" crossContext="true"/>

		<Context path="/uploadfiles" docBase="D:\xishu\uploadfiles" reloadable="true" crossContext="true"/>   

		<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"

               prefix="localhost_access_log." suffix=".txt"

               pattern="%h %l %u %t "%r" %s %b" />

      </Host>  

	  

    </Engine>

  </Service>

</Server>