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From Pid <...@pidster.com>
Subject Re: Writing to client aborted or client network problems...
Date Mon, 01 Mar 2010 13:09:06 GMT
On 01/03/2010 12:59, Munirathinavel wrote:
>
> Hi to all...
>
> I'm using apache2.2 + tomcat6.0.18 + mod_jk1.2.28 for our portal.While doing
> load test with 20&  more users, I try to access the application through
> browser but pages are getting loaded and in mod_jk.log file I'm getting the
> following message,
>
> [Fri Feb 26 12:50:25 2010][304:728] [info] jk_ajp_common.c (1788): Writing
> to client aborted or client network problems
> [Fri Feb 26 12:50:25 2010][304:728] [info] jk_ajp_common.c (2447): (worker1)
> sending request to tomcat failed (unrecoverable), because of client write
> error (attempt=1)
> [Fri Feb 26 12:50:25 2010]worker1 216.205.107.50 30.218750
> [Fri Feb 26 12:50:25 2010][304:728] [info] mod_jk.c (2608): Aborting
> connection for worker=worker1
>
> 	  I'm using the following files in Tomcat&  Apache.
>
> 	workers.properties:
>
> 		workers.tomcat_home=D:/tomcat6.0.18
> 		workers.java_home=C:/Program Files/Java/jdk1.6.0_16
>
> 	ps=/
>
>
> 	worker.list=worker1
> 			worker.worker1.type=ajp13
> 			worker.worker1.host=xxxxxxxxxxxx
> 			worker.worker1.port=8009
> 			worker.worker1.connection_pool_timeout=600
> 			worker.worker1.connect_timeout=60000
> 			worker.worker1.prepost_timeout=60000
> 			worker.worker1.socket_keepalive=1
> 			worker.worker1.socket_timeout=60
> 			worker.worker1.lbfactor=1
> 	worker.loadbalancer.type=lb
> 	worker.loadbalancer.balance_workers= worker1
> 	worker.inprocess.type=jni
>
> 	server.xml:
> 	<Server port="8006" shutdown="SHUTDOWN">
> 	<Listener className="org.apache.catalina.core.AprLifecycleListener"
> SSLEngine="on" />
> 	<Listener className="org.apache.catalina.core.JasperListener" />
> 	<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"
> />
> 	<Listener
> className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
> 	<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 debug="0" enableLookups="false" port="8009" protocol="AJP/1.3"
> 		 maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
> acceptCount="100"
> 		  minProcessors="5" maxProcessors="100" connectionTimeout="60000"
> disableUploadTimeout="true" redirectPort="8443"/>
> 	<Engine name="Catalina" defaultHost="xxxxxxxxxxxx" debug="0">
> 	<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
> 		     resourceName="UserDatabase"/>
> 	<Host name="xxxxxxxxxxxx"  appBase="gateway"
> 		    unpackWARs="true" autoDeploy="true"
> 		    xmlValidation="false" xmlNamespaceAware="false">
>
> 				<Listener className = "org.apache.jk.config.ApacheConfig"
> workersConfig="conf/workers.properties"
> modJk="D:/Apache2.2/modules/mod_jk.so" jkLog="logs/mod_jk.log"
> jkDebug="info" noRoot="false"/>
> 	</Host>
> 	</Engine>
> 	</Service>
> 	
> 	</Server>
>
> 	context.xml:
> 	<?xml version='1.0' encoding='utf-8'?>
>
> 	
> 	<Context>
>
> 		<WatchedResource>WEB-INF/web.xml</WatchedResource>
> 	<Resource name="jdbc/vehrentDB" auth="Container"
> 	      type="javax.sql.DataSource"
> 		  maxActive="50"
> 	      maxIdle="10"
> 			minIdle="30"
> 		  username="xxxxxxxxxxxx" password="xxxxxxxxxxxx"
> 			driverClassName="com.microsoft.sqlserver.jdbc.SQLServerDriver"
> 		     url="jdbc:sqlserver://xxxxxxxxxxxx:1433;
> 			databaseName=xxxxxxxxxxxx;user=xxxxxxxxxxxx;password=xxxxxxxxxxxx;"
> 	      numTestsPerEvictionRun="15"
> timeBetweenEvictionRunsMillis="900000"
> 		minEvictableIdleTimeMillis="900000"
> 			testWhileIdle="true"
> 			testOnBorrow="false"
> 			removeAbandoned="true"
> 			removeAbandonedTimeout="300"
> 	      logAbandoned="true"
> 		/>
> 		<Resource name="jdbc/empowerDB" auth="Container"
> 	      type="javax.sql.DataSource"
> 			maxActive="8"
> 			maxIdle="4"
> 			minIdle="2"
> 			username="xxxxxxxxxxxx" password="xxxxxxxxxxxx"
> 			driverClassName="com.microsoft.sqlserver.jdbc.SQLServerDriver"
> 	
> url="jdbc:sqlserver://xxxxxxxxxxxx:1433;databaseName=xxxxxxxxxxxx;user=xxxxxxxxxxxx;password=xxxxxxxxxxxx;"
> 		    numTestsPerEvictionRun="15"
> 			timeBetweenEvictionRunsMillis="900000"
> 		    minEvictableIdleTimeMillis="900000"
> 			testWhileIdle="true"
> 	      testOnBorrow="false"
> 		    removeAbandoned="true"
> 			removeAbandonedTimeout="300"
> 	      logAbandoned="true"
> 		/>
> 	</Context>
>
> 	virtual-host.conf:
> 	NameVirtualHost *:80
> 	<VirtualHost *:80>
> 	ServerAdmin xxxxxxxxxx
> 	    DocumentRoot "D:/Apache2.2/htdocs/gateway"
> 	    ServerName xxxxxxxxxx
> 	    ServerAlias xxxxxxxxxx
> 	    ErrorLog "logs/gateway-error.log"
> 	    CustomLog "logs/gateway-access.log" common
>
> 	    JkMount /* worker1
> 	    JkUnMount /*js/*.js worker1
> 	    JkUnMount /*.jpeg worker1
> 	    JkUnMount /*.png worker1
> 	    JkUnMount /*.gif worker1
> 	    JkUnMount /*.html worker1
> 	    JkUnMount /*.jpg worker1
> 	    JkUnMount /*.css worker1
> 	    JkUnMount /*.swf worker1
> 	</VirtualHost>
> 	
> 	I've been struggling with this for a week.Can anyone please tell me
> what can i do to get rid of that problem&  make my application accessible
> for 20&  more concurrent users.

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