问题
I am using spring 3.1.0, com.springsource.com.caucho-3.2.1.jar and tomcat-6.0.33 both sides (client/server). All the remote service calls are working fine without any issues except long time taking services(more then 9/10 minutes).
I am using Spring-Security to protect remote calls.
I have created a new remote service that takes approx 30 minutes to make a response to client in real schenerio. The service works perfectly if time taken of execution is less then 9.xx/10 minutes but after reaching to 9.xx/10 minutes, I am getting Connection reset on my Hessian Client.
Client configuration
<bean id="someService" class="org.springframework.remoting.caucho.HessianProxyFactoryBean">
<property name="serviceUrl" value="http://hostname:8080/remoting/someService"/>
<property name="serviceInterface" value="com.SomeService"/>
<property name="username" value="${service.username}"/>
<property name="password" value="${service.password}"/>
</bean>
Server configuration
<bean id="someService" class="com.SomeService" />
<bean name="/someService" class="org.springframework.remoting.caucho.HessianServiceExporter">
<property name="service" ref="someService" />
<property name="serviceInterface" value="com.SomeService" />
</bean>
Client side - Stack Trace:
2013-Feb-28 17:48:19 DEBUG [http-8080-1] com.SomeService:85 - Calling Some Service
2013-Feb-28 17:58:16 ERROR [http-8080-1] com.SomeService:113 -
org.springframework.remoting.RemoteConnectFailureException:
Cannot connect to Hessian remote service at [http://hostname:8080/remoting/someService];
nested exception is com.caucho.hessian.client.HessianConnectionException:
500: java.net.SocketException: Connection reset
at org.springframework.remoting.caucho.HessianClientInterceptor.convertHessianAccessException(HessianClientInterceptor.java:262)
Server side - Tomcat (localhost.log)
SEVERE: Servlet.service() for servlet [remoting] in context with path [/JTService]
threw exception [Hessian skeleton invocation failed; nested exception is
ClientAbortException: java.net.SocketException: Connection reset] with root cause
java.net.SocketException: Connection reset
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:96)
I tried to set 30 minutes value of readTimeout available under HessianProxyFactoryBean but getting the same exception after 9.xx/10 minutes. However when i tried with readTimeout 2 minutes I am getting Read timed out after 2 minutes.
After setting readTimeout to 2 minutes I am getting :
2013-Feb-28 17:44:10 ERROR [http-8080-1] com.SomeService:113 - org.springframework.remoting.RemoteConnectFailureException:
Cannot connect to Hessian remote service at [http://hostname:8080/remoting/someService];
nested exception is com.caucho.hessian.client.HessianConnectionException: 500: java.net.SocketTimeoutException: Read timed out
org.springframework.remoting.RemoteConnectFailureException:
Cannot connect to Hessian remote service at [http://hostname:8080/remoting/someService];
nested exception is com.caucho.hessian.client.HessianConnectionException: 500: java.net.SocketTimeoutException: Read timed out
As Like readTimeout I did'nt see and setting related to connection timeout under HessianProxyFactoryBean.
Please suggest what to do?
回答1:
After some debugging, I found that my Linux / CentOS server was closing the network connection after some minutes. Connection timeout issue resolved after increasing connection keepalive time under */proc/sys/net/ipv4/tcp_keepalive_time*.
Linux console sample output :
Shows keepalive time in seconds
[root@hostname ~]# cat /proc/sys/net/ipv4/tcp_keepalive_time
7200
Use following command to increase the value
[root@hostname ~]# echo "21600" > /proc/sys/net/ipv4/tcp_keepalive_time
Hope this helps others too
来源:https://stackoverflow.com/questions/15154581/spring-hessian-client-socket-connection-reset