mina2.0 运行一段时间后出现Too many open files错误

[itdana]

2011-10-14 10:00:41.299 [Sgip_Handler.java:333] - Failed to create a new instance of org.apache.mina.transport.socket.nio.
org.apache.mina.core.RuntimeIoException: Failed to create a new instance of org.apache.mina.transport.socket.nio.NioProcessor
at org.apache.mina.core.service.SimpleIoProcessorPool.<init>(SimpleIoProcessorPool.java:171) [mina-core-2.0.0-RC1.jar:na]
at org.apache.mina.core.service.SimpleIoProcessorPool.<init>(SimpleIoProcessorPool.java:104) [mina-core-2.0.0-RC1.jar:na]
at org.apache.mina.core.polling.AbstractPollingIoConnector.<init>(AbstractPollingIoConnector.java:93) [mina-core-2.0.0-RC1.jar:na]
at org.apache.mina.transport.socket.nio.NioSocketConnector.<init>(NioSocketConnector.java:55) [mina-core-2.0.0-RC1.jar:na]
at com.techcenter.gateway.protocol.sgip.Sgip_Handler.connect(Sgip_Handler.java:309) [tech_standardsm_smsgatewayapi-1.0.0.2-SNAPSHOT.jar:na]
at com.techcenter.gateway.base.AbstractSupport.connect(AbstractSupport.java:36) [tech_standardsm_smsgatewayapi-1.0.0.2-SNAPSHOT.jar:na]
at com.techcenter.gateway.sender.chain.SendIncludeSpeedCommand.execute(SendIncludeSpeedCommand.java:178) [tech_standardsm_smsgatewayapi-1.0.0.2-SNAPSHOT.jar:na]
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191) [commons-chain-1.2.jar:1.2]
at com.techcenter.gateway.sender.SubmitSender.run(SubmitSender.java:49) [tech_standardsm_smsgatewayapi-1.0.0.2-SNAPSHOT.jar:na]
at java.lang.Thread.run(Thread.java:619) [na:1.6.0_14]
Caused by: java.lang.reflect.InvocationTargetException: null
at sun.reflect.GeneratedConstructorAccessor5.newInstance(Unknown Source) [na:na]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) [na:1.6.0_14]
at java.lang.reflect.Constructor.newInstance(Constructor.java:513) [na:1.6.0_14]
at org.apache.mina.core.service.SimpleIoProcessorPool.<init>(SimpleIoProcessorPool.java:156) [mina-core-2.0.0-RC1.jar:na]
... 9 common frames omitted
Caused by: org.apache.mina.core.RuntimeIoException: Failed to open a selector.
at org.apache.mina.transport.socket.nio.NioProcessor.<init>(NioProcessor.java:58) [mina-core-2.0.0-RC1.jar:na]
... 13 common frames omitted
Caused by: java.io.IOException: Too many open files
at sun.nio.ch.IOUtil.initPipe(Native Method) [na:1.6.0_14]
at sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:49) [na:1.6.0_14]
at sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:18) [na:1.6.0_14]
at java.nio.channels.Selector.open(Selector.java:209) [na:1.6.0_14]
at org.apache.mina.transport.socket.nio.NioProcessor.<init>(NioProcessor.java:56) [mina-core-2.0.0-RC1.jar:na]
... 13 common frames omitted
2011-10-14 10:01:04.439 [Sgip_Handler.java:333] - Failed to create a new instance of org.apache.mina.transport.socket.nio.NioProcessor
org.apache.mina.core.RuntimeIoException: Failed to create a new instance of org.apache.mina.transport.socket.nio.NioProcessor
at org.apache.mina.core.service.SimpleIoProcessorPool.<init>(SimpleIoProcessorPool.java:171) [mina-core-2.0.0-RC1.jar:na]
at org.apache.mina.core.service.SimpleIoProcessorPool.<init>(SimpleIoProcessorPool.java:104) [mina-core-2.0.0-RC1.jar:na]
at org.apache.mina.core.polling.AbstractPollingIoConnector.<init>(AbstractPollingIoConnector.java:93) [mina-core-2.0.0-RC1.jar:na]
at org.apache.mina.transport.socket.nio.NioSocketConnector.<init>(NioSocketConnector.java:55) [mina-core-2.0.0-RC1.jar:na]
at com.techcenter.gateway.protocol.sgip.Sgip_Handler.connect(Sgip_Handler.java:309) [tech_standardsm_smsgatewayapi-1.0.0.2-SNAPSHOT.jar:na]
at com.techcenter.gateway.base.AbstractSupport.connect(AbstractSupport.java:36) [tech_standardsm_smsgatewayapi-1.0.0.2-SNAPSHOT.jar:na]
at com.techcenter.gateway.sender.chain.SendIncludeSpeedCommand.execute(SendIncludeSpeedCommand.java:178) [tech_standardsm_smsgatewayapi-1.0.0.2-SNAPSHOT.jar:na]
at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:191) [commons-chain-1.2.jar:1.2]
at com.techcenter.gateway.sender.SubmitSender.run(SubmitSender.java:49) [tech_standardsm_smsgatewayapi-1.0.0.2-SNAPSHOT.jar:na]
at java.lang.Thread.run(Thread.java:619) [na:1.6.0_14]
Caused by: java.lang.reflect.InvocationTargetException: null
at sun.reflect.GeneratedConstructorAccessor5.newInstance(Unknown Source) [na:na]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) [na:1.6.0_14]
at java.lang.reflect.Constructor.newInstance(Constructor.java:513) [na:1.6.0_14]
at org.apache.mina.core.service.SimpleIoProcessorPool.<init>(SimpleIoProcessorPool.java:156) [mina-core-2.0.0-RC1.jar:na]
... 9 common frames omitted
Caused by: org.apache.mina.core.RuntimeIoException: Failed to open a selector.
at org.apache.mina.transport.socket.nio.NioProcessor.<init>(NioProcessor.java:58) [mina-core-2.0.0-RC1.jar:na]
... 13 common frames omitted
Caused by: java.io.IOException: Too many open files
at sun.nio.ch.IOUtil.initPipe(Native Method) [na:1.6.0_14]
at sun.nio.ch.EPollSelectorImpl.<init>(EPollSelectorImpl.java:49) [na:1.6.0_14]
at sun.nio.ch.EPollSelectorProvider.openSelector(EPollSelectorProvider.java:18) [na:1.6.0_14]
at java.nio.channels.Selector.open(Selector.java:209) [na:1.6.0_14]
at org.apache.mina.transport.socket.nio.NioProcessor.<init>(NioProcessor.java:56) [mina-core-2.0.0-RC1.jar:na]
... 13 common frames omitted

上面是错误，好像是socket连接没有关闭，内存一直在增加,但不知道怎么关，在哪里关。

[yanglin753]

mina在绑定ip地址失败的时候，会存在句柄泄露。把ip绑正确就可以了

[KevinXie]

呵呵
不知道是不是redhat linux下运行的tomcat，我也遇到这样的问题，不过解决，“too many files open”错误，不是程序问题，因为是linux下对每个进程打开资源的数量做了限制，windows 没有。

开始很郁闷，在windows下一点问题都没有，但以跑linux不久就会出现“too many files open”错误。

重新设置一下linux的环境就ok了，我的现在已经不再报这个错误了，具体修改和设置请查看我在iteye上的帖子，不知道是否完全修复这个bug，但修改后到现在，基本没有再出现过这个错误：
http://xieyanhua.iteye.com/admin/blogs/1198708

[KevinXie]

顺便说一下，我用的是mina2的版本，redhat 4.1.2-48版本，tomcat是7.0.21

[KevinXie]

呵呵，07年初开始就没有再用csdn了，今天查问题，看到你的问题正好是我前端时间刚刚遇到的，就给你回复一下。呵呵。希望对你有用

[qiushi4958]

给你个简单明了的解决方案，就是沙发的那种里面的永久解决发法

在/etc/security/limits.conf文件里面添加
* hard nofile 65535
* soft nofile 65535

保存后就OK，重新登录linux用ulimit -n查看是否为65535 是65535就成功了
这是增加单个进程能打开的文件数到65535个

[lnxjx]

[Quote=引用 5 楼 qiushi4958 的回复:]

给你个简单明了的解决方案，就是沙发的那种里面的永久解决发法

在/etc/security/limits.conf文件里面添加
* hard nofile 65535
* soft nofile 65535

保存后就OK，重新登录linux用ulimit -n查看是否为655……
[/Quote]

我也是这么设的，可没想到我的连接数竟然超过了65535，所以还是抱too many open files的错误
是不是程序有问题？