连接过多

[wu560130911]

编译安装eclipse-che-4.0.0-M6-SNAPSHOT，启动后，socket连接迅速涨到10万个，第一次请求后，tomcat报错
2015-12-25 16:32:12,226[main] [ERROR] [o.a.c.core.StandardServer 464] - StandardServer.await: accept:
java.net.SocketException: Too many open files
at java.net.PlainSocketImpl.socketAccept(Native Method) ~[na:1.8.0_65]
at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:409) ~[na:1.8.0_65]
at java.net.ServerSocket.implAccept(ServerSocket.java:545) ~[na:1.8.0_65]
at java.net.ServerSocket.accept(ServerSocket.java:513) ~[na:1.8.0_65]
at org.apache.catalina.core.StandardServer.await(StandardServer.java:446) ~[catalina.jar:8.0.28]
at org.apache.catalina.startup.Catalina.await(Catalina.java:713) [catalina.jar:8.0.28]
at org.apache.catalina.startup.Catalina.start(Catalina.java:659) [catalina.jar:8.0.28]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_65]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_65]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_65]
at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_65]
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:351) [bootstrap.jar:8.0.28]
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:485) [bootstrap.jar:8.0.28]

[wu560130911]

lsof -p 2765 | wc -l
1000073

都是socket连接

[ghost]

Looks like Docker isn;t running on your system. Can you verify that docker info returns some meaningful output?

[wu560130911]

docker is already run in my system,you can see log as follows

2015-12-25 11:45:22,534[ost-startStop-1] [INFO ] [o.a.c.startup.HostConfig 916] - Deploying web application archive /home/wu560130911/tools/eclipse-che-4.0.0-M6-SNAPSHOT/tomcat/webapps/che.war
2015-12-25 11:45:26,851[ost-startStop-1] [INFO ] [.c.p.d.c.DockerRegistryChecker 43] - Probing registry 'http://localhost:5000'
2015-12-25 11:45:26,871[ost-startStop-1] [INFO ] [.c.p.d.c.DockerRegistryChecker 48] - Probe of registry 'http://localhost:5000' succeed with HTTP response code '200'
2015-12-25 11:45:28,390[ost-startStop-1] [INFO ] [o.a.c.startup.HostConfig 980] - Deployment of web application archive /home/wu560130911/tools/eclipse-che-4.0.0-M6-SNAPSHOT/tomcat/webapps/che.war has finished in 5,855 ms
2015-12-25 11:45:28,391[ost-startStop-1] [INFO ] [o.a.c.startup.HostConfig 1036] - Deploying web application directory /home/wu560130911/tools/eclipse-che-4.0.0-M6-SNAPSHOT/tomcat/webapps/ROOT
2015-12-25 11:45:28,429[ost-startStop-1] [INFO ] [o.a.c.startup.HostConfig 1152] - Deployment of web application directory /home/wu560130911/tools/eclipse-che-4.0.0-M6-SNAPSHOT/tomcat/webapps/ROOT has finished in 38 ms
2015-12-25 11:45:28,433[main] [INFO ] [o.a.c.http11.Http11NioProtocol 469] - Starting ProtocolHandler ["http-nio-8080"]
2015-12-25 11:45:28,461[main] [INFO ] [o.a.catalina.startup.Catalina 638] - Server startup in 70781 ms
2015-12-25 11:46:17,857[8080-Acceptor-0] [ERROR] [o.a.t.util.net.NioEndpoint 709] - Socket accept failed
java.io.IOException: Too many open files
at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method) ~[na:1.8.0_65]
at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422) ~[na:1.8.0_65]
at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250) ~[na:1.8.0_65]
at org.apache.tomcat.util.net.NioEndpoint$Acceptor.run(NioEndpoint.java:682) ~[tomcat-coyote.jar:8.0.28]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_65]
2015-12-25 11:46:17,908[8080-Acceptor-0] [ERROR] [o.a.t.util.net.NioEndpoint 709] - Socket accept failed

[TylerJewell]

I can see the access to the docker registry, but I didn't see the access to
docker itself.

We see the too many open files issue randomly. It often appears when using
docker through virtualbox & the virtualbox system has disk swapping or
memory constraint issue due to many reuses of the system.

Does "docker ps" work?
Have you tried installing virtualbox, launching docker in a virtualbox vm -
and do you get the same issues as running docker natively?

Tyler Jewell | CEO | tyler@​codenvy.​com | 9​78​.8​84​.53​55

On Fri, Dec 25, 2015 at 3:46 PM, 吴梦升 notifications@github.com wrote:

docker is already run in my system,you can see log as follows

2015-12-25 11:45:22,534[ost-startStop-1] [INFO ] [o.a.c.startup.HostConfig
916] - Deploying web application archive
/home/hzwumsh/tools/eclipse-che-4.0.0-M6-SNAPSHOT/tomcat/webapps/che.war
2015-12-25 11:45:26,851[ost-startStop-1] [INFO ]
[.c.p.d.c.DockerRegistryChecker 43] - Probing registry '
http://localhost:5000'
2015-12-25 11:45:26,871[ost-startStop-1] [INFO ]
[.c.p.d.c.DockerRegistryChecker 48] - Probe of registry '
http://localhost:5000' succeed with HTTP response code '200'
2015-12-25 11:45:28,390[ost-startStop-1] [INFO ] [o.a.c.startup.HostConfig
980] - Deployment of web application archive
/home/hzwumsh/tools/eclipse-che-4.0.0-M6-SNAPSHOT/tomcat/webapps/che.war
has finished in 5,855 ms
2015-12-25 11:45:28,391[ost-startStop-1] [INFO ] [o.a.c.startup.HostConfig
1036] - Deploying web application directory
/home/hzwumsh/tools/eclipse-che-4.0.0-M6-SNAPSHOT/tomcat/webapps/ROOT
2015-12-25 11:45:28,429[ost-startStop-1] [INFO ] [o.a.c.startup.HostConfig
1152] - Deployment of web application directory
/home/hzwumsh/tools/eclipse-che-4.0.0-M6-SNAPSHOT/tomcat/webapps/ROOT has
finished in 38 ms
2015-12-25 11:45:28,433[main] [INFO ] [o.a.c.http11.Http11NioProtocol 469]

• Starting ProtocolHandler ["http-nio-8080"]
  2015-12-25 11:45:28,461[main] [INFO ] [o.a.catalina.startup.Catalina 638]
• Server startup in 70781 ms
  2015-12-25 11:46:17,857[8080-Acceptor-0] [ERROR]
  [o.a.t.util.net.NioEndpoint 709] - Socket accept failed
  java.io.IOException: Too many open files
  at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method) ~[na:1.8.0_65]
  at
  sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)
  ~[na:1.8.0_65]
  at
  sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)
  ~[na:1.8.0_65]
  at
  org.apache.tomcat.util.net.NioEndpoint$Acceptor.run(NioEndpoint.java:682)
  ~[tomcat-coyote.jar:8.0.28]
  at java.lang.Thread.run(Thread.java:745) [na:1.8.0_65]
  2015-12-25 11:46:17,908[8080-Acceptor-0] [ERROR]
  [o.a.t.util.net.NioEndpoint 709] - Socket accept failed

—
Reply to this email directly or view it on GitHub
#140 (comment).

[ghost]

2015-12-25 11:46:17,857[8080-Acceptor-0] [ERROR] [o.a.t.util.net.NioEndpoint 709] - Socket accept failed java.io.IOException: Too many open files actually means there's no connection to Docker socket. Make sure you can run docker ps in the terminal where you launch Che.

Info on your system setup will also help.

[wu560130911]

root@mini02-04:~# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
e26315acde08 dockerui/dockerui "/dockerui" 44 hours ago Up 44 hours 0.0.0.0:9000->9000/tcp romantic_spence
e218a1eb2041 registry "docker-registry" 44 hours ago Up 44 hours 0.0.0.0:5000->5000/tcp registry

[ghost]

Startup script now does a series of checks, including Docker availability.

Closing the issue.