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From Steve Cohen <sco...@javactivity.org>
Subject Re: Connection Failures On SSHExec Task
Date Sat, 04 Jun 2005 20:45:59 GMT
Bill: Can you please set your system clock correctly?  It is very 
disconcerting to see emails in my box dated a month in the future.

Bill Winspur wrote:
> Synopsis
> -------- I am running ant 6.1.2 on XP Pro and have a test
> case that produces SSH connection failures by repetitively
> running the same <sshexec .../> task.
> 
> The first failure occurs after about two thirds (10) of the tasks
> have executed. At this point ant hangs up for about 2 minutes,
> then logs the following exception on the console.
>    com.jcraft.jsch.JSchException: Session.connect: java.io.IOException: .
> 
> If I then run the build again it hangs up immediately for 20 seconds,
> then logs the following exception on the console.
>  com.jcraft.jsch.JSchException: Session.connect: 
> java.net.ConnectException: Connection timed out: connect
> 
> Once the failure occurs I must wait about ten minutes until
> the connection timeouts go away and I can run the build
> again until the connection problem reappears.
> 
> The server is running Openssh on fedora RC2.
> 
> Question 1
> ----------
> Is this a known problem with SSHExec (ant), jsch, or openssh?
> 
> 
> Details
> -------
> The build file is very simple, and looks like this:
> 
> ===============================
> <?xml version="1.0" encoding="UTF-8"?>
> <project name="project" default="grabbit">
>    <target name="grabbit">
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
> 
>        <sshexec host="xxx.com" username="root"
>            command="whoami" password="secret" trust="true"/>
>    </target>
> </project>
> ===============================
> 
> Running the build produces the following console output:
> 
> ===============================
> E:\swd\devt\eclipseWkspce\Sysadmin\tomcat\ant\hangit>ant
> Buildfile: build.xml
> 
> grabbit:
>  [sshexec] Connecting to xxx.com:22
>  [sshexec] root
>  [sshexec] Connecting to xxx.com:22   <----  Question 2. why does the 
> console output from
>  [sshexec] Connecting to xxx.com:22                      tasks disappear 
> at this point?
>  [sshexec] Connecting to xxx.com:22
>  [sshexec] Connecting to xxx.com:22
>  [sshexec] Connecting to xxx.com:22
>  [sshexec] Connecting to xxx.com:22
>  [sshexec] Connecting to xxx.com:22
>  [sshexec] Connecting to xxx.com:22
>  [sshexec] Connecting to xxx.com:22
> 
> BUILD FAILED
> E:\swd\devt\eclipseWkspce\Sysadmin\tomcat\ant\hangit\build.xml:31: 
> com.jcraft.jsch.JSchException: Session.connect: java.io.IOException:
> 
> Total time: 2 minutes 14 seconds
> 
> 
> 
> E:\swd\devt\eclipseWkspce\Sysadmin\tomcat\ant\hangit>ant
> Buildfile: build.xml
> 
> grabbit:
>  [sshexec] Connecting to xxx.com:22
> 
> BUILD FAILED
> E:\swd\devt\eclipseWkspce\Sysadmin\tomcat\ant\hangit\build.xml:5: 
> com.jcraft.jsch.JSchException: Session.connect: 
> java.net.ConnectException: Connection timed out: connect
> 
> Total time: 21 seconds
> E:\swd\devt\eclipseWkspce\Sysadmin\tomcat\ant\hangit>
> ===============================
> 
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