Re: [JSch-users] Concurrency with JSch

[Lahiru G. <gl...@gm...>]

Hi Users,

And when I remove the threadpool an still submit a very large load I can
see I am getting the following error intermittently,

com.jcraft.jsch.JSchException: Packet corrupt


        at com.jcraft.jsch.Session.start_discard(Session.java:1049)

        at com.jcraft.jsch.Session.read(Session.java:956)

        at com.jcraft.jsch.UserAuthNone.start(UserAuthNone.java:56)

        at com.jcraft.jsch.Session.connect(Session.java:389)

        at com.jcraft.jsch.Session.connect(Session.java:183)


Regards

Lahiru

On Tue, Oct 7, 2014 at 2:18 PM, Lahiru Gunathilake <gl...@gm...>
wrote:

> Hi All,
>
> I have extended the JCraft library to authenticate my servers with a token
> and everything works fine when I use in the serial mode. But when I moved
> to a thread pool and try to share the JCraftSession and try to create
> multiple channels in large number of threads (I have already increased my
> maxSessionCount in sshd_config) I get the following error and I am not sure
> what is really going on.
>
> Every 20-30 request I get the below error.
>
>
>  "com.jcraft.jsch.JSchException: channel is not opened."
>
>
> Anybody using the sessions and creating channels concurrently ? I am not
> synchronizing the session in each thread ? Should I synchronize the session
> object if I am using in multi-threaded mode ?
>
> Regards
> Lahiru
>
> --
> Research Assistant
> Science Gateways Group
> Indiana University
>



-- 
Research Assistant
Science Gateways Group
Indiana University