Re: [Wrapper-user] JVM exits when user logs off, even when interactive=false

[Christian M. <chr...@ta...>]

Scott,

When a user logs off windows send a signal to all running processes so
they can respond accordingly.
The wrapper catched the logoff signal and thus running as service
ignoring this signal. However, a JVM by it's nature is not expected to
continue running after a user logoff. Therefore the JVM by default
start the shutdown (as it is in your case).
Usually, the native library of the wrapper (wrapper.dll) protects the
JVM in a way as it is catching this signal from the OS and in case of
running as service also ignores this making it possible for the JVM to
keep running even after receiving the logoff signal.

if the jvm you are using is also a 32-bit jvm and loading the 32-bit
wrapper.dll, the native library should actually catch those signal.

Are you getting a message similar to this when the wrapper starts the JVM?

jvm 1    | WrapperManager: WARNING - Unable to load the Wrapper's
native library because none of the
jvm 1    | WrapperManager:           following files:
jvm 1    | WrapperManager:             wrapper-windows-x86-32.dll
jvm 1    | WrapperManager:             wrapper.dll
jvm 1    | WrapperManager:           could be located on the following
java.library.path:
jvm 1    | WrapperManager:             C:\.......\lib
jvm 1    | WrapperManager:           Please see the documentation for
the wrapper.java.library.path
jvm 1    | WrapperManager:           configuration property.
jvm 1    | WrapperManager:           System signals will not be
handled correctly.


Furthermore what JVM version are you using? We noticed that javaw.exe
is not always reliably processing the signal to the native library and
initiating a shutdown of itself when the signal got delivered.

If you think the above mentioned did not apply to you, could you
please enable debug mode, reproduce the issue and send us the full log
output of that?

Cheers,
Christian

On Fri, Jan 14, 2011 at 6:53 AM, Scott Vandezande <van...@gm...> wrote:
> I have the following in my wrapper config file:
> wrapper.ntservice.interactive=false
> But when someone is logged into the console session (session 0) and then
> logs off, the JVM exits, with the following in the log file:
> INFO   | wrapper  | 2011/01/13 12:51:40 | User logged out.  Ignored.
> STATUS | wrapper  | 2011/01/13 12:51:43 | <-- Wrapper Stopped
> I'm using the 32-bit dll on a 64-bit OS.  Is this a known behavior in this
> situation?
> Thank you,
> Scott
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