Re: [Wrapper-user] Service consumes 100% of dual-CPU resources

[Jennifer K. <jk...@si...>]

I too have seen a lot of CPU usage where 100% of CPU is being consumed =20=

on a 4 proc box.. however, that is typically tied to a lot of event =20
logging ... you might look at what level
of logging you have set for the event manager.. my CPU usage goes down =20=

significantly when I disable that.. Can anyone enlighten on why the =20
drastic CPU usage for event logging?

I am also seeing significantly increased java memory usage.. and out of =20=

memory errors where I never saw that with the same code outside of
the service.  So I'd be interested in any response here too.

Jennifer
On Mar 9, 2004, at 7:51 AM, john yanlin wrote:

> Hi, All,
>
> We have been using the wrapper for some win NT services. Recently we
> occasionally ran into some problem where the services consume almost =20=

> all
> (99%, 100%) the CPU resources of a dual-CPU machine. The following is =
a
> segment of the wrapper log file:
>
> =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=20
> =3D=3D=3D=3D=3D=3D
> INFO   | jvm 1    | 2004/02/18 06:31:25 | Send a packet 103 : ok
> DEBUG  | wrapperp | 2004/02/18 06:31:25 | read a packet 103 : ok
> DEBUG  | wrapper  | 2004/02/18 06:31:25 | Got ping response from JVM
> DEBUG  | wrapper  | 2004/02/18 06:31:26 | ServiceControlHandler(4)
> DEBUG  | wrapper  | 2004/02/18 06:31:26 |   =
SERVICE_CONTROL_INTERROGATE
> DEBUG  | wrapperp | 2004/02/18 06:31:31 | sent 6 bytes
> INFO   | jvm 1    | 2004/02/18 06:31:31 | Received a packet 103 : ping
> INFO   | jvm 1    | 2004/02/18 06:31:31 | Send a packet 103 : ok
> DEBUG  | wrapperp | 2004/02/18 06:31:31 | read a packet 103 : ok
> DEBUG  | wrapper  | 2004/02/18 06:31:31 | Got ping response from JVM
> DEBUG  | wrapperp | 2004/02/18 06:31:37 | sent 6 bytes
> DEBUG  | wrapper  | 2004/02/18 06:31:37 | ServiceControlHandler(4)
> Dvm 1    | 20E0UG4/02 | 18 06wrapper  | 31:37 | Received a packet 103 =
:
> ping
> Dvm 1    | 20E0UG4/02 | 18 06wrapper  | 31:37 | Received a packet 103 =
:
> ping
> 2004/02/18 06:31:37 |   SERVICE_CONTROL_INTERROGATE
> STATUS | wrapper  | 2004/02/18 10:38:00 | --> Wrapper Started as =20
> Service
> DEBUG  | wrapperp | 2004/02/18 10:38:00 | server listening on port =20
> 17005.
> DEBUG  | wrapper  | 2004/02/18 10:38:00 | JVM was only running for
> -322562155 seconds leading to a failed restart count of 1.
> STATUS | wrapper  | 2004/02/18 10:38:00 | Launching a JVM...
> =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=20
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>
> =46rom which we can see that at 6:31:37 something went wrong. There =
are =20
> two
> lines in the log are exactly the same and the contents are sort of =20
> mixed.
> It should be something like:
>
> DEBUG | wrapper | 2004/02/18 | 06:31:37 | Received a packet 103 : ping
>
> Instead, it came out mixed as:
>
> Dvm 1    | 20E0UG4/02 | 18 06wrapper  | 31:37 | Received a packet 103 =
:
> ping
> Dvm 1    | 20E0UG4/02 | 18 06wrapper  | 31:37 | Received a packet 103 =
:
> ping
>
> The DEBUG and the date time were mixed. There was a 'B' in the 'DEBUG'
> missing. the 'J' for 'Jvm 1' was also missing. During that time, the
> service shown active in the windows service manager panel. But the =20
> actual
> service was hung.
>
> It seems that there was something happening inside the wrapper native
> part. Have anyone ever got the similar situation like this? Could =20
> anyone
> suggest what was happening here?
>
> Thanks,
>
> --=20
> http://www.fastmail.fm - And now for something completely different=85
>
>
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