Re: [Cryptix-users] Multithreading on AS400

[Edwin W. <ed...@wo...>]

Hi,

Cryptix does not start any (Java) threads on it's own. I'm not an AS400 
expert, but the error messages suggest that something between the JVM and 
the OS is wrong and it would occur with any java program you call from the 
background thread.


Edwin


--On 28-12-2005 10:43 -0500 "Bakal, Bora" <B....@ob...> wrote:
>
>
> Hi,
>
> I am using the Cryptix library on the AS400. There is an RPGLE program
> that creates an instance of my Java class (thin wrapper around Cryptix)
> and encrypts files. This has been working great during my tests. But when
> we moved to production, the RPGLE program started to fail intermittently
> especially when the program is called from a background job as opposed to
> being called interactively. Below are some of the messages we get from
> the AS400.
>
> We tried everything suggested in the messages. We also opened a ticket
> with IBM in case this was an AS400 configuration issue. When we allow
> multithreading on the AS400, we have tons of other issues with programs
> that are not thread-safe. Is there any way to disable multi-threading
> within Cryptix? We would appreciate any suggestions to resolve this
> issue. Thanks!
>
> AS400 version is V5R3M0 JDK 1.4.2
> I compiled my encryption class using WebSphere 5 on Windows 2000.
>
> Message . . . . :   Request to create secondary Java thread failed.
>                                      Cause . . . . . :   The initiation
> of secondary threads within the job has
>                                        been disallowed.  The request to
> start another thread failed. Recovery  . .
>                                        . :   The disallowment of
> secondary threads may have occurred because the
>                                        job is not multithread capable.
> Use the Work with Environment Var
>                                        (WRKENVVAR) command to set
> QIBM_MULTI_THREADED='Y' to allow multiple
>                                        threads.
>
> Message . . . . :   Initiate thread returned error number EBUSY (3029)
>
> Message . . . . :   Unable to create Java Virtual Machine.
>                                      Cause . . . . . :   Unable to create
> Java Virtual Machine (JVM) because of
>                                        reason 5. The reason codes are
> defined as follows: 4 - Thread is attached to
>                                        another JVM. 5 - JVM already
> exists in process. 7 - Process must be
>                                        multi-thread capable. 8 -
> Classpath is not valid. 9 - Garbage Collection
>                                        information is not valid. 13 -
> Properties received are not valid. 18 -
>                                        Unable to complete JVM_OnLoad
> processing for -Xrun option. 19 - OS/400 PASE
>                                        startup error. See previous
> messages. If the reason is not listed, an
>                                        internal error has occurred.
> Recovery  . . . :   If an internal error has
>                                        occurred, report the reason code
> to your service representative to report
>                                        the problem.  If the reason is one
> of the reasons listed above, correct the
>                                        parameter and submit the request
> again.



-- 
Edwin