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Re: Intermittent error: I/O: Unknown system state
Thanks for all the advice. After digesting it for a couple of days,
we are planning to get current on our PTFs and hope that solves the
issue.
I have 1 more question based on some more digging I did, and I'd like
your opinion. I did some reading up on gsk_environment_init() on the
following link:
[1]http://publib.boulder.ibm.com/infocenter/iseries/v5r4/topic/apis/un
ix9.pdf
On p35, Usage Note #1, it states that "if gsk_environment_init()
fails, gsk_environment_close() must be issued to clean up resources."
I'm not sure I understand things properly, but if the init fails,
would doing a close and another init perhaps resolve the issue? I'm
thinking that if something is damaged and can't initialize, could we
grab another by doing a close and another init? If so, can you
suggest some code for me to try?
Thanks,
John Dyar
Systems Analyst
Information Technology
Springs Window Fashions LLC
Phone: 608-828-4045
Fax: 608-836-6127
john.dyar@xxxxxxxxxxxxxxxxxxxxxxxxx
From: Scott Klement <sk@xxxxxxxxxxxxxxxx>
To: HTTPAPI and FTPAPI Projects <ftpapi@xxxxxxxxxxxxxxxxxxxxxx>
Date: 02/04/2011 04:50 PM
Subject: Re: Intermittent error: I/O: Unknown system state
Sent by: ftpapi-bounces@xxxxxxxxxxxxxxxxxxxxxx
_________________________________________________________________
Hi John,
> Attached are some debug logs - one from a http_post that worked,
and
> one that has the error. I scoured the website for clues to why
the
> failure happened but couldn't find any.
Thanks for the debug logs. I'm not sure what the cause of this error
is, but I'll tell you everything I'm able to glean from log, and
perhaps
this will give you some clues about what to try next?
From looking at the logs, it appears the error is being detected in
the
following section of code within the COMMSSLR4 module of HTTPAPI:
C* Initialize the SSL environment. After this, secure sessions
C* can be created!
c eval rc = gsk_environment_init(wkEnvh)
c if rc <> GSK_OK
c if rc = GSK_AS400_ERROR_NOT_REGISTERED
c callp SetError(HTTP_NOTREG: 'Application
' +
c 'is not registered with DCM!')
c callp https_cleanup
c return -1
c else
c callp SetError(HTTP_GSKATYP:
'gsk_env_init: '+
c ssl_error(rc))
c callp https_cleanup
c return -1
c endif
c endif
NOTE: That's taken from the current beta. I don't have a copy of the
older code handy. I do know that this routine was changed somewhat,
though, I think the changes were small bug fixes.
From the debug log, I can see that the API rc=406 (GSK_ERROR_IO) and
errno=3474 (also known as MSGID(CPE3474) or EUNKNOWN) which is
"Unknown
System State." This, in turn, triggers HTTPAPI's error #24
(HTTP_GSKATYP), which is what would be returned back to your program
via
http_error().
So we know the exact line of code where it's happening. It's
happening
when I call gsk_environment_init(), which is an IBM-supplied API, and
it's documented here:
[2]http://publib.boulder.ibm.com/infocenter/iseries/v5r4/topic/apis/gs
k_environment_init.htm
If you look at the information center page (the link above) you'll see
the following listed as an error response for the API:
[GSK_ERROR_IO]
An error occurred in SSL processing, check errno value.
So that's what you're getting. And below that further, it lists a few
different errno values, but does not list EUNKNOWN (3474). It does
say
"If an errno is returned that is not in this list, look in Errno
Values
for UNIX-Type Functions for a description of the errno."
so, if I look there, I see this:
EUNKNOWN -- Unknown system state.
The operation failed because of an unknown system state. See any
messages in the job log and correct any errors that are indicated,
then retry the operation.
So now I go back to the job log you sent on Tuesday, and I see this:
*NONE Command 01/19/11 22:01:00.030472 QCLCLCPR QSYS 04A4 PPR200P
MODHPGM *STMT
To module . . . . . . . . . : PPR200P
To procedure . . . . . . . : PPR200P
Statement . . . . . . . . . : 3900
Message . . . . : 3900 - CALL PGM(PPR200)
CPF9897 Diagnostic 40 01/19/11 22:01:04.092360 HTTPAPIR4 MODHPGM *STMT
HTTPAPIR4 MODHPGM *STMT
From module . . . . . . . . : HTTPUTILR4
From procedure . . . . . . : UTIL_DIAG
Statement . . . . . . . . . : 2992
To module . . . . . . . . . : COMMSSLR4
To procedure . . . . . . . : SSL_ERROR
Statement . . . . . . . . . : 5574
Message . . . . : (GSKit) I/O: Unknown system state.
Cause . . . . . : No additional online help information is available.
There's no messages in between the "CALL PGM" and the "Unknown System
State"... so there's no errors in the job log for me to correct.
You'll note that your debug file (as well as your job log) also lists
a
bunch of "(GSkit) Handle not valid" errors. These I've seen before,
and
are caused by the first error. The current beta will eliminate these
errors (but, AFAIK, won't eliminate the "Unknown system state")
> I'm hoping someone has a tip for what I could check or try next.
Well... if you waded through my long-winded message, above, I hope
you'll see that HTTPAPI is calling an IBM-supplied API, and the error
is
occurring inside that API.
My next step would be to make sure you have the latest CUME & Group
PTFs
installed. There was a similar error that IBM fixed in 2007 related
to
SSL in FTP... No idea if that's the same thing that's happening
here,
but they are both using the same SSL engine, so it could be...
[3]http://www-01.ibm.com/support/docview.wss?uid=nas21f5728dac1be65a98
6257331003c69c5
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References
1. http://publib.boulder.ibm.com/infocenter/iseries/v5r4/topic/apis/unix9.pdf
2. http://publib.boulder.ibm.com/infocenter/iseries/v5r4/topic/apis/gsk_environment_init.htm
3. http://www-01.ibm.com/support/docview.wss?uid=nas21f5728dac1be65a986257331003c69c5
4. http://www.scottklement.com/mailman/listinfo/ftpapi
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