Yes, currently I have to go through our UNIX team to get access to any external help, not really the best situation. I have put in a request to my department manager to be allowed direct access however, so hopefully within the next week I can directly contact our support lines to help sort out the issue.
Sorry if I came of a bit arrogant in my first message to the list, I have been waiting over 4 weeks for any sort of response, but it appears from Mr Terhune's reply that it either our UNIX team never raised it with IBM; or our provider has not escalated it to IBM at this stage. Thank you for the responses, Dan -----Original Message----- From: owner-u2-us...@listserver.u2ug.org [mailto:owner-u2-us...@listserver.u2ug.org] On Behalf Of Wally Terhune Sent: Thursday, 15 January 2009 1:59 PM To: u2-users@listserver.u2ug.org Subject: Re: [U2][UD] Named pipe issue. I don't find any open engineering cases (or even recent closed ones) regarding any problems with OSOPEN / OSWRITE in UniData. Nor do I find any support case for Dan McGrath. Nor any open support cases with keyword OSOPEN in the problem text. Hard to say where the problem might lie. I suspect Dan will need to provide a small test case to his UniData support provider that demonstrates a problem so they can see if the problem can be reproduced on a different server and/or different UNIX flavor server. happy hunting. Wally Terhune U2 Support Architect IBM Information Management Software Tel: (303) 773-7969 T/L 656-7969 Mobile: (303) 807-6222 Email: wal...@us.ibm.com http://www.ibm.com/software/data/u2/support From: Bill Haskett <wphask...@advantos.net> To: u2-users@listserver.u2ug.org Date: 01/14/2009 06:43 PM Subject: Re: [U2][UD] Named pipe issue. Sent by: owner-u2-us...@listserver.u2ug.org Dan: I'm going to ask the obvious...have you contacted IBM support? They're pretty good about tracking down problems and either finding solutions or work-arounds. Wally is especially good about these kinds of things. HTH, Bill ______________________________________________________________________ From: Dan McGrath <dmc...@imb.com.au> Sent: 1/14/2009 4:21 PM To: u2-users@listserver.u2ug.org Subject: [U2][UD] Named pipe issue. Hi all, Just a quick introduction... I am a developer at a medium-sized financial institution in Australia. I've being working with Unidata for the last 2 years and have been quite surprised with the whole MultiValue system and its flexibility. Recently I've been tasked to determine the cause and find a solution to an annoy intermittent issue that has been experienced by one of our systems that links into Unidata. The part in question is a C daemon which talks to a Phantom process via Named pipes. Approximately every 15000 requests, the Phantom writes a response to the C daemon, which is never received. I've traced it down to the following lines of code and am starting to suspect a bug in Unidata (We run 7.1) The C daemon blocks at this line: Fd = open(Pipe, O_RDONLY); (Pipe is a named pipe) The associated lines in the Phantom that are running are: OSOPEN PIPE.NAME TO PIPE.HANDLE ON ERROR * <snip> just error handling and logging RETURN END ELSE * <snip> just error handling and logging RETURN END OSWRITE PIPE.DATA TO PIPE.NAME ON ERROR * <snip> just error handling and logging RETURN END OSCLOSE PIPE.HANDLE *<snip> more logging. While the C daemon is blocking at open, the Phantom apparently successfully opens the pipe and writes to it without error. None of the error logging code is touched and the logging after is. Obviously, being a named pipe, open and OSOPEN will block until they are both at that point. It appears that open does not believe the pipe has been opened by the Phantom. The requests that fail are exactly the same as the requests that succeed. Both data and logging output. This leads me to believe that either our UNIX system has a problem with the open call or Unidata has an issue with OSOPEN/OSWRITE which is not being caught by the ON ERROR or ELSE clauses. Using OSBWRITE makes no difference (Apart from the whole process slowing down?). Is there something I am missing or has any one else know of a similar problem in Unidata? Searching for bug reports etc for Unidata has been painful and unsuccessful and IBM 'Support' is well... you know. Thanks for reading! Dan McGrath ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ [demime 1.01d removed an attachment of type image/gif which had a name of graycol.gif] [demime 1.01d removed an attachment of type image/gif which had a name of ecblank.gif] ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/ ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ ########################################################################################### The information transmitted in this message and attachments (if any) is intended only for the person or entity to which it is addressed. The message may contain confidential and/or privileged material. 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