# Cannot create pipe

**URL:** <https://community.unix.com/t/cannot-create-pipe/250341>\
**Category:** SCO\
**Created:** [September 30, 2009, 8:16am UTC](https://community.unix.com/t/cannot-create-pipe/250341 "2009-09-30T08:16:15Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![necron](https://community.unix.com/letter_avatar/necron/32/5_5575768a8748004e209b776fc1b2916d.png) [@necron](https://community.unix.com/u/necron)\
**Post date:** [September 30, 2009, 8:16am UTC](https://community.unix.com/t/cannot-create-pipe/250341/1 "2009-09-30T08:16:15Z")

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Hi,

I'm new here, so please dont shoot me if I forgot something 🙂  
Some SCO box we've (our company) got recently from a new customer runs an app that hangs the entire box every once in a while.  
Today when an admin tried to start the db we got this error:  
$ dbstart  
dbstart: line 22: cannot create pipe [Out of stream resources]

Im pretty familiar with FreeBSD, but quite the noob with SCO, so what and where should I edit files in order to allow more resources to be used?  
Or is this a (virtual) memory problem?

Regards,

Niels

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**Author:** ![jgt](https://community.unix.com/user_avatar/community.unix.com/jgt/32/10703_2.png) [@jgt](https://community.unix.com/u/jgt)\
**Post date:** [September 30, 2009, 12:11pm UTC](https://community.unix.com/t/cannot-create-pipe/250341/2 "2009-09-30T12:11:38Z")

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Run scoadmin, and select "hardware/kernel manager" then adjust Streams parameters (option 20), relink the kernel and reboot.  
Assuming you are using Openserver 5.0.x or 6.0  
On older releases 3.2.4 run sysadm.

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**Author:** ![necron](https://community.unix.com/letter_avatar/necron/32/5_5575768a8748004e209b776fc1b2916d.png) [@necron](https://community.unix.com/u/necron)\
**Post date:** [September 30, 2009, 2:21pm UTC](https://community.unix.com/t/cannot-create-pipe/250341/3 "2009-09-30T14:21:01Z")

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Thx for the response!

Do you have a link for the 'relink the kernel' part?  
Or is it that simpel that you can explain it in a simple reply? 🙂

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**Author:** ![jgt](https://community.unix.com/user_avatar/community.unix.com/jgt/32/10703_2.png) [@jgt](https://community.unix.com/u/jgt)\
**Post date:** [September 30, 2009, 3:34pm UTC](https://community.unix.com/t/cannot-create-pipe/250341/4 "2009-09-30T15:34:31Z")

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Relink is part of the menu structure of scoadmin-\>hardware/kernel.

Answer yes to make this the default kernel, and yes to rebuild environment.  
If after you have done this and rebooted, and are not happy, reboot and enter "unix.old" at the boot prompt.  
You can probably double the default parameters.

Documentation is at [The SCO Group, Inc. | Support | Docs | Documentation](http://sco.com/support/docs/openserver/)

All versions of 5.0.x are essentially the same.

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**Author:** ![necron](https://community.unix.com/letter_avatar/necron/32/5_5575768a8748004e209b776fc1b2916d.png) [@necron](https://community.unix.com/u/necron)\
**Post date:** [October 1, 2009, 2:46am UTC](https://community.unix.com/t/cannot-create-pipe/250341/5 "2009-10-01T02:46:36Z")

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It's Unixware 7, Release 7.1.1.  
Does that make a difference?  
I found the manuals for it on [The SCO Group, Inc. | Support | Docs | Documentation | UnixWare](http://sco.com/support/docs/unixware/), but scoadmin wise?

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**Author:** ![jgt](https://community.unix.com/user_avatar/community.unix.com/jgt/32/10703_2.png) [@jgt](https://community.unix.com/u/jgt)\
**Post date:** [October 1, 2009, 12:58pm UTC](https://community.unix.com/t/cannot-create-pipe/250341/6 "2009-10-01T12:58:38Z")

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[Monitoring and tuning the system](http://uw714doc.sco.com/en/SM_perform/CONTENTS.html)

Values and parameter names look the same, but I am sure that the user interface is quite different. Guess you have some reading to do.

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<div class="post-metadata">

**Author:** ![necron](https://community.unix.com/letter_avatar/necron/32/5_5575768a8748004e209b776fc1b2916d.png) [@necron](https://community.unix.com/u/necron)\
**Post date:** [October 1, 2009, 1:13pm UTC](https://community.unix.com/t/cannot-create-pipe/250341/7 "2009-10-01T13:13:55Z")

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Seems that way haha, thx for the help sofar!
