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Conference abbott::mailworks-vms

Title:MailWorks for OpenVMS
Notice:kit info notes 3-6; policies note 2; reporting bugs note 7
Moderator:KOALA::LAVASH
Created:Wed Jul 28 1993
Last Modified:Mon Jun 02 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1583
Total number of notes:6814

1554.0. "A1mail$connect at 95% CPU, generating thousands of Buffered I/Os" by KYOSS1::POLAKOWSKI (One of Us is Over 40) Tue Mar 11 1997 16:51


	At the current site where I am working, I have run into
	the following situation several times during the past
	week. The help desk received numerous calls from Teamlinks
	user complaining that they only had the hour glass on the
	screen while in teamlinks. Upon investigating, I found
	the A1MAIL$CONNECT process was consuming 95% of  the CPU
	and was generating thousands of Buffered I/Os. Each time
	the problem seemed to correct itself, but the helpdesk
	is overwhelmed with user complaints. We're not running
	the latest Mailworks (1.3a-2). Would going to the ECO-3
	Help? Is there anything I can do to prevent this from
	happening.

	Thanx in advance,

	Ken


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1554.1KOALA::LAVASHWed Mar 12 1997 13:0419
    The following is in the release notes for V1.3A-3, this may help.
    -diana
    
          o The buffered IO rate may be effected because of a fix to
            properly handle a full buffer situation when sending data
            to a PC over TCP/IP. If there is a very high buffered IO    
            rate, the send and receive quotas should be increased for
            TCP/IP. The following command can be used to check the send
            and receive quota for UCX:
    
            $ UCX SHOW DEV/PORT=6161 /FULL
    
            The send and receive quotas can be set system-wide by using
            the following command for UCX:
    
            $ UCX SET PROTOCOL TCP /QUOTA=(SEND:xxxxx,RECEIVE:xxxxx)
    
    	    Please refer to the appropriate TCP/IP documentation for
            further details about setting the send and receive quotas.
1554.2Thanx for the Quick ResponseKYOSS1::POLAKOWSKIOne of Us is Over 40Wed Mar 12 1997 13:427
    
    
    	Much Thanx for the response. I'm not sure how to do this
    	for Multinet, but I'll check it out.
    
    	Ken
    
1554.3KOALA::BRIGGSWed Mar 12 1997 14:0310

    There is also an ICF patch that has been released by the folks
in Reading (who now support the product) that will fix this problem.  You
will need to contact them to see what the appropriate patch is.  I believe
the contact person is Arfon Rees (IOSG::REESA)


-rob

1554.4ThanxKYOSS1::POLAKOWSKIOne of Us is Over 40Fri Mar 14 1997 10:2612
    
    
    	Thanx for the reply about the patch. I spoke with Cisco
    	regarding changing the send/receive quotas and the best
    	that we could come with was that we could change the
    	TCP window size. Unfortunately, this would mean a
    	change to some parameters in the Multinet Kernel
    	and we would not be supported if we modified these
    	parameters. We'll pursue the patch.
    
    	Ken