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List:       aix-l
Subject:    Re: System Hangs - with inetd/memory errors
From:       Jonathan Stevenson <jonkstevenson () YAHOO ! COM>
Date:       1999-12-31 16:44:38
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Mark..

I am currently running aix4.2.X and HACMP 4.2.2
classic with network settings below that of what you
have .. and have not experienced any of the problems
you have seen.. a question I have is what tcp filesets
are you running .. the newest fileset from IBM fixed a
memory leak problem that I encounter on my ADSM server
..

The tcp filesets I am running are:

lslpp -l | grep tcp

  bos.msg.en_US.net.tcp.client
  bos.net.tcp.client        4.2.1.27  COMMITTED
TCP/IP Client Support
  bos.net.tcp.server        4.2.1.15  COMMITTED
TCP/IP Server
  bos.net.tcp.smit           4.2.1.2  COMMITTED
TCP/IP SMIT Support
  bos.net.tcp.client        4.2.1.27  COMMITTED
TCP/IP Client Support
  bos.net.tcp.server        4.2.1.15  COMMITTED
TCP/IP Server

This may be your problem.. Are you also encounter mbuf
errors .. netstat -m ?

Good luck...

--- Mark Paget <Mark.Paget@CWO.COM.AU> wrote:
> Thanks for you help.
>
> I have increased thewall to 512 MB - but the manual
> mentions
> that AIX 4.2.x will only use up to a maximum of
> 64MB.
>
> I have set sb_max to 2GB - as this indicated a
> problem through
> iptrace.
>
> f1n1:                   thewall = 524288
> f1n1:                    sb_max = 2048000
> f1n1:             tcp_sendspace = 262144
> f1n1:             tcp_recvspace = 262144
> f1n1:             udp_sendspace = 65536
> f1n1:             udp_recvspace = 655360
> f1n1:            rfc1122addrchk = 0
> f1n1:                   rfc1323 = 1
>
> f1n3:                   thewall = 524288
> f1n3:                    sb_max = 2048000
> f1n3:             tcp_sendspace = 262144
> f1n3:             tcp_recvspace = 262144
> f1n3:             udp_sendspace = 65536
> f1n3:             udp_recvspace = 655360
> f1n3:            rfc1122addrchk = 0
> f1n3:                   rfc1323 = 1
>
> Noticed that tx_que_size is 256 (the maximum for PCI
> ethernet 23100020)
> but rx_que_size is 128 - this could be increased,
> does anyone know if
> this will help.
>
> When the system hung again today there was around
> 100MB free real memory -
> (monitor
> still reported for about 30 seconds).
>
> Any help would be gratefully received.
>
> Regards,
>
> Mark.
>
> -----Original Message-----
> From: Siva, Indy
> [mailto:Indy.Siva@DIGITALSTORAGE.COM]
> Sent: Friday, 24 December 1999 0:40
> To: AIX-L@pucc.Princeton.EDU
> Subject: Re: System Hangs - with inetd/memory errors
>
>
> Look at network options:
>
> no  -a
>
> change the THE WALL parameter (increase it): Mine is
> thewall = 524288
>
>
> > -----Original Message-----
> > From: Mark Paget [SMTP:Mark.Paget@CWO.COM.AU]
> > Sent: Wednesday, December 22, 1999 8:50 PM
> > To:   AIX-L@pucc.Princeton.EDU
> > Subject:      System Hangs - with inetd/memory
> errors
> >
> >
> > Anyone seen these errors before:
> >
> > Dec 16 13:31:43 f1n3 inetd[187060]: Running server
> /usr/sbin/telnetd. The
> > error number is There is not enough memory
> available now..
> >
> > Dec 16 13:31:49 f1n3 inetd[187062]: Running server
> /usr/sbin/telnetd. The
> > error number is There is not enough memory
> available now..
> >
> > Dec 16 13:31:49 f1n3 inetd[187062]: Running server
> /usr/sbin/telnetd. The
> > error number is There is not enough memory
> available now..
> >
> > Dec 16 13:31:49 f1n3 inetd[187062]: Running server
> /usr/sbin/telnetd. The
> > error number is There is not enough memory
> available now..
> >
> > We are running AIX 4.2.1 with PSSP 2.4, HACMP/ES
> 4.2.2.
> >
> > It has occurred on both nodes in the cluster - we
> have upgraded to
> > latest system firmware (at 3am this morning!) to
> no avail.
> >
> > When this message is produced, you cannot access
> the system &
> > errno 12 are produced (ENOMEM 12 /* Not enough
> space */) when
> > attempted an s1term.
> >
> > Any help would be greatly appreciated as we have
> had 5 system hangs
> > in the last 8 days.
> >
> > Thanks in advance.
> >
> > Mark.
> >
>


=====
Jonathan K. Stevenson
Unix Systems Manager
IBM Certified 4.3 System Adminstrator
IBM Certified HACMP Specialist
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