Sorry, forgot to also mention that it takes a while for them all to
leave the Genesis DHCP message "Acquired IPv4 address...." before
they actually run the script. When they do get past that and start
running the script it seems they all do it fairly simultaneously.
On 1/20/2014 8:56 PM, Xiao Peng Wang
wrote:
How long it takes to finish a
'nodeset <node> osimage> command?
From the syslog, did you see
all the nodes get hanging in nextdestiny for a while before
getting into deployment process (10 minutes?)? Or you saw the
nodes got into deployment process one by one with a fixed
interval (what was the interval?).
Thanks
Best Regards
----------------------------------------------------------------------
Wang Xiaopeng (王晓朋)
IBM China System Technology Laboratory
Tel: 86-10-82453455
Email: w...@cn.ibm.com
Address: 28,ZhongGuanCun Software Park,No.8 Dong Bei Wang West
Road, Haidian District Beijing P.R.China 100193
 Russell Jones
---2014/01/21 10:36:11---There is just 2 tasks, a runimage and
an osimage. chain.currchain=osimage, and
From: Russell Jones
<russell-l...@jonesmail.me>
To: xcat-user@lists.sourceforge.net,
Date: 2014/01/21 10:36
Subject: Re: [xcat-user] Bad performance
with 70 nodes requesting nextdestiny
There is just 2 tasks, a runimage and
an osimage.
chain.currchain=osimage, and chain.currstate=runimage=http://master/install/script.tgz.
The image is available to be downloaded. A nodeset on a single
node completed immediately.
On 1/20/2014 7:57 PM, Xiao Peng Wang
wrote:
How many tasks in your chain
list?
What's the value of chain.currchain and chain.currstate for
nodes when you saw that a lot of processes hang in
'nextdestiny' request?
What I can think of is the 'nextdestiny' will try to check the
http download path of 'runimage', could you check the path is
accessible from xCAT MN? And could you run 'nodeset
<node> runimage=xxx' to see how much time it takes to
finish?
Thanks
Best Regards
----------------------------------------------------------------------
Wang Xiaopeng (王晓朋)
IBM China System Technology Laboratory
Tel: 86-10-82453455
Email: w...@cn.ibm.com
Address: 28,ZhongGuanCun Software Park,No.8 Dong Bei Wang West
Road, Haidian District Beijing P.R.China 100193
Russell Jones ---2014/01/18
06:46:09---Hi all, My management node is experiencing a spike
of over 60 load when I boot
From: Russell Jones <russell-l...@jonesmail.me>
To: xcat-user@lists.sourceforge.net,
Date: 2014/01/18
06:46
Subject: [xcat-user]
Bad performance with 70 nodes requesting nextdestiny
Hi all,
My management node is experiencing a spike of over 60 load
when I boot
70 nodes at once and request a runimage of them. Doing a "ps
aux" shows
high iowait and what appears to be a perl process for
nextdestiny
running for each node. We had this same issue under xCAT
2.3, and was
under the hopeful impression that performance was increased
with xCAT
2.8 and nextdestiny behavior.
After about 10 minutes it seemed to have chewed through the
requests and
the nodes continued their respective chained commands. Is
there a way of
improving the way the management node handles nextdestiny
requests from
10's of nodes at once?
Thanks!
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