Hi Yuan,
I ended up with the following config (there’s probably a bit of redundancy
here):
Object name: mgt0
arch=x86_64
authdomain=mcri.edu.au
chain=standby
conserver=xcat
currchain=boot
currstate=boot
domaintype=activedirectory
groups=mgt,vm
ip=10.40.113.99
mac=<snip>
mgt=esx
netboot=pxe
nfsdir=/install
nfsserver=xcat
nicaliases.eth0=mgt0
nicaliases.eth1=mgt0-pub
nicaliases.eth2=mgt0-data
nichostnamesuffixes.eth0=-mgmt
nichostnamesuffixes.eth1=-pub
nichostnamesuffixes.eth2=-data
nicips.eth0=10.40.113.99
nicips.eth1=172.16.13.99
nicips.eth2=10.50.113.99
nicnetworks.eth0=Management
nicnetworks.eth1=Service
nicnetworks.eth2=Data
nictypes.eth0=Ethernet
nictypes.eth1=Ethernet
nictypes.eth2=Ethernet
os=centos7.5
otherinterfaces=-pub:172.16.13.99,-data:10.50.113.99
ou=<snip>
postbootscripts=otherpkgs
postscripts=syslog,remoteshell,syncfiles,setupntp,confignics,MCRI_MgtSetup
profile=mgt
provmethod=centos7-mgt
routenames=14NetRoute,MySQLUCSCRoute
servicenode=xcat
status=booted
statustime=11-01-2018 15:07:59
updatestatus=synced
updatestatustime=11-01-2018 14:06:16
I’m also now running a postscript to set eth1 to receive its reserved IP from
our public DHCP server as a work around and this seems to do what I’d like in
terms of setting the hostname correctly.
Cheers,
Sandra
From: Yuan Y Bai <[email protected]>
Sent: Thursday, 1 November 2018 6:49 PM
To: [email protected]
Cc: [email protected]
Subject: Re: [xcat-user] unexpected hostname
Hi Sandra,
I define mgt0 node in my MN, delete `mgt0-pub:172.16.13.99... ...` in
`otherinterfaces` from hosts table, and add `nicaliases.eth0=mgt0-mgt` in node
definition, then execute `makehosts mgt0`, it can generate `mgt0-pub` and
`mgt0-data` in /etc/hosts file, the domain `cluster.com` is coming from my
`site` table. I curious that you need to define mgt0-pub and mgt0-data in
otherinterfaces from `hosts` table.
BTW: is there DHCP server for eth1 before the node provision?
My example here:
[root@bybc0607 ~]# lsdef mgt0
Object name: mgt0
arch=x86_64
authdomain=mcri.edu.au
chain=standby
conserver=xcat
currchain=boot
currstate=boot
domaintype=activedirectory
groups=mgt,vm
hostnames=mgt0
ip=10.40.113.99
mac=<snip>
mgt=esx
netboot=pxe
nfsdir=/install
nfsserver=xcat
nicaliases.eth0=mgt0-mgt
nichostnamesuffixes.eth2=-data
nichostnamesuffixes.eth1=-pub
nicips.eth2=10.50.113.99
nicips.eth1=172.16.13.99
nicips.eth0=10.40.113.99
nicnetworks.eth2=Data
nicnetworks.eth1=Public
nicnetworks.eth0=Management
nictypes.eth2=Ethernet
nictypes.eth1=Ethernet
nictypes.eth0=Ethernet
os=centos7.5
ou=<snip>
postbootscripts=otherpkgs,<snip>
postscripts=syslog,remoteshell,syncfiles,setupntp,confignics,<snip>
profile=mgt
provmethod=centos7-mgt
routenames=14NetRoute,MySQLUCSCRoute
servicenode=xcat
status=failed
statustime=10-29-2018 14:14:01
updatestatus=failed
updatestatustime=10-29-2018 13:53:40
[root@bybc0607 ~]# makehosts mgt0
[root@bybc0607 ~]# grep mgt0 /etc/hosts
10.40.113.99 mgt0 mgt0.cluster.com mgt0-mgt
10.50.113.99 mgt0-data mgt0-data.cluster.com
172.16.13.99 mgt0-pub mgt0-pub.cluster.com
[root@bybc0607 ~]# lsxcatd -v
Version 2.14.4 (git commit 51bd7fea2746d1812aa0eba3d655d63e16b718e2, built Wed
Oct 17 06:15:55 EDT 2018)
Best Regards
--------------------------------------------------
Yuan Bai (白媛)
CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: [email protected]<mailto:[email protected]>
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193
IBM环宇大厦
北京市海淀区东北旺西路8号，中关村软件园28号楼
邮编:100193
----- Original message -----
From: Sandra Maksimovic
<[email protected]<mailto:[email protected]>>
To: 'xCAT Users Mailing list'
<[email protected]<mailto:[email protected]>>
Cc:
Subject: Re: [xcat-user] unexpected hostname
Date: Thu, Nov 1, 2018 1:29 PM
Btw I managed to work around this issue by setting eth1 to use DHCP and eth0 to
send DHCP_HOSTNAME using a postscript.
Cheers,
Sandra
From: Sandra Maksimovic
Sent: Tuesday, 30 October 2018 6:30 PM
To: 'xCAT Users Mailing list'
<[email protected]<mailto:[email protected]>>
Subject: RE: [xcat-user] unexpected hostname
Hi Yuan,
Just to let you know, it seems that when I remove
otherinterfaces=”mgt0-pub:172.16.13.99,mgt0-data:10.50.113.99” from the mgt0
definition, the /etc/hosts file does not regenerate with mgt0-pub or mgt0-data
entries, only mgt0 and its fqdn is listed.
The xcat servicenode should be managing nodes over the
10.40.0.0/24<http://10.40.0.0/24> network, however, I don’t think this has been
setup properly because the servicenode table is blank. A lot of this new
cluster’s configuration has been carried over from our current prod iteration
so I’m not sure whether some of these definitions are still relevant.
The /var/lib/dhclient directory is missing the dhclient.leases file but
contains the following:
# cat chrony.servers.eth0
10.40.115.100 iburst
# cat ntp.conf.predhclient.eth0
<blank>
The IP 10.40.115.100 is the management NIC on my xCAT server, which seems to
indicate the correct provisioning network…
I’ve just noticed that when I run ‘dhclient’ manually on the ‘mgt0-pub’ node
the leases file appears along with some others…
dhcp-server-identifier on eth0 (which is the mgt/provisioning NIC on the
10.40.0.0 net) is 10.40.115.100
host-name is “mgt0”
I’m now wondering what would have stopped this information from being generated
during deployment? And would this have managed to impact the hostname?
Many thanks,
Sandra
From: Yuan Y Bai <[email protected]<mailto:[email protected]>>
Sent: Monday, 29 October 2018 4:40 PM
To: [email protected]<mailto:[email protected]>
Cc: [email protected]<mailto:[email protected]>
Subject: Re: [xcat-user] unexpected hostname
Hi Sandra
From your node definition, `nichostnamesuffixes.eth1=-pub
nicips.eth1=172.16.13.99` will generate `172.16.13.99 mgt0-pub ......` entry in
/etc/hosts file. No need to `mgt0-pub:172.16.13.99` in otherinterfaces.
And you use service node, `servicenode=xcat`, which network service node use?
Could you login `mgt0-pub` and check lease file under directory
`/var/lib/dhclient` to see what are `dhcp-server-identifier` and `host-name`?
It seems `mgt0` node get hostname `mgt0-pub` from 172.xx.xx.xx DHCP server. The
provision network should 10.xx.xx.xx network.
Best Regards
--------------------------------------------------
Yuan Bai (白媛)
CSTL HPC System Management Development
Tel:86-10-82451401
E-mail: [email protected]<mailto:[email protected]>
Address: IBM ZGC Campus. Ring Building 28,
ZhongGuanCun Software Park,No.8 Dong Bei Wang West Road, Haidian District,
Beijing P.R.China 100193
IBM环宇大厦
北京市海淀区东北旺西路8号，中关村软件园28号楼
邮编:100193
----- Original message -----
From: Sandra Maksimovic
<[email protected]<mailto:[email protected]>>
To: "'[email protected]'"
<[email protected]<mailto:[email protected]>>
Cc:
Subject: Re: [xcat-user] unexpected hostname
Date: Mon, Oct 29, 2018 12:15 PM
Hi Bin,
Thanks for your response.
mgt0 and mgt0-pub do not point to the same IP address nor are they in the same
subnet. Please see the output below:
Object name: mgt0
arch=x86_64
authdomain=mcri.edu.au
chain=standby
conserver=xcat
currchain=boot
currstate=boot
domaintype=activedirectory
groups=mgt,vm
hostnames=mgt0
ip=10.40.113.99
mac=<snip>
mgt=esx
netboot=pxe
nfsdir=/install
nfsserver=xcat
nichostnamesuffixes.eth0=-mgmt
nichostnamesuffixes.eth1=-pub
nichostnamesuffixes.eth2=-data
nicips.eth0=10.40.113.99
nicips.eth1=172.16.13.99
nicips.eth2=10.50.113.99
nicnetworks.eth0=Management
nicnetworks.eth1=Public
nicnetworks.eth2=Data
nictypes.eth0=Ethernet
nictypes.eth1=Ethernet
nictypes.eth2=Ethernet
os=centos7.5
otherinterfaces=mgt0-pub:172.16.13.99,mgt0-data:10.50.113.99
ou=<snip>
postbootscripts=otherpkgs,<snip>
postscripts=syslog,remoteshell,syncfiles,setupntp,confignics,<snip>
profile=mgt
provmethod=centos7-mgt
routenames=14NetRoute,MySQLUCSCRoute
servicenode=xcat
status=failed
statustime=10-29-2018 14:14:01
updatestatus=failed
updatestatustime=10-29-2018 13:53:40
FYI some of our postscripts are failing during deployment which is why the
updatestatus=failed.
Also, thanks Brian for your suggestion, I shall look into this further
regarding the NIC setup. I did a quick test and this doesn’t appear to be what
I’m after at this stage since the deployed node’s hostname is unaffected when
specifying the nicaliases.
Thanks,
Sandra
‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Friday, October 26, 2018 5:17 PM, Bin XA Xu
<[email protected]<mailto:[email protected]>> wrote:
Hi Sandra,
Is the mgt0 and mgt0-pub pointing to the same IP address, or in the same
subnet? And what's your `mgt01` definition, you can use `lsdef mgt01` to get
the information and hide the sensitive attributes.
And Yuan, do you have more suggestions?
Bin Xu
HPC Software Development
Software Defined Infrastructure, IBM Systems
Phone: 86-010-82454067
E-mail: [email protected]<mailto:[email protected]>
----- Original message -----
From: Sandra Maksimovic via xCAT-user
<[email protected]<mailto:[email protected]>>
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Cc: Sandra Maksimovic <[email protected]<mailto:[email protected]>>
Subject: [xcat-user] unexpected hostname
Date: Thu, Oct 25, 2018 11:35 PM
Hi all,
xCAT/HPC/list newbie here!
I have recently configured an xCAT node and am attempting to provision a
separate management node, but for some reason xCAT is sort of not applying the
expected hostname.
I'd like the resulting hostname on the node to just be "mgt0", but instead it's
tacking on the public NIC suffix as well as the FQDN, i.e.
mgt0-pub.meerkat.mcri.edu.au
The cluster is entirely CentOS7 based and will be eventually utilising MOAB and
PBS/Torque for scheduling and resource management. The version of xCAT for this
particular build is v2.14.4.
I've trawled through the debug enabled build logs and stepped through
post.rh.common and from what I can tell the node should just be named "mgt0"
(sans all suffixes).
Also, the DNS on the xCAT node contains entries for "mgt0", "mgt0-data",
"mgt0-pub", but (if this is indeed the issue) I'm not sure why xCAT would have
selected "mgt0-pub" to hand out when the node is being provisioned via its
management IP which is actually associated with "mgt0" (as opposed to its
public one which is associated with "mgt0-pub").
Any ideas on other avenues that might be worth investigating?
Also, please feel free recommend some useful resources for learning xCAT and/or
HPC in general! I'm already heavily utilising the official xCAT docs and the
Sourceforge Wiki/mailing list search...
Cheers,
Sandra
Sent from ProtonMail<https://protonmail.ch>, encrypted email based in
Switzerland.
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