topic Re: error while starting cmu service in Server Clustering

error while starting cmu service

Joshy PJ — Thu, 19 Sep 2013 03:54:30 GMT

I am getting below error while starting cmu service. I am able to start cmu by disabling “CMU_CHECK_TFTP_SERVER” in the configuration file.

Please let me know what may the issue …

[root@pa-st188 pxelinux.cfg]# /etc/init.d/cmu start

starting tftp server check ... done

***

*** tftp could not download /opt/cmu/ntbt/tftp/cmulinuz.x86_64 from <15.215.16.188>

*** check that your tftp server exports /opt/cmu/ntbt/tftp and the cmu management ip address is correct

*** specific tftp servers (such as tftp-hpa for debian/ubuntu) may also require the --secure flag removed

***

*** on RHEL/SLES and clones also check that xinetd is started and well

***

*** note: setting CMU_CHECK_TFTP_SERVER to "no"

*** into /opt/cmu/etc/cmuserver.conf will bypass

*** this check (at your own risk)

***

*** tftp is required for all netboot operations (cloning/backup/autoinstall/diskless boot)

***

cmu:core(standard) failed configuring

cmu:java not running

cmu:cmustatus not running

cmu:monitoring not running

cmu:dynamic user groups unconfigured (cf /opt/cmu/etc/cmuserver.conf CMU_DYNAMIC_UG_INPUT_SCRIPTS)

cmu:web service not running

cmu:nfs server running

cmu:dhcpd.conf no cmu header

cmu:high-availability unconfigured

[root@pa-st188 pxelinux.cfg]# cat /etc/exports

#cmu_nfs_export_netboot_begin; do not remove or it will break cmu ; uninstall instead

/opt/cmu/ntbt/rp *(sync,ro,no_all_squash,no_subtree_check,no_root_squash,fsid=4292137804)

#cmu_nfs_export_netboot_end

[root@pa-st188 pxelinux.cfg]# cat /etc/xinetd.d/tftp

# default: off

# description: The tftp server serves files using the trivial file transfer \

# protocol. The tftp protocol is often used to boot diskless \

# workstations, download configuration files to network-aware printers, \

# and to start the installation process for some operating systems.

service tftp

{

socket_type = dgram

protocol = udp

wait = yes

user = root

server = /usr/sbin/in.tftpd

per_source = 11

cps = 100 2

flags = IPv4

server_args = /opt/cmu/ntbt/tftp

disable = no

}

[root@pa-st188 pxelinux.cfg]# cat /opt/cmu/ntbt/tftp

cat: /opt/cmu/ntbt/tftp: Is a directory

[root@pa-st188 pxelinux.cfg]# ll /opt/cmu/ntbt/tftp

total 5704

lrwxrwxrwx 1 1000 1000 17 Sep 18 22:10 cmulinuz -> ./cmulinuz.x86_64

-rw-r--r-- 1 1000 1000 5817760 Jan 16 2013 cmulinuz.x86_64

-rw-r--r-- 1 1000 1000 13148 Jun 20 2006 pxelinux.0

drwxr-xr-x 2 1000 1000 4096 Feb 25 2009 pxelinux.cfg

[root@pa-st188 pxelinux.cfg]#

Re: error while starting cmu service

Chris Holmes (CMU) — Thu, 19 Sep 2013 10:26:42 GMT

Hello,

When tftp doesn't work, it may either be a firewall issue (if the firewall is enabled), an SELinux issue (if SELinux is enabled), or a hostname issue. Regarding the hostname issue: make sure that localhost and the loopback IP and the hostname and IP address are both configured in the /etc/hosts file.

A good way to test your configuration is to run '/opt/cmu/bin/cmu_mgt_config -t'. If there are errors, then you can either fix them manually or run '/opt/cmu/bin/cmu_mgt_config -c' to properly configure your CMU management node.

Hope this helps.

Regards,

--Chris

Re: error while starting cmu service

Chris Holmes (CMU) — Thu, 19 Sep 2013 10:33:05 GMT

Two more issues that we have seen with tftp:

1. The old /etc/xinetd.d/tftp_before_cmu_mgt_config is interfering with the new /etc/xinetd.d/tftp config. Make sure that /etc/xinetd.d/tftp is the only "tftp" file in /etc/xinetd.d/.

2. On some Linux distributions, when you restart the xinetd service the old tftpd daemon does not die, so the new tftp configuration is not processed. Run '/etc/init.d/xinetd stop' and then run 'ps ax | grep tftp', and if the daemon is still running then kill it. Then run '/etc/init.d/xinetd start' to restart it.

Regards,

--Chris

Re: error while starting cmu service

Joshy PJ — Thu, 19 Sep 2013 16:22:18 GMT

thanks Chris ......

Re: error while starting cmu service

CenSlow — Thu, 26 Sep 2013 18:09:44 GMT

What ended up fixing it? Did you find multiple tftp* files in that directory, or?

Re: error while starting cmu service

Joshy PJ — Thu, 26 Sep 2013 18:12:11 GMT

yes , there was tftp.save , tftp.cmu_mgt_.. some file which was created by the rpm installation of cmu.. i removed all & restarted xinetd.d service . then its start workd .. :)