[LU-4789] lustre_config fails to Verify network connectivity

• Type: Bug
• Resolution: Duplicate
• Priority: Minor
• Affects Version/s: Lustre 1.8.9
• Environment: CentOS 5.3
• Severity: 3
• Assignee: WC Triage
• Reporter: Martin Hecht

Description

lustre_config: Operating on the following nodes: sfs1,sfs2,sfs3,sfs4
lustre_config: Checking the cluster network connectivity and hostnames...
lc_net: Verifying network connectivity between "sfs1" and "sfs2"...
lc_net: ERROR: remote_check(): Local host resolves sfs2 to IP address "192.168.8.2", while its own resolution is "192.168.8.2
192.168.8.2". They are not the same!

the address is just mentioned once in /etc/hosts

suggested Fix:

in lc_net in remote_check():

— lc_net.orig 2014-03-20 17:32:19.000000000 +0100
+++ lc_net 2014-03-20 17:31:54.000000000 +0100
@@ -171,7 +171,7 @@

1. Get the IP address of ${HOST_NAMES[i]} from its own ping
   ip_pattern="[0-9] {1,3}\.[0-9]{1,3}

   \.[0-9]

   {1,3}\.[0-9]{1,3}

   "
   ip_addr=`echo "${ret_str}" | egrep -o "${ip_pattern}"`

• ip_addr=`echo "${ip_addr}" | sed -e 's/^(//' -e 's/)$//'`
  + ip_addr=`echo "${ip_addr}" | sed -e 's/^(//' -e 's/)$//' | sort | uniq`

1. Compare IP addresses
2. Check whether ${HOST_NAMES[i]} agrees with the local host

Issue Links

• duplicates: LU-1049 lc_net does not parse unexpected output from pdsh well