Bug 654943

Description of problem:
Grid Engine configuration script inst_sge fails when run under a commonly found configuration in Fedora 13, 14 and RHEL6 because of new NetworkManager behavior.
I only tested this on 64-bit versions, though I don't think that matters.

Version-Release number of selected component (if applicable): 6.2u5


How reproducible: always


Steps to Reproduce:
1. Install Fedora 13, or 14, or RHEL6 on a machine that gets its host name and ip address from DHCP. In the NetworkManager applet ipv4 should be configured to automatically get settings from DHCP, ipv6 should be set to the default "ignore".
2. Verify that /etc/hosts contains a line with the external ip address and the host name with a comment that it was added by NetworkManager, and that it also has a line beginning with ::1 that has the host name in addition to the ipv6 localhost names. The host name in the ::1 line was added by NetworkManager even though there is no comment to that effect. Verify that hostname -i output two ip addresses, the external ip address and either ::1 (in Fedora 13/14) or 127.0.0.1 (in RHEL6).
3. yum install gridengine gridengine-qmaster gridengine-execd gridengine-qmon
You probably don't need to install all of these, but that's what I did when I tested
4. run the command from the correct directory for your architecture
 /usr/share/gridengine/utilbin/lx26-amd64/gethostbyname
Notice that it displays two ip addresses like hostname -i does, the second one always being 127.0.0.1. This is what will break the install script.
5. cd to /usr/share/gridengine, make a copy of the file my_configuration.conf and edit it to set ADMIN_USER=sgeadmin, HOST_LIST=the short host name of the computer, i.e., the output of hostname -s, ADD_TO_RC=true, and at the end of the file add the lines

  SGE_CLUSTER_NAME="none"
  CLUSTER_NAME="none"
  SGE_ENABLE_SMF="false"

Again, not all of this may be necessary to reproduce the bug but that is the configuration file that I used to make it happen.
6. Assuming you named the edited configuration file foo.conf, run the command

 ./inst_sge -m -x -auto ./foo.conf

Actual results:
The configuration script inst_sge completes very quickly after it reaches the point of clearing the screen. When it is done there is no /usr/share/gridengine/default directory as there should be. You can see an error log file named /tmp/install.nnnn where nnnn is some number. It shows the output you saw in step 4 and says "It is not supported for a Grid Engine installation that the local hostname contains the hostname "localhost" and/or the IP address "127.0.x.x" of the loopback interface. [...] Installation failed"

Expected results:
The configuration takes longer to complete after the step of clearing the screen and indicates successful completion when it is done, creating a proper /usr/share/gridengine/default directory and its contents.

Additional info:
This is caused by an upstream bug in NetworkManager as I commented in https://bugzilla.gnome.org/show_bug.cgi?id=629021#c6 which causes a number of problems in Fedora 13 and 14, and in RHEL6 as reported in https://bugzilla.redhat.com/show_bug.cgi?id=643443#c4

However I think there is a simple workaround that can allow gridengine to install ok before this is fixed upstream and which will actually be more correct behavior. The error is generated in the script /usr/share/gridengine/util/install_common.sh around line 1584 in the sh function CheckForLocalHostResolving() where there is a test

   for cmp in $output; do
      case "$cmp" in
      localhost*|127.0*)
         notok=true

That should be changed to look for localhost* in all the tokens like it is now, but only match 127.0* in a line that contains no other ip addresses. In other words, if multiple ip addresses are in the output then notok should not be set to true even if one of the ip addresses is 127.0* I think that is more correct anyway, because this test is supposed to protect against the situation in which a server does not have an external ip address. As long as there is an ip address that is not 127.0* then the condition is satisfied.