On Tue, 14 Sep 2004, DongInn Kim wrote:
If you could post your error output, that would be good.
When I had an error in this step, I did "Add OSCAR Clients.." and "Delete OSCAR Clients.." steps with
not-existing computers.
In other words, I have three computers ( oscar_server, oscarnode01, and oscarnode02 : One for head node, Two for client nodes)
Add Clients to a SIS Image (Original)
but I tried to add more nodes (oscarnode03 and oscarnode04) and then delete them in order not to make my cluster messed up with the fake nodes.
Add Clients to a SIS Image (Later)
What I did here is
I clicked the "Add OSCAR Clients.." button and then clicked the "Define OSCAR Clients..", which is the first step of this category.
And then I gave information about the two fake nodes.
Defining the two node was done successfully.
Since these nodes are not for the real computers, I did not go further and went to back to the main of oscar_wizard
My advice is to quit the installer following any operation like that and then rerun it if you want to try something else.
and then deleted them in order to make my cluster clean in the "Delete OSCAR Clients".
I thought my cluster is just fine because I deleted the fake nodes successfully also.
Meanwhile, I checked ODA in order to confirm that my cluster has only three real nodes by doing "oda nodes".
Unexpectedly It had 5 nodes(oscar_server, oscarnode01,2,3, and 4) still even though there was no error in deletion of nodes.
I think the functionality of deleting the nodes from ODA is missing.
Nevertheless, I tried to do "Install/Uninstall OSCAR Packages" since I believed that my cluser is still fine.
I checked the "Disable Uncommon Client Node Services" which was uninstalled before and tried to install it.
But I got the following messages and then stopped to fail to .
------------------------------------------------------------------------------------------------
executing:/opt/c3-4/cexec --pipe c3cmd-filter hostname
oscar_cluster oscarnode01:
oscar_cluster oscarnode02:
oscar_cluster oscarnode03: ssh: oscarnode03: Name or service not known
Warning: sanity check failed.
------------------------------------------------------------------------------------------------
I think it happens because ODA has still the fake nodes. What do you think?
The /etc/c3.conf file is definitely wrong. Part of what add/del node does is
that it reconfigures this file I think...but I do not know where it gets its
information...but it may be from the installer itself and not the database, so i'm not sure what is in oda matters at this point.
The install/uninstall package tries to run a hostname command via a 'cexec
hostname' as a sanity check, and in this case it failed, because node3 does
not exist. Nothing really happened except that the selector was run, but no database mods should have happened.
Ah, one more thing, I clicked "Install/Uninstall OSCAR Packages" button again to see what happens.
This time, "Disable Uncommon Client Node Services" package was already checked with different color (green)
even though I failed to install it. Then how can I install it back?
Install/Uninstall Packages (After failure)
I have no idea why this changed state, unless the selector or the configurator (if you ran it) wrote something to the database when it was started up the second time. If the sanity check fails, no database mods are performed by the packageinun lib, and the to_be_installed and to_be_uninstalled bits are not cleared, so the Gui should pop back up in
exactly the same state that it was in before the sanity check failed. This
looks like a bug, and a bad one, regardless of the state of your system.
I think there is something wrong with clearing nodes. Next time, I would test with real nodes.
Regards,
-ps-
If there is anyone who can not see the images that I attached, please let me know I will put the images as attachments.
You may want the osccalinstall.log file to see what happened but it is too long, Please let me know if you want it,
I will send it too. But the error messages are already copied and pasted up
I think that ok on the logs. The images were great.
-- John
there.
DongInn.
On Mon, 13 Sep 2004, DongInn Kim wrote:
Hi,
I am not sure It is already mentioned at the previous mails but there was no mail about this issue in the mailing list archive
of sf.net.
I have been testing the "Install/Uninstall OSCAR Packages.." step at the bottom of oscar_wizard.
When I tried to install OSCAR Packages, I was not able to find the menu for more pacakges to install.
Is this only for installing the checked packages when they are checked back?
I'm not sure what you are asking. This step is for installing/uninstalling packages after the cluster is already built.
I am wondering if "Installing/Uninstalling OSCAR packages.."step is really implemented through the cluster because
It uses c3 to push rpms and scripts out to the nodes, and installs/runs them via cexec commands. It also takes care of the server and the image.
I had an error when I tried to uninstall OSCAR packages even though I successfully installed OSCAR.
This is probably due to the lack of an uninstall script as part of the package at a guess.
I will retry this step because before this step, I defined new client nodes more that are for not-existing computers
and deleted them without "Setup Networking" and I think this error can happen from these not geuine create/delete of nodes.
Next time, I will do this step w/o any "Adding/Deleting Client nodes" in order to check if it really works.
BTW, does this step really work?
Yes, if the stars are aligned and mars is in a tight orbit. Actually its not that bad, but error recovery is not handled very well.
If you could post your error output, that would be good.
For my environments - RedHat 9 in VMware - OSCAR-3.0.1b1 (SVN version) - 1 server node - 2 client nodes.
Regards,
DongInn.
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