StarCluster - Mailing List Archive

Re: ldap user with starcluster

From: Shlomit Afgin <no email>
Date: Wed, 1 Jun 2016 05:26:58 +0000

The mail split the word createusers to 2 words, in the configuration it one word.
I will check the logs – Thanks a lot.
I did not add LDAP yet to the AMI, but I install the LDAP on the master, stop it and restart it with new startcluster configuration. LDAP is working.
In my last try, I work with regular users not LDAP.
Thank you very much for your help,

From: "MacMullan IV, Hugh" <>
Date: Tuesday, 31 May 2016 at 4:52 PM
To: Shlomit Afgin <>
Cc: starcluster <>
Subject: RE: [StarCluster] ldap user with starcluster

Good catch, Jacob!




Did you set up your AMI to use LDAP? You will have to do this before using StarCluster: the generic StarCluster AMIs will not connect to your LDAP service by default. Just to be clear.




From: [] On Behalf Of Jacob Barhak
Sent: Monday, May 30, 2016 8:49 AM
To: Shlomit Afgin <>
Cc: starcluster <>
Subject: Re: [StarCluster] ldap user with starcluster


So Shlomit,

As for error logs, you should find those under the .starcluster folder in your home directory.

Yet from what you sent, I suspect that you might have added a space in the plugin name.

Did you try "plugins = createusers" instead of "plugins = create users"

Hopefully this small correction will fix things.


On May 29, 2016 8:45 AM, "Shlomit Afgin" <> wrote:



I tried adding regular user (not LDAP).

I follow

I start the cluster after I add to the config file the lines:


plugins = create users


[plugin createusers]

setup_class = starcluster.plugins.users.CreateUsers

usernames = ralph, julia, richard


It create the users on the master and on node.

First I couldn’t login from master to node with no password and suddenly start working.

But major problem, it did not build the /opt/sge6 (which needed for submitting jobs) as it did before adding the above lines.


What can cause the problem? Where can I find error log for tracking the problem?





From: Jacob Barhak <>
Date: Wednesday, 25 May 2016 at 5:23 PM
To: Shlomit Afgin <>
Cc: starcluster <>
Subject: Re: [StarCluster] ldap user with starcluster


So Shlomit,


It seems like you are trying to do something special. And I cannot help you much.


However, I vaguely recall someone on this list trying to run starcluster with many users. If you have time, you may wish to look at the archives - yet this may be a wild goose chase since I do not recall LDAP being brought up.


If you do solve the problem, please send the solution to the list - so we will all have it.






On Wed, May 25, 2016 at 2:16 AM, Shlomit Afgin <> wrote:



User sgeadmin define as CLUSTER_USER. With sgeadmin I can login from master to node without password.

Did not use plugins or special AMI.




From: Jacob Barhak <>
Date: Tuesday, 24 May 2016 at 3:16 PM
To: Shlomit Afgin <>
Cc: starcluster <>
Subject: Re: [StarCluster] ldap user with starcluster


Hi Shlomit,


When you configured the cluster to start, did you define the user?


Can you just SSH the master without a specific user?


Some plugins define users for you, did you use one?


Also, did you use a special AMI configured a certain way?


Hopefully with some more information it will be possible to figure out what is going on.










On Sun, May 22, 2016 at 8:35 AM, Shlomit Afgin <> wrote:





1. I successfully login to cluster with the command:

         starcluster sshmaster -u username physicscluster

    if username is local user but not with ldap user.

    I get the error:

    Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
    How can I login to the cluster with the above command as ldap user?

2. How to allow/configure ldap user to submit/run jobs on the cluster? any documentation?.



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