[StarCluster] plugin shell help

[Dan Tenenbaum]

OK, I figured out that the plugin needs to be in a file called
"something.py" and then you can refer to it in the config as
"something.MyPluginClass".

I re-launched my cluster and I am not seeing output from my plugin in either
the console or log.

Also, still getting the same error (below) in the development shell.

Thanks
Dan


On Sat, Oct 30, 2010 at 11:00 AM, Dan Tenenbaum <dtenenba at fhcrc.org> wrote:

> Hi,
> I am not much of a python programmer and I'm trying to figure out the
> plugin system.
>
> I created a ~/.starcluster/plugins directory and put a file in it called
> shortread.py.
> Here are its contents:
>
> from starcluster.clustersetup import ClusterSetup
> from starcluster.logger import log
>
> class ShortReadPlugin(ClusterSetup):
>      def __init__(self, arg1):
>           self.arg1 = arg1
>           log.info('arg1 = %s' % arg1)
>      def run(self, nodes, master, user, user_shell, volumes):
>          log.info("about to echo")
>          master.ssh.execute("echo 'hey'")
>
> As you can see, it's just a test.
>
> In my config, I put this at the bottom:
> [plugin shortreadplugin]
> SETUP_CLASS = ShortReadPlugin
> arg1=foo
>
> And above in the [global] section I put:
> plugins=shortreadplugin
>
> I'm a bit confused about whether this is right because in your example:
> http://web.mit.edu/stardev/cluster/docs/plugins.html
>
> ...you have the SETUP_CLASS as ubuntu.PackageInstaller. I'm not sure where
> the "ubuntu" fits into this. Is it like java where I need to have a folder
> called ubuntu where the class resides?
>
> Anyway, I fired up my cluster and went to test this with "starcluster
> shell" and got the following output:
>
> In [5]: cluster.run_plugin('shortreadplugin', 'myfirstcluster', cfg)
> ---------------------------------------------------------------------------
> TypeError                                 Traceback (most recent call last)
>
> /Library/Python/2.6/site-packages/StarCluster-0.91-py2.6.egg/starcluster/cli.pyc
> in <module>()
> ----> 1
>       2
>       3
>       4
>       5
>
> /Library/Python/2.6/site-packages/StarCluster-0.91-py2.6.egg/starcluster/cluster.pyc
> in run_plugin(plugin_name, cluster_tag, cfg)
>     170 def run_plugin(plugin_name, cluster_tag, cfg):
>     171     ec2 = cfg.get_easy_ec2()
> --> 172     cl = get_cluster(cluster_tag)
>     173     cl.load_receipt()
>     174     plug = cfg.get_plugin(plugin_name)
>
> TypeError: get_cluster() takes exactly 2 arguments (1 given)
>
>
> It's hard for me to understand what's happening here. I of course am not
> calling get_cluster directly. Is there a bug in run_plugin() or is there
> something wrong in my setup, or both?
>
> Thanks
> Dan
>
>
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