Re: Launch failure in 0.95.4 w/no spot and different master/compute set

From: Justin Riley <no email>
Date: Thu, 24 Apr 2014 10:45:46 -0400

John,

This is a regression from the changes in 0.95.4. I've committed a fix
for this to github already. I will release 0.95.5 that adds r3 instance
type support and fixes this issue. Thanks for reporting.

~Justin

On Thu, Apr 24, 2014 at 02:11:10AM +0000, Lilley, John F. wrote:
> Hi All,
> I’m having a new problem with Starcluster 0.95.4 while launching clusters
> without spot enabled *and* the master instance is a different size from
> the execution host (in this case the master is m3.medium and the execution
> hosts are set to m3.2xlarge) *and* with only when cluster size =1, master
> only. I have already successfully launched three spot enabled clusters up
> with the exact same configuration in 0.95.4 but now need to create another
> cluster that will be on-demand only for users submitting jobs that must
> not be interrupted by fluctuations in the spot market. 
> I’ve pasted the output during failure below. If I simply enable spot the
> error does not occur *or* if I set cluster size from 1 to 2 (which adds a
> single compute/execution instance in addition to the master) the problem
> does not occur. I’ve created a completely fresh configuration to make sure
> it wasn’t some weird formatting issue.
> Thanks,
> John
> >>> Using default cluster template: ondemand
> >>> Validating cluster template settings...
> >>> Cluster template settings are valid
> >>> Starting cluster...
> >>> Launching a 1-node cluster...
> >>> Creating security group _at_sc-new5...
> Reservation:r-97d0929e
> !!! ERROR - InvalidParameterValue: Minimum instance count must be greater
> than zero
> Traceback (most recent call last):
>   File "/usr/lib/python2.7/site-packages/starcluster/cli.py", line 274, in
> main
>     sc.execute(args)
>   File "/usr/lib/python2.7/site-packages/starcluster/commands/start.py",
> line 244, in execute
>     validate_running=validate_running)
>   File "/usr/lib/python2.7/site-packages/starcluster/cluster.py", line
> 1626, in start
>     return self._start(create=create, create_only=create_only)
>   File "<string>", line 2, in _start
>   File "/usr/lib/python2.7/site-packages/starcluster/utils.py", line 112,
> in wrap_f
>     res = func(*arg, **kargs)
>   File "/usr/lib/python2.7/site-packages/starcluster/cluster.py", line
> 1641, in _start
>     self.create_cluster()
>   File "/usr/lib/python2.7/site-packages/starcluster/cluster.py", line
> 1163, in create_cluster
>     self._create_flat_rate_cluster()
>   File "/usr/lib/python2.7/site-packages/starcluster/cluster.py", line
> 1196, in _create_flat_rate_cluster
>     force_flat=True)
>   File "/usr/lib/python2.7/site-packages/starcluster/cluster.py", line
> 966, in create_nodes
>     resvs.append(self.ec2.request_instances(image_id, **kwargs))
>   File "/usr/lib/python2.7/site-packages/starcluster/awsutils.py", line
> 523, in request_instances
>     **shared_kwargs)
>   File "/usr/lib/python2.7/site-packages/starcluster/awsutils.py", line
> 624, in run_instances
>     return self.conn.run_instances(image_id, **kwargs)
>   File "/usr/lib/python2.7/site-packages/boto/ec2/connection.py", line
> 935, in run_instances
>     verb='POST')
>   File "/usr/lib/python2.7/site-packages/boto/connection.py", line 1177,
> in get_object
>     raise self.ResponseError(response.status, response.reason, body)
> EC2ResponseError: EC2ResponseError: 400 Bad Request
> <?xml version="1.0" encoding="UTF-8"?>
> <Response><Errors><Error><Code>InvalidParameterValue</Code><Message>Minimum
> instance count must be greater
> than zero</Message></Error></Errors><RequestID>08116944-4d1c-4e14-96c7-cdd485a06152</RequestID></Response>

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Received on Thu Apr 24 2014 - 10:45:49 EDT