[StarCluster] Fixed 'ZeroDivisionError: float division' error when launching a cluster

[Justin Riley]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi Stuart,

Thanks for reporting, this should be fixed in the latest github code.
Please let me know if you run into similar issues in the future.

~Justin

On 02/09/2011 06:28 PM, Stuart Young wrote:
> Hi All,
> 
> Fyi, I came across an intermittent error message when launching a 
> cluster with the latest versions of the trunk and the load balancer branch:
> 
>    File "build/bdist.linux-x86_64/egg/starcluster/progressbar.py", line 
> 261, in percentage
>      return self.currval * 100.0 / self.maxval
> ZeroDivisionError: float division
> 
> I fixed it by adding a pause in cluster.py BEFORE looking for running 
> instances:
> 
> LINE 1039, cluster.py:
> 
>          # ADDED SLEEP TO AVOID CRASH JUST AFTER FIRST CHECK OF RUNNING 
> INSTANCES
>          # WHEN INSTANCES ARE NOT YET AVAILABLE
>          # >>> Waiting for all nodes to be in a 'running' state...
>          time.sleep(interval)
> 
> 
> FULL ERROR OUTPUT:
> 
> starcluster start smallcluster
> StarCluster - (http://web.mit.edu/starcluster) (v. 0.9999)
> Software Tools for Academics and Researchers (STAR)
> Please submit bug reports to starcluster at mit.edu
> 
>  >>> Using default cluster template: smallcluster
>  >>> AutoMount.__init__    Running AutoMount plugin.
>  >>> Validating cluster template settings...
>  >>> Cluster template settings are valid
>  >>> Starting cluster...
>  >>> Launching a 2-node cluster...
>  >>> Launching master (ami: ami-a5c42dcc, type: m1.large)
>  >>> Launching node001 (ami: ami-a5c42dcc, type: m1.large)
>  >>> Creating security group @sc-smallcluster...
> Reservation:r-0664ab6b
>  >>> Waiting for cluster to come up... (updating every 30s)
>  >>> Waiting for all nodes to be in a 'running' state...
> Traceback (most recent call last):
>    File "build/bdist.linux-x86_64/egg/starcluster/cli.py", line 152, in main
>      sc.execute(args)
>    File "build/bdist.linux-x86_64/egg/starcluster/commands/start.py", 
> line 195, in execute
>      scluster.start(create=create, create_only=create_only, validate=False)
>    File "build/bdist.linux-x86_64/egg/starcluster/cluster.py", line 
> 1191, in start
>      return self._start(create, create_only)
>    File "build/bdist.linux-x86_64/egg/starcluster/utils.py", line 69, in 
> wrap_f
>      res = func(*arg, **kargs)
>    File "build/bdist.linux-x86_64/egg/starcluster/cluster.py", line 
> 1209, in _start
>      self._setup_cluster()
>    File "build/bdist.linux-x86_64/egg/starcluster/cluster.py", line 
> 1223, in _setup_cluster
>      self.wait_for_cluster()
>    File "build/bdist.linux-x86_64/egg/starcluster/cluster.py", line 
> 1041, in wait_for_cluster
>      pbar.update(0)
>    File "build/bdist.linux-x86_64/egg/starcluster/progressbar.py", line 
> 312, in update
>      self.prev_percentage = self.percentage()
>    File "build/bdist.linux-x86_64/egg/starcluster/progressbar.py", line 
> 261, in percentage
>      return self.currval * 100.0 / self.maxval
> ZeroDivisionError: float division
> 
> cli.py:173 - ERROR - Oops! Looks like you've found a bug in StarCluster
> cli.py:174 - ERROR - Debug file written to: /tmp/starcluster-debug-root.log
> cli.py:175 - ERROR - Look for lines starting with PID: 3104
> cli.py:177 - ERROR - Please submit this file, minus any private information,
> cli.py:178 - ERROR - to starcluster at mit.edu
> 
> 
> Cheers,
> 
> Stuart
> _______________________________________________
> StarCluster mailing list
> StarCluster at mit.edu
> http://mailman.mit.edu/mailman/listinfo/starcluster

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.17 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAk15L0YACgkQ4llAkMfDcrnieACfQ7qOSHBX5oH2Kkr5lta/AaLt
mloAnAuaqPuLiVzaArrR0FPqc0QQGMqe
=BpCR
-----END PGP SIGNATURE-----