[StarCluster] Fwd: StarCluster Digest, Vol 44, Issue 5

Tue May 7 15:37:43 EDT 2013

Sergio:

One job needs to run to completion before the stats are available to begin loadbalancing in StarCluster. Like:

echo hostname | qsub -o /dev/null -j y

It's funny, I just ran into those same two issues (timezone and no completed job) recently while fiddling with my own AMIs and loadbalancing.

Cheers, Hugh

From: starcluster-bounces at mit.edu [mailto:starcluster-bounces at mit.edu] On Behalf Of Sergio Mafra
Sent: Tuesday, May 07, 2013 3:30 PM
To: starcluster at mit.edu
Subject: [StarCluster] Fwd: StarCluster Digest, Vol 44, Issue 5

Hi fellows,

Any help on this.

All the best,

Sergio

---------- Forwarded message ----------
From: Sergio Mafra <sergiohmafra at gmail.com<mailto:sergiohmafra at gmail.com>>
Date: Tue, May 7, 2013 at 4:17 PM
Subject: Re: [StarCluster] StarCluster Digest, Vol 44, Issue 5
To: Rajat Banerjee <rajatb at post.harvard.edu<mailto:rajatb at post.harvard.edu>>

Hi Rajat,

I think that the date problem was over. Now we´ve got a new one. Check it out:

ubuntu at domU-12-31-39-02-19-36:~$ starcluster loadbalance spotcluster
StarCluster - (http://star.mit.edu/cluster) (v. 0.9999)
Software Tools for Academics and Researchers (STAR)
Please submit bug reports to starcluster at mit.edu<mailto:starcluster at mit.edu>

>>> Starting load balancer (Use ctrl-c to exit)
Maximum cluster size: 5
Minimum cluster size: 1
Cluster growth rate: 1 nodes/iteration

>>> Loading full job history
*** WARNING - Failed to retrieve stats (1/5):
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/balancers/sge/__init__.py", line 515, in get_stats
    self.stat = self._get_stats()
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/balancers/sge/__init__.py", line 493, in _get_stats
    qacct = '\n'.join(master.ssh.execute(qacct_cmd))
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/sshutils/__init__.py", line 538, in execute
    msg, command, exit_status, out_str)
RemoteCommandFailed: remote command 'source /etc/profile && qacct -j -b 201305071615' failed with status 1:
no jobs running since startup
/opt/sge6/default/common/accounting: No such file or directory
*** WARNING - Retrying in 60s

Just to tell you that I´m running MPICH2. This is part of my config file:

[cluster NewaveUbuntuHVM]
KEYNAME = MasterNode
CLUSTER_SIZE = 5
CLUSTER_USER = sgeadmin
CLUSTER_SHELL = bash
MASTER_IMAGE_ID = ami-7f1d8a16
NODE_IMAGE_ID = ami-411d8a28
NODE_INSTANCE_TYPE = cr1.8xlarge
PLUGINS = mpich2
VOLUMES = newave

All the best,

Sergio

On Mon, May 6, 2013 at 10:42 AM, Sergio Mafra <sergiohmafra at gmail.com<mailto:sergiohmafra at gmail.com>> wrote:
Hi Rajat,

Thanks so much for your help. I´ll do as you said and report the results here.

All the best,

Sergio

On Sun, May 5, 2013 at 2:48 PM, Rajat Banerjee <rajatb at post.harvard.edu<mailto:rajatb at post.harvard.edu>> wrote:
Hi Sergio,
Sorry for the delayed response. Busy week at work. Adding starcluster alias back, in case this helps other people in the future.

Like I said, I'm not sure why your instance is coming up with PDT in the EC2 instance, since from what I remember it would always return UTC.

Is it possible for you to download the latest dev version if you haven't tried that already?

http://star.mit.edu/cluster/docs/latest/contribute.html

Slightly different directions than the one you specified. Then, you can modify this file:
starcluster/balancers/sge/__init__.py line 466
To replace UTC with PDT. Then run the ELB, and it'll run the latest code. Let me know if that works, and we can file a bug and go through the formal process of letting you switch the timezone. I'm guessing that you're pretty familiar with python programming, but if you have more problems then feel free to ask more questions.

Best,
Rajat

On Tue, Apr 30, 2013 at 2:07 PM, Sergio Mafra <sergiohmafra at gmail.com<mailto:sergiohmafra at gmail.com>> wrote:
Hi Rajat,

Thanks so much for your kindness in order to find out where this error was. Nice!

It´s a little bit odd to understand what is causing that since I´m using the SC Controller as an instance in the same zone (us-east-1d) as the cluster launched by it. So this should be in the same time format...???

What I did was donwload the code directly from the GIT´s site and compile it as described in http://star.mit.edu/cluster/docs/latest/installation.html

???

All the best,

Sergio

On Tue, Apr 30, 2013 at 2:18 PM, Rajat Banerjee <rajatb at post.harvard.edu<mailto:rajatb at post.harvard.edu>> wrote:
Sergio,
I looked at the code that is causing your problems. It's this line:
return datetime.datetime.strptime(str, "%a %b %d %H:%M:%S UTC %Y")

where 'str' is the output of the *remote* call to date. My mac returns this:
rbanerjee:~/starcluster/StarCluster/starcluster/balancers/sge $ date
Tue Apr 30 13:12:44 EDT 2013
Which looks like it would time format OK. One oddity is that your time format is returning PDT when UTC is expected:

ValueError: time data 'Tue Apr 30 07:01:35 PDT 2013' does not match format '%a %b %d %H:%M:%S UTC %Y'

Not sure what's causing the problems since it looks mostly right, but feel free to tweak the time setting in the code in starcluster/balancers/sge/__init__.py line 466 to make the pattern match yours. Do you know why your time zone may be set differently than other AWS instances we've used? Custom images?
Best,
Rajat

On Tue, Apr 30, 2013 at 12:43 PM, <starcluster-request at mit.edu<mailto:starcluster-request at mit.edu>> wrote:
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Today's Topics:

   1. Unable to mount ebs volume (Jerry Lee, GW/US)
   2. LoadBalance (Sergio Mafra)

---------- Forwarded message ----------
From: "Jerry Lee, GW/US" <Jerry.Lee at genewiz.com<mailto:Jerry.Lee at genewiz.com>>
To: <starcluster at mit.edu<mailto:starcluster at mit.edu>>
Cc:
Date: Mon, 15 Apr 2013 17:11:38 -0500
Subject: [StarCluster] Unable to mount ebs volume
Hi,

I am a beginner of using the StarCluster. I created a ebs volme via Amazon AWS and configure it on the config file to use it for my cluster, but no matter what I do, it doesn't automatically mount the ebs volume onto the cluster. Please help.

[cluster jerrycluster]
EXTENDS = smallcluster
VOLUMES = testdata

[volume testdata]
VOLUME_ID=vol-a0fe24f9
MOUNT_PATH=/data

>>> Waiting for cluster to come up... (updating every 30s)
>>> Waiting for instances to activate...
>>> Waiting for all nodes to be in a 'running' state...
2/2 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Waiting for SSH to come up on all nodes...
2/2 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Waiting for cluster to come up took 1.847 mins
>>> The master node is ec2-54-234-229-206.compute-1.amazonaws.com<http://ec2-54-234-229-206.compute-1.amazonaws.com>
>>> Setting up the cluster...
>>> Configuring hostnames...
2/2 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Creating cluster user: None (uid: 1001, gid: 1001)
2/2 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Configuring scratch space for user(s): sgeadmin
2/2 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Configuring /etc/hosts on each node
2/2 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Starting NFS server on master
>>> Configuring NFS exports path(s):
/home
>>> Mounting all NFS export path(s) on 1 worker node(s)
1/1 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Setting up NFS took 0.073 mins
>>> Configuring passwordless ssh for root
>>> Configuring passwordless ssh for sgeadmin
>>> Shutting down threads...
20/20 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Configuring SGE...
>>> Configuring NFS exports path(s):
/opt/sge6
>>> Mounting all NFS export path(s) on 1 worker node(s)
1/1 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Setting up NFS took 0.020 mins
>>> Installing Sun Grid Engine...
1/1 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Creating SGE parallel environment 'orte'
2/2 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Adding parallel environment 'orte' to queue 'all.q'
>>> Shutting down threads...
20/20 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 100%
>>> Configuring cluster took 1.325 mins
>>> Starting cluster took 3.197 mins

Thanks,

Jerry Lee

Jerry Lee
Assistant Manager of Global Infrastructure
GENEWIZ Inc.
40 Cragwood Road. Suite 201
South Plainfield, NJ 07080
Phone: 908-222-0711 ext. 3379<tel:908-222-0711%20ext.%203379>
Fax: 908-333-4511<tel:908-333-4511>
jerry.lee at genewiz.com<mailto:jerry.lee at genewiz.com>
www.genewiz.com<http://www.genewiz.com/>

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---------- Forwarded message ----------
From: Sergio Mafra <sergiohmafra at gmail.com<mailto:sergiohmafra at gmail.com>>
To: "starcluster at mit.edu<mailto:starcluster at mit.edu>" <starcluster at mit.edu<mailto:starcluster at mit.edu>>
Cc:
Date: Tue, 30 Apr 2013 11:05:45 -0300
Subject: [StarCluster] LoadBalance
Hi fellows,

I´m testing StarCluster version 0.999 and so far so good.
one thing that isn´t working is loadbalance. This is what I get:

ubuntu at domU-12-31-39-02-19-36:~$ starcluster loadbalance newcam
StarCluster - (http://star.mit.edu/cluster) (v. 0.9999)
Software Tools for Academics and Researchers (STAR)
Please submit bug reports to starcluster at mit.edu<mailto:starcluster at mit.edu>

>>> Starting load balancer (Use ctrl-c to exit)
Maximum cluster size: 3
Minimum cluster size: 1
Cluster growth rate: 1 nodes/iteration

*** WARNING - Failed to retrieve stats (1/5):
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/balancers/sge/__init__.py", line 515, in get_stats
    self.stat = self._get_stats()
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/balancers/sge/__init__.py", line 487, in _get_stats
    now = self.get_remote_time()
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/balancers/sge/__init__.py", line 466, in get_remote_time
    return datetime.datetime.strptime(str, "%a %b %d %H:%M:%S UTC %Y")
  File "/usr/lib/python2.7/_strptime.py", line 325, in _strptime
    (data_string, format))
ValueError: time data 'Tue Apr 30 07:01:35 PDT 2013' does not match format '%a %b %d %H:%M:%S UTC %Y'
*** WARNING - Retrying in 60s
^CTraceback (most recent call last):
  File "/usr/local/bin/starcluster", line 9, in <module>
    load_entry_point('StarCluster==0.9999', 'console_scripts', 'starcluster')()
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/cli.py", line 313, in main
    StarClusterCLI().main()
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/cli.py", line 257, in main
    sc.execute(args)
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/commands/loadbalance.py", line 90, in execute
    lb.run(cluster)
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/balancers/sge/__init__.py", line 576, in run
    self.get_stats()
  File "<string>", line 2, in get_stats
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/utils.py", line 92, in wrap_f
    res = func(*arg, **kargs)
  File "/usr/local/lib/python2.7/dist-packages/StarCluster-0.9999-py2.7.egg/starcluster/balancers/sge/__init__.py", line 521, in get_stats
    time.sleep(self.polling_interval)

Any ideas?

All Best,

Sergio

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