<div dir="ltr">Sounds good, Matthew. Let me know how that works for you. I filed a ticket with osdc support about the SSH issue, so hopefully they can offer some help there. <div><br></div><div>I added an entry to our site guide documentation about how to run on OSDC in cluster mode. It is at <a href="http://swiftlang.org/guides/release-0.94/siteguide/siteguide.html#_open_science_data_grid">http://swiftlang.org/guides/release-0.94/siteguide/siteguide.html#_open_science_data_grid</a>. The only potential issue is, it seems to only work with the standard Ubuntu images. </div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Feb 17, 2014 at 3:34 PM, Matthew Shaxted <span dir="ltr"><<a href="mailto:Matthew.Shaxted@som.com" target="_blank">Matthew.Shaxted@som.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hi David,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Indeed I am running start-coaster-service from the head node.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">The first recommendation is a good one, I will try this out and let you know how it works.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I am also very interested in the cluster launch/PBS scheduler approach, although I have never used it before. An example OSDC/PBS config would be really helpful.<u></u><u></u></span></p>
<div class=""><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Matthew<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><div><p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Microsoft Sans Serif","sans-serif";color:red;text-transform:uppercase">MATTHEW SHAXTED</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d;text-transform:uppercase"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <u></u><u></u></span></p><p class="MsoNormal"><span style="text-transform:uppercase;font-size:7.5pt;font-family:"Microsoft Sans Serif","sans-serif"">SKIDMORE, OWINGS & MERRILL LLP </span><span style="font-size:7.5pt;font-family:"Microsoft Sans Serif","sans-serif";color:#1f497d;text-transform:uppercase"> </span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d;text-transform:uppercase"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Microsoft Sans Serif","sans-serif";color:#736f6e;text-transform:uppercase">224 South Michigan Ave.</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#736f6e;text-transform:uppercase"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Microsoft Sans Serif","sans-serif";color:#736f6e;text-transform:uppercase">Chicago, IL 60604</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#736f6e;text-transform:uppercase"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Microsoft Sans Serif","sans-serif";color:#736f6e;text-transform:uppercase">TEL: <a href="tel:312.360.4368" value="+13123604368" target="_blank">312.360.4368</a></span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d;text-transform:uppercase"><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><a href="http://www.som.com/" target="_blank"><span style="font-size:7.5pt">WWW.SOM.COM</span></a></span><span style="font-size:5.5pt;font-family:"Calibri","sans-serif";color:#1f497d"> <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><span style="font-family:"Calibri","sans-serif";color:#1f497d"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Microsoft Sans Serif","sans-serif";color:#1f497d">The information contained in this communication may be confidential, is intended only for the use of the recipient(s) named above, and may be legally privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication, or any of its contents, is strictly prohibited and may be unlawful. If you have received this communication in error, please return it to the sender immediately and delete the original message and any copy of it from your computer system. If you have any questions concerning this message, please contact the sender.</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><img border="0" width="392" height="17" src="cid:image002.png@01CF2BF5.125EFA70" alt="cid:image93798a.gif@f078f826.ddd94773"><u></u><u></u></span></p>
</div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p></div><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Wilde, Michael J. [mailto:<a href="mailto:wilde@anl.gov" target="_blank">wilde@anl.gov</a>] <br>
<b>Sent:</b> Monday, February 17, 2014 2:36 PM<br><b>To:</b> David Kelly; Matthew Shaxted<br><b>Cc:</b> <a href="mailto:swift-user@ci.uchicago.edu" target="_blank">swift-user@ci.uchicago.edu</a><br><b>Subject:</b> RE: [Swift-user] Coaster Service Startup Time on OSDC<u></u><u></u></span></p>
</div></div><div><div class="h5"><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Good find, David. Did you file a ticket on the slowness with OSDC Support?<br>
<br>When you run ssh -vvv, does the timing of log output suggest where the problem is?<br><br>Can you run into some tool like typescript, or a "screen" log, that will timestamp the records, and send those to OSDC Support?<u></u><u></u></span></p>
<div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><u></u> <u></u></span></p><div><div><div><div><div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">- Mike <u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">--<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Michael Wilde<u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Mathematics and Computer Science Computation Institute<u></u><u></u></span></p></div><div><p class="MsoNormal">
<span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Argonne National Laboratory The University of Chicago<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""><u></u> <u></u></span></p>
</div></div></div></div></div></div></div><div><div class="MsoNormal" align="center" style="text-align:center"><span style><hr size="2" width="100%" align="center"></span></div><div><p class="MsoNormal" style="margin-bottom:12.0pt">
<b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> <a href="mailto:swift-user-bounces@ci.uchicago.edu" target="_blank">swift-user-bounces@ci.uchicago.edu</a> [<a href="mailto:swift-user-bounces@ci.uchicago.edu" target="_blank">swift-user-bounces@ci.uchicago.edu</a>] on behalf of David Kelly [<a href="mailto:davidkelly@uchicago.edu" target="_blank">davidkelly@uchicago.edu</a>]<br>
<b>Sent:</b> Monday, February 17, 2014 2:14 PM<br><b>To:</b> Matthew Shaxted<br><b>Cc:</b> <a href="mailto:swift-user@ci.uchicago.edu" target="_blank">swift-user@ci.uchicago.edu</a><br><b>Subject:</b> Re: [Swift-user] Coaster Service Startup Time on OSDC</span><span style><u></u><u></u></span></p>
</div><div><div><p class="MsoNormal"><span style>Hi Matthew, <u></u><u></u></span></p><div><p class="MsoNormal"><span style><u></u> <u></u></span></p></div><div><p class="MsoNormal"><span style>I set up a test on OSDC with 10 nodes. I did notice something strange there. When I try to SSH from the Sullivan head node to one of my CentOS instances, it takes much longer than it should:<u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style><u></u> <u></u></span></p></div><p class="MsoNormal"><span style>dkelly@kg14-compute-1:~$ time ssh <a href="mailto:root@172.16.1.236" target="_blank">root@172.16.1.236</a> ls<br>
Warning: Permanently added '172.16.1.236' (RSA) to the list of known hosts.<br>anaconda-ks.cfg<br>install.log<br>install.log.syslog <u></u><u></u></span></p><div><p class="MsoNormal"><span style><br>real 0m25.197s<u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style><u></u> <u></u></span></p></div><div><p class="MsoNormal"><span style>Are you running start-coaster-service from the Sullivan head node? For each node in your node list, there are three SSH commands (one to create a directory structure, one to scp the <a href="http://worker.pl/" target="_blank">worker.pl</a> script there, and one to launch <a href="http://worker.pl/" target="_blank">worker.pl</a>). This is done serially in the 0.94 branch. I can see how this would take very long. I will make some changes to speed up start-coaster-service, but in the meantime, here are a few suggestions:<u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style><u></u> <u></u></span></p></div><div><p class="MsoNormal"><span style>1. The SSH slowness seems to only be from the Sullivan head node to the VMs. SSH connections from one VM to another VM is pretty quick. Are you able to run Swift and start-coaster-service on a VM?<u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style><u></u> <u></u></span></p></div><div><p class="MsoNormal"><span style>2. Is a persistent coasters setup needed here? OSDC has an option to launch instances as a cluster, which makes available a PBS scheduler. You could set this up and avoid the need to start and manage workers yourself. <u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style><u></u> <u></u></span></p></div><div><p class="MsoNormal"><span style>Let me know what you think. I have some example OSDC/PBS configs if you decide to go that route.<u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style><u></u> <u></u></span></p></div><div><p class="MsoNormal"><span style>Thanks,<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style>David<u></u><u></u></span></p></div>
</div><div><p class="MsoNormal" style="margin-bottom:12.0pt"><span style><u></u> <u></u></span></p><div><p class="MsoNormal"><span style>On Thu, Feb 13, 2014 at 1:04 PM, Matthew Shaxted <<a href="mailto:Matthew.Shaxted@som.com" target="_blank">Matthew.Shaxted@som.com</a>> wrote:<u></u><u></u></span></p>
<div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Sure thing David,</span><span style><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><span style><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I have a setup.sh script that exports WORKER_HOSTS IP addresses from a txt file (see attached) – all nodes are running centOS. </span><span style><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><span style><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">The conf file I am using is also attached. I’m using swift-0.94.1.</span><span style><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><span style><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Many thanks,</span><span style><u></u><u></u></span></p>
<div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Matthew</span><span style><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><span style><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><span style><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Microsoft Sans Serif","sans-serif";color:red;text-transform:uppercase">MATTHEW SHAXTED</span><span style><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Microsoft Sans Serif","sans-serif";color:#736f6e;text-transform:uppercase">Chicago, IL 60604</span><span style><u></u><u></u></span></p><p class="MsoNormal">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><a href="http://www.som.com/" target="_blank"><span style="font-size:7.5pt">WWW.SOM.COM</span></a></span><span style="font-size:5.5pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><span style><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><span style><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Microsoft Sans Serif","sans-serif";color:#1f497d">The information contained in this communication may be confidential, is intended only for the use of the recipient(s) named above, and may be legally privileged. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication, or any of its contents, is strictly prohibited and may be unlawful. If you have received this communication in error, please return it to the sender immediately and delete the original message and any copy of it from your computer system. If you have any questions concerning this message, please contact the sender.</span><span style><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><span style><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><img border="0" width="392" height="17" src="cid:image002.png@01CF2BF5.125EFA70" alt="cid:image93798a.gif@f078f826.ddd94773"></span><span style><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><span style><u></u><u></u></span></p></div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> David Kelly [mailto:<a href="mailto:davidkelly@uchicago.edu" target="_blank">davidkelly@uchicago.edu</a>] <br>
<b>Sent:</b> Thursday, February 13, 2014 12:53 PM<br><b>To:</b> Matthew Shaxted<br><b>Cc:</b> <a href="mailto:swift-user@ci.uchicago.edu" target="_blank">swift-user@ci.uchicago.edu</a><br><b>Subject:</b> Re: [Swift-user] Coaster Service Startup Time on OSDC</span><span style><u></u><u></u></span></p>
</div><div><div><p class="MsoNormal"><span style> <u></u><u></u></span></p><div><p class="MsoNormal"><span style>Hi Matthew,<u></u><u></u></span></p><div><p class="MsoNormal"><span style> <u></u><u></u></span></p></div><div>
<p class="MsoNormal"><span style>Could you please explain a little more about how you're starting the coaster-service and workers? Are you using the start-coaster-service script? If you are, could you please send the coaster-service.conf file you're using? Which version of Swift is this? <u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style>There may be some things we can do to speed up the process - just need to get a better understanding of how things are set up and where the delays are coming from. Thanks!<u></u><u></u></span></p>
</div><div><p class="MsoNormal"><span style> <u></u><u></u></span></p></div><div><p class="MsoNormal"><span style>Regards,<u></u><u></u></span></p></div><div><p class="MsoNormal"><span style>David<u></u><u></u></span></p>
</div></div><div><p class="MsoNormal" style="margin-bottom:12.0pt"><span style> <u></u><u></u></span></p><div><p class="MsoNormal"><span style>On Thu, Feb 13, 2014 at 12:23 PM, Matthew Shaxted <<a href="mailto:Matthew.Shaxted@som.com" target="_blank">Matthew.Shaxted@som.com</a>> wrote:<u></u><u></u></span></p>
<div><div><p class="MsoNormal"><span style>Dear Swift User Group:<u></u><u></u></span></p><p class="MsoNormal"><span style> <u></u><u></u></span></p><p class="MsoNormal"><span style>I working with a 60-node cluster running on OSDC now, and when I try to start the Swift coaster-service for these nodes, it takes about 30 seconds (or more) per node to successfully start. <u></u><u></u></span></p>
<p class="MsoNormal"><span style> <u></u><u></u></span></p><p class="MsoNormal"><span style>This is an issue for me as it limits how often I want to shut down the coaster-service - for this 60 node cluster it could take up to 30 min to start up again.<u></u><u></u></span></p>
<p class="MsoNormal"><span style> <u></u><u></u></span></p><p class="MsoNormal"><span style>Is this starting coaster behavior normal? Is there anything I can do to make the coaster-service start faster?<u></u><u></u></span></p>
<p class="MsoNormal"><span style> <u></u><u></u></span></p><p class="MsoNormal"><span style>Thanks,<br>Matthew<u></u><u></u></span></p><p class="MsoNormal"><span style> <u></u><u></u></span></p><p class="MsoNormal"><span style> <u></u><u></u></span></p>
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