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50 51 52 53 54</head> 55 56<body > 57 <header role="banner"><hgroup> 58 <h1><a href="/">Jeff Klukas</a></h1> 59 60</hgroup> 61 62</header> 63 <nav role="navigation"><ul class="subscription" data-subscription="rss"> 64 <li><a href="/atom.xml" rel="subscribe-rss" title="subscribe via RSS"><i class="fa fa-rss fa-lg"></i></a></li> 65 66</ul> 67 68<form action="https://www.google.com/search" method="get"> 69 <fieldset role="search"> 70 <input type="hidden" name="sitesearch" value="jeff.klukas.net"> 71 <input class="search" type="text" name="q" results="0" placeholder="Search"/> 72 </fieldset> 73</form> 74 75<ul class="main-navigation"> 76 <li><a href="/">Home</a></li> 77 <li><a href="/archives">Posts</a></li> 78 <li><a href="/bio">Bio</a></li> 79 <li><a href="/categories/writing">Writing</a></li> 80</ul> 81 82</nav> 83 <div id="main"> 84 <div id="content"> 85 <div class="blog-index"> 86 87 88 89 <article> 90 91 <header> 92 93 <h1 class="entry-title"><a href="/content/2015/04/07/safe-migrations-with-redshift/">Safe Migrations with Redshift</a></h1> 94 95 96 <p class="meta"> 97 98 99 100 101 102<time class='entry-date' datetime='2015-04-07T11:54:12-04:00'><span class='date'><span class='date-month'>Apr</span> <span class='date-day'>7</span><span class='date-suffix'>th</span>, <span class='date-year'>2015</span></span> <span class='time'>11:54 am</span></time> 103 104 </p> 105 106 </header> 107 108 109 <div class="entry-content"><p><em>This post originally appeared on the <a href="https://www.simple.com/engineering/safe-migrations-with-redshift">Simple Engineering Blog</a>.</em></p> 110 111<p>Simple has adopted <a href="https://aws.amazon.com/redshift/">Amazon Redshift</a> 112as a data warehouse. Itâs used not just by our data analysts, but by 113teams throughout the company to answer questions about 114fraud, customer behavior, and more.</p> 115 116</div> 117 118 119 <footer> 120 <a rel="full-article" href="/content/2015/04/07/safe-migrations-with-redshift/">Read on →</a> 121 </footer> 122 123 124 125 </article> 126 127 128 <article> 129 130 <header> 131 132 <h1 class="entry-title"><a href="/content/2015/03/30/band-aids/">Band-Aids</a></h1> 133 134 135 <p class="meta"> 136 137 138 139 140 141<time class='entry-date' datetime='2015-03-30T22:33:25-04:00'><span class='date'><span class='date-month'>Mar</span> <span class='date-day'>30</span><span class='date-suffix'>th</span>, <span class='date-year'>2015</span></span> <span class='time'>10:33 pm</span></time> 142 143 </p> 144 145 </header> 146 147 148 <div class="entry-content"><p>Most of the sections in this siteâs sidebar stopped functioning at some point in the past two years, and Iâm just now getting around to making updates. Security needs are ever-changing, so two years is far too long to expect a web API to remain functional. Iâm applying some Band-Aids to get things functional again, and also edited some outdated content.</p> 149 150<p>I actually have some writing momentum building right now as Iâm starting to author engineering posts for Simple. I have a first article on schema migrations in Amazon Redshift thatâs currently under review and will hopefully get published next week.</p> 151</div> 152 153 154 155 156 </article> 157 158 159 <article> 160 161 <header> 162 163 <h1 class="entry-title"><a href="/content/2014/08/27/starting-at-simple/">Starting at Simple</a></h1> 164 165 166 <p class="meta"> 167 168 169 170 171 172<time class='entry-date' datetime='2014-08-27T16:32:00-04:00'><span class='date'><span class='date-month'>Aug</span> <span class='date-day'>27</span><span class='date-suffix'>th</span>, <span class='date-year'>2014</span></span> <span class='time'>4:32 pm</span></time> 173 174 </p> 175 176 </header> 177 178 179 <div class="entry-content"><p>I started a new job this past Monday at Simple (simple.com) and Iâm getting myself situated there. They have a strong culture of open source and information sharing, so Iâm hoping that translates into me being more diligent about blogging. So far, so good.</p> 180 181<p>There are lots of animated GIFs flying around at Simple, both in email and on IRC. In that spirit, I leave with the Dude:</p> 182 183<p><img src="http://i.imgur.com/dEL6l.gif" /></p> 184</div> 185 186 187 188 189 </article> 190 191
192 <article> 193 194 <header> 195 196 <h1 class="entry-title"><a href="/content/2013/01/01/new-years-resolution-read-man-pages/">New Year’s Resolution: Read man Pages</a></h1> 197 198 199 <p class="meta"> 200 201 202 203 204 205<time class='entry-date' datetime='2013-01-01T16:00:00-05:00'><span class='date'><span class='date-month'>Jan</span> <span class='date-day'>1</span><span class='date-suffix'>st</span>, <span class='date-year'>2013</span></span> <span class='time'>4:00 pm</span></time> 206 207 </p> 208 209 </header> 210 211 212 <div class="entry-content"><p>Iâve become addicted to <a href="http://tmux.sourceforge.net/">tmux</a>, the terminal multiplexer. It lets me turn one terminal window into a multi-tabbed, multi-paned hub for all my terminal-based exploits.</p> 213 214<p>Iâve been mulling for a while if there is a way to emulate <a href="http://sourceforge.net/projects/clusterssh/">Cluster SSH</a> using tmux, being able to type a command once and have it be executed in multiple sessions on different servers. I spent a few hours today Googling for ideas on how to do such a thing, stumbling across <a href="https://gist.github.com/2773454">a gist that seemed to do something close to what I want</a>, then sinking some more effort into adapting it to my needs. The result worked, but was a bit messy.</p> 215 216<p>While trying to clean up my solution, I did some searching in the tmux man page. In order to understand what I was reading, I had to page back to review the section header and stumbled upon the <code>synchronize-panes</code> window option. It was exactly the functionality I was looking for, already baked into tmux.</p> 217 218<p>So my New Yearâs resolution is to spend less time Googling and more time reading the official documentation. Instead of waiting until I need some specific feature, Iâm going to set aside a little time every day to get a broader view on the tools I rely on to be productive.</p> 219</div> 220 221 222 223 224 </article> 225 226 227 <article> 228 229 <header> 230 231 <h1 class="entry-title"><a href="/content/2012/12/09/making-a-title-column-in-css/">Making a Title Column in CSS</a></h1> 232 233 234 <p class="meta"> 235 236 237 238 239 240<time class='entry-date' datetime='2012-12-09T14:23:00-05:00'><span class='date'><span class='date-month'>Dec</span> <span class='date-day'>9</span><span class='date-suffix'>th</span>, <span class='date-year'>2012</span></span> <span class='time'>2:23 pm</span></time> 241 242 </p> 243 244 </header> 245 246 247 <div class="entry-content"><p>So, if I <em>were</em> to actually recode my blog, Iâd need to decide on a layout thatâs actually manageable. The current design is a modification on top of the default Octopress theme which involves much CSS and Javascript wizardry beyond my comprehension.</p> 248 249<p>One possible direction is to go for vast simplification and build the styling from scratch. I styled my own CV with inspiration from <a href="http://kieranhealy.org/vita.pdf">the CV of Kieran Healy</a> and have liked the idea of pushing titles into the left column. Iâd actually like to push other content like photos into the left column as well so that itâs kind of an alternate universe for items other than body text. Hereâs the working mock-up Iâve put together for the web:</p> 250 251<iframe style="width: 100%; height: 300px" src="http://jsfiddle.net/jklukas/DvrTb/2/embedded/result,html,css" allowfullscreen="allowfullscreen" frameborder="0"></iframe> 252<p>It keeps things in sync with the text. Iâm working to keep the vertical spacing in rhythm, so that the items in the left column fall on the same line boundaries as the main text. The line height for the title is 1.5 times that for the body text, so the two lines of the title equal three lines of text. Iâm not sure Iâve got the image positioned correctly yet.</p> 253 254<p>Is this a reasonable concept to start from?</p> 255</div> 256 257 258 259 260 </article> 261 262 263 <article> 264 265 <header> 266 267 <h1 class="entry-title"><a href="/content/2012/12/01/i-fought-the-octopus-and-the-octopus-won/">I Fought the Octopus and the Octopus Won</a></h1> 268 269 270 <p class="meta"> 271 272 273 274 275 276<time class='entry-date' datetime='2012-12-01T18:36:00-05:00'><span class='date'><span class='date-month'>Dec</span> <span class='date-day'>1</span><span class='date-suffix'>st</span>, <span class='date-year'>2012</span></span> <span class='time'>6:36 pm</span></time> 277 278 </p> 279 280 </header> 281 282 283 <div class="entry-content"><p><a href="http://en.wikipedia.org/wiki/Octopus"><img class="left" alt="The octopus" src="http://upload.wikimedia.org/wikipedia/commons/thumb/5/57/Octopus2.jpg/631p
283x-Octopus2.jpg" style="width:315px; height:240px;" /></a></p> 284 285<p>My blogging frequency has been embarrassingly low, confirming my suspicion that my interest lies more in the technical aspects of setting up a site than in populating it with stunningly brilliant content. Part of the problem is that <a href="http://octopress.org">Octopress</a>, my chosen blogging framework, has turned out to be more cumbersome than originally anticipated. I was lured in by the idea that my whole blog would just be text files â no database, nothing hidden, I would be able to control and understand everything. While Iâve certainly learned a lot by using Octopress, posting new content involves having a properly setup development environment on whatever machine youâre using. By the time a month has gone by and I finally get around to thinking of something new to add to the blog, Iâve completely forgotten how things work and Iâm confronted with some new hurdle that stops me from pushing my new post to the site.</p> 286 287<p>That said, Octopress is a pretty cool concept with some beautiful results. My experience would probably be a bit smoother if I were better acquainted with Ruby syntax and culture. Tools like <code>rake</code> and <code>rvm</code> are still black boxes to me and Iâve been burned by not understanding them enough to fix problems. And I need to get a lot more familiar with <code>git</code>. Octopress has actually been a pretty fun way to get introduced to the Ruby ecosystem.</p> 288 289<p>I now understand just how nice it is to be able to post to write a blog post through a web interface, from whatever machine you happen to come across. So Iâm ready to admit it might be worth using a database. Recently, Iâve gotten fairly heavily involved in development for an internal Q&A site at Epic based on the open source Django app <a href="http://www.osqa.net">
289OSQA</a>, which has gotten me interested in trying out a Django-based blog. Writing in python puts me on home turf and itâs a good chance to get to know the process of developing an MVC app from scratch.</p> 290 291<p>If I make posting easier on myself, thereâs some chance this site will become something a bit more interesting than just another blog about putting together a blog.</p> 292</div> 293 294 295 296 297 </article> 298 299 300 <article> 301 302 <header> 303 304 <h1 class="entry-title"><a href="/content/2012/06/01/employment-gap/">Gap Time</a></h1> 305 306 307 <p class="meta"> 308 309 310 311 312 313<time class='entry-date' datetime='2012-06-01T15:28:00-04:00'><span class='date'><span class='date-month'>Jun</span> <span class='date-day'>1</span><span class='date-suffix'>st</span>, <span class='date-year'>2012</span></span> <span class='time'>3:28 pm</span></time> 314 315 </p> 316 317 </header> 318 319 320 <div class="entry-content"><p>Starting a new job with <a href="http://epic.com">Epic</a> on Monday, working with their Server Systems team to provide configuration, deployment, and monitoring of high-performance databases for large healthcare systems. The past few weeks have given me some rare downtime, though, to throw effort at a few projects that had been on my mind. A few of the things Iâve accomplished during my gap time:</p> 321 322<ul> 323 <li>Made $300 in one morning by doing some hacking in response to <a href="https://twitter.com/planetpython/status/203147081005805569">a tweet</a>.</li> 324 <li>Rebuilt <a href="http://ac-aa.org">ac-aa.org</a> in Wordpress so that minor changes can be handled directly by members of the ACAA community rather than having to go through me.</li> 325 <li>Learned the basics of MVC web apps and Ruby on Rails, inspired by the prodding of some of the good folks at <a href="http://bendyworks.com">Bendyworks</a>.</li> 326 <li>Attended some Madison-area software meetups to get better acquainted with the local tech ecosystem.</li> 327 <li>Cleaned up the source code for my thesis and published a LaTeX style configuration on Github that I hope other UW dissertators will use to make their lives easier.</li> 328 <li>Updated the look of this site to be more stable and to better accomodate those nifty high-res displays. Iâm using <a href="http://fortawesome.github.com/Font-Awesome/">FontAwesome</a> for icons in the sidebar and updated some images for double resolution.</li> 329</ul> 330</div> 331 332 333 334 335 </article> 336 337 338 <article> 339 340 <header> 341 342 <h1 class="entry-title"><a href="/content/2012/05/07/phd-thesis/">A Search for Exotic Particles</a></h1> 343 344 345 <p class="meta"> 346 347 348 349 350 351<time class='entry-date' datetime='2012-05-07T11:11:00-04:00'><span class='date'><span class='date-month'>May</span> <span class='date-day'>7</span><span class='date-suffix'>th</span>, <span class='date-year'>2012</span></span> <span class='time'>11:11 am</span></time> 352 353 </p> 354 355 </header> 356 357 358 <div class="entry-content"><p>My Ph.D. dissertation, performed at the University of Wisconsin-Madison.</p> 359 360<p>Abstract: A search for exotic particles decaying via <em>WZ</em> to final states with electrons and muons is performed using a data sample of <em>pp</em> collisions collected at 7 TeV center-of-mass energy by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.98 inverse femtobarns. A cross section measurement for the production of <em>WZ</em> is also performed on a subset of the collision data. No significant excess is observed over the Standard Model background, so lower bounds at the 95% confidence level are set on the production cross sections of hypothetical particles decaying to <em>WZ</em> in several theoretical scenarios. Assuming the Sequential Standard Model, <em>Wâ</em> bosons with masses below 1143 GeV are excluded. New limits are also set for several configurations of Low-Scale Technicolor.</p> 361 362<p>I have put the <a href="https://github.com/jklukas/gradthesis">LaTeX source on GitHub</a>, along with a <a href="https://github.com/jklukas/uwthesis">style file</a> that should be reuasable for others preparing a UW-Madison dissertation. I hope others find it helpful as a jumping-off point.</p> 363 364<p>The official version is available as a <a href="https://cdsweb.cern.ch/record/1446308">record on the CERN Document Server</a>. I also produced a <a href="/files/klukas-thesis-twocol.pdf">single-spaced two-column version</a> suitable for printing and a <a href="/files/klukas-thesis-trade.pdf">trade size</a> for ordering a few bound copies on <a href="http://lulu.com">lulu.com</a>.</p> 365</div> 366 367 368 369 370 </article> 371 372
373 <article> 374 375 <header> 376 377 <h1 class="entry-title"><a href="/content/2012/03/19/rootplot/">RootPlot</a></h1> 378 379 380 <p class="meta"> 381 382 383 384 385 386<time class='entry-date' datetime='2012-03-19T10:07:00-04:00'><span class='date'><span class='date-month'>Mar</span> <span class='date-day'>19</span><span class='date-suffix'>th</span>, <span class='date-year'>2012</span></span> <span class='time'>10:07 am</span></time> 387 388 </p> 389 390 </header> 391 392 393 <div class="entry-content"><p><a href="http://packages.python.org/rootplot"><img class="right" style="border: 0; background: none;" src="http://packages.python.org/rootplot/_static/rootplot-logo.png" /></a></p> 394 395<p>ROOT is a powerful data analysis tool within the particle physics community, and the primary lens through which we see our data. The framework includes quite a bit of graphical capability, but this has understandably not been the first priority in designing its capabilities or its interface. By exploiting the pyROOT interface to the Python interpreter, I created the <a href="http://packages.python.org/rootplot">RootPlot package</a> to provide scripts and libraries to make working with the graphical side of ROOT easier.</p> 396 397<p>Of particular note, it easily allows the user to output images through matplotlib, a more full-featured plotting package, to achieve results more attractive than possible with ROOT alone.</p> 398</div> 399 400 401 402 403 </article> 404 405 406 <article> 407 408 <header> 409 410 <h1 class="entry-title"><a href="/content/2012/03/19/ac-aa-dot-org/">ac-aa.org</a></h1> 411 412 413 <p class="meta"> 414 415 416 417 418 419<time class='entry-date' datetime='2012-03-19T10:07:00-04:00'><span class='date'><span class='date-month'>Mar</span> <span class='date-day'>19</span><span class='date-suffix'>th</span>, <span class='date-year'>2012</span></span> <span class='time'>10:07 am</span></time> 420 421 </p> 422 423 </header> 424 425 426 <div class="entry-content"><div class="imgcontainer"> 427<a href="http://ac-aa.org"><img src="/images/acaasnapshot768x1024.png" style="width:384px; height:512px;" alt="Snapshot of ac-aa.org" /></a> 428<p>Snapshot of ac-aa.org</p> 429</div> 430 431<p>I maintain the web prescence of <a href="http://ac-aa.org">Agricultural Communities for Adults with Autism</a>, a consortium of organizations focused on sharing best practices for holistic, agricultural based employment and housing modles for adults with autism.</p> 432</div> 433 434 435 436 437 </article> 438 439 <div class="pagination"> 440 441 <a class="prev" href="/posts/2">← Older</a> 442 443 <a href="/blog/archives">Blog Archives</a> 444 445 </div> 446</div> 447<aside class="sidebar"> 448 449 <section> 450 <h1>About Me</h1> 451 <div id="twitter-profile" style="margin-top:0.5em;"> 452 <img class="right" src="/images/jeff184.jpg" style="width:80px; height:80px;"> 453 </div> 454 <p>Teacher, physicist, computer jockey, dad. Helped find the Higgs particle. Now building data systems <a href="https://twitter.com/simple">@simple</a>.</p> 455</section> 456<section> 457 <h1>Contact</h1> 458 <ul> 459 <li><i class="fa fa-envelope-square"></i> <a href='mailto:%6Aef%66%40k%6Cu%6Bas.n%65t'>jeff@klukas.net</a> (email)</li> 460 <li><i class="fa fa-skype"></i> <a href="skype:jeffklukas?call">jeffklukas</a> (Skype)</li> 461 <li><i class="fa fa-facebook-square"></i> <a href="http://www.facebook.com/jklukas">jklukas</a> (Facebook)</li> 462 <li><i class="fa fa-linkedin-square"></i> <a href="http://www.linkedin.com/profile/view?id=175583870">jklukas</a> (LinkedIn)</li> 463 <li><i class="fa fa-github-square"></i> <a href="https://github.com/jklukas">jklukas</a> (GitHub)</li> 464 <li><i class="fa fa-twitter-square"></i> <a href="https://twitter.com/JeffKlukas">@JeffKlukas</a> (Twitter)</li> 465 <li><i class="fa fa-google-plus-square"></i> <a href="https://plus.google.com/113614530826956763926?rel=author">jeff.klukas</a> (Google)</li> 466 </ul> 467</section> 468 469<section> 470 <h1>Latest Tweets</h1> 471 <ul id="tweets"> 472 <a class="twitter-timeline" data-dnt="true" href="https://twitter.com/jeffklukas" data-widget-id="580918737932419072">Tweets by @jeffklukas</a> 473
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473 474 </ul> 475 476 <p>Follow <a href="http://twitter.com/jeffklukas">@jeffklukas</a></p> 477 478</section> 479 480 481<section> 482 <h1>GitHub Repos</h1> 483 <ul id="gh_repos"> 484 <li class="loading">Status updating…</li> 485 </ul> 486 487 <a href="https://github.com/jklukas">@jklukas</a> on GitHub 488 489
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