Posted online here: http://developer.marklogic.com/blog/community-bloggers/2012-07
Once again, there's been a fair amount of blogging activity among MarkLogic developers since the last update<http://developer.marklogic.com/blog/community-bloggers/2012-05>. Alex Milowski provides more updates on his "Big Weather Data" saga (see previous installments here<http://www.milowski.com/journal/entry/2012-04-10T15:31:30.541-07:00/>, here<http://www.milowski.com/journal/entry/2012-04-11T11:08:29.62-07:00/>, and here<http://www.milowski.com/journal/entry/2012-04-13T15:49:24.758-07:00/>), digging into the nitty-gritty nuances of configuring limited hardware resources for scale and performance. Parts read like a suspense novel (I'm not kidding!). My favorite quote (which also made the rounds on Twitter<https://twitter.com/ndw/status/225022857762177026>) was the conclusion (SPOILER ALERT): "Right now, I'm just a happy MarkLogic camper." * Disk space is important!<http://www.milowski.com/journal/entry/2012-06-22T12:40:27.494-07:00/> * Too Much Data and Too Little Memory<http://www.milowski.com/journal/entry/2012-06-29T12:26:20.418-07:00/> * Experiments with Big Weather Data in MarkLogic - Right-sizing and Indexing<http://www.milowski.com/journal/entry/2012-07-16T17:29:02.96Z/> Dave Erickson shows how to use the Kettle Spoon<http://kettle.pentaho.com/> tool to quickly set up a repeatable ETL job that moves data out of PostGreSQL and into MarkLogic: * Kettles, Spoons, Kitchens, and Jobs<http://www.front2backdev.com/2012/05/18/kettles-spoons-kitchens-and-jobs/> For system administrators, we've got a recipe for cleaning up log files: * Bash: example using grep and sed to process a MarkLogic ErrorLog.txt file<http://blog.msbbc.co.uk/2012/06/bash-example-using-grep-and-sed-to.html> (Alex Bleasdale) And a quick-start tutorial for Opsview<http://www.opsview.com/> users on how to monitor MarkLogic using the MarkLogic Plugin for Nagios<http://developer.marklogic.com/products/nagios>: * Monitoring MarkLogic<http://leanjavaengineering.wordpress.com/2012/06/06/opsview-marklogic/> (Robin Bramley) As well as a tutorial on how to configure rsyslog<http://www.rsyslog.com/> to monitor MarkLogic on Linux so that you can automatically be notified by email of important MarkLogic system events: * rsyslog and MarkLogic<http://blakeley.com/blogofile/2012/05/17/rsyslog-and-marklogic> (Michael Blakeley) Jake Trent looks at different approaches to dynamic sorting in FLWOR expressions: * XQuery Dynamic Order By<http://rockycode.com/blog/xquery-dynamic-order/> Dave Cassel shows how you can enable wildcards in dates in search queries, so a user could search, for example, any day this month by typing "date:2012-07-??": * Wildcards in MarkLogic date queries<http://blog.davidcassel.net/2012/06/wildcards-in-marklogic-date-queries/> Cassel also explores the "directory creation" setting, and circumstances under which you want to disable the default "automatic" setting (hint: almost always, which by the way is the reason the default value is changing in the next release). Be sure also to see Michael Blakeley's earlier Directory Assistance<http://blakeley.com/blogofile/2012/03/19/directory-assistance/> article. * Directory Creation setting<http://feedproxy.google.com/~r/DavidCassel/~3/dOs71-ZfpZ4/> (Dave Cassel) Here Cassel explains how MarkLogic calculates search results relevance (tf/idf) and how you can tweak the scoring algorithm on a per-database basis: * Controlling Search Scores<http://feedproxy.google.com/~r/DavidCassel/~3/VBRjRQAe8eM/> Relatedly, Ryan Dew explores how the "synonym" option in word queries impacts the order of search results: * New cts:word-query option synonym in MarkLogic<http://feedproxy.google.com/~r/blogspot/tDYaS/~3/yEbrQG8PXSg/new-ctsword-query-option-synonym-in.html> Dew also provides an update on his in-memory update library for XQuery: * XQuery Update Facility Capability in MarkLogic<http://feedproxy.google.com/~r/blogspot/tDYaS/~3/0S6I5yKWvgU/xquery-update-facility-capability-in.html> There's always room for esoterica among MarkLogic die-hards. Dew experiments with "unordered" expressions, and Cassel digs into a URL rewriting conundrum: * Finding Order With The Unordered Expression In MarkLogic<http://feedproxy.google.com/~r/blogspot/tDYaS/~3/sWCgXy0842U/finding-order-with-unordered-block-in.html> (Ryan Dew) * Redirecting responses from the rewriter in MarkLogic<http://feedproxy.google.com/~r/DavidCassel/~3/TmY3pBhjMNc/> (Dave Cassel) On the languages front, Kurt Cagle imagines what it would be like to compile CoffeeScript into XQuery: * Putting CoffeeScript into XQuery Databases<http://xmltoday.org/content/putting-coffeescript-xquery-databases> That's all for this installment. If you know of any MarkLogic bloggers I've missed or if you're going to start blogging yourself, please let me know<http://twitter.com/evanlenz>. See you next time! Evan Lenz Software Developer, Community MarkLogic Corporation community.marklogic.com<http://community.marklogic.com/>
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