http://permalink.gmane.org/gmane.comp.lang.jruby.user hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://permalink.gmane.org/gmane.comp.lang.jruby.user/16478 <pre>If you have environment variables set for GEM_HOME, etc, JRuby will honor them and probably not install in JRuby's location. I don't know what your `rake install` target actually does, but my first guess would be that there's some environment oddity. - Charlie On Fri, May 25, 2012 at 4:08 PM, Random Programmer &lt;random.programmer.80&lt; at &gt;gmail.com&gt; wrote: --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email </pre> Charles Oliver Nutter 2012-05-25T21:17:08 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16477 <pre>I have jruby installed at `/home/david/apps/jruby` and is not set in .bash_profile. I do have ruby set at `/home/david/apps/ruby/bin` in .bash_profile. I created a hello world gem. /home/david/apps/jruby/bin/jruby -S rake install test 0.0.1 built to pkg/test-0.0.1.gem test (0.0.1) installed then /home/david/apps/jruby/bin/jruby -S gem list --local *** LOCAL GEMS *** bundler (1.0.22) diff-lcs (1.1.3) em-proxy (0.1.6) eventmachine (0.12.10 java) http_parser (0.1.3) json (1.5.0 java) json-jruby (1.5.0 java) macaddr (1.6.0) nokogiri (1.5.0 java) rake (0.9.2.2) rspec (2.8.0) rspec-core (2.8.0) rspec-expectations (2.8.0) rspec-mocks (2.8.0) sources (0.0.1) systemu (2.2.0) uuid (2.3.5) Not there but it does show up with david&lt; at &gt;linux-8h1y:~/projects/greyfox/test&gt; ruby -S gem list --local *** LOCAL GEMS *** ... test (0.0.1) ... What am I missing? It is driving me nuts. Please do not recommend RVM, I have</pre> Random Programmer 2012-05-25T21:08:14 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16476 <pre> Here is a small writeup with some nicer data: http://polycrystal.org/2012/05/24/activerecord_connection_pool_fairness.html </pre> Patrick Mahoney 2012-05-25T14:32:29 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16475 <pre> We are calling ActiveRecord::Base.clear_active_connections! after each request. Rails should do this automatically. See http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/ConnectionPool.html In a Java servlet container such as Tomcat, Glassfish, Jetty, etc., there is typically a thread pool of long-lived threads servicing HTTP requests, even if each request is short. These are not short-lived threads performing misc. background tasks; these are the equivalent of, for example, multiple Unicorn worker processes, except in JRuby they can be threads. In my particular case, I'm running several JRuby apps in the same servlet container and sharing the same thread pool. Each app has its own database and connection pool however. </pre> Patrick Mahoney 2012-05-24T14:15:52 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16474 <pre>Hi Roger! Just tried jruby -J-splash:image.png -e "puts " and it worked fine. We have used this in production for 4 years now. On 2012-05-23, at 23:10, Eric Christopherson wrote: -- Uwe Kubosch uwe&lt; at &gt;kubosch.no http://kubosch.no/ --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email </pre> Uwe Kubosch 2012-05-24T08:37:25 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16473 <pre>Well, if that's not working, please open a ticket. Thanks. </pre> Hirotsugu Asari 2012-05-23T22:42:21 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16472 <pre> That's what I was thinking, but I tried it out and it doesn't work either. --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email </pre> Eric Christopherson 2012-05-23T21:10:32 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16471 <pre>Did you miss '-' between 'J' and 's'? </pre> Hirotsugu Asari 2012-05-23T19:07:28 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16470 <pre>Hello all. When I attempt to run the demos here: https://github.com/jruby/jruby/wiki/Persistence I get this: jruby test.rb JavaProxy$INVOKER$i$1$0$persistent.gen:-1:in `call': java.lang.ClassCastException: org.jruby.RubyClass cannot be cast to org.jruby.java.proxies.JavaProxy from CachingCallSite.java:312:in `cacheAndCall' from CachingCallSite.java:169:in `call' from test.rb:9:in `__file__' from test.rb:-1:in `load' from Ruby.java:778:in `runScript' from Ruby.java:771:in `runScript' from Ruby.java:648:in `runNormally' from Ruby.java:497:in `runFromMain' from Main.java:375:in `doRunFromMain' from Main.java:264:in `internalRun' from Main.java:230:in `run' from Main.java:214:in `run' from Main.java:194:in `main' (hard exit) is this expected? jruby 1.7.0.preview1 (ruby-1.9.3-p203) (2012-05-17 c550df6) (Java HotSpot(TM) Client VM 1.6.0_32) [Windows 7-x86-java] </pre> Roger Pack 2012-05-23T16:22:27 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16469 <pre>yes I think it may have been a default directory thing because when I took the same code to a different (OS and machine), it seemed to start working. Weird. </pre> Roger Pack 2012-05-23T16:15:36 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16468 <pre>I noticed if I run this code, with trunk: require 'java' class JFrameDescendant &lt; javax.swing.JFrame def initialize &lt; at &gt;panel = 3 end end JFrameDescendant.new It results in this message: repro.rb:1 warning: instance vars on non-persistent Java type JFrameDescendant (http://wiki.jruby.org/Persistence) However, since I'm actually subclassing a java class with a pure ruby one, shouldn't I be save to save instance variables? Is this warning message expected? -roger- </pre> Roger Pack 2012-05-23T16:15:04 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16467 <pre>Hello all. Noticed today that with yesterday's build, I get this "scary" message: $ jruby -ve "require 'java'" jruby 1.7.0.preview1 (ruby-1.9.3-p203) (2012-05-17 c550df6) (Java HotSpot(TM) Client VM 1.6.0_32) [Windows 7-x86-java] c:/dev/ruby/downloads/jruby/lib/ruby/shared/rubygems/custom_require.rb:36 warning: loading in progress, circular require considered harmful - java require at org/jruby/RubyKernel.java:991 require at c:/dev/ruby/downloads/jruby/lib/ruby/shared/rubygems/custom_require.rb:36 (root) at c:/dev/ruby/downloads/jruby/lib/ruby/shared/jruby.rb:1 require at org/jruby/RubyKernel.java:991 (root) at c:/dev/ruby/downloads/jruby/lib/ruby/shared/rubygems/custom_require.rb:1 require at c:/dev/ruby/downloads/jruby/lib/ruby/shared/rubygems/custom_require.rb:36 require at org/jruby/RubyKernel.java:991 (root) at file:/C:/dev/ruby/downloads/jruby/lib/jruby.jar!/jruby/java/java_ext/java.io.rb:1 (root) at c:/dev/ruby/downloads/jruby/lib/ruby/shared/rubygems/custom_require.rb:1 requ</pre> Roger Pack 2012-05-23T16:02:41 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16466 <pre>I see that this is possible, to have a splash screen: $ java -splash:audio.jpg -jar jruby-complete-1.6.4.jar -e "puts " however this doesn't work: $ jruby -Jsplash:audio.jpg -e 'puts' Unrecognized option: splash:audio.jpg JVM creation failed is this a bug? -roger- </pre> Roger Pack 2012-05-23T15:46:44 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16465 <pre>I had to manually remove the connections in a multithreaded Swing app. ActiveRecord::Base.clear_active_connections! Regards Roger Am 23.05.2012 um 15:55 schrieb Uwe Kubosch: --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email </pre> Roger Gilliar 2012-05-23T14:04:05 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16464 <pre> Last I looked at the AR DB connection pool, it never released connections for active threads. That means you MUST have at least as many connections in your pool as you have active threads. In a web app, the threads are often short lived, and the connections they occupy are released when the thread dies. This is not the case for long-lived threads in a non-web app. -- Uwe Kubosch http://jruby.org/ --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email </pre> Uwe Kubosch 2012-05-23T13:55:20 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16463 <pre>I've been trying to run a few non-Rails ActiveRecord apps in a Java servlet container in full multithreaded mode. I kept running into problems under moderate load, and I believe I've tracked down the causes. I want to post this for posterity and ask if other JRuby users have seen these same problems. I am also seeking testing and comments on my patches, if possible. 1) ActiveRecord has thread safety issues. I see this error in my logs "Detected invalid hash contents due to unsynchronized modifications with concurrent users org/jruby/RubyHash.java:1356:in `keys'" Fix accepted: https://github.com/rails/rails/pull/6398/files 2) ActiveRecord's connection pool is not "fair". My thread pool is larger than my database connection pool, and I regularly see timeouts acquiring database connections under only moderate load (where direct JDBC calls for a container-managed connection pool see no such timeouts). Fix also accepted (though it somehow breaks tests of eager loading on postgres), but this is more </pre> Patrick Mahoney 2012-05-22T16:49:05 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16462 <pre>Thank you everyone for all your responses! And so complete. Much appreciated. It gives me a very good starting point :) Cheers Chris On 21 May 2012 22:32, Jonathan Coveney &lt;jcoveney&lt; at &gt;gmail.com&gt; wrote: </pre> Chris Burrell 2012-05-21T21:37:19 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16461 <pre>I cannot speak to moving from Ruby to JRuby... I think the issue can be gem support, but it's getting better. I can talk about interop between Java/JRuby, however. I embedded JRuby in Apache PIg so that users could define UDF's (think of this like a user defined COUNT or SUM in the database world) using JRuby. I found the tools to be more than adequate, though the documentation is thin, and there are definitely some gotchas (and you will undoubtedly have to make your own conversion functions). Still, I think that the power of Ruby is worth it... a little pain on the internals is worth the expressivity of Ruby :) 2012/5/17 Marko Asplund &lt;marko.asplund&lt; at &gt;ixonos.com&gt; </pre> Jonathan Coveney 2012-05-21T21:32:57 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16460 <pre>The JRuby community is pleased to announce the release of JRuby 1.7.0.preview1. - Homepage: http://www.jruby.org/ - Download: http://www.jruby.org/download This is the first preview release of JRuby 1.7. This release represents a tremendous amount of work by dozens of contributors, and there are improvements in every subsystem. Users on Java 7 should start to see gains from invokedynamic, the JVM’s new support for dynamic languages. Users of highly-concurrent applications will see improvements in throughput and raw parallelism. And we have upped our compatibility level to match Ruby 1.9.3. We have opted for a preview cycle this time due to the significance of changes in this release and our desire to give users more time to test JRuby before releasing 1.7 final. When in doubt, file a bug...we’ll sort it out. We want to know issues users have with JRuby 1.7 sooner rather than later. ### Notable Changes: - 1\.9\.3 is now our default runtime mode (--1.8 is needed for 1.8.7 support) - Many 1.9.x compati</pre> Thomas E Enebo 2012-05-21T19:55:31 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16459 <pre>Darshan Karandikar wrote in post #1055606: http://www.slideshare.net/darshankarandikar/j-ruby-on-rails-rors-simplicity-meets-javas-classrubyconfindia2012-v19 Here's the video of the talk: http://confreaks.com/videos/928-rubyconfindia2012-jruby-on-rails-ror-s-simplicity-meets-java-s-class -Darshan. </pre> Darshan Karandikar 2012-05-21T05:53:16 http://permalink.gmane.org/gmane.comp.lang.jruby.user/16458 <pre>Hi Bob! Have you tried: stmt = conn.prepare_statement('select image_name, image from test_blob'); rowset = stmt.executeQuery() while (rowset.next()) puts rowset.getString(1) blob = rowset.getInputStream(2) puts blob.available # Now read your data from the input stream. end I did not try this (I'm on vacation), but that is the standard way of getting a blob with JDBC. On 2012-05-19, at 03:50, Bob Lehman wrote: -- Uwe Kubosch uwe&lt; at &gt;kubosch.no http://kubosch.no/ --------------------------------------------------------------------- To unsubscribe from this list, please visit: http://xircles.codehaus.org/manage_email </pre> Uwe Kubosch 2012-05-19T08:45:51 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.lang.jruby.user