Thanks for your help Samarth, unfortunately I’ve still got the same error after these steps, to give the full error:
NameError: cannot link Java class org.apache.phoenix.jdbc.PhoenixDriver,
probable missing dependency: Could not initialize class
org.apache.phoenix.jdbc.PhoenixDriver
for_name at
org/jruby/javasupport/JavaClass.java:1286
get_proxy_class at
org/jruby/javasupport/JavaUtilities.java:34
java_import at
file:/usr/local/rvm/rubies/jruby-1.7.19/lib/jruby.jar!/jruby/java/core_ext/object.rb:27
map at org/jruby/RubyArray.java:2412
java_import at
file:/usr/local/rvm/rubies/jruby-1.7.19/lib/jruby.jar!/jruby/java/core_ext/object.rb:22
load at org/jruby/RubyKernel.java:1087
(root) at
/usr/local/rvm/gems/jruby-1.7.19/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:1
load_dependency at
/usr/local/rvm/gems/jruby-1.7.19/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:240
load at
/usr/local/rvm/gems/jruby-1.7.19/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:268
load at
/usr/local/rvm/gems/jruby-1.7.19/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:268
load_config_initializer at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/engine.rb:652
instrument at
/usr/local/rvm/gems/jruby-1.7.19/gems/activesupport-4.2.4/lib/active_support/notifications.rb:166
load_config_initializer at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/engine.rb:651
each at org/jruby/RubyArray.java:1613
Engine at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/engine.rb:616
instance_exec at org/jruby/RubyBasicObject.java:1562
run at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/initializable.rb:30
Engine at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/engine.rb:615
run_initializers at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/initializable.rb:55
tsort_each at
/usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/tsort.rb:150
each_strongly_connected_component_from at
/usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/tsort.rb:210
each_strongly_connected_component_from at
/usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/tsort.rb:219
each_strongly_connected_component_from at
/usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/tsort.rb:208
each at org/jruby/RubyArray.java:1613
tsort_each_child at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/initializable.rb:44
each_strongly_connected_component_from at
/usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/tsort.rb:203
each_strongly_connected_component at
/usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/tsort.rb:183
each at org/jruby/RubyArray.java:1613
each_strongly_connected_component at
/usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/tsort.rb:182
each_strongly_connected_component at
/usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/tsort.rb:180
tsort_each at
/usr/local/rvm/rubies/jruby-1.7.19/lib/ruby/1.9/tsort.rb:148
run_initializers at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/initializable.rb:54
initialize! at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/application.rb:352
require at org/jruby/RubyKernel.java:1071
require at
/usr/local/rvm/gems/jruby-1.7.19/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274
load_dependency at
/usr/local/rvm/gems/jruby-1.7.19/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:240
require at
/usr/local/rvm/gems/jruby-1.7.19/gems/activesupport-4.2.4/lib/active_support/dependencies.rb:274
(root) at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/application.rb:1
require_environment! at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/application.rb:328
require_application_and_environment! at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:142
console at
/usr/local/rvm/gems/jruby-1.7.19/gems/railties-4.2.4/lib/rails/commands/commands_tasks.rb:67
require at org/jruby/RubyKernel.java:1071
(root) at bin/rails:8
Many thanks
> On 2 Dec 2015, at 15:47, Samarth Jain <[email protected]> wrote:
>
> Josh,
>
> One step worth trying would be is to register the PhoenixDriver instance and
> see if that helps. Something like this:
>
> DriverManager.registerDriver(PhoenixDriver.INSTANCE)
> Connection con = DriverManager.getConnection("jdbc:phoenix:localhost:2181”)
>
> - Samarth
>
>
> On Wed, Dec 2, 2015 at 3:41 PM, Josh Harrison <[email protected]
> <mailto:[email protected]>> wrote:
>
> Thanks for your help and quick response Russell. This does seemed to have
> progressed things, however I’m now getting the following error:
>
> NameError: cannot link Java class org.apache.phoenix.jdbc.PhoenixDriver,
> probable missing dependency: Could not initialize class
> org.apache.phoenix.jdbc.PhoenixDriver
>
> Any further ideas?
>
> Cheers,
> Josh
>
>
>> On 2 Dec 2015, at 11:37, Russell Jurney <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> This seems like a class path problem. Try specifying the class path to the
>> jar with that class in it via: CLASSPATH=/foo/bar.jar jruby ...
>>
>> On Wednesday, December 2, 2015, Josh Harrison <[email protected]
>> <mailto:[email protected]>> wrote:
>> Hi Guys,
>>
>> We’re trying to spin up a testing version of Phoenix and integrate it with a
>> Jruby on rails application. I have Phoenix and Hbase successfully installed,
>> configured and talking to each other, but am coming up with a ‘cannot load
>> java class’ error when trying to make the connection to the rails server.
>> I’m running this in standalone mode by the way for testing purposes.
>>
>> The correct phoenix-server jars in are the classpath for the application.
>>
>> Any help or guidance you can give on the the connection would be greatly
>> appreciated.
>>
>> Phoenix: 4.6
>> HBase: 1.1.2
>> JRuby: 1.7.19
>>
>> Error:
>>
>> NameError: cannot load Java class org.apache.phoenix.jdbc.PhoenixDriver
>> for_name at
>> org/jruby/javasupport/JavaClass.java:1286
>> get_proxy_class at
>> org/jruby/javasupport/JavaUtilities.java:34
>> java_import at
>> file:/usr/local/rvm/rubies/jruby-1.7.19/lib/jruby.jar!/jruby/java/core_ext/object.rb:27
>>
>> ______________________________________________________________________________________________
>>
>> Here’s my jdbc.rb connector:
>>
>> require 'java'
>> java_import 'org.apache.phoenix.jdbc.PhoenixDriver'
>>
>> java_import 'java.sql.Connection'
>> java_import 'java.sql.DriverManager'
>> java_import 'java.sql.ResultSet'
>> java_import 'java.sql.SQLException'
>> java_import 'java.sql.PreparedStatement'
>> java_import 'java.sql.Statement'
>>
>> Java::JavaClass.for_name "org.apache.phoenix.jdbc.PhoenixDriver"
>> Connection con = DriverManager.getConnection("jdbc:phoenix://localhost:2181”)
>> ______________________________________________________________________________________________
>>
>> Related Gems in Gemfile:
>>
>> activerecord-jdbc-adapter
>> jdbc-mysql
>>
>>
>> More generally do you have many examples or use cases of OLTP rails
>> applications connecting to phoenix, as most examples I’ve found seem to be
>> Java applications?
>>
>> Many Thanks,
>> Josh
>>
>>
>>
>>
>>
>>
>> --
>>
>>
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>> --
>> Russell Jurney twitter.com/rjurney <http://twitter.com/rjurney>
>> [email protected] <mailto:[email protected]> relato.io
>> <http://relato.io/>
>
>
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