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Posted to user@phoenix.apache.org by Russell Jurney <ru...@gmail.com> on 2015/12/02 20:37:39 UTC
Re: JRuby on rails -> Phoenix connection error - cannot load java class
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 <jo...@coraxcyber.com>
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
>
>
>
>
>
>
> --
>
>
> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
> Inc. This email together with any attachments may contain confidential
> and/or privileged information. It may be read, copied and used only by the
> intended recipient. No one else may place any reliance on it or copy,
> disclose or forward all or any of it in any form. If you have received this
> email in error, please contact the sender immediately.
>
> If you receive this e-mail in error, please notify us immediately. Although
> Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email
> and any attachments are free of any virus, it is the responsibility of the
> recipient to ensure that it is virus free.
>
--
Russell Jurney twitter.com/rjurney russell.jurney@gmail.com relato.io
Re: JRuby on rails -> Phoenix connection error - cannot load java class
Posted by Josh Harrison <jo...@coraxcyber.com>.
Thanks Russell, I’ve posted it there as well now. If you remember the fix then let me know!
Cheers
> On 2 Dec 2015, at 17:27, Russell Jurney <ru...@gmail.com> wrote:
>
> I've seen this before in jruby, but I can't recall the fix. Maybe try the JRuby list if nobody knows?
>
> On Wednesday, December 2, 2015, Josh Harrison <joshharrison@coraxcyber.com <ma...@coraxcyber.com>> wrote:
> 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 <samarth@apache.org <javascript:_e(%7B%7D,'cvml','samarth@apache.org');>> 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 <joshharrison@coraxcyber.com <javascript:_e(%7B%7D,'cvml','joshharrison@coraxcyber.com');>> 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 <russell.jurney@gmail.com <javascript:_e(%7B%7D,'cvml','russell.jurney@gmail.com');>> 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 <joshharrison@coraxcyber.com <javascript:_e(%7B%7D,'cvml','joshharrison@coraxcyber.com');>> 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
>>>
>>>
>>>
>>>
>>>
>>>
>>> --
>>>
>>>
>>> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
>>> Inc. This email together with any attachments may contain confidential
>>> and/or privileged information. It may be read, copied and used only by the
>>> intended recipient. No one else may place any reliance on it or copy,
>>> disclose or forward all or any of it in any form. If you have received this
>>> email in error, please contact the sender immediately.
>>>
>>> If you receive this e-mail in error, please notify us immediately. Although
>>> Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email
>>> and any attachments are free of any virus, it is the responsibility of the
>>> recipient to ensure that it is virus free.
>>>
>>>
>>> --
>>> Russell Jurney twitter.com/rjurney <http://twitter.com/rjurney> russell.jurney@gmail.com <javascript:_e(%7B%7D,'cvml','russell.jurney@gmail.com');> relato.io <http://relato.io/>
>>
>>
>> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security Inc. This email together with any attachments may contain confidential and/or privileged information. It may be read, copied and used only by the intended recipient. No one else may place any reliance on it or copy, disclose or forward all or any of it in any form. If you have received this email in error, please contact the sender immediately.
>>
>> If you receive this e-mail in error, please notify us immediately. Although Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email and any attachments are free of any virus, it is the responsibility of the recipient to ensure that it is virus free.
>>
>>
>
>
> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security Inc. This email together with any attachments may contain confidential and/or privileged information. It may be read, copied and used only by the intended recipient. No one else may place any reliance on it or copy, disclose or forward all or any of it in any form. If you have received this email in error, please contact the sender immediately.
>
> If you receive this e-mail in error, please notify us immediately. Although Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email and any attachments are free of any virus, it is the responsibility of the recipient to ensure that it is virus free.
>
>
>
> --
> Russell Jurney twitter.com/rjurney <http://twitter.com/rjurney> russell.jurney@gmail.com <ma...@gmail.com> relato.io <http://relato.io/>
--
This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
Inc. This email together with any attachments may contain confidential
and/or privileged information. It may be read, copied and used only by the
intended recipient. No one else may place any reliance on it or copy,
disclose or forward all or any of it in any form. If you have received this
email in error, please contact the sender immediately.
If you receive this e-mail in error, please notify us immediately. Although
Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email
and any attachments are free of any virus, it is the responsibility of the
recipient to ensure that it is virus free.
Re: JRuby on rails -> Phoenix connection error - cannot load java class
Posted by Russell Jurney <ru...@gmail.com>.
I've seen this before in jruby, but I can't recall the fix. Maybe try the
JRuby list if nobody knows?
On Wednesday, December 2, 2015, Josh Harrison <jo...@coraxcyber.com>
wrote:
> 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 <samarth@apache.org
> <javascript:_e(%7B%7D,'cvml','samarth@apache.org');>> 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 <joshharrison@coraxcyber.com
> <javascript:_e(%7B%7D,'cvml','joshharrison@coraxcyber.com');>> 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 <russell.jurney@gmail.com
>> <javascript:_e(%7B%7D,'cvml','russell.jurney@gmail.com');>> 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 <
>> joshharrison@coraxcyber.com
>> <javascript:_e(%7B%7D,'cvml','joshharrison@coraxcyber.com');>> 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
>>>
>>>
>>>
>>>
>>>
>>>
>>> --
>>>
>>>
>>> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
>>> Inc. This email together with any attachments may contain confidential
>>> and/or privileged information. It may be read, copied and used only by
>>> the
>>> intended recipient. No one else may place any reliance on it or copy,
>>> disclose or forward all or any of it in any form. If you have received
>>> this
>>> email in error, please contact the sender immediately.
>>>
>>> If you receive this e-mail in error, please notify us immediately.
>>> Although
>>> Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email
>>> and any attachments are free of any virus, it is the responsibility of
>>> the
>>> recipient to ensure that it is virus free.
>>>
>>
>>
>> --
>> Russell Jurney twitter.com/rjurney russell.jurney@gmail.com
>> <javascript:_e(%7B%7D,'cvml','russell.jurney@gmail.com');> relato.io
>>
>>
>>
>> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
>> Inc. This email together with any attachments may contain confidential
>> and/or privileged information. It may be read, copied and used only by the
>> intended recipient. No one else may place any reliance on it or copy,
>> disclose or forward all or any of it in any form. If you have received this
>> email in error, please contact the sender immediately.
>>
>> If you receive this e-mail in error, please notify us immediately.
>> Although Corax Cyber Security Ltd and Corax Cyber Security Inc believes
>> this email and any attachments are free of any virus, it is the
>> responsibility of the recipient to ensure that it is virus free.
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>
>
>
> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
> Inc. This email together with any attachments may contain confidential
> and/or privileged information. It may be read, copied and used only by the
> intended recipient. No one else may place any reliance on it or copy,
> disclose or forward all or any of it in any form. If you have received this
> email in error, please contact the sender immediately.
>
> If you receive this e-mail in error, please notify us immediately.
> Although Corax Cyber Security Ltd and Corax Cyber Security Inc believes
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> responsibility of the recipient to ensure that it is virus free.
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Russell Jurney twitter.com/rjurney russell.jurney@gmail.com relato.io
Re: JRuby on rails -> Phoenix connection error - cannot load java class
Posted by Josh Harrison <jo...@coraxcyber.com>.
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 <sa...@apache.org> 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 <joshharrison@coraxcyber.com <ma...@coraxcyber.com>> 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 <russell.jurney@gmail.com <ma...@gmail.com>> 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 <joshharrison@coraxcyber.com <ma...@coraxcyber.com>> 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
>>
>>
>>
>>
>>
>>
>> --
>>
>>
>> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
>> Inc. This email together with any attachments may contain confidential
>> and/or privileged information. It may be read, copied and used only by the
>> intended recipient. No one else may place any reliance on it or copy,
>> disclose or forward all or any of it in any form. If you have received this
>> email in error, please contact the sender immediately.
>>
>> If you receive this e-mail in error, please notify us immediately. Although
>> Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email
>> and any attachments are free of any virus, it is the responsibility of the
>> recipient to ensure that it is virus free.
>>
>>
>> --
>> Russell Jurney twitter.com/rjurney <http://twitter.com/rjurney> russell.jurney@gmail.com <ma...@gmail.com> relato.io <http://relato.io/>
>
>
> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security Inc. This email together with any attachments may contain confidential and/or privileged information. It may be read, copied and used only by the intended recipient. No one else may place any reliance on it or copy, disclose or forward all or any of it in any form. If you have received this email in error, please contact the sender immediately.
>
> If you receive this e-mail in error, please notify us immediately. Although Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email and any attachments are free of any virus, it is the responsibility of the recipient to ensure that it is virus free.
>
>
--
This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
Inc. This email together with any attachments may contain confidential
and/or privileged information. It may be read, copied and used only by the
intended recipient. No one else may place any reliance on it or copy,
disclose or forward all or any of it in any form. If you have received this
email in error, please contact the sender immediately.
If you receive this e-mail in error, please notify us immediately. Although
Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email
and any attachments are free of any virus, it is the responsibility of the
recipient to ensure that it is virus free.
Re: JRuby on rails -> Phoenix connection error - cannot load java class
Posted by Samarth Jain <sa...@apache.org>.
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 <jo...@coraxcyber.com>
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 <ru...@gmail.com> 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 <jo...@coraxcyber.com>
> 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
>>
>>
>>
>>
>>
>>
>> --
>>
>>
>> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
>> Inc. This email together with any attachments may contain confidential
>> and/or privileged information. It may be read, copied and used only by the
>> intended recipient. No one else may place any reliance on it or copy,
>> disclose or forward all or any of it in any form. If you have received
>> this
>> email in error, please contact the sender immediately.
>>
>> If you receive this e-mail in error, please notify us immediately.
>> Although
>> Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email
>> and any attachments are free of any virus, it is the responsibility of the
>> recipient to ensure that it is virus free.
>>
>
>
> --
> Russell Jurney twitter.com/rjurney russell.jurney@gmail.com relato.io
>
>
>
> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
> Inc. This email together with any attachments may contain confidential
> and/or privileged information. It may be read, copied and used only by the
> intended recipient. No one else may place any reliance on it or copy,
> disclose or forward all or any of it in any form. If you have received this
> email in error, please contact the sender immediately.
>
> If you receive this e-mail in error, please notify us immediately.
> Although Corax Cyber Security Ltd and Corax Cyber Security Inc believes
> this email and any attachments are free of any virus, it is the
> responsibility of the recipient to ensure that it is virus free.
>
Re: JRuby on rails -> Phoenix connection error - cannot load java class
Posted by Josh Harrison <jo...@coraxcyber.com>.
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 <ru...@gmail.com> 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 <joshharrison@coraxcyber.com <ma...@coraxcyber.com>> 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
>
>
>
>
>
>
> --
>
>
> This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
> Inc. This email together with any attachments may contain confidential
> and/or privileged information. It may be read, copied and used only by the
> intended recipient. No one else may place any reliance on it or copy,
> disclose or forward all or any of it in any form. If you have received this
> email in error, please contact the sender immediately.
>
> If you receive this e-mail in error, please notify us immediately. Although
> Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email
> and any attachments are free of any virus, it is the responsibility of the
> recipient to ensure that it is virus free.
>
>
> --
> Russell Jurney twitter.com/rjurney <http://twitter.com/rjurney> russell.jurney@gmail.com <ma...@gmail.com> relato.io <http://relato.io/>
--
This is an e-mail from Corax Cyber Security Ltd or Corax Cyber Security
Inc. This email together with any attachments may contain confidential
and/or privileged information. It may be read, copied and used only by the
intended recipient. No one else may place any reliance on it or copy,
disclose or forward all or any of it in any form. If you have received this
email in error, please contact the sender immediately.
If you receive this e-mail in error, please notify us immediately. Although
Corax Cyber Security Ltd and Corax Cyber Security Inc believes this email
and any attachments are free of any virus, it is the responsibility of the
recipient to ensure that it is virus free.