对于我的生产数据库，我使用的是 oracle_enhanced 适配器。这是由虚荣宝石支持的吗？从https://github.com/assaf/vanity，它说：“Vanity 使用内置于 Rails 中的 ActiveRecord 支持多个 SQL 存储（如 MySQL、MariaDB、Postgres、Sqlite 等）”。我不确定这是否包括 Oracle。
我尝试在我的 config/vanity.yml 中使用以下内容：
production:
adapter: oracle_enhanced
host: mydb.XXX.com
username: XXX
password: XXX
port: XXXX
database: mydb
但我得到的是下面的错误信息：
Could not find oracle_enhanced in your load path (RuntimeError)
我的 config/database.yml 实际上是使用adapter: oracle_enhanced.
任何建议我缺少什么？
[更新] 下面是堆栈跟踪：
Could not find oracle_enhanced in your load path (RuntimeError)
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/adapters.rb:16:in `rescue in establish_connection'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/adapters.rb:13:in `establish_connection'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/connection.rb:95:in `establish_connection'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/connection.rb:68:in `setup_connection'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/connection.rb:36:in `initialize'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/vanity.rb:98:in `new'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/vanity.rb:98:in `connect!'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/vanity.rb:69:in `connection'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/frameworks/rails.rb:12:in `block in load!'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/lazy_load_hooks.rb:34:in `call'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/lazy_load_hooks.rb:34:in `execute_hook'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/lazy_load_hooks.rb:42:in `each'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/application/finisher.rb:59:in `block in <module:Finisher>'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/initializable.rb:30:in `instance_exec'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/initializable.rb:30:in `run'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/initializable.rb:55:in `block in run_initializers'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/initializable.rb:54:in `each'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/initializable.rb:54:in `run_initializers'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/application.rb:136:in `initialize!'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/railtie/configurable.rb:30:in `method_missing'
/home/si/si_trunk/config/environment.rb:5:in `<top (required)>'
config.ru:3:in `require'
config.ru:3:in `block in <main>'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/rack-1.4.7/lib/rack/builder.rb:51:in `instance_eval'
/home/si/si_trunk/vendor/bundle/ruby/2.0.0/gems/rack-1.4.7/lib/rack/builder.rb:51:in `initialize'
config.ru:1:in `new'
config.ru:1:in `<main>'
/usr/local/httpd/passenger/helper-scripts/rack-preloader.rb:105:in `eval'
/usr/local/httpd/passenger/helper-scripts/rack-preloader.rb:105:in `preload_app'
/usr/local/httpd/passenger/helper-scripts/rack-preloader.rb:150:in `<module:App>'
/usr/local/httpd/passenger/helper-scripts/rack-preloader.rb:29:in `<module:PhusionPassenger>'
/usr/local/httpd/passenger/helper-scripts/rack-preloader.rb:28:in `<main>'
然后我将 config/vanity.yml 编辑为：
production:
adapter: active_record
active_record_adapter: oracle_enhanced
host: mydb.XXX.com
database: mydb
port: XXXX
username: XXX
password: XXX
这是更新 vanity.yml 后的堆栈跟踪：
NameError ("DESC vanity_experiments" failed; does it exist?):
vendor/bundle/ruby/2.0.0/gems/activerecord-oracle_enhanced-adapter-1.4.3/lib/active_record/connection_adapters/oracle_enhanced_connection.rb:76:in `describe'
vendor/bundle/ruby/2.0.0/gems/activerecord-oracle_enhanced-adapter-1.4.3/lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb:219:in `rescue in describe'
vendor/bundle/ruby/2.0.0/gems/activerecord-oracle_enhanced-adapter-1.4.3/lib/active_record/connection_adapters/oracle_enhanced_oci_connection.rb:214:in `describe'
vendor/bundle/ruby/2.0.0/gems/activerecord-oracle_enhanced-adapter-1.4.3/lib/active_record/connection_adapters/oracle_enhanced_adapter.rb:1074:in `columns_without_cache'
vendor/bundle/ruby/2.0.0/gems/activerecord-oracle_enhanced-adapter-1.4.3/lib/active_record/connection_adapters/oracle_enhanced_adapter.rb:1063:in `columns'
vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.20/lib/active_record/connection_adapters/schema_cache.rb:12:in `block in initialize'
vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.20/lib/active_record/model_schema.rb:229:in `yield'
vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.20/lib/active_record/model_schema.rb:229:in `columns'
vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.20/lib/active_record/model_schema.rb:249:in `column_names'
vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.20/lib/active_record/model_schema.rb:262:in `column_methods_hash'
vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.20/lib/active_record/dynamic_matchers.rb:74:in `all_attributes_exists?'
vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.20/lib/active_record/dynamic_matchers.rb:27:in `method_missing'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/adapters/active_record_adapter.rb:180:in `set_experiment_created_at'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/experiment/base.rb:159:in `save'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/experiment/ab_test.rb:544:in `save'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/experiment/definition.rb:21:in `define'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/experiment/ab_test.rb:708:in `ab_test'
/experiments/price_options.rb:1:in `new_binding'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/experiment/base.rb:24:in `eval'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/experiment/base.rb:24:in `block in load'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/experiment/base.rb:22:in `instance_eval'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/experiment/base.rb:22:in `load'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/playground.rb:248:in `block in set_experiments'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/playground.rb:247:in `each'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/playground.rb:247:in `set_experiments'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/playground.rb:26:in `initialize'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/vanity.rb:137:in `new'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/vanity.rb:137:in `load!'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/vanity.rb:127:in `playground'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/templates.rb:25:in `custom_template_path_valid?'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/templates.rb:15:in `determine_template_directory'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/templates.rb:4:in `initialize'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/templates.rb:37:in `new'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/templates.rb:37:in `template'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/frameworks/rails.rb:365:in `index'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/abstract_controller/base.rb:167:in `process_action'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_controller/metal/rendering.rb:10:in `process_action'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/abstract_controller/callbacks.rb:18:in `block in process_action'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:558:in `block in _run__1055270493__process_action__1054591083__callbacks'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:215:in `block in _conditional_callback_around_1772'
vendor/bundle/ruby/2.0.0/gems/vanity-2.2.1/lib/vanity/frameworks/rails.rb:146:in `vanity_context_filter'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:214:in `_conditional_callback_around_1772'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:414:in `_run__1055270493__process_action__1054591083__callbacks'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:405:in `__run_callback'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:81:in `run_callbacks'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/abstract_controller/callbacks.rb:17:in `process_action'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_controller/metal/rescue.rb:29:in `process_action'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/notifications.rb:123:in `block in instrument'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/notifications.rb:123:in `instrument'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_controller/metal/instrumentation.rb:29:in `process_action'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_controller/metal/params_wrapper.rb:207:in `process_action'
vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.20/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/rails3/action_controller.rb:30:in `block in process_action'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/controller_instrumentation.rb:362:in `perform_action_with_newrelic_trace'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/rails3/action_controller.rb:25:in `process_action'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/abstract_controller/base.rb:121:in `process'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/abstract_controller/rendering.rb:45:in `process'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_controller/metal.rb:203:in `dispatch'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_controller/metal.rb:246:in `block in action'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/routing/route_set.rb:73:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/routing/route_set.rb:36:in `call'
vendor/bundle/ruby/2.0.0/gems/journey-1.0.4/lib/journey/router.rb:68:in `block in call'
vendor/bundle/ruby/2.0.0/gems/journey-1.0.4/lib/journey/router.rb:56:in `each'
vendor/bundle/ruby/2.0.0/gems/journey-1.0.4/lib/journey/router.rb:56:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/routing/route_set.rb:608:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/rack/agent_hooks.rb:30:in `traced_call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/rack/browser_monitoring.rb:32:in `traced_call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/rack-attack-3.0.0/lib/rack/attack.rb:56:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/rack-1.4.7/lib/rack/etag.rb:23:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/rack-1.4.7/lib/rack/conditionalget.rb:25:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/head.rb:14:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/params_parser.rb:21:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/flash.rb:242:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/rack-1.4.7/lib/rack/session/abstract/id.rb:210:in `context'
vendor/bundle/ruby/2.0.0/gems/rack-1.4.7/lib/rack/session/abstract/id.rb:205:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/cookies.rb:341:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.20/lib/active_record/query_cache.rb:64:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/activerecord-3.2.20/lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:405:in `_run__665799391__call__857586578__callbacks'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:405:in `__run_callback'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/callbacks.rb:81:in `run_callbacks'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/rack/logger.rb:32:in `call_app'
vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/rack/logger.rb:16:in `block in call'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/tagged_logging.rb:22:in `tagged'
vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/rack/logger.rb:16:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/actionpack-3.2.20/lib/action_dispatch/middleware/request_id.rb:22:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/rack-1.4.7/lib/rack/methodoverride.rb:21:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/rack-1.4.7/lib/rack/runtime.rb:17:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/activesupport-3.2.20/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/rack-1.4.7/lib/rack/lock.rb:15:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/rack-cache-1.6.1/lib/rack/cache/context.rb:140:in `forward'
vendor/bundle/ruby/2.0.0/gems/rack-cache-1.6.1/lib/rack/cache/context.rb:249:in `fetch'
vendor/bundle/ruby/2.0.0/gems/rack-cache-1.6.1/lib/rack/cache/context.rb:189:in `lookup'
vendor/bundle/ruby/2.0.0/gems/rack-cache-1.6.1/lib/rack/cache/context.rb:66:in `call!'
vendor/bundle/ruby/2.0.0/gems/rack-cache-1.6.1/lib/rack/cache/context.rb:51:in `call'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/engine.rb:484:in `call'
vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/application.rb:231:in `call'
vendor/bundle/ruby/2.0.0/gems/railties-3.2.20/lib/rails/railtie/configurable.rb:30:in `method_missing'
vendor/bundle/ruby/2.0.0/gems/newrelic_rpm-3.13.0.299/lib/new_relic/agent/instrumentation/middleware_tracing.rb:67:in `call'
/usr/local/httpd/passenger/lib/phusion_passenger/rack/thread_handler_extension.rb:77:in `process_request'
/usr/local/httpd/passenger/lib/phusion_passenger/request_handler/thread_handler.rb:140:in `accept_and_process_next_request'
/usr/local/httpd/passenger/lib/phusion_passenger/request_handler/thread_handler.rb:108:in `main_loop'
/usr/local/httpd/passenger/lib/phusion_passenger/request_handler.rb:441:in `block (3 levels) in start_threads'
这是因为配置中的用户名不是表的所有者吗？但是，实际上，我已经授予了对配置中用户名的访问权限（选择、插入、更新、删除）。
这是我的 VANITY_EXPERMINETS_TABLE：
COLUMN_NAME DATA_TYPE NULLABLE
EXPERIMENT_ID VARCHAR2(50 BYTE) NO
OUTCOME NUMBER(11,0) YES
ENABLED CHAR(1 BYTE) YES
CREATED_AT DATE YES
COMPLETED_AT DATE YES