Question

我正在使用AWS Lambda运行一个简单的ruby脚本，其github project具有适合我需要的框架。

由于作为堆栈一部分的Traveling Ruby的限制而面临多个ruby和bundler版本冲突。

我能够在本地成功运行脚本，但是当我打包它并更新Lambda函数时，我在AWS测试台上遇到了一个奇怪的错误：

groovy:000> [[hi:1], [hello:2], [xyx:4]].sum()
===> [hi:1, hello:2, xyx:4]

在START RequestId: feab102b-5da5-11e7-bf18-739c73eb4ef0 Version: $LATEST 2017-06-30T15:08:39.144Z feab102b-5da5-11e7-bf18-739c73eb4ef0 Starting process: ./app 2017-06-30T15:08:51.403Z feab102b-5da5-11e7-bf18-739c73eb4ef0 stderr: /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require' 2017-06-30T15:08:51.403Z feab102b-5da5-11e7-bf18-739c73eb4ef0 stderr: : Could not load 'active_record/connection_adapters/postgresql_adapter'. Make sure that the adapter in config/database.yml is valid. If you use an adapter other than 'mysql', 'mysql2', 'postgresql' or 'sqlite3' add the necessary adapter gem to the Gemfile. (LoadError) from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `block in require' from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:240:in `load_dependency' from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require' from /var/task/lib/vendor/ruby/2.1.0/gems/pg-0.21.0/lib/pg.rb:4:in `<top (required)>' from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require' from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `block in require' from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:240:in `load_dependency' from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require' from /var/task/lib/vendor/ruby/2.1.0/gems/activerecord-4.2.9/lib/active_record/connection_adapters/postgresql_adapter.rb:17:in `<top (required)>' from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require' from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `block in require' from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:240:in `load_dependency' from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require' from /var/task/lib/vendor/ruby/2.1.0/gems/activerecord 4.2.9/lib/active_record/connection_adapters/connection_specification.rb:175:in `spec' from /var/task/lib/vendor/ruby/2.1.0/gems/activerecord 4.2.9/lib/active_record/connection_handling.rb:50:in `establish_connection' from /var/task/lib/app/app.rb:12:in `<main>' 2017-06-30T15:08:51.744Z feab102b-5da5-11e7-bf18-739c73eb4ef0 {"errorMessage":"Process \"./app\" exited with code: 1"} END RequestId: feab102b-5da5-11e7-bf18-739c73eb4ef0（它称之为db/config.yml，因为它应默认为rails树）我已设置config/database.yml以及所有其他必需设置。

代码完全存储在adapter: postgresql文件中，我已将其解压缩，并且能够找到我认为在Lambda环境中的.zip上提取的lib/vendor/ruby/2.1.0/gems/activerecord-4.2.9/lib/active_record/connection_adapters/postgresql_adapter.rb它显示在日志中。

我唯一能想到的是/var/task它在基本路径上丢失，因此找不到要加载的文件。

我很欣赏任何我可能遗漏的任何见解或任何修复此问题的线索。

谢谢！

Answer 1

最终导致上述错误具有误导性，因为activerecord实际上拯救了异常并引发了自定义错误消息，因此在加载pg gem时不会反映堆栈中其他位置发生的事实。实际错误是这样的：

START RequestId: a9e88496-6005-11e7-924c-e7c37f2df3e0 Version: $LATEST
2017-07-03T15:38:30.977Z    a9e88496-6005-11e7-924c-e7c37f2df3e0    Starting process: ./app
2017-07-03T15:38:42.337Z    a9e88496-6005-11e7-924c-e7c37f2df3e0    stderr:
/var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require'
2017-07-03T15:38:42.456Z    a9e88496-6005-11e7-924c-e7c37f2df3e0    stderr:
: libpq.so.5: cannot open shared object file: No such file or directory - /var/task/lib/vendor/ruby/2.1.0/extensions/x86_64-linux/2.1.0-static/pg-0.21.0/pg_ext.so - libpq.so.5: cannot open shared object file: No such file or directory - /var/task/lib/vendor/ruby/2.1.0/extensions/x86_64-linux/2.1.0-static/pg-0.21.0/pg_ext.so - Could not load 'active_record/connection_adapters/postgresql_adapter'. Make sure that the adapter in config/database.yml is valid. If you use an adapter other than 'mysql', 'mysql2', 'postgresql' or 'sqlite3' add the necessary adapter gem to the Gemfile. (LoadError)
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `block in require'
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:240:in `load_dependency'
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require'
from /var/task/lib/vendor/ruby/2.1.0/gems/pg-0.21.0/lib/pg.rb:4:in `<top (required)>'
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require'
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `block in require'
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:240:in `load_dependency'
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require'
from /var/task/lib/vendor/ruby/2.1.0/gems/activerecord-4.2.9/lib/active_record/connection_adapters/postgresql_adapter.rb:17:in `<top (required)>'
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require'
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `block in require'
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:240:in `load_dependency'
from /var/task/lib/vendor/ruby/2.1.0/gems/activesupport-4.2.9/lib/active_support/dependencies.rb:274:in `require'
from /var/task/lib/vendor/ruby/2.1.0/gems/activerecord-4.2.9/lib/active_record/connection_adapters/connection_specification.rb:175:in `spec'
from /var/task/lib/vendor/ruby/2.1.0/gems/activerecord-4.2.9/lib/active_record/connection_handling.rb:50:in `establish_connection'
from /var/task/lib/app/app.rb:12:in `<main>'

2017-07-03T15:38:42.676Z    a9e88496-6005-11e7-924c-e7c37f2df3e0    {"errorMessage":"Process \"./app\" exited with code: 1"}
END RequestId: a9e88496-6005-11e7-924c-e7c37f2df3e0

真正的原因也隐藏在这个错误背后。并不是找不到pg_ext.so，因为它就在这条道路上。

经过一些更多的研究，最后一个问题是libpg.so.5本身就是缺失的那个，并且要修复我必须在Traveling Ruby的库路径中添加它。

希望将来可以对其他人有所帮助！

AWS Lambda：无法加载'active_record / connection_adapters / postgresql_adapter'

1 个答案: