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我正在尝试从 mongo DB 迁移到 Rails 上的 AWS documentDB。我更改了 mongoid.yml 的配置以指向记录的实例（在主机下）

运行 rake:db:mongoid:create_indexes 时出现以下错误：

rake aborted!
Mongo::Error::NoServerAvailable: No server is available matching preference: #<Mongo::ServerSelector::Primary:0x139580660 tag_sets=[] max_staleness=nil> using server_selection_timeout=60 and local_threshold=0.015
/usr/local/bundle/gems/mongo-2.6.2/lib/mongo/server_selector/selectable.rb:115:in `select_server'
/usr/local/bundle/gems/mongo-2.6.2/lib/mongo/cluster.rb:263:in `next_primary'
/usr/lib/ruby/2.3.0/forwardable.rb:202:in `next_primary'
/usr/local/bundle/gems/mongo-2.6.2/lib/mongo/index/view.rb:151:in `create_many'
/usr/local/bundle/gems/mongo-2.6.2/lib/mongo/index/view.rb:130:in `create_one'
/usr/local/bundle/gems/mongoid-5.4.0/lib/mongoid/indexable.rb:37:in `block in create_indexes'
/usr/local/bundle/gems/mongoid-5.4.0/lib/mongoid/indexable.rb:31:in `each'
/usr/local/bundle/gems/mongoid-5.4.0/lib/mongoid/indexable.rb:31:in `create_indexes'
/usr/local/bundle/gems/mongoid-5.4.0/lib/mongoid/tasks/database.rb:20:in `block in create_indexes'
/usr/local/bundle/gems/mongoid-5.4.0/lib/mongoid/tasks/database.rb:17:in `each'
/usr/local/bundle/gems/mongoid-5.4.0/lib/mongoid/tasks/database.rb:17:in `create_indexes'
/usr/local/bundle/gems/mongoid-5.4.0/lib/mongoid/tasks/database.rake:8:in `block (3 levels) in <top (required)>'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/task.rb:273:in `block in execute'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/task.rb:273:in `each'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/task.rb:273:in `execute'
/usr/local/bundle/gems/airbrake-9.5.0/lib/airbrake/rake.rb:17:in `execute'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/task.rb:214:in `block in invoke_with_call_chain'
/usr/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/task.rb:194:in `invoke_with_call_chain'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/task.rb:183:in `invoke'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/application.rb:160:in `invoke_task'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/application.rb:116:in `block (2 levels) in top_level'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/application.rb:116:in `each'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/application.rb:116:in `block in top_level'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/application.rb:125:in `run_with_threads'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/application.rb:110:in `top_level'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/application.rb:83:in `block in run'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/application.rb:186:in `standard_exception_handling'
/usr/local/bundle/gems/rake-12.3.2/lib/rake/application.rb:80:in `run'
/usr/local/bundle/gems/rake-12.3.2/exe/rake:27:in `<top (required)>'
/usr/local/bundle/bin/rake:23:in `load'
/usr/local/bundle/bin/rake:23:in `<main>'
Tasks: TOP => db:mongoid:create_indexes

安装的红宝石宝石：

mongo (2.6.2)
mongoid (5.4.0)

我错过了一些 gem 安装吗？它还不支持因此无法迁移 ATM 吗？

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2 回答 2

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用于 Ruby 的 MongoDB 驱动程序应与 Amazon DocumentDB 一起使用。是否检查了安全组配置并配置了证书？DocumentDB 只能从同一个 VPC 访问，并且默认启用 TLS。文档中有关于如何以编程方式连接的代码示例。

于 2022-03-01T12:36:15.907 回答
0

您的应用程序无法连接到数据库。

我错过了一些 gem 安装吗？

不，但是您使用的是相当旧的驱动程序（尽管维护您正在使用的 MongoDB Ruby 驱动程序的 MongoDB 不支持将其与 DocumentDB 一起使用，无论版本如何）。

它还不支持因此无法迁移 ATM 吗？

您还没有到达尝试创建索引的位置。

于 2020-05-05T14:43:03.833 回答