我在我的应用程序中使用 redis-cache 进行片段缓存。当 redis 关闭或无法访问时,我会收到引发 500 错误的超时异常。
这种情况很少发生,但是对于缓存,我希望 rails 将超时视为:
- 写入无操作
- 读取时缓存未命中。
有什么建议么?这是可以在 rails 缓存中配置的东西,还是我需要做一些猴子补丁来优雅地处理这种情况?
我的堆栈跟踪的相关部分如下,以防它有任何帮助。. .
execution expired
/opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/1.8/timeout.rb:60:in `new'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis/connection/ruby.rb:26:in `connect'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis/connection/ruby.rb:128:in `with_timeout'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis/connection/ruby.rb:25:in `connect'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis/client.rb:227:in `establish_connection'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis/client.rb:23:in `connect'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis/client.rb:247:in `ensure_connected'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis/client.rb:137:in `process'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis/client.rb:206:in `logging'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis/client.rb:136:in `process'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis/client.rb:46:in `call'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis.rb:157:in `get'
/opt/ruby-enterprise-1.8.7-2010.02/lib/ruby/1.8/monitor.rb:242:in `synchronize'
bundle/gems/ruby/1.8/gems/redis-2.2.2/lib/redis.rb:156:in `get'
bundle/gems/ruby/1.8/gems/redis-store-1.0.0.1/lib/redis/store/interface.rb:5:in `get'
bundle/gems/ruby/1.8/gems/redis-store-1.0.0.1/lib/redis/store/marshalling.rb:13:in `get'
bundle/gems/ruby/1.8/gems/redis-store-1.0.0.1/lib/active_support/cache/redis_store.rb:119:in `read_entry'