我尝试将缓存与集合一起使用(使用多种解决方案),问题是每当我尝试缓存时,响应都会变慢
考虑以下集合示例,该集合为其中的每个项目(大约 25 个项目)呈现 2 个部分
json.data do
json.array! @organizations do |organization|
json.partial! 'api/v1/organizations/organization', organization: organization
json.partial! 'api/v1/organizations/links', organization: organization
end
end
没有缓存,平均响应时间约为 38 毫秒(平均)
现在有缓存
json.data do
json.array! @organizations do |organization|
json.cache! organization do
json.partial! 'api/v1/organizations/organization', organization: organization
json.partial! 'api/v1/organizations/links', organization: organization
end
end
end
jbuilder 默认缓存和 dalli 存储已正确安装和配置(我可以验证没有缓存丢失)
平均响应约为 59 毫秒(平均)
使用上找到的语法缓存摘要 https://github.com/rails/cache_digests
json.data do
json.cache! @organizations do
json.partial! 'api/v1/organizations/organization', collection: @organizations, as: :organization
json.partial! 'api/v1/organizations/links', collection: @organizations, as: :organization
end
end
平均响应时间约为 41ms(平均),并且该响应与其他响应不同
# Instead of getting
[{ data:{}, links:{} }, {{ data:{}, links:{} }]
# I get
[{ data:{}, data:{}, links:{}, links:{} }]
但是文件的缓存摘要是一个非常大的字符串,很容易超过unix最大文件名长度。
例如,这是文件名。
Cache write: jbuilder/organizations/5509f9284162643526000000-20150322012449497000000/organizations/5509e5924162643056020000-20150320223230684000000/organizations/550b54d8416264add2040000-20150321004501311000000/organizations/550e35704162640a98030000-20150322032224768000000/organizations/550e357b4162640a98050000-20150322032235260000000/organizations/550e35834162640a98080000-20150322032243162000000/organizations/550e35894162640a980a0000-20150322032249767000000/organizations/550e35904162640a980c0000-20150322032256464000000/organizations/550e35944162640a980e0000-20150322032300519000000/organizations/550e35984162640a98100000-20150322032304428000000/organizations/550e359c4162640a98120000-20150322032308542000000/organizations/550e35a04162640a98140000-20150322032312514000000/organizations/550e35a54162640a98160000-20150322032317066000000/organizations/550e35a84162640a98180000-20150322032320850000000/organizations/550e35ac4162640a981a0000-20150322032324716000000/organizations/550e35b04162640a981c0000-20150322032328643000000/organizations/550e35b54162640a981e0000-20150322032333651000000/organizations/550e35ba4162640a98200000-20150322032338114000000/organizations/550e35bd4162640a98220000-20150322032341889000000/organizations/550e35c14162640a98240000-20150322032345602000000/organizations/550e35c54162640a98260000-20150322032349739000000/3fcda1f9c320ab4284da56b4b2337cf5`
我也累了Jbuilder 多缓存 https://github.com/joshblour/jbuilder_cache_multi
json.data do
json.cache_collection! @organizations do |organization|
json.partial! 'api/v1/organizations/organization', organization: organization
json.partial! 'api/v1/organizations/links', organization: organization
end
end
响应约为 57 毫秒(平均)
再加上 jbuilder 缓存和 multi,我在日志中得到了很多这些内容
Cache digest for app/views/api/v1/organizations/index.json.jbuilder: 3a51096b9c8da6a2cdb5b5a33ee58ea4
Cache digest for app/views/api/v1/organizations/_organization.json.jbuilder: 4a1f1d49c90fdd867d88701f8a3fd6e1
Cache digest for app/views/api/v1/organizations/_links.json.jbuilder: f2a881e125f95421d566edd571fdec73
Cache digest for app/views/api/v1/organizations/index.json.jbuilder: 3a51096b9c8da6a2cdb5b5a33ee58ea4
Cache digest for app/views/api/v1/organizations/_organization.json.jbuilder: 4a1f1d49c90fdd867d88701f8a3fd6e1
Cache digest for app/views/api/v1/organizations/_links.json.jbuilder: f2a881e125f95421d566edd571fdec73
Cache digest for app/views/api/v1/organizations/index.json.jbuilder: 3a51096b9c8da6a2cdb5b5a33ee58ea4
Cache digest for app/views/api/v1/organizations/_organization.json.jbuilder: 4a1f1d49c90fdd867d88701f8a3fd6e1
那么我的实现、机器或本地环境有问题吗?
Rails 4.2.0 和 Jbuilder 2.2.11
我也将此问题发布到 jbuilder #259 https://github.com/rails/jbuilder/issues/259