Feign为什么要配置HC

feign: hystrix:
enabled: true
httpclient:
enabled: false
okhttp:
enabled: true
client:
config:
default:
connectTimeout: 15000
readTimeout: 15000

feign: httpclient:
enabled: false
okhttp:
enabled: true
client:
config:
default:
connectTimeout: 15000
readTimeout: 15000
compression:
request:
enabled: true
mime-types: text/xml,application/xml,application/json
min-request-size: 2048