Apache ServiceComb Java-Chassis 2.8.14

Important Changed

• servicecomb.rest.client.connection.timeoutInMillis default value changed from 1000 to 60000
• add a new configuration servicecomb.loadbalance.filter.zoneaware.ratio for zone-aware filter and default value is 30. Which means if the instance ratio is less than 30%, will not use zone-aware.
• router add a fallback configuration to support gray release with a matched group do not have any instance.

      - precedence: 3
        match:
          headers:
            canary:
              exact: fallback
        route:
          - weight: 100
            tags:
              version: 0.0.3
        fallback:
          - weight: 20
            tags:
              version: 0.0.1
          - weight: 80
            tags:
              version: 0.0.2

What's Changed

• [#4065] fix loaded variable not assigned by @bigDouble46 in #4076
• [#2670]use java system api to retrieve CPU usage by @liubao68 in #4098
• [#4051]fix buffer reader not correct when length is 0 by @liubao68 in #4099
• [#4074] optimize cors model init failed unclear prompt problem. by @chengyouling in #4095
• [#4049]fix shutdown in progress exception problem by @liubao68 in #4102
• [SCB-2841]zone-aware filter support configure group size ratio by @liubao68 in #4108
• [#4035] fix invocation context loss issue by @yanghao605 in #4110
• [#4054] make the operationConfig lazy to load by @yanghao605 in #4109
• [#4053] add cache for get RetryHandler bean by @chengyouling in #4113
• [#4132] router support set fallback route as downgrading routing strategy by @chengyouling in #4133
• [SCB-2843]detect known configuration problems and send warning message by @liubao68 in #4138
• [SCB-2842]change default setting for connection timeout and zone-aware ratio by @liubao68

Full Changelog: 2.8.13...2.8.14