ServiceComb1.2.0发布|新版本特性解读

近日，正在Apache基金会孵化项目—微服务解决方案Apache ServiceComb的1.2.0版本通过社区投票，正式发布。

这次发版的项目包括：

主要新增特性及提升如下:

Java-chassis

https://servicecomb.apache.org/cn/release/java-chassis-release-notes/

*支持统计调用时延分布，可以自定义时延分段

*增加http连接池中排队等待连接的请求数采集

*增加线程池因队列满而拒绝请求数的采集

*增加inspector模块

🌟New Features

[SCB-781] - apollo as configuration center not support @ConfigurationProperties
[SCB-968] - http2 not support download by pump mechanism
[SCB-1065] - when request not contain traceId,should use provider's invocation's traceId
[SCB-1095] - Timer task need catch all throwable to protected from unexpected error
[SCB-1141] - latest versionRule can not update to new version
[SCB-1226] - there are problems when request rejected by thread pool queue full
[SCB-1230] - avoid throw exception in httpClientResponse.

exceptionHandler
[SCB-1165] - filter bridge methods when generate swagger

ServiceCenter

https://servicecomb.apache.org/cn/release/service-center-release-notes/

[SCB-1050] - Metrics cache does not clean
[SCB-1059] - Unexpected events publish if error occurs in previous list-watch loop
[SCB-1059] - Re-register instance does not keep alive the lease
[SCB-1059] - Use the raw password if decrypt failed
[SCB-1059] - Should not show the shared microservices by default
[SCB-1059] - Add grpc keepalive time
[SCB-1069] - Wrong response of batch delete microservices API

ServiceComb Pack

https://servicecomb.apache.org/cn/release/pack-release-notes/

* Provides Alpha HA implementation

* Support to use eureka or consul to do the service discovery of Alpha

* Fix the event scanner thread exit issue

[SCB-244] - [pack] add demo to use pack with java chassis
[SCB-630] - Active the -Pdocker profile if detect the docker installation
[SCB-639] - upgrade docker maven plugin
[SCB-660] - Update the dubbo example compose file
[SCB-750] - Dependency management is incomplete in Saga and Java-Chassis
[SCB-785] - Cannot get the GlobalTxId and LocalTxId in the compensation method
[SCB-805] - If the node time of alpha and omega are not same, the transaction could be aborted
[SCB-806] - Polish alpha-server logger
[SCB-813] - pack-contract-grp module mvn install builds failure
[SCB-916] - Clean up @order annotation in TransactionAspectConfig