Release v1.7.0

Release v1.7.0

• Enhancement & New Features
  • Support restoring from Alibaba Cloud PolarDB-X backup set
  • Support backup set compress
  • Support Huawei Cloud OBS as storage provider by s3 protocol
  • Change the failure threshold to 300s when startuping cn engine
  • Add spec info to backup set of standard instance
  • Skip validation when syncing spec from backup set
  • Support the latest version of DN
• Bug Fix
  • Fix polardbx_root account type
  • Fix delete expired files wrongly by s3 protocol