Due to the upgrade of data centers in the China (Hong Kong) region, you can query only performance metrics from the last 21 days for Tair（Redis OSS-compatible） instances in the China (Hong Kong) region.
Scope of impacts
Tair instances in the China (Hong Kong) region
Duration
21:00 on January 15, 2024 (UTC+8) to 00:00 on January 24, 2024 (UTC+8)
Impacts
During the preceding time period, the Performance Monitor feature in the console and the DescribeHistoryMonitorValues API operation can query only up to 21 days of historical data. It is expected that the system will return to normal at 00:00 on January 24, 2024, at which point you will be able to query up to 30 days of historical data.
Suggestions
This upgrade does not affect the normal operation of instances. You do not need to perform any operations.