tidbSumCPUUsageMetricsPattern problem (#3421) (#3421)
tidbSumCPUUsageMetricsPattern problem (#3421) (#3421)

Signed-off-by: shenzhengcmss <38eb890147a9508f414c5a0a0f5fdb257e1ebfa6@cmss.chinamobile.com>
pingcap/pd,pingcap/pd