![]() Read Throughput Local Storage (MB/Second) The average number of bytes read from disk per second. The average amount of time taken per disk I/O operation for local storage. The average amount of time taken per disk I/O operation. The average number of disk read I/O operations to local storage per second. ![]() The average number of disk read I/O operations per second. The lagging size of the replica lagging the most in terms of write-ahead log (WAL) data received. The outgoing (transmit) network traffic on the DB instance, including both customer database traffic and Amazon RDS Traffic used for monitoring and replication. ![]() The incoming (receive) network traffic on the DB instance, including both customer database traffic and Amazon RDS The maximum transaction IDs that have been used. (This doesn't apply to Aurora Serverless v2.) For example, the db.m6gd and db.r6gd DB instance classes have The equivalent RDS DB instance classes have the same This metric only applies to DB instance classes with NVMe SSD instance store volumes.įor information about Amazon EC2 instances with NVMe SSD instance store volumes, see The amount of available local storage space. The amount of available random access memory.įor MariaDB, MySQL, Oracle, and PostgreSQL DB instances, this metric reports the value of the The number of failed Microsoft SQL Server Agent jobs during the last minute. įailed SQL Server Agent Jobs Count (Count/Minute) To learn how to use this metric, see Improving application performance and reducing costs with Amazon EBS-Optimized Instance burst capability. This metric is different from BurstBalance. The percentage of I/O credits remaining in the burst bucket of your RDS database. The Sum statistic is not applicable to this Table in Amazon EC2 User Guide for Linux Instances. To find the instance sizes that support this metric, see the instance sizes with an asterisk (*) in the EBS optimized by default The metric value is based on the throughput and IOPS of all volumes, including the root volume, rather than on only those volumes containing database files. The percentage of throughput credits remaining in the burst bucket of your RDS database. The number of outstanding I/Os (read/write requests) waiting to access the disk. Sessions created by the database engine job scheduler Sessions created by the database engine's parallel execution capabilities Sessions created by the database engine for its own purposes Sessions that no longer have a network connection but which the database hasn't cleaned up The number of database sessions can be higher than the metric value because the metric value doesn't include the The number of client network connections to the database instance. ![]() For more information, see LaunchĬredits in the Amazon Elastic Compute Cloud User Guide for Linux Instances. Launch credits work the same way in Amazon RDS as they do in Amazon EC2. When the instance stops, theĬPUCreditBalance does not persist, and all accrued credits are lost.ĬPU credit metrics are available at a five-minute frequency only. When an instance is running, credits in the CPUCreditBalance don't expire. The credits in the CPUCreditBalance are available for the instance to spend to burst beyond its For T2 Standard, launch credits don't count towards the limit. After the limit is reached, any newĬredits that are earned are discarded. The credit balance has a maximum limit, determined by the instance size. T2 Standard, the CPUCreditBalance also includes the number of launch credits that have beenĬredits are accrued in the credit balance after they are earned, and removed from the credit balance when they are (T2 instances) The number of earned CPU credits that an instance has accrued since it was launched or started. Use the Sum statistic instead of the Average statistic. If you specify a period greater than five minutes, ForĮxample, you might have one vCPU running at 50 percent utilization for two minutes or two vCPUs running at 25 percentĬPU credit metrics are available at a five-minute frequency only. Running at 100 percent utilization for one minute or an equivalent combination of vCPUs, utilization, and time. (T2 instances) The number of CPU credits spent by the instance for CPU utilization. The number of attempts to connect to an instance, whether successful or not. The amount of time since the most recent checkpoint. The percent of General Purpose SSD (gp2) burst-bucket I/O credits available. Including read replicas, binary logs are created. If automatic backups are enabled for MySQL and MariaDB instances, The amount of disk space occupied by binary logs.
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