Missing Metric Coverage for CloudWatch, Enhanced Monitoring, and Performance Insights in RDS Exporter

[VamilP]

Hi team,

First of all, thank you for your work on this exporter — it's been very helpful in integrating RDS metrics into our observability stack.

While working on aligning our CloudWatch and Enhanced Monitoring metrics with the prometheus/mysqld_exporter, I noticed that some metrics commonly available in CloudWatch, Enhanced Monitoring, and Performance Insights do not seem to have corresponding metrics exposed by the exporter. Below is a list for reference:

CloudWatch Metrics:

BinlogDiskUsage
DBLoadRelativeToNumvCPUs
DiskQueueDepth
LVMReadIOPs
LVMWriteIOPs
Write Latency
Read Latency
Network Receive Throughput
Network Write Throughput

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Enhanced Monitoring Metrics:

Active Memory
CPU User
CPU Total
Task Running

Performance Insights Metrics:

IOLatency
EBS IO read operations by volume (Per second)
EBS IO write operations by volume (Per second)
InnoDB history list length
Deadlocks
Binlog disk usage (Bytes)

Would it be possible to confirm whether support for any of these metrics is currently planned, or if there’s guidance on how these could be mapped or extended manually?

Thanks again for your work and support!