tencent cloud

TDSQL Boundless

Metrics

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Last updated: 2026-05-26 11:28:34
All metrics related to KV separation are prefixed with rocksdb_blobdb_. You can view them using the following methods:
SHOW GLOBAL STATUS LIKE 'rocksdb_blobdb_%';
Core metrics of greatest concern to business stakeholders:
Metric
Type
Description
rocksdb_blobdb_num_keys_written
Counter
The cumulative number of keys written and separated to Blob
rocksdb_blobdb_num_keys_read
Counter
The cumulative number of keys read from Blob
rocksdb_blobdb_bytes_written
Counter
The number of bytes written to Blob
rocksdb_blobdb_bytes_read
Counter
The number of bytes read from Blob
rocksdb_blobdb_blob_file_bytes_written
Counter
The number of bytes actually written to disk for Blob files
rocksdb_blobdb_blob_file_synced
Counter
The number of fsync operations on Blob files
rocksdb_blobdb_gc_num_files
Counter
The number of Blob files involved in GC
rocksdb_blobdb_gc_bytes_relocated
Counter
The number of bytes relocated during GC
rocksdb_blobdb_cache_hit / _miss
Counter
Blob Cache hits / misses (Blob Cache must be enabled)
rocksdb_blobdb_get_micros
Histogram
The distribution of latency for a single Blob Get operation
rocksdb_blobdb_blob_file_read_micros
Histogram
The distribution of latency for a single Blob file read operation

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