prometheus/mysqld_exporter v0.21.0

0.21.0 / 2026-10-22

on GitHub

BREAKING CHANGES:

• Selected mysql_global_status_* and mysql_slave_status_* metrics now expose Counter or Gauge types instead of Untyped.
  This includes query and table-cache totals, thread and uptime values, and replica running and lag values.
  Consumers that inspect metric family types should review these series. #1099

Changes:

• [FEATURE] Add the optional info_schema.innodb_trx collector for active transaction counts and oldest transaction age by state. #1087
• [FEATURE] Add the optional info_schema.schema_size collector, exporting data and index size per schema. #1091
• [ENHANCEMENT] Type selected global and replica status metrics as counters or gauges. #1099
• [BUGFIX] Allow literal dollar signs in configuration-file passwords by escaping them as $$. #1005
• [BUGFIX] Preserve HTTP/2 negotiation across web TLS configuration reloads through the exporter-toolkit update. #1089
• [BUGFIX] Parse the binary log file number after the final dot when the basename contains dots. #1095