pg_exporter v1.2.0

Hot reload, non-blocking startup, PG9.x legacy support
By Ruohang Feng |
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v1.2.0 is a stability-and-compatibility focused minor release across startup flow, hot reload, health probing, config validation, and legacy support.

New Features

  • Add robust hot reload workflow: support platform-specific reload signals (SIGHUP / SIGUSR1) and strengthen POST /reload to refresh configs and query plans without process restart
  • Switch startup to non-blocking mode: HTTP endpoints come up first even when target precheck fails, making recovery and monitoring integration smoother
  • Add PostgreSQL 9.1-9.6 legacy config bundle: provide legacy/ configs and a make conf9 target for easier onboarding of EOL PostgreSQL versions
  • Rework health probing architecture: use cached health snapshots with periodic probes for more consistent role-based health endpoints and smoother reload behavior
  • Improve release engineering baseline: run go test and go vet in release workflows and bump build toolchain to Go 1.26.0

Bug Fixes

  • Fix multiple config parsing edge cases: reject malformed metrics entries, return explicit errors when config dirs fail to load valid YAML, and harden runtime fallbacks
  • Fix CLI bool flag parsing to correctly handle --flag=false style arguments
  • Fix /explain output/rendering behavior by adjusting content type handling and using safer template rendering
  • Fix predicate query and PG URL handling details: better BOOL/BOOLEAN predicate support, safer row lifecycle handling, and improved dbname query-parameter parsing/redaction
  • Fix resource cleanup when auto-discovered targets are removed by closing dropped server connections asynchronously
  • Fix metric/label validation details including const-label conflict checks, scaled default-value handling, and Prometheus naming/rule checks

Checksums

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4ec219135c49708d010af7b8a7553b8008f630574e1d4cfc7642fbf951eefafe  pg-exporter_1.2.0-1_arm64.deb
5b2cc00e2c3e2ffd9eb0ab1a4f5e937dd68f3a69a14423a74d4de3d7cf29283e  pg-exporter_1.2.0-1_ppc64le.deb
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3ba1c7adea9c926afd3054ba18cc43e665e420a495bfcfd2248242c49a67b077  pg_exporter-1.2.0.darwin-arm64.tar.gz
9e1ec6c15e6b2aaadbe27a27053ee1ec289bdd012c19ca6371de738fa5f8843e  pg_exporter-1.2.0.linux-amd64.tar.gz
9e18849693ccda313979db0a230cb81acfe4199364feb6ce3e72d1a89fbfb809  pg_exporter-1.2.0.linux-arm64.tar.gz
6e28489685d0bd1fdabcb71474f64f559ade199b871666954323bae9dc01465f  pg_exporter-1.2.0.linux-ppc64le.tar.gz
9e9beac619fe2c614a77bc3334bc4b80df9db355bf95845eb4b11674ddad52d9  pg_exporter-1.2.0.windows-amd64.tar.gz

Release resources

Last modified February 12, 2026