PG Exporter v1.2.0

VonngAuthor of PG Exporter and Pigsty; PostgreSQL infrastructure, monitoring, and the tooling in between.

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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