postgres_exporter/CHANGELOG.md

v0.9.0

First release under the Prometheus Community organisation.

• [CHANGE] Update build to use standard Prometheus promu/Dockerfile
• [ENHANCEMENT] Remove duplicate column in queries.yml #433
• [ENHANCEMENT] Add query for 'pg_replication_slots' #465
• [ENHANCEMENT] Allow a custom prefix for metric namespace #387
• [ENHANCEMENT] Improve PostgreSQL replication lag detection #395
• [ENHANCEMENT] Support connstring syntax when discovering databases #473
• [ENHANCEMENT] Detect SIReadLock locks in the pg_locks metric #421
• [BUGFIX] Fix pg_database_size_bytes metric in queries.yaml #357
• [BUGFIX] Don't ignore errors in parseUserQueries #362
• [BUGFIX] Fix queries.yaml for AWS RDS #370
• [BUGFIX] Recover when connection cannot be established at startup #415
• [BUGFIX] Don't retry if an error occurs #426
• [BUGFIX] Do not panic on incorrect env #457

v0.8.0

• Add a build info metric (#323)
• Re-add pg_stat_bgwriter metrics which were accidentally removed in the previous version. (resolves #336)
• Export pg_stat_archiver metrics (#324)
• Add support for 'DATA_SOURCE_URI_FILE' envvar.
• Resolve #329
• Added new field "master" to queries.yaml. (credit to @sfalkon)
  • If "master" is true, query will be call only on once database in instance
• Change queries.yaml for work with autoDiscoveryDatabases options (credit to @sfalkon)
  • added current database name to metrics because any database in cluster maybe have the same table names
  • added "master" field for query instance metrics.

v0.7.0

Introduces some more significant changes, hence the minor version bump in such a short time frame.

• Rename pg_database_size to pg_database_size_bytes in queries.yml.
• Add pg_stat_statements to sample queries.yml file.
• Add support for optional namespace caching. (#319)
• Fix some autodiscovery problems (#314) (resolves #308)
• Yaml parsing refactor (#299)
• Don't stop generating fingerprint while encountering value with "=" sign (#318) (may resolve problems with passwords and special characters).

v0.6.0

• Add SQL for grant connect (#303)
• Expose pg_current_wal_lsn_bytes (#307)
• [minor] fix landing page content-type (#305)
• Updated lib/pg driver to 1.2.0 in order to support stronger SCRAM-SHA-256 authentication. This drops support for Go < 1.11 and PostgreSQL < 9.4. (#304)
• Provide more helpful default values for tables that have never been vacuumed (#310)
• Add retries to getServer() (#316)
• Fix pg_up metric returns last calculated value without explicit resetting (#291)
• Discover only databases that are not templates and allow connections (#297)
• Add --exclude-databases option (#298)

v0.5.1

• Add application_name as a label for pg_stat_replication metrics (#285).

v0.5.0

It's been far too long since I've done a release and we have a lot of accumulated changes.

• Docker image now runs as a non-root user named "postgres_exporter"
• Add --auto-discover-databases option, which automatically discovers and scrapes all databases.
• Add support for boolean data types as metrics
• Replication lag is now expressed as a float and not truncated to an integer.
• When default metrics are disabled, no version metrics are collected anymore either.
• BUGFIX: Fix exporter panic when postgres server goes down.
• Add support for collecting metrics from multiple servers.
• PostgreSQL 11 is now supported in the integration tests.

v0.4.7

• Added a query for v9.1 pg_stat_activity.
• Add --constantLabels flag to allow applying fixed constant labels to metrics.
• queries.yml: dd pg_statio_user_tables.
• Support 'B' suffix in units.

v0.4.6

• Fix issue #173 - 32 and 64mb unit sizes were not supported in pg_settings.

v0.4.5

• Add commandline flag to disable default metrics (thanks @hsun-cnnxty)

v0.4.4

• Bugfix for 0.4.3 which broke pg_up (it would always be 0).
• pg_up is now refreshed based on database Ping() every scrape.
• Re-release of 0.4.4 to fix version numbering.

v0.4.2

• Adds the following environment variables for overriding defaults:

  • PG_EXPORTER_WEB_LISTEN_ADDRESS
  • PG_EXPORTER_WEB_TELEMETRY_PATH
  • PG_EXPORTER_EXTEND_QUERY_PATH

• Add Content-Type to HTTP landing page.

• Fix Makefile to produce .exe binaries for Windows.

v0.4.1

• No code changes to v0.4.0 for the exporter.
• First release switching to tar-file based distribution.
• First release with Windows and Darwin cross-builds.\

v0.4.0

• Fix panic due to inconsistent label cardinality when using queries.yaml with queries which return extra columns.
• Add metric for whether the user queries YAML file parsed correctly. This also includes the filename and SHA256 sum allowing tracking of updates.
• Add pg_up metric to indicate whether the exporter was able to connect and Ping() the PG instance before a scrape.
• Fix broken link in landing page for /metrics

v0.3.0

• Add support for PostgreSQL 10.

v0.2.3

• Add support for the 16kB unit when decoding pg_settings. (#101)

v0.2.2

• Fix DSN logging. The exporter previously never actually logged the DSN when database connections failed. This was also masking a logic error which could potentially lead to a crash when DSN was unparseable, though no actual crash could be produced in testing.

v0.2.1

• Ignore functions that cannot be executed during replication recovery (#52)
• Add a -version flag finally.
• Add confirmed_flush_lsn to pg_stat_replication.

v0.2.0

• Major change - use pg_settings to retrieve runtime variables. Adds >180 new metrics and descriptions (big thanks to Matt Bostock for this work).

  Removes the following metrics:

  pg_runtime_variable_max_connections
  pg_runtime_variable_max_files_per_process
  pg_runtime_variable_max_function_args
  pg_runtime_variable_max_identifier_length
  pg_runtime_variable_max_index_keys
  pg_runtime_variable_max_locks_per_transaction
  pg_runtime_variable_max_pred_locks_per_transaction
  pg_runtime_variable_max_prepared_transactions
  pg_runtime_variable_max_standby_archive_delay_milliseconds
  pg_runtime_variable_max_standby_streaming_delay_milliseconds
  pg_runtime_variable_max_wal_senders
  

  They are replaced by equivalent names under pg_settings with the exception of

  pg_runtime_variable_max_standby_archive_delay_milliseconds
  pg_runtime_variable_max_standby_streaming_delay_milliseconds
  

  which are replaced with

  pg_settings_max_standby_archive_delay_seconds
  pg_settings_max_standby_streaming_delay_seconds
  

v0.1.3

• Update the Go build to 1.7.5 to include a fix for NAT handling.
• Fix passwords leaking in DB url error message on connection failure.

v0.1.2

• Use a connection pool of size 1 to reduce memory churn on target database.

v0.1.1

• Fix pg_stat_replication metrics not being collected due to semantic version filter problem.

v0.1.0

• Change default port to 9187.
• Fix regressions with pg_stat_replication on older versions of Postgres.
• Add pg_static metric to store version strings as labels.
• Much more thorough testing structure.
• Move to semantic versioning for releases and docker image publications.

v0.0.1

Initial release for publication.