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postgres_exporter/CHANGELOG.md

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0.9.0 / 2021-03-01

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

0.8.0 / 2019-11-25

  • 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.

0.7.0 / 2019-11-01

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).

0.6.0 / 2019-10-30

  • 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)

0.5.1 / 2019-07-09

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

0.5.0 / 2019-07-03

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.

0.4.7 / 2018-10-02

  • 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.

0.4.6 / 2018-04-15

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

0.4.5 / 2018-02-27

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

0.4.4 / 2018-03-21

  • 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.

0.4.2 / 2018-02-19

  • 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.

0.4.1 / 2017-11-30

  • 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.\

0.4.0 / 2017-11-29

  • 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

0.3.0 / 2017-10-23

  • Add support for PostgreSQL 10.

0.2.3 / 2017-09-07

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

0.2.2 / 2017-08-04

  • 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.

0.2.1 / 2017-06-07

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

0.2.0 / 2017-04-18

  • 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

0.1.3 / 2017-02-21

  • 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.

0.1.2 / 2017-02-07

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

0.1.1 / 2016-11-29

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

0.1.0 / 2016-11-21

  • 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.

0.0.1 / 2016-06-03

Initial release for publication.