PuppetDB: Release notes

Sections

PuppetDB 7.2.0

Released 24 February 2021

New features and improvements

  • Added two new users connection-migrator-username and connection-username in database.ini config file. The new users are used to establish connections to the database when the connection username is different from the database username (this is the case for managed PostgreSQL in Azure) PDB-4934
  • A new metric (:concurrent-depth), which counts the number of /cmd API requests that are waiting to write to the disk, was added. PDB-4268
  • A new metric (new-fact-time) was added under puppetlabs.puppetdb.storage. This metric measures the time it takes to persist facts for a never before seen certname. PDB-3418
  • The performance dashboard is now accessible on the HTTPS port. In PE, if the PuppetDB is using a certificate allowlist, users can authenticate their connection with an rbac token as a URL parameter. PDB-3159

PuppetDB 7.1.0

Released 9 February 2021

This release contains important security updates. See (PDB-5000).

New features and improvements

  • (PE only) PuppetDB will synchronize with another instance more efficiently now. Previously it would synchronize each entity (factsets, reports, etc.) incrementally, holding open PostgreSQL queries/transactions throughout the entire process, which could take a long time. Those transactions could substantially harm database performance, increase table fragmentation, and if entangled with something like pglogical, increase transient storage requirements (by blocking WAL log reclaimaton). Now instead, the queries should completed up-front, as quickly as possible. PDB-2420
  • Changed the index on certname for report table partitions to be an index on (certname, end_time) to improve performance of certain queries from the PE console. PDB-5003
  • The /metrics/v2 endpoint is now avaialble for external (non-localhost) connections, but requires authentication. This can be configured in a new configuration file auth.conf. PDB-4811
  • The optimize_drop_unused_joins query parameter can now optimize queries that contain a single count function. PDB-4984
  • Added a query bulldozer which is spawned during periodic GC when PuppetDB attempts to drop partitioned tables. The bulldozer will cancel any queries blocking the GC process from getting the AccessExclusiveLocks it needs in order to drop a partition. The PDB_GC_QUERY_BULLDOZER_TIMEOUT_MS setting allows users to disable the query-bulldozer if needed. PDB-4948

Bug fixes

  • Previously an attempt to stop (or restart) PuppetDB might appear to succeed, even though some of its components were actually still running. That’s because PuppetDB wasn’t actually waiting for some of the internal tasks to finish as had been expected. Now PuppetDB should block during stop or restart until all of the components have actually shut down. This issue is a likely contributor to some cases where PuppetDB appeared to restart/reload successfully, but sync never started working again. PDB-4974
  • Various security fixes. (PDB-5000)

PuppetDB 7.0.1

Released 15 December 2020

Bug fixes

  • Puppet Enterprise (PE) only: fixed an issue where PuppetDB wouldn’t exit maintenance mode if garbage collection was disabled and sync was enabled. (PDB-4975)

PuppetDB 7.0.0

Released 19 November 2020

Bug fixes

  • PuppetDB no longer retries queries internally, suppressing some transient connection errors. Instead, it immediately returns an error code. You can restore the previous behavior by setting the PDB_USE_DEPRECATED_QUERY_STREAMING_METHOD environment variable. See the configuration information for further details.

  • PuppetDB won’t hold an extra database connection open while generating query responses. Previously it would create and hold an extra connection open during the initial phase of the response. You can restore the previous behavior by setting the PDB_USE_DEPRECATED_QUERY_STREAMING_METHOD environment variable. See the configuration information for further details.

Upgrading

  • Running PuppetDB with PostgreSQL 9.6 or 10 is no longer supported. Use PostgreSQL 11 or greater instead.
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