cubdb changelog

Changelog History

Page 1

• v2.0.2 Changes

  January 01, 2023

  🔄 Changes:

  • 👻 [fix] Better exception in case of file errors (such as :efbig)

• v2.0.1 Changes

  August 30, 2022

  🔄 Changes:

  • Avoid unnecessary commits in the compaction catching up phase
  • More informative error when running out of disk space
  • Avoid leaking processes when stopping CubDB during a compaction

• v2.0.0 Changes

  June 28, 2022

  • [breaking] The functions get_and_update/3 and get_and_update_multi/3 now return directly result, instead of a {:ok, result} tuple.
  • [breaking] get_and_update_multi/4 does not take an option argument anymore, making it get_and_update_multi/3. The only available option used to be :timeout, which is not supported anymore.
  • [breaking] Remove the :timeout option on select/2. This is part of a refactoring and improvement that moves read operations from an internally spawned Task to the client process. This makes the :timeout option unnecessary: by stopping the process calling CubDB, any running read operation by that process is stopped.
  • Add snapshot/2, with_snapshot/1 and release_snapshot/1 to get zero cost read only snapshots of the database.
  • Add back_up/2 to produce a database backup. The backup process does not block readers or writers, and is isolated from concurrent writes.
  • Add halt_compaction/1 to stop any running compaction operation
  • Add compacting?/1 to check if a compaction is currently running
  • Move read and write operations to the caller process as opposed to the CubDB server process.
  • Improve concurrency of read operations while writing

  ⬆️ Upgrading from v1 to v2

  ⬆️ Upgrading from v1 to v2 requires a few simple code changes:

  1. When calling get_and_update or get_and_update_multi, the return value is not a {:ok, result} tuple anymore, but just result.
  2. get_and_update_multi does not take a fourth option argument anymore. The only available option was :timeout, which was now removed. In case you want to enforce a timeout for the update function, you can use a Task and Task.yield like explained here.
  3. The select function does not support a :timeout option anymore, so it will be ignored if passed. In order to enforce a timeout, you can wrap the select in a Task and use Task.yield like shown here

• v2.0.0-rc.1 Changes

  May 25, 2022

  🔄 Changes from v1.1.0

  ⬆️ See the CHANGELOG.md and the UPGRADING.md files for details.

  • [breaking] The functions CubDB.get_and_update/3,
    CubDB.get_and_update_multi/3, and CubDB.select/2 now return directly
    result, instead of a {:ok, result} tuple.
  • [breaking] CubDB.get_and_update_multi/4 does not take an option argument
    anymore, making it CubDB.get_and_update_multi/3. The only available option
    ⏱ used to be :timeout, which is not supported anymore.
  • 🚚 [breaking] Remove the :timeout option on CubDB.select/2. This is part of
    🔨 a refactoring and improvement that moves read operations from an internally
    ⏱ spawned Task to the client process. This makes the :timeout option
    unnecessary: by stopping the process calling CubDB, any running read
    operation by that process is stopped.
  • [breaking] CubDB.select/2 now returns a lazy stream that can be used with
    functions in Enum and Stream. This makes the :pipe and :reduce
    🚚 options unnecessary, so those options were removed.
  • ➕ Add CubDB.snapshot/2, CubDB.with_snapshot/1 and
    🚀 CubDB.release_snapshot/1 to get zero cost read-only snapshots of the
    database. The functions in CubDB.Snapshot allow to read from a snapshot.
  • ➕ Add CubDB.transaction/2 to perform multiple write (and read) operations in
    a single atomic transaction. The functions in CubDB.Tx allow to read and
    write inside a transaction.
  • ➕ Add CubDB.back_up/2 to produce a database backup. The backup process does
    not block readers or writers, and is isolated from concurrent writes.
  • ➕ Add CubDB.halt_compaction/1 to stop any running compaction operation
  • ➕ Add CubDB.compacting?/1 to check if a compaction is currently running
  • 🚚 Move read and write operations to the caller process as opposed to the
    CubDB server process.
  • 👌 Improve concurrency of read operations while writing

• v1.1.0 Changes

  October 14, 2021

  🔄 Changes:

  • ➕ Add clear/1 function to atomically delete all entries in the database

• v1.0.0 Changes

  June 24, 2021

  👀 See the CHANGELOG for details on changes

• v1.0.0-rc.9 Changes

  April 19, 2021

  🔄 Changes:

  • [fix] fix process (and file descriptor) leak upon compaction

• v1.0.0-rc.8 Changes

  March 08, 2021

  🔄 Changes:

  • ✂ Remove default GenServer timeouts

• v1.0.0-rc.7 Changes

  February 04, 2021

  🔄 Changes:

  • put_and_delete_multi and put_multi have no caller timeout, consistently with the other functions.

• v1.0.0-rc.10 Changes

  April 25, 2021

  🔄 Changes

  • [fix] Fix CubDB.cubdb_file?/1 regexp, making it stricter

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