72 lines
5.9 KiB
ReStructuredText
72 lines
5.9 KiB
ReStructuredText
#############
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Release Notes
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#############
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6.1.0
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=====
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Features
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--------
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* Improved replication mechanism, a new hierarchical replication technique that further significantly reduces the frequency of data loss events even when multiple machines (e.g., fault-tolerant zones in the current code) permanently fail at the same time. `(PR #964) <https://github.com/apple/foundationdb/pull/964>`.
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* Get read version, read, and commit requests are counted and aggregated by server-side latency in configurable latency bands and output in JSON status. `(PR #1084) <https://github.com/apple/foundationdb/pull/1084>`_
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* Added configuration option to choose log spilling implementation `(PR #1160) <https://github.com/apple/foundationdb/pull/1160>`_
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* Added configuration option to choose log system implementation `(PR #1160) <https://github.com/apple/foundationdb/pull/1160>`_
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* Batch priority transactions are now limited separately by ratekeeper and will be throttled at lower levels of cluster saturation. This makes it possible to run a more intense background load at saturation without significantly affecting normal priority transactions. It is still recommended not to run excessive loads at batch priority. `(PR #1198) <https://github.com/apple/foundationdb/pull/1198>`_
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* Restore now requires the destnation cluster to be specified explicitly to avoid confusion. `(PR #1240) <https://github.com/apple/foundationdb/pull/1240>`_
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* Restore target version can now be specified by timestamp if the original cluster is available. `(PR #1240) <https://github.com/apple/foundationdb/pull/1240>`_
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Performance
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-----------
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* Java: Succesful commits and range reads no longer create ``FDBException`` objects to reduce memory pressure. `(Issue #1235) <https://github.com/apple/foundationdb/issues/1235>`_
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Fixes
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-----
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* Python: Creating a ``SingleFloat`` for the tuple layer didn't work with integers. `(PR #1216) <https://github.com/apple/foundationdb/pull/1216>`_
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Status
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------
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Bindings
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--------
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* The API to create a database has been simplified across the bindings. All changes are backward compatible with previous API versions, with one exception in Java noted below. `(PR #942) <https://github.com/apple/foundationdb/pull/942>`_
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* C: ``FDBCluster`` objects and related methods (``fdb_create_cluster``, ``fdb_cluster_create_database``, ``fdb_cluster_set_option``, ``fdb_cluster_destroy``, ``fdb_future_get_cluster``) have been removed. `(PR #942) <https://github.com/apple/foundationdb/pull/942>`_
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* C: Added ``fdb_create_database`` that creates a new ``FDBDatabase`` object synchronously and removed ``fdb_future_get_database``. `(PR #942) <https://github.com/apple/foundationdb/pull/942>`_
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* Python: Removed ``fdb.init``, ``fdb.create_cluster``, and ``fdb.Cluster``. ``fdb.open`` no longer accepts a ``database_name`` parameter. `(PR #942) <https://github.com/apple/foundationdb/pull/942>`_
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* Java: Deprecated ``FDB.createCluster`` and ``Cluster``. The preferred way to get a ``Database`` is by using ``FDB.open``, which should work in both new and old API versions. `(PR #942) <https://github.com/apple/foundationdb/pull/942>`_
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* Java: Removed ``Cluster(long cPtr, Executor executor)`` constructor. This is API breaking for any code that has subclassed the ``Cluster`` class and is not protected by API versioning. `(PR #942) <https://github.com/apple/foundationdb/pull/942>`_
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* Ruby: Removed ``FDB.init``, ``FDB.create_cluster``, and ``FDB.Cluster``. ``FDB.open`` no longer accepts a ``database_name`` parameter. `(PR #942) <https://github.com/apple/foundationdb/pull/942>`_
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* Golang: Deprecated ``fdb.StartNetwork``, ``fdb.Open``, ``fdb.MustOpen``, and ``fdb.CreateCluster`` and added ``fdb.OpenDatabase`` and ``fdb.MustOpenDatabase``. The preferred way to start the network and get a ``Database`` is by using ``FDB.OpenDatabase`` or ``FDB.OpenDefault``. `(PR #942) <https://github.com/apple/foundationdb/pull/942>`_
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* Flow: Deprecated ``API::createCluster`` and ``Cluster`` and added ``API::createDatabase``. The preferred way to get a ``Database`` is by using ``API::createDatabase``. `(PR #942) <https://github.com/apple/foundationdb/pull/942>`_
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* Golang: Added ``fdb.Printable`` to print a human-readable string for a given byte array. Add ``Key.String()``, which converts the ``Key`` to a ``string`` using the ``Printable`` function. `(PR #1010) <https://github.com/apple/foundationdb/pull/1010>`_
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* Python: Python signal handling didn't work when waiting on a future. In particular, pressing Ctrl-C would not successfully interrupt the program. `(PR #1138) <https://github.com/apple/foundationdb/pull/1138>`_
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Other Changes
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-------------
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Earlier release notes
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---------------------
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* :doc:`6.0 (API Version 600) </old-release-notes/release-notes-600>`
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* :doc:`5.2 (API Version 520) </old-release-notes/release-notes-520>`
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* :doc:`5.1 (API Version 510) </old-release-notes/release-notes-510>`
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* :doc:`5.0 (API Version 500) </old-release-notes/release-notes-500>`
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* :doc:`4.6 (API Version 460) </old-release-notes/release-notes-460>`
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* :doc:`4.5 (API Version 450) </old-release-notes/release-notes-450>`
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* :doc:`4.4 (API Version 440) </old-release-notes/release-notes-440>`
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* :doc:`4.3 (API Version 430) </old-release-notes/release-notes-430>`
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* :doc:`4.2 (API Version 420) </old-release-notes/release-notes-420>`
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* :doc:`4.1 (API Version 410) </old-release-notes/release-notes-410>`
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* :doc:`4.0 (API Version 400) </old-release-notes/release-notes-400>`
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* :doc:`3.0 (API Version 300) </old-release-notes/release-notes-300>`
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* :doc:`2.0 (API Version 200) </old-release-notes/release-notes-200>`
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* :doc:`1.0 (API Version 100) </old-release-notes/release-notes-100>`
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* :doc:`Beta 3 (API Version 23) </old-release-notes/release-notes-023>`
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* :doc:`Beta 2 (API Version 22) </old-release-notes/release-notes-022>`
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* :doc:`Beta 1 (API Version 21) </old-release-notes/release-notes-021>`
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* :doc:`Alpha 6 (API Version 16) </old-release-notes/release-notes-016>`
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* :doc:`Alpha 5 (API Version 14) </old-release-notes/release-notes-014>`
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