updated master for the next release
This commit is contained in:
Evan Tschannen
parent
07f2dde0d5
commit
b8a8f3bd13
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@ -0,0 +1,108 @@
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#############
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Release Notes
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#############
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6.2.0
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=====
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Performance
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-----------
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* A new transaction log spilling implementation is now the default. Write bandwidth and latency will no longer degrade during storage server or remote region failures. `(PR #1731) <https://github.com/apple/foundationdb/pull/1731>`_.
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* Storage servers will locally throttle incoming read traffic when they are falling behind. `(PR #1447) <https://github.com/apple/foundationdb/pull/1477>`_.
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* Use CRC32 checksum for SQLite pages. `(PR #1582) <https://github.com/apple/foundationdb/pull/1582>`_.
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* Added a 96-byte fast allocator, so storage queue nodes use less memory. `(PR #1336) <https://github.com/apple/foundationdb/pull/1336>`_.
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* Improved network performance when sending large packets. `(PR #1684) <https://github.com/apple/foundationdb/pull/1684>`_.
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* Spilled data can be consumed from transaction logs more quickly and with less overhead. `(PR #1584) <https://github.com/apple/foundationdb/pull/1584>`_.
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* Clients no longer talk to the cluster controller for failure monitoring information. `(PR #1640) <https://github.com/apple/foundationdb/pull/1640>`_.
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* Reduced the number of connection monitoring messages between clients and servers. `(PR #1768) <https://github.com/apple/foundationdb/pull/1768>`_.
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* Close connections which have been idle for a long period of time. `(PR #1768) <https://github.com/apple/foundationdb/pull/1768>`_.
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* Each client connects to exactly one coordinator, and at most five proxies. `(PR #1909) <https://github.com/apple/foundationdb/pull/1909>`_.
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* Ratekeeper will throttle traffic when too many storage servers are not making versions durable fast enough. `(PR #1784) <https://github.com/apple/foundationdb/pull/1784>`_.
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* Storage servers recovering a memory storage engine will abort recovery if the cluster is already healthy. `(PR #1713) <https://github.com/apple/foundationdb/pull/1713>`_.
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* Improved how the data distribution algorithm balances data across teams of storage servers. `(PR #1785) <https://github.com/apple/foundationdb/pull/1785>`_.
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* Lowered the priority for data distribution team removal, to avoid prioritizing team removal work over splitting shards. `(PR #1853) <https://github.com/apple/foundationdb/pull/1853>`_.
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* Made the storage cache eviction policy configurable, and added an LRU policy. `(PR #1506) <https://github.com/apple/foundationdb/pull/1506>`_.
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* Improved the speed of recoveries on large clusters at ``log_version >= 4``. `(PR #1729) <https://github.com/apple/foundationdb/pull/1729>`_.
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* Log routers will prefer to peek from satellites at ``log_version >= 4``. `(PR #1795) <https://github.com/apple/foundationdb/pull/1795>`_.
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Fixes
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-----
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* During an upgrade, the multi-version client now persists database default options and transaction options that aren't reset on retry (e.g. transaction timeout). In order for these options to function correctly during an upgrade, a 6.2 or later client should be used as the primary client. `(PR #1767) <https://github.com/apple/foundationdb/pull/1767>`_.
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* If a cluster is upgraded during an ``onError`` call, the cluster could return a ``cluster_version_changed`` error. `(PR #1734) <https://github.com/apple/foundationdb/pull/1734>`_.
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* Data distribution will now pick a random destination when merging shards in the ``\xff`` keyspace. This avoids an issue with backup where the write-heavy mutation log shards could concentrate on a single process that has less data than everybody else. `(PR #1916) <https://github.com/apple/foundationdb/pull/1916>`_.
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* Setting ``--machine_id`` (or ``-i``) for an ``fdbserver`` process now sets ``locality_machineid`` in addition to ``locality_zoneid``. `(PR #1928) <https://github.com/apple/foundationdb/pull/1928>`_.
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* File descriptors opened by clients and servers set close-on-exec, if available on the platform. `(PR #1581) <https://github.com/apple/foundationdb/pull/1581>`_.
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* ``fdbrestore`` commands other than ``start`` required a default cluster file to be found but did not actually use it. `(PR #1912) <https://github.com/apple/foundationdb/pull/1912>`_.
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* Unneeded network connections were not being closed because peer reference counts were handled improperly. `(PR #1768) <https://github.com/apple/foundationdb/pull/1768>`_.
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* Under certain conditions, cross region replication could stall for 10 minute periods. `(PR #1818) <https://github.com/apple/foundationdb/pull/1818>`_.
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* In very rare scenarios, master recovery would restart because system metadata was loaded incorrectly. `(PR #1919) <https://github.com/apple/foundationdb/pull/1919>`_.
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* Ratekeeper will aggressively throttle when unable to fetch the list of storage servers for a considerable period of time. `(PR #1858) <https://github.com/apple/foundationdb/pull/1858>`_.
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Status
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------
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* Added ``run_loop_busy`` to the ``processes`` section to record the fraction of time the run loop is busy. `(PR #1760) <https://github.com/apple/foundationdb/pull/1760>`_.
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* Added ``cluster.page_cache`` section to status. In this section, added two new statistics ``storage_hit_rate`` and ``log_hit_rate`` that indicate the fraction of recent page reads that were served by cache. `(PR #1823) <https://github.com/apple/foundationdb/pull/1823>`_.
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* Added transaction start counts by priority to ``cluster.workload.transactions``. The new counters are named ``started_immediate_priority``, ``started_default_priority``, and ``started_batch_priority``. `(PR #1836) <https://github.com/apple/foundationdb/pull/1836>`_.
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* Remove ``cluster.datacenter_version_difference`` and replace it with ``cluster.datacenter_lag`` that has subfields ``versions`` and ``seconds``. `(PR #1800) <https://github.com/apple/foundationdb/pull/1800>`_.
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* Added ``local_rate`` to the ``roles`` section to record the throttling rate of the local ratekeeper `(PR #1712) <http://github.com/apple/foundationdb/pull/1712>`_.
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* Renamed ``cluster.fault_tolerance`` fields ``max_machines_without_losing_availability`` and ``max_machines_without_losing_data`` to ``max_zones_without_losing_availability`` and ``max_zones_without_losing_data`` `(PR #1925) <https://github.com/apple/foundationdb/pull/1925>`_.
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* ``fdbcli`` status now reports the configured zone count. The fault tolerance is now reported in terms of the number of zones unless machine IDs are being used as zone IDs. `(PR #1924) <https://github.com/apple/foundationdb/pull/1924>`_.
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* ``connected_clients`` is now only a sample of the connected clients, rather than a complete list. `(PR #1902) <https://github.com/apple/foundationdb/pull/1902>`_.
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* Added ``max_protocol_clients`` to the ``supported_versions`` section, which provides a sample of connected clients which cannot connect to any higher protocol version. `(PR #1902) <https://github.com/apple/foundationdb/pull/1902>`_.
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Bindings
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--------
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* Add a transaction size limit as both a database option and a transaction option. `(PR #1725) <https://github.com/apple/foundationdb/pull/1725>`_.
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* Added a new API to get the approximated transaction size before commit, e.g., ``fdb_transaction_get_approximate_size`` in the C binding. `(PR #1756) <https://github.com/apple/foundationdb/pull/1756>`_.
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* C: ``fdb_future_get_version`` has been renamed to ``fdb_future_get_int64``. `(PR #1756) <https://github.com/apple/foundationdb/pull/1756>`_.
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* C: Applications linking to ``libfdb_c`` can now use ``pkg-config foundationdb-client`` or ``find_package(FoundationDB-Client ...)`` (for cmake) to get the proper flags for compiling and linking. `(PR #1636) <https://github.com/apple/foundationdb/pull/1636>`_.
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* Go: The Go bindings now require Go version 1.11 or later.
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* Go: Finalizers could run too early leading to undefined behavior. `(PR #1451) <https://github.com/apple/foundationdb/pull/1451>`_.
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* Added a transaction option to control the field length of keys and values in debug transaction logging in order to avoid truncation. `(PR #1844) <https://github.com/apple/foundationdb/pull/1844>`_.
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Other Changes
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-------------
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* Added the primitives for FDB backups based on disk snapshots. This provides an ability to take a cluster level backup based on disk level snapshots of the storage, tlogs and coordinators. `(PR #1733) <https://github.com/apple/foundationdb/pull/1733>`_.
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* Foundationdb now uses the flatbuffers serialization format for all network messages. `(PR 1090) <https://github.com/apple/foundationdb/pull/1090>`_.
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* Clients will throw ``transaction_too_old`` when attempting to read if ``setVersion`` was called with a version smaller than the smallest read version obtained from the cluster. This is a protection against reading from the wrong cluster in multi-cluster scenarios. `(PR #1413) <https://github.com/apple/foundationdb/pull/1413>`_.
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* Trace files are now ordered lexicographically. This means that the filename format for trace files has changed. `(PR #1828) <https://github.com/apple/foundationdb/pull/1828>`_.
|
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* Improved ``TransactionMetrics`` log events by adding a random UID to distinguish multiple open connections, a flag to identify internal vs. client connections, and logging of rates and roughness in addition to total count for several metrics. `(PR #1808) <https://github.com/apple/foundationdb/pull/1808>`_.
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* FoundationDB can now be built with clang and libc++ on Linux. `(PR #1666) <https://github.com/apple/foundationdb/pull/1666>`_.
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* Added experimental framework to run C and Java clients in simulator. `(PR #1678) <https://github.com/apple/foundationdb/pull/1678>`_.
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* Added new network options for client buggify which will randomly throw expected exceptions in the client. This is intended to be used for client testing. `(PR #1417) <https://github.com/apple/foundationdb/pull/1417>`_.
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* Added ``--cache_memory`` parameter for ``fdbserver`` processes to control the amount of memory dedicated to caching pages read from disk. `(PR #1889) <https://github.com/apple/foundationdb/pull/1889>`_.
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* Added ``MakoWorkload``, used as a benchmark to do performance testing of FDB. `(PR #1586) <https://github.com/apple/foundationdb/pull/1586>`_.
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* ``fdbserver`` now accepts a comma separated list of public and listen addresses. `(PR #1721) <https://github.com/apple/foundationdb/pull/1721>`_.
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* ``CAUSAL_READ_RISKY`` has been enhanced to further reduce the chance of causally inconsistent reads. Existing users of ``CAUSAL_READ_RISKY`` may see increased GRV latency if proxies are distantly located from logs. `(PR #1841) <https://github.com/apple/foundationdb/pull/1841>`_.
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* ``CAUSAL_READ_RISKY`` can be turned on for all transactions using a database option. `(PR #1841) <https://github.com/apple/foundationdb/pull/1841>`_.
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* Added a ``no_wait`` option to the ``fdbcli`` exclude command to avoid blocking. `(PR #1852) <https://github.com/apple/foundationdb/pull/1852>`_.
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* Idle clusters will fsync much less frequently. `(PR #1697) <https://github.com/apple/foundationdb/pull/1697>`_.
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* CMake is now the official build system. The Makefile based build system is deprecated.
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Earlier release notes
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---------------------
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* :doc:`6.1 (API Version 610) </old-release-notes/release-notes-610>`
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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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@ -2,90 +2,27 @@
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Release Notes
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#############
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6.2.0
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7.0.0
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=====
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Performance
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||||
-----------
|
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|
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* A new transaction log spilling implementation is now the default. Write bandwidth and latency will no longer degrade during storage server or remote region failures. `(PR #1731) <https://github.com/apple/foundationdb/pull/1731>`_.
|
||||
* Storage servers will locally throttle incoming read traffic when they are falling behind. `(PR #1447) <https://github.com/apple/foundationdb/pull/1477>`_.
|
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* Use CRC32 checksum for SQLite pages. `(PR #1582) <https://github.com/apple/foundationdb/pull/1582>`_.
|
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* Added a 96-byte fast allocator, so storage queue nodes use less memory. `(PR #1336) <https://github.com/apple/foundationdb/pull/1336>`_.
|
||||
* Improved network performance when sending large packets. `(PR #1684) <https://github.com/apple/foundationdb/pull/1684>`_.
|
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* Spilled data can be consumed from transaction logs more quickly and with less overhead. `(PR #1584) <https://github.com/apple/foundationdb/pull/1584>`_.
|
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* Clients no longer talk to the cluster controller for failure monitoring information. `(PR #1640) <https://github.com/apple/foundationdb/pull/1640>`_.
|
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* Reduced the number of connection monitoring messages between clients and servers. `(PR #1768) <https://github.com/apple/foundationdb/pull/1768>`_.
|
||||
* Close connections which have been idle for a long period of time. `(PR #1768) <https://github.com/apple/foundationdb/pull/1768>`_.
|
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* Each client connects to exactly one coordinator, and at most five proxies. `(PR #1909) <https://github.com/apple/foundationdb/pull/1909>`_.
|
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* Ratekeeper will throttle traffic when too many storage servers are not making versions durable fast enough. `(PR #1784) <https://github.com/apple/foundationdb/pull/1784>`_.
|
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* Storage servers recovering a memory storage engine will abort recovery if the cluster is already healthy. `(PR #1713) <https://github.com/apple/foundationdb/pull/1713>`_.
|
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* Improved how the data distribution algorithm balances data across teams of storage servers. `(PR #1785) <https://github.com/apple/foundationdb/pull/1785>`_.
|
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* Lowered the priority for data distribution team removal, to avoid prioritizing team removal work over splitting shards. `(PR #1853) <https://github.com/apple/foundationdb/pull/1853>`_.
|
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* Made the storage cache eviction policy configurable, and added an LRU policy. `(PR #1506) <https://github.com/apple/foundationdb/pull/1506>`_.
|
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* Improved the speed of recoveries on large clusters at ``log_version >= 4``. `(PR #1729) <https://github.com/apple/foundationdb/pull/1729>`_.
|
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* Log routers will prefer to peek from satellites at ``log_version >= 4``. `(PR #1795) <https://github.com/apple/foundationdb/pull/1795>`_.
|
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|
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Fixes
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-----
|
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|
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* During an upgrade, the multi-version client now persists database default options and transaction options that aren't reset on retry (e.g. transaction timeout). In order for these options to function correctly during an upgrade, a 6.2 or later client should be used as the primary client. `(PR #1767) <https://github.com/apple/foundationdb/pull/1767>`_.
|
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* If a cluster is upgraded during an ``onError`` call, the cluster could return a ``cluster_version_changed`` error. `(PR #1734) <https://github.com/apple/foundationdb/pull/1734>`_.
|
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* Data distribution will now pick a random destination when merging shards in the ``\xff`` keyspace. This avoids an issue with backup where the write-heavy mutation log shards could concentrate on a single process that has less data than everybody else. `(PR #1916) <https://github.com/apple/foundationdb/pull/1916>`_.
|
||||
* Setting ``--machine_id`` (or ``-i``) for an ``fdbserver`` process now sets ``locality_machineid`` in addition to ``locality_zoneid``. `(PR #1928) <https://github.com/apple/foundationdb/pull/1928>`_.
|
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* File descriptors opened by clients and servers set close-on-exec, if available on the platform. `(PR #1581) <https://github.com/apple/foundationdb/pull/1581>`_.
|
||||
* ``fdbrestore`` commands other than ``start`` required a default cluster file to be found but did not actually use it. `(PR #1912) <https://github.com/apple/foundationdb/pull/1912>`_.
|
||||
* Unneeded network connections were not being closed because peer reference counts were handled improperly. `(PR #1768) <https://github.com/apple/foundationdb/pull/1768>`_.
|
||||
* Under certain conditions, cross region replication could stall for 10 minute periods. `(PR #1818) <https://github.com/apple/foundationdb/pull/1818>`_.
|
||||
* In very rare scenarios, master recovery would restart because system metadata was loaded incorrectly. `(PR #1919) <https://github.com/apple/foundationdb/pull/1919>`_.
|
||||
* Ratekeeper will aggressively throttle when unable to fetch the list of storage servers for a considerable period of time. `(PR #1858) <https://github.com/apple/foundationdb/pull/1858>`_.
|
||||
|
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Status
|
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------
|
||||
|
||||
* Added ``run_loop_busy`` to the ``processes`` section to record the fraction of time the run loop is busy. `(PR #1760) <https://github.com/apple/foundationdb/pull/1760>`_.
|
||||
* Added ``cluster.page_cache`` section to status. In this section, added two new statistics ``storage_hit_rate`` and ``log_hit_rate`` that indicate the fraction of recent page reads that were served by cache. `(PR #1823) <https://github.com/apple/foundationdb/pull/1823>`_.
|
||||
* Added transaction start counts by priority to ``cluster.workload.transactions``. The new counters are named ``started_immediate_priority``, ``started_default_priority``, and ``started_batch_priority``. `(PR #1836) <https://github.com/apple/foundationdb/pull/1836>`_.
|
||||
* Remove ``cluster.datacenter_version_difference`` and replace it with ``cluster.datacenter_lag`` that has subfields ``versions`` and ``seconds``. `(PR #1800) <https://github.com/apple/foundationdb/pull/1800>`_.
|
||||
* Added ``local_rate`` to the ``roles`` section to record the throttling rate of the local ratekeeper `(PR #1712) <http://github.com/apple/foundationdb/pull/1712>`_.
|
||||
* Renamed ``cluster.fault_tolerance`` fields ``max_machines_without_losing_availability`` and ``max_machines_without_losing_data`` to ``max_zones_without_losing_availability`` and ``max_zones_without_losing_data`` `(PR #1925) <https://github.com/apple/foundationdb/pull/1925>`_.
|
||||
* ``fdbcli`` status now reports the configured zone count. The fault tolerance is now reported in terms of the number of zones unless machine IDs are being used as zone IDs. `(PR #1924) <https://github.com/apple/foundationdb/pull/1924>`_.
|
||||
* ``connected_clients`` is now only a sample of the connected clients, rather than a complete list. `(PR #1902) <https://github.com/apple/foundationdb/pull/1902>`_.
|
||||
* Added ``max_protocol_clients`` to the ``supported_versions`` section, which provides a sample of connected clients which cannot connect to any higher protocol version. `(PR #1902) <https://github.com/apple/foundationdb/pull/1902>`_.
|
||||
|
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Bindings
|
||||
--------
|
||||
|
||||
* Add a transaction size limit as both a database option and a transaction option. `(PR #1725) <https://github.com/apple/foundationdb/pull/1725>`_.
|
||||
* Added a new API to get the approximated transaction size before commit, e.g., ``fdb_transaction_get_approximate_size`` in the C binding. `(PR #1756) <https://github.com/apple/foundationdb/pull/1756>`_.
|
||||
* C: ``fdb_future_get_version`` has been renamed to ``fdb_future_get_int64``. `(PR #1756) <https://github.com/apple/foundationdb/pull/1756>`_.
|
||||
* C: Applications linking to ``libfdb_c`` can now use ``pkg-config foundationdb-client`` or ``find_package(FoundationDB-Client ...)`` (for cmake) to get the proper flags for compiling and linking. `(PR #1636) <https://github.com/apple/foundationdb/pull/1636>`_.
|
||||
* Go: The Go bindings now require Go version 1.11 or later.
|
||||
* Go: Finalizers could run too early leading to undefined behavior. `(PR #1451) <https://github.com/apple/foundationdb/pull/1451>`_.
|
||||
* Added a transaction option to control the field length of keys and values in debug transaction logging in order to avoid truncation. `(PR #1844) <https://github.com/apple/foundationdb/pull/1844>`_.
|
||||
|
||||
Other Changes
|
||||
-------------
|
||||
|
||||
* Added the primitives for FDB backups based on disk snapshots. This provides an ability to take a cluster level backup based on disk level snapshots of the storage, tlogs and coordinators. `(PR #1733) <https://github.com/apple/foundationdb/pull/1733>`_.
|
||||
* Foundationdb now uses the flatbuffers serialization format for all network messages. `(PR 1090) <https://github.com/apple/foundationdb/pull/1090>`_.
|
||||
* Clients will throw ``transaction_too_old`` when attempting to read if ``setVersion`` was called with a version smaller than the smallest read version obtained from the cluster. This is a protection against reading from the wrong cluster in multi-cluster scenarios. `(PR #1413) <https://github.com/apple/foundationdb/pull/1413>`_.
|
||||
* Trace files are now ordered lexicographically. This means that the filename format for trace files has changed. `(PR #1828) <https://github.com/apple/foundationdb/pull/1828>`_.
|
||||
* Improved ``TransactionMetrics`` log events by adding a random UID to distinguish multiple open connections, a flag to identify internal vs. client connections, and logging of rates and roughness in addition to total count for several metrics. `(PR #1808) <https://github.com/apple/foundationdb/pull/1808>`_.
|
||||
* FoundationDB can now be built with clang and libc++ on Linux. `(PR #1666) <https://github.com/apple/foundationdb/pull/1666>`_.
|
||||
* Added experimental framework to run C and Java clients in simulator. `(PR #1678) <https://github.com/apple/foundationdb/pull/1678>`_.
|
||||
* Added new network options for client buggify which will randomly throw expected exceptions in the client. This is intended to be used for client testing. `(PR #1417) <https://github.com/apple/foundationdb/pull/1417>`_.
|
||||
* Added ``--cache_memory`` parameter for ``fdbserver`` processes to control the amount of memory dedicated to caching pages read from disk. `(PR #1889) <https://github.com/apple/foundationdb/pull/1889>`_.
|
||||
* Added ``MakoWorkload``, used as a benchmark to do performance testing of FDB. `(PR #1586) <https://github.com/apple/foundationdb/pull/1586>`_.
|
||||
* ``fdbserver`` now accepts a comma separated list of public and listen addresses. `(PR #1721) <https://github.com/apple/foundationdb/pull/1721>`_.
|
||||
* ``CAUSAL_READ_RISKY`` has been enhanced to further reduce the chance of causally inconsistent reads. Existing users of ``CAUSAL_READ_RISKY`` may see increased GRV latency if proxies are distantly located from logs. `(PR #1841) <https://github.com/apple/foundationdb/pull/1841>`_.
|
||||
* ``CAUSAL_READ_RISKY`` can be turned on for all transactions using a database option. `(PR #1841) <https://github.com/apple/foundationdb/pull/1841>`_.
|
||||
* Added a ``no_wait`` option to the ``fdbcli`` exclude command to avoid blocking. `(PR #1852) <https://github.com/apple/foundationdb/pull/1852>`_.
|
||||
* Idle clusters will fsync much less frequently. `(PR #1697) <https://github.com/apple/foundationdb/pull/1697>`_.
|
||||
* CMake is now the official build system. The Makefile based build system is deprecated.
|
||||
|
||||
Earlier release notes
|
||||
---------------------
|
||||
* :doc:`6.2 (API Version 620) </old-release-notes/release-notes-620>`
|
||||
* :doc:`6.1 (API Version 610) </old-release-notes/release-notes-610>`
|
||||
* :doc:`6.0 (API Version 600) </old-release-notes/release-notes-600>`
|
||||
* :doc:`5.2 (API Version 520) </old-release-notes/release-notes-520>`
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
<?xml version="1.0"?>
|
||||
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
|
||||
<PropertyGroup>
|
||||
<Version>6.2.1</Version>
|
||||
<PackageName>6.2</PackageName>
|
||||
<Version>7.0.0</Version>
|
||||
<PackageName>7.0</PackageName>
|
||||
</PropertyGroup>
|
||||
</Project>
|
||||
|
|
|
|||
Loading…
Reference in New Issue