wbtiger
/
foundationdb
mirror of https://github.com/apple/foundationdb.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1931 from alexmiller-apple/release-notes-6.2 

Added release notes for myself and Evan.
This commit is contained in:
Alex Miller 2019-07-30 17:31:40 -07:00 committed by GitHub
parent 69e7ed3e53 267a0295d7
commit fb6f4be72f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
documentation/sphinx/source/release-notes.rst
View File

@ -7,13 +7,11 @@ Release Notes
Features
--------
* Improved team collection for data distribution that builds a balanced number of teams per server and gurantees that each server has at least one team. `(PR #1785) <https://github.com/apple/foundationdb/pull/1785>`_.
* Added the option to have data distribution FetchKeys to run at a lower priority by setting the knob ``FETCH_KEYS_LOWER_PRIORITY`` `(PR #1791) <https://github.com/apple/foundationdb/pull/1791>`_.
* CMake is now our official build system. The Makefile based build system is deprecated.
* Added local ratekeeper, to throttle reads at a per-storage-process level. `(PR #1447) <https://github.com/apple/foundationdb/pull/1477>`_.
* FDB backups based on disk snapshots, provides an ability to take cluster level backup based on disk level snapshots of storage, tlogs and coordinators. `(PR #1733) <https://github.com/apple/foundationdb/pull/1733>`_.
Performance
@ -22,6 +20,10 @@ Performance
* Use CRC32 checksum for SQLite pages. `(PR #1582) <https://github.com/apple/foundationdb/pull/1582>`_.
* Added a 96-byte fast allocator, so storage queue nodes use less memory. `(PR #1336) <https://github.com/apple/foundationdb/pull/1336>`_.
* Handle large packets better. `(PR #1684) <https://github.com/apple/foundationdb/pull/1684>`_.
* 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>`_.
* Log routers will prefer to peek from satellites at ``log_version >= 4``. `(PR #1795) <https://github.com/apple/foundationdb/pull/1795>`_.
* Spilled data can be consumed from transaction logs more quickly and with less overhead. `(PR #1584) <https://github.com/apple/foundationdb/pull/1584>`_.
* Improved the speed of recoveries on large clusters. `(PR #1729) <https://github.com/apple/foundationdb/pull/1729>`_.
Fixes
-----
@ -31,6 +33,7 @@ Fixes
* 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>`_.
* Do not set doBuildTeams in StorageServerTracker unless a storage server's interface changes, in order to avoid unnecessary work. `(PR #1779) <https://github.com/apple/foundationdb/pull/1779>`_.
* 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>`_.
* 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>`_.
Status
------
@ -68,6 +71,7 @@ Other Changes
* Added two knobs ``LOAD_BALANCE_ZONE_ID_LOCALITY_ENABLED`` and ``LOAD_BALANCE_DC_ID_LOCALITY_ENABLED`` allowing locality-based decision-making to be toggled on/off during load balancing. `(PR #1820) <https://github.com/apple/foundationdb/pull/1820>`_.
* 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>`_.
* ``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>`_.
Earlier release notes
---------------------