rethinkdb/rethinkdb v1.12.0

1.12.0 — The Wizard of Oz

on GitHub

The highlights of this release are a simplified map/reduce, an
experimental ARM port, and a new caching infrastructure.

http://rethinkdb.com/blog/1.12-release/

Compatibility

This release is not compatible with data files from earlier
releases. If you have data you want to migrate from an older version
of RethinkDB, please follow the migration instructions before
upgrading:

http://rethinkdb.com/docs/migration/

There are also some backwards incompatible changes in ReQL, the query
language.

• grouped_map_reduce and group_by were replaced by group
• reduce no longer takes a base argument; use default instead
• table_create no longer takes a cache_size argument
• In JavaScript, the calling convention for run has changed.

New features

• Server
  • Added support for the ARM architecture (#1625)
  • Added per-instance cache quota and removed per-table quotas (#97)
    • Added a --cache-size command line option that sets the cache size in MiB for a single instance
    • Removed the cache_size optional argument for table_create
  • Wrote a new and improved cache (#1642)
  • Added gzip compression to the built-in web server (#1746)
• ReQL
  • merge now accepts functions as an argument (#1345)
  • Added an object command to build objects from dynamic field names (#1857)
  • Removed the optional base argument to reduce (#888)
  • Added a split command to split strings (#1099)
  • Added upcase and downcase commands to change the case of a string (#874)
  • Change how aggregation and grouping is performed (#1096)
    • Removed grouped_map_reduce and groupBy
    • Added group and ungroup
    • Changed the behavior of count, sum and avg and added max and min
• Web UI
  • Display index status and progress bars in the web UI (#1614)

Improved performance

• Server
  • Improved the scalability of meta operations (such as table creation) to allow for more nodes in a cluster (#1648)
  • Changed the CPU sharding factor to 8 for improved multi-core scalability (#1043)
  • Batch sizes now scale better, which speeds up operations like limit (#1786)
  • Tweaked batch sizes to avoid computing unused results (#1962)
  • Improved throttling and LBA garbage collection to avoid stalls in query throughput (#1820)
  • Many optimizations to avoid having the web UI time out when the server is under load (#1183)
  • Improved backfill performance by using batches for sending and inserting data (#1971)
  • Reduced wasteful copies when serializing (#1431)
  • Evaluating queries now yields occasionally to avoid timeouts (#1631)
  • Reduced performance impact of backfilling on other queries (#2071)
• Web UI
  • Improved how the web UI handles large clusters with many tables (#1662)
• Ruby driver
  • Removed inefficient construction-location backtraces (#1843)
• Tests
  • Added automated performance tests (#1806)

Fixed bugs

• Server
  • Improved the code to avoid heartbeat timeout errors when resharding (#1708)
  • Resharding one table no longer makes other tables unavailable (#1751)
  • Improved the blueprint suggester to distribute shards more evenly (#344)
  • Queries from the data explorer are now interruptible (#1888)
  • No longer fail if IPv6 is not available (#1925)
  • Added support for the new v8 scope API (#1510)
  • Coroutine stacks now freed to reduce memory consumption (#1670)
  • Added range get, backfill and secondary index reads to the stats (#660)
  • r.table(...).count() no longer stalls inserts (#1870)
  • Fixed crashes when adding a secondary index (#1621, #1437)
  • Improve the handling of out-of-memory conditions (#2003)
  • Secondary index construction is now reported as a write operation in the stats (#1953)
  • Fixed a crash that occasionally happened during replication (#1389)
  • linux_file_t::set_size no longer makes blocking syscalls (#265)
  • Fixed a crash caught by the unit tests (#1084)
• Command line
  • rethinkdb admin now prints warnings to stderr instead of stdout (#1316)
  • The import and export scripts now display a row count when done (#1659)
  • Added support for log_file and no_direct_io in the init script (#1769, #1892)
  • Do not display a stack trace for regular errors printed by the backup scripts (#2098)
  • rethinkdb export no longer fails when there are no tables (#1904)
  • rethinkdb import no longer tries to parse CSV files as JSON (#2097)
• Web UI
  • No longer display wrong number of rows when a string is returned (#1669)
  • The data explorer now properly closes cursors (#1569)
  • The data explorer now displays empty tables correctly (#1698)
  • Links are now relative so they can be proxied from a subdirectory (#1791)
  • The server time reported by the profiler is now accurate (#1784)
  • Improved the flow for removing dead servers (#1366)
  • No longer lower replicas to 0 if the datacenter is primary (#1834)
  • Now displays consistent availability information (#1756)
  • Fixed a XSS security issue (#2018)
  • Changing the number of acks no longer displays the sharding bar (#2023)
  • The backfilling progress bar doesn't disappear when refreshing the page (#1997)
  • Correctly handle newlines in the data explorer (#2021)
  • Sort the table list in alphabetical order (#1704)
  • Added mouseover text to the query execution time (#1940)
  • The replication status no longer blinks (#2019)
  • Fix inconsistencies in dates caused by DST (#2047)
• Ruby driver
  • Added a missing close method on cursors (#1568)
  • Improved conflict handling (#1814)
  • Use define_method instead of method_missing, which improves compatibility with Sinatra (#1896)
• Python driver
  • Improved the quality of the generated documentation (#1729)
  • Added missing and_ and or_ and a warning for misuse of | and & (#1582)
  • Added support for r.row in eq_join (#1810)
  • Added a detailed error message when brackets are not used properly (#1434)
  • count with an argument now behaves correctly (#1992)
  • Added missing get_field command (#1941)
• JavaScript driver
  • Added support for r.row in eqJoin (#1810)
  • Timeout events on the socket are now handled correctly (#1909)
  • No longer use the deprecated ArrayBuffer API (#1803)
  • Fix backtraces for optional arguments (#1935)
  • Changed the syntax of run (#1890)
  • Exposed the error constructors (#1926)
  • Fixed the string representation of functions (#1919, #1894)
  • Backtrace printing now works correctly for both protobufjs and node-protobuf (#1879)
  • No longer extend Array.prototype (#2112)
• Build
  • ./configure now checks for boost and can fetch it if it is not installed (#1699)
  • The source distribution now includes the v8 source (#1844)
  • Use Python 2 to build v8 (#1873)
  • Improved how the build system fetches and builds external packages, and changed the default to not fetch anything (#1231)

Packaging

• Support for Ubuntu Raring has been dropped (#1924)