tarantool-1.7.4 changelog

1.7.4-changelog.md

Date: 2017-05-11

Tag: 1.7.4.

1.7.3 is a release candidate in the 1.7 series. It is backward compatible with 1.6 in binary data layout, client-server protocol and replication protocol.

Incompatible changes

• UPSERT by secondary keys was banned to avoid unclear semantics. #2226
• require('log').logger_pid() was renamed to require('log').pid(). #2917
• A default value for memtx_memory (slab_alloc_arena) was reduced from 1GB to 256MB. #2042
• box.cfg() options were changed to harmonize with Vinyl:
  • snap_dir => memtx_dir
  • slab_alloc_arena => memtx_memory, changed to bytes
  • slab_alloc_minimal => memtx_min_tuple_size
  • slab_alloc_maximal => memtx_max_tuple_size
  • slab_alloc_factor => deprecated, is not actual in 1.7.x
  • snapshot_count => checkpoint_count
  • snapshot_period => checkpoint_interval
  • rows_per_wal => wal_max_size
  • logger => log
  • logger_nonblock => log_nonblock
  • logger_level => log_level
  • replication_source => replication
  • panic_on_snap_error = true and panic_on_wal_error = true => force_recovery = false

---

See the full list of incompatible changes since 1.6.9 in 1.7.1 and 1.7.2, 1.7.2 and 1.7.2 release notes.

Functionality added or changed

• Substantial progress on stabilizing the Vinyl storage engine:

  • Fix most known crashes and bugs with bad results.
  • Switch to use XLOG/SNAP format for all data files.
  • Enable ZStandard compression for all data files.
  • Squash UPSERT operations on the fly and merge hot keys using a background fiber.
  • Significantly improve the performance of index:pairs() and index:count().
  • Remove unnecessary conflicts from transactions.
  • In-memory level was mostly replaced by memtx data structures.
  • Specialized allocators are used in most places.

  We're still actively working on Vinyl and plan to add multi-level compaction and improve the performance of secondary keys in 1.7.4. This implies a data format change which we plan to implement before 1.7 becomes generally available.

• Support for DML requests for space:on_replace() triggers #587.

• UPSERT can be used with the empty list of operations #1854.

• Lua functions to manipulate environment variables. #1718.

• Lua library to read Tarantool snapshots and xlogs #1782.

• New play and cat commands in tarantoolctl #1861.

• Improve support for the large number of active network clients. #1892.

• Support for space:pairs(key, iterator-type) syntax #1875.

• Automatic cluster bootstrap now also works without authorization #1589

• Replication retries to connect to master indefinitely #1511

• Temporary spaces now work with box.cfg { read_only = true } #1378.

• The maximum length of space names increased to 64 bytes (was 32) #2008.

Bugs fixed

• Dozens of bugfixes for Vinyl engine, see [GitHub Issues](https://github.com/tarantool/tarantool/issues?q=milestone%3A1.7.3 label%3Avinyl) for details
• Invalid handling of map16 format in mp_check() CVE-2016-9036 #1991.
• Out of bounds access in xrow_header_decode() CVE-2016-9037 #1992.
• Fix calculation of periods in snapshot daemon. #1912.
• index:count() returns wrong results for BITSET index 1896.
• Tarantool fails to parse xlog metadata if it contains too large vclock #1940.
• Crash on invalid box.cfg { replication_source = "" } configuration #1962.
• Use after free in box.error() #1955.
• A dead net.box connection is not closed on the :close() call #1904.
• Crash after failed fsync() in WAL #1902.
• Proper propagation of I/O errors in box.snapshot() #1858.
• Segfault if using net.box before box.cfg start #1814.
• Wrong schema_id in server responses #1808.
• Crash in tarantoolctl connect on TAB key #1802.
• SIGSEGV in fd_reify on armv7 #1799.
• JOIN/SUBSCRIBE must fail if master has wal_mode = "none" #1233.
• Could NOT find OpenSSL on macOS #1852.

A full list of fixed bugs is available on GitHub.