Skip to content
Newer
Older
100644 39 lines (32 sloc) 2.79 KB
4c4dec7 @antirez release notes added
antirez authored
1 Welcome to Redis 2.1.9 (2.2 Release Candidate 1)
2
3 This is the first Release Candidate of Redis 2.2, in our experience the
4 server is very stable, but in the latest weeks we rewrote part of the internals
5 in order to use a lot less memory while the saving child process is performing
6 a BGREWRITEAOF or a BGSAVE, so handle with care for a couple of weeks.
7
9fecc40 @antirez release notes, info on 2.0 compatibility
antirez authored
8 Oh, and I've some very good news: the majority of apps can work if you simply replace 2.2 in your old 2.0 environment. I can't think of any breakage.
9
4c4dec7 @antirez release notes added
antirez authored
10 WHAT'S NEW IN REDIS 2.2.x
11
12 * Specially encoded data types, small lists and sets can now use up to an order of magnitude less memory.
13 * VM partial rewrite for code cleaness and memory usage.
14 * Change to the implementation of the top level dictionary for better memory efficienty.
15 * redis-cli is hugely improved: tab completion, inline help (Thanks to TJ Holowaychuk), raw output, rewritten using the new hiredis C library.
16 * Networking internals rewritten for efficiency. You can expect LRANGE and similar commands to be at least 10 times faster.
17 * Most read only commands are now copy-on-write friendly, this means that Redis will use little memory when a saving child is active and the parent process is mostly stressed by read queries.
18 * Non blocking replication even from the point of view of the slave, with configurable behavior about what to do when the link is disconnected. You can select if serving old data or replying with an error.
19 * Check-and-set (CAS) transactions with the new WATCH command.
20 * Now write operations work against keys with an EXPIRE set! Imagine the possibilities.
21 * New maxmemory eviction policies. It is possible to select among LRU, farest TTL expire, and other algorithms, and if when the memory limit is reached only keys with an expire set or all the keys should be expired.
51716cb @antirez added more info in the release notes
antirez authored
22 * SETBIT / GETBIT / SETRANGE / GETRANGE / STRLEN. Now your strings are your arrays!
4c4dec7 @antirez release notes added
antirez authored
23 * Syslog support (Thanks to Jonah H. Harris)
24 * Unix domain socket support.
25 * New List related functions LINSERT, LPUSHX, RPUSHX (Thanks to Robey Pointer)
26 * BRPOPLPUSH (Thanks to Michel Martens and Damian Janowski)
27 * Much more interesting informations in the INFO output.
28 * Sorted sets are now less memory hungry.
29 * Non blocking loading of .rdb / AOF file on startup, with process information in the INFO output.
30 * Now Redis has a clean, powerful, supported C library: hiredis.
0898aa4 @antirez typo fixed
antirez authored
31 * Code layout completely new, the 2.0.x huge redis.c file is now splitted in many parts.
4c4dec7 @antirez release notes added
antirez authored
32 * Redis-benchmark rewritten to be faster and in order to use hiredis as well.
33 * Endless other CPU optimizations and bugs fixed.
34
0898aa4 @antirez typo fixed
antirez authored
35 Credits: Where not specified the implementation and design are done by Salvatore Sanfilippo and Pieter Noordhuis. Thanks to VMware for making all this possible. Also many thanks to all the other contributors and the amazing community we have.
59aee55 @antirez added the mandatory Cheers in the release notes
antirez authored
36
37 Cheers,
38 Salvatore
Something went wrong with that request. Please try again.