<ChangeLog>
--[ Redis 3.0.0 ] Release date: 1 Apr 2015
Changes between RC6 and 3.0.0 stable:
>> General changes
* Fixes to diskless replication. (Oran Agra)
* Test for BLPOP replication on role change. (Salvatore Sanfilippo)
* prepareClientToWrite() error handling improvements. (Salvatore Sanfilippo)
* Remove dict.c no longer used function. (Salvatore Sanfilippo)
>> Cluster changes
None
>> Sentinel changes
None
--[ Redis 3.0.0 RC6 (version 2.9.106) ] Release date: 24 mar 2015
Upgrade urgency: HIGH because of bugs related to Redis Custer and replication.
This is the 6th release candidate of Redis 3.0.0. This release fixes important
issues discovered during stress testing, and implements safest behavior
for blocking operations during clients reshardings, and a new much needed
functionality of Redis Cluster manual failovers.
In order to fix certain bugs quite a bit of refactoring was needed which
is usually non advisabble in a Release Candidate, but needed in order to
end with a clean fix.
>> General changes
* [FIX] Redis (non clustered & clustered) replication bug involving blocking
operations: see issue #2473. (Salvatore Sanfilippo)
>> Cluster changes
* [FIX] clientsArePaused() fix crashing the old master during manual failover.
(Salvatore Sanfilippo)
* [FIX] Lua scripts replication in Redis Cluster was totally broken.
(Salvatore Sanfilippo)
* [FIX] Redirect clients blocked into list operations when the hash slot
they are blocked into is migrated to another instance or the cluster
state turns into "fail". (Salvatore Sanfilippo)
* [NEW] TAKEOVER option for CLUSTER FAILOVER implemented. It is now possible
to fix a cluster manually in the minority side of the partition, for
example in order to allow for multi DC setups & recovery.
(Salvatore Sanfilippo)
>> Sentinel changes
No changes in Sentinel.
--[ Redis 3.0.0 RC5 (version 2.9.105) ] Release date: 20 mar 2015
Upgrade urgency: Moderate for Redis Cluster users, low otherwise.
This is the 5th release candidate of Redis 3.0.0, released in order to fix
a moderate bug in Redis Cluster. This RC does not shift in the future the
Redis 3.0.0 final release which is scheduled in a few days (we are in the
process of finishing the documentation for Redis Cluster).
>> General changes
* [FIX] Fix LATENCY command crash. (Salvatore Sanfilippo, thx to Ingmar)
* [FIX] Config: missing activerehashing option support in CONFIG SET added.
(Salvatore Sanfilippo, thx to Bill Anderson)
* [FIX] Fix for backtrace generation issue. (Mariano Pérez Rodríguez, Matt Stancliff, Salvatore Sanfilippo)
* [NEW] Redis-cli --latency-dist backported from unstable.
(Salvatore Sanfilippo)
>> Cluster changes
* [FIX] Avoid redundant SELECT in MIGRATE. (Tommy Wang, Salvatore Sanfilippo)
* [FIX] More robust slave check in CLUSTER REPLICATE. (Salvatore Sanfilippo)
* [FIX] Fixed possible Redis Cluster node crash due to wrong separation of
concerns between getNodeByQuery() and Cluster global state update
fnuction. (Salvatore Sanfilippo, thx to Ingmar)
* [NEW] Add command CLUSTER MYID to easily featch instance ID. (Michel Martens)
>> Sentinel changes
* [NEW] Support for CLIENT command added. It was missing in the command table.
(Leandro López)
</ChangeLog>
<ChangeLog>
--[ Redis 3.0.0 RC2 (version 2.9.102) ] Release date: 13 jan 2014
Upgrade urgency: LOW.
This is the second release candidate of Redis Cluster. The major changes
are back porting of things implemented into the unstable branch while
this was still possible (with the new development model adopted only
bug fixes will be merged in the future).
RC2 also fixes a few Redis Cluster non critical bugs.
>> General changes
* [FIX] A number of minor bug fixes.
* [NEW] Diskless replication backportede.
* [NEW] Lua bitops and updated cmsgpack backported.
* [NEW] Transparent Huge Pages warnings and reporting backported.
>> Cluster changes
* [FIX] Fix PUBLISH cluster bus message count field.
* [FIX] It is no longer possible to write outside node hash slots using Lua.
* [FIX] Valgrind warnings (no actual bugs).
* [FIX] Less strict in acceptiong myself->ip if it's not populated.
* [NEW] Better testing of Lua scripts.
>> Sentinel changes
No changes to Sentinel.
</ChangeLog>
<ChangeLog>
--[ Redis 3.0.0 RC1 (version 2.9.101) ] Release date: 9 oct 2014
This is the first release candidate of Redis Cluster.
>> General changes
* [FIX] An very large number of small fixes, old and new, merged in the
context of a the issue #1906. Please see the issue page here
for exact credits: https://github.com/antirez/redis/pull/1906
of each commit. (Matt Stancliff and many others).
* [FIX] SAVE is no longer propagated to AOF / slaves.
* [FIX] GETRANGE test no longer fails for 32 bit builds (Matt Stancliff).
* [FIX] Limit SCAN latency when the hash table is in an odd state (very few
populted buckets because rehashing is in progress). (Xiaost and
Salvatore Sanfilippo)
* [NEW] Redis is now able to load truncated AOF files without requiring a
redis-check-aof utility run. The default now is to load truncated
(but apparently not corrupted) AOFs, you can change this in redis.conf.
(Salvatore Sanfilippo).
* [NEW] DEBUG POPULATE two args form implemented. It is now possible to
call it with DEBUG POPULATE <count> <prefix>. Default prefix
is "key:" as usually.
* [NEW] INCR: Modify incremented object in-place when possible. This results
in speed improvements + possibly better memory locality.
>> Cluster changes
* [FIX] Cluster: claim ping_sent time even if we can't connect.
* [FIX] redis-trib should not abort easily on connection issues.
* [FIX] Cluster test: less console-spammy resharding test.
* [FIX] Fix logic to detect we are among a minority.
* [FIX] Process gossip section only for known nodes.
* [NEW] Redis Cluster is stable and tested enough, there is a clear MVP,
so it was promoted from beta to stable.
* [NEW] New unit 09, Pub/Sub across the cluster.
* [NEW] New unit 08, update messages.
* [NEW] New cluster option to work with partial slots coverage.
* [NEW] More chatty cluster slaves when failover is stalled. They log reason
with rate limiting, only when reason changes or a given time
has elapsed.
>> Sentinel changes
* [FIX] Sentinel critical bug fixed: the absolute majority was computed in a
wrong way because of a programming error. Now the implementation does
what the specification says and the majority to authorize a failover
(that should not be confused with the ODOWN quorum) is the majority of
*all* the Sentinels ever seen for a given master, regardless of their
current state.
* [FIX] Resolved a memory leak in the hiredis library causing a memory leak
in Redis Sentinel when a monitored instance or another Sentinel is
unavailable. Every reconnection attempt will leak a small amount of
memory, but in the long run the process can reach a considerable size.
* [NEW] Sentinel: ability to announce itself with an arbitrary IP/port to work
in the context of natted networks. However this is probably still
not enough since there is no equivalent mechanism for slaves listed
in the master INFO output. (Dara Kong and Salvatore Sanfilippo)
</ChangeLog>
<ChangeLog>
--[ Redis 3.0.0 Beta 8 (version 2.9.57) ] Release date: 29 jul 2014
This is the 8th beta of Redis 3.0.0.
>> General changes
* [FIX] Solaris compilation issues. (Matt Stancliff, Salvatore Sanfilippo)
* [FIX] Allow shared integer objects if maxmemory policy is not LRU based.
(Salvatore Sanfilippo)
* [FIX] PFSELFTEST: less false positives. (Salvatore Sanfilippo)
* [FIX] Fail SYNC if background save child aborted due to a signal. (Yossi
Gottlieb)
* [NEW] Latency framework backported from unstable branch. (Salvatore
Sanfilippo)
* [NEW] AOF rewrite improved for latency. (Salvatore Sanfilippo)
* [NEW] Pub/Sub PING. (Salvatore Sanfilippo)
* [NEW] Much faster ZUNIONSTORE. (Kyle Hubert, Salvatore Sanfilippo)
* [NEW] Faster ll2string() implementation. (Salvatore Sanfilippo)
>> Cluster changes
* [FIX] CLUSTER RESET: Flush slave dataset on reset. (Salvatore Sanfilippo)
* [FIX] Replica migration: don't migrate to masters that never had slaves
in the past, but only to masters that remained orphaned after
failure events. (Salvatore Sanfilippo)
* [NEW] redis-trib: allow to reshard in non-interactive way. (Salvatore
Sanfilippo)
* [NEW] Cluster test: unit 04, check consistency during resharding. (Salvatore
Sanfilippo)
* [NEW] Cluster test: unit 05, slave selection. (Salvatore Sanfilippo)
* [NEW] Cluster test: unit 06, slaves with stale data can't failover. (Salvatore
Sanfilippo)
* [NEW] Cluster test: unit 07, replicas migration. (Salvatore Sanfilippo)
>> Sentinel changes
* No Sentinel changes in this release.
--[ Redis 3.0.0 Beta 7 (version 2.9.56) ] Release date: 30 jun 2014
This is the 7th beta of Redis 3.0.0.
>> General changes
* [FIX] Scripting fixes backported from unstable, see Redis 2.8.12 changelog
for more info. (Salvatore Sanfilippo)
* [FIX] Cancel SHUTDOWN if initial AOF is being written. (Matt Stancliff)
* [NEW] New command: COMMAND, for commands introspection (Matt Stancliff &
Salvatore Sanfilippo)
* [NEW] hiredis: Update to latest version. (Matt Stancliff)
* [NEW] Jemalloc updated to 3.6.0. (Salvatore Sanfilippo)
>> Cluster changes
* [FIX] Cluster: clear NOADDR flag when updating node address.
(Salvatore Sanfilippo)
* [NEW] New CLUSTER SLOTS command to simplify Cluster clients operations.
(Matt Stancliff)
* [NEW] More Cluster tests. (Salvatore Sanfilippo)
* [NEW] Log when failover authorization are granted / denied.
(Salvatore Sanfilippo)
>> Sentinel changes
* [FIX] A few Sentinel bugs fixed and improvements, see Redis 2.8.12
changelog for more info. (Salvatore Sanfilippo & Matt Stancliff)
* [NEW] New Sentinel-Client handshake protocol, ROLE command, CLIENT KILL,
all backported to 3.0 branch. (Salvatore Sanfilippo)
</ChangeLog>
Fix lua/luajit-specific extra patches.
Stagefy.
<ChangeLog>
--[ Redis 3.0.0 Beta 5 (version 2.9.54) ] Release date: 26 may 2014
This is the 5th beta of Redis 3.0.0. It does not include any real
worthwhile change (just three days passed since the previous beta), but
fixes two stupid bugs preventing cluster tests to pass.
--[ Redis 3.0.0 Beta 4 (version 2.9.53) ] Release date: 23 may 2014
This is the fourth beta of Redis 3.0.0.
>> General changes
* [NEW] Scripting engine performances improvements.
* [NEW] Log format slightly changed to report current node role.
* [FIX] Correct the HyperLogLog stale cache flag to prevent unnecessary
computation.
>> Cluster changes
* [NEW] redis-trib: ability to import data from standalone Redis instances.
* [NEW] redis-trib: "fix" subcommand much better at fixing errors.
* [NEW] CLUSTER FAILOVER FORCE implemented.
* [NEW] CLUSTER RESET implemented, it is now possible to completely reset
nodes and create a new cluster without restarting anything.
* [NEW] Slave validity factor (max estimated data age to still failover)
is now under the control of the user, and can be configured via
redis.conf or CONFIG SET. Option name cluster-slave-validity-factor.
* [NEW] Cluster test: failure detection and failover initial tests.
* [NEW] CLUSTER MEET: better error messages when address is invalid.
* [NEW] Bulk-accept new Cluster nodes in the Cluster bus instead of
performing just a single accept() per event fired.
* [FIX] Bypass data_age check for manual failovers.
* [FIX] Fixed data_age computation / check integer overflow.
* [FIX] Various fixes to Tcl client.tcl Redis Cluster client used in tests.
* [FIX] Better handling of stolen slots.
* [FIX] Don't accept cluster bus connections during startup.
>> Sentinel changes
* [NEW] Generate +config-update-from event when a new config is received.
* [NEW] Log when a failover will be re-attempted again.
* [FIX] Sentinel: Add "dir /tmp" directive in example sentinel.conf.
--[ Redis 3.0.0 Beta 3 (version 2.9.52) ] Release date: 5 may 2014
This is the third beta of Redis 3.0.0.
>> General changes
* [NEW] New data structure: the HyperLogLog (see 2.8 release notes).
* [NEW] Lexicograhical range queries in sorted sets (see 2.8 release notes).
* [NEW] LRU algorithm precision greatly improved.
* [FIX] Redis is now much more responsive to reply with LOADING / BUSY errors.
>> Cluster changes
* [NEW] Cluster testing framework and initial tests.
* [NEW] Cluster epochs collision resolution (make Redis Cluster more resilient
to admin and programming errors).
* [NEW] Persist / fsync some global state to ensure correct crash-recovery
semantics.
* [NEW] New command introduced: CLUSTER SET-CONFIG-EPOCH, still not used
by redis-trib. Will be used to speedup the assignment of unique
epochs to different nodes at cluster creation time. For now this is
handled as a side effect of the cluster epochs collision resolution.
* [FIX] Different fixes to redis-trib cluster creation.
* [FIX] Fix an error in the CLUSTER NODES output for nodes slots.
>> Sentinel changes
* [NEW] Sentinels are now able to send update messages in a peer-to-peer
fashion even if no Redis instances are available. Now the Sentinel
liveness property that the most updated configuration in a given
partition is propagated to all the Sentinels is extended to partitions
without reachable instances.
* [NEW] Sentinel safety properties are now ensured in a crash-recovery system
model since some state is persisted on disk before replying to other
nodes, and reloaded at startup.
* [NEW] Sentinel now uses CLIENT SETNAME so that it is easy to identify
Sentinels using CLIENT LIST among other clients.
* [NEW] Sentinel failure detection and reconnection code improved.
</ChangeLog>
<ChangeLog>
# UPGRADE URGENCY: MODERATE for Redis and Sentinel.
* [FIX] Makefile compatibility with non common make variants improved.
* [FIX] SDIFF crash in very unlikely to trigger state fixed.
* [FIX] Config rewriting fixed: don't wipe options unknown to the rewrite
process.
* [FIX] Set TCP port to 0 works again to disable TCP networking.
* [FIX] Fixed replication with old Redis instances as masters by not
sending REPLCONF ACK to them.
* [FIX] Fix keyspace notifications rewrite and CONFIG GET output.
* [FIX] Fix RESTORE TTL handling in 32 bit systems (32 bit overflow).
* [NEW] Sentinel now has a run time configuration API.
* [NEW] Log when we lost connection with master or slave.
* [NEW] When instance is turned from slave to master now inherits the
old master replication offset when possible. This improves the
Sentinel failover procedure.
</ChangeLog>
Disable debug flags.
<ChangeLog>
# UPGRADE URGENCY: HIGH
* [FIX] Improved expired keys collection algorithm. Even under heavy load keys
to be expired can't accumulate because of lack of CPU time.
* [FIX] Replication speed regression fixed (issue #1238).
* [FIX] Fixed an hard to trigger PSYNC bug.
* [FIX] Fixed Issue #1240, ZUNIONSTORE could lead to wrong result.
* [NEW] Add per-db average TTL information in INFO output.
* [NEW] redis-benchmark improvements.
* [NEW] dict.c API wrong usage detection.
</ChangeLog>
<ChangeLog>
UPGRADE URGENCY: LOW, however updating is encouraged if you have many instances
per server and you want to lower the CPU / energy usage.
* [BUGFIX] Replication: more strict error checking for master PING reply.
* [BUGFIX] redis-cli: use keepalive socket option for improved reliability.
* [BUGFIX] Allow AUTH while loading the DB in memory.
* [BUGFIX] Don't segfault on unbalanced quotes while parsing config file.
* [IMPROVED] serverCron() frequency is now a runtime parameter (was REDIS_HZ).
* [IMPROVED] Use a lot less CPU when idle, even with many configured DBs.
</ChangeLog>
<ChangeLog>
UPGRADE URGENCY: MODERATE, this release contains many non-critical fixes
and many small improvements.
* [BUGFIX] redis-cli --rdb, fixed when the server sends newlines to ping.
* [BUGFIX] redis-cli, minor fixes on connection handling, prompt.
* [BUGFIX] Slow log: don't log EXEC, just executed commands.
* [BUGFIX] On failed shutdown don't try again and again compulsively.
* [BUGFIX] Fix build on sunos without backtrace().
* [BUGFIX] UNSUBSCRIBE and PUNSUBSCRIBE: always provide a reply (see 742e580)
* [BUGFIX] Lua struct library was broken, upgraded.
* [BUGFIX] Fix a bug in srandmemberWithCountCommand() with count argument.
* [BUGFIX] Test: disable clients timeout to prevent issues on slow systems.
* [BUGFIX] Sentinel: don't advertise the promoted slave as master too early.
* [IMPROVED] Whitelist SIGUSR1, see http://redis.io/topics/signals.
* [IMPROVED] Simpler to understand redis-cli --bigkeys output.
* [IMPROVED] Test now works with tclsh > 8.5.
* [IMPROVED] Added option to turn of the Nagle algorithm in slave socket.
* [IMPROVED] Optionally use SO_KEEPALIVE to detect dead peers.
</ChangeLog>
Add experimental support for lang/luajit, disabled by default.
<ChangeLog>
UPGRADE URGENCY: MODERATE if you use Lua scripting. Otherwise LOW.
* [BUGFIX] Multiple fixes for EVAL (issue #872).
* [BUGFIX] Fix overflow in mstime() in redis-cli and benchmark.
* [BUGFIX] Fix Linux / PPC64 behavior by correcting endianess detection.
* [BUGFIX] Fix NetBSD build by defining _XOPEN_SOURCE appropriately.
* [BUGFIX] Added missing license and copyright in a few places.
* [BUGFIX] Better error reporting when fd event creation fails.
</ChangeLog>
Add TEST option for running unit tests.
Add test and regression-test targets.
Remove needless patch.
New Makefile header convention.
PR: 172396
<ChangeLog>
* [BUGFIX] Fixed compilation on FreeBSD.
* [IMPROVED] SRANDMEMBER <count> that returns multiple random elements.
* [IMPROVED] Sentinel backported to 2.6. It will be taken in sync with 2.8.
* [IMPROVED] Helper function for scripting to return errors and status replies.
* [IMPROVED] SORT by nosort [ASC|DESC] uses sorted set elements ordering.
* [BUGFIX] Better resistence to system clock skew.
* [IMPROVED] Warn the user when the configured maxmemory seems odd.
* [BUGFIX] Hashing function is now murmurhash2 for security purposes.
* [IMPROVED] Install script no longer uses a template but redis.conf itself.
</ChangeLog>
<ChangeLog>
UPGRADE URGENCY: HIGH
* [BUGFIX] Theoretical bug in ziplist fixed.
* [BUGFIX] Better out of memory handling (Log produced in log file).
* [BUGFIX] Incrementally flush RDB file on slave side while performing the
first synchronization with the master. This makes Redis less
blocking in environments where disk I/O is slow.
* [BUGFIX] Don't crash with Lua's redis.call() without arguments.
* [BUGFIX] Don't crash after a big number of Lua calls on 32 bit systems
because of a failed assertion.
* [BUGFIX] Fix SORT behaviour when called from scripting.
* [BUGFIX] Adjust slave PING period accordingly to REDIS_HZ define.
* [BUGFIX] BITCOUNT: fix crash on overflowing arguments.
* [BUGFIX] Return an error when SELECT argument is not an integer.
* [BUGFIX] Blocking operations on lists were completely reimplemented for
correctness. Now blocking list ops and pushes originated from
Lua scripts will play well together and will be replicated
and transmitted to the AOF correctly.
* [IMPROVED] Send async PING before starting replication to avoid blocking if
master allows us to connect but it is actually not able to reply.
* [IMPROVED] Support slave-priority for Redis Sentinel.
* [IMPROVED] Hiredis library updated.
</ChangeLog>
Adopt patch for redis.conf.
Previously and by default redis was compiled with debugging
information, that didn't respect CFLAGS. So, now its
possible to compile with debugging information by use
WITH_DEBUG knob.
Take maintainership.
Approved by: maintainer (skv@)
