X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/e9ee513b6a940ecd3e30a152d6ad2e8fb25147a5..6e09ad1c156f10246ccd0f2de5b11a9635e28818:/TODO?ds=sidebyside diff --git a/TODO b/TODO index 3032392e..145ec524 100644 --- a/TODO +++ b/TODO @@ -2,62 +2,44 @@ Redis TODO ---------- WARNING: are you a possible Redis contributor? - Before implementing what is listed what is listed in this file + Before implementing what is listed in this file please drop a message in the Redis google group or chat with antirez or pietern on irc.freenode.org #redis to check if the work is already in progress and if the feature is still interesting for us, and *how* exactly this can be implemented to have good changes of a merge. Otherwise it is probably wasted work! Thank you -DISKSTORE TODO -============== -* Fix FLUSHALL/FLUSHDB: the queue of pending reads/writes should be handled. -* Check that 00/00 and ff/ff exist at startup, otherwise exit with error. -* Implement sync flush option, where data is written synchronously on disk when a command is executed. -* Implement MULTI/EXEC as transaction abstract API to diskstore.c, with transaction_start, transaction_end, and a journal to recover. -* Stop BGSAVE thread on shutdown and any other condition where the child is killed during normal bgsave. -* Fix RANDOMKEY to really do something interesting -* Fix DBSIZE to really do something interesting -* Add a DEBUG command to check if an entry is or not in memory currently +CLUSTER +======= -* dscache.c near 236, kobj = createStringObject... we could use static obj. +* Implement rehashing and cluster check in redis-trib. +* Reimplement MIGRATE / RESTORE to use just in memory buffers (no disk at + all). This will require touching a lot of the RDB stuff around, but we may + hand with faster persistence for RDB. +* Implement the slave nodes semantics and election. +* Allow redis-trib to create a cluster-wide snapshot (using SYNC). +* Allow redis-trib to restore a cluster-wide snapshot (implement UPLOAD?). -APPEND ONLY FILE -================ +SCRIPTING +========= -* in AOF rewirte use HMSET to rewrite small hashes instead of multiple calls - to HSET. +* SCRIPT FLUSH or alike to start a fresh interpreter? OPTIMIZATIONS ============= -* Avoid COW due to incrementing the dict iterators counter. * SORT: Don't copy the list into a vector when BY argument is constant. * Write the hash table size of every db in the dump, so that Redis can resize the hash table just one time when loading a big DB. * Read-only mode for slaves. * Redis big lists as linked lists of small ziplists? Possibly a simple heuristic that join near nodes when some node gets smaller than the low_level, and split it into two if gets bigger than high_level. -REPORTING -========= - -* Better INFO output with sections. - -RANDOM -====== - -* Clients should be closed as far as the output buffer list is bigger than a given number of elements (configurable in redis.conf) -* Should the redis default configuration, and the default redis.conf, just bind 127.0.0.1? - KNOWN BUGS ========== -* What happens in the following scenario: - 1) We are reading an AOF file. - 2) SETEX FOO 5 BAR - 3) APPEND FOO ZAP - What happens if between 1 and 2 for some reason (system under huge load - or alike) too many time passes? We should prevent expires while the - AOF is loading. - +* #519: Slave may have expired keys that were never read in the master (so a DEL + is not sent in the replication channel) but are already expired since + a lot of time. Maybe after a given delay that is undoubtably greater than + the replication link latency we should expire this key on the slave on + access?