redis-cli in interactive mode now prints the time elapsed of the operation performed...

[redis.git] / TODO

diff --git a/TODO b/TODO
index 02595425b49541504bf3c47de632dfd8f04951e6..830149b30d90f286b0e193bdbb98b7386f94876e 100644 (file)
--- a/TODO
+++ b/TODO
@@ -1,17 +1,66 @@
-BETA 8 TODO
-- keys expire
-- sunion ssub
-- write integers in a special way on disk (and on memory?)
-- compact types for disk storing of short strings (no 4 bytes overhead!)
-- network layer stresser in test in demo
-- maxclients directive
-- check 'server.dirty' everywere
-- replication tests
-- command line client. If the last argument of a bulk command is missing get it from stdin. Example:
-    $ echo "bar" | redis-client SET foo
-    $ redis-client SET foo bar
-    $ redis-client GET foo
-    bar
-    $
-- Make Redis aware of the memory it is using thanks to getrusage() and report this info with the INFO command.
-- INFO command: clients, slave/master, requests/second in the last N seconds, memory usage, uptime, dirty, lastsave
+Redis TODO and Roadmap
+----------------------
+
+VERSION 2.2 TODO (Optimizations and latency)
+============================================
+
+* Support for syslog(3).
+* Change the implementation of ZCOUNT to use the augmented skiplist in order to be much faster.
+* Add an explicit test for MULTI/EXEC reloaded in the AOF.
+* Command table -> hash table, with support for command renaming
+
+VM TODO
+=======
+
+* Use multiple open FDs against the VM file, one for thread.
+* Check what happens performance-wise if instead of creating threads again and again the same threads are reused forever. Note: this requires a way to disable this clients in the child, but waiting for empty new jobs queue can be enough.
+
+STRING COMMANDS
+===============
+
+* Implement STRLEN, PEEK, POKE, SETBIT, GETBIT
+
+OTHER IMPORTANT THINGS THAT WILL BE ADDED BUT I'M NOT SURE WHEN
+===============================================================
+
+BIG ONES:
+
+* BRPOPLPUSH
+* Specially encoded memory-saving integer sets.
+* A command to export a JSON dump (there should be mostly working patch needing major reworking).
+* Specially encoded sets of integers (this includes a big refactoring providing an higher level layer for Sets manipulation)
+
+SMALL ONES:
+
+* If sizeof(double) == sizeof(void*) we could store the double value of sorted sets directly in place of the pointer instead of allocating it in the heap.
+* Delete on writes against expire policy should only happen after argument parsing for commands doing their own arg parsing stuff.
+* Give errors when incrementing a key that does not look like an integer, when providing as a sorted set score something can't be parsed as a double, and so forth.
+* MSADD (n keys) (n values). See this thread in the Redis google group: http://groups.google.com/group/redis-db/browse_thread/thread/e766d84eb375cd41
+* Don't save empty lists / sets / zsets on disk with snapshotting.
+* Remove keys when a list / set / zset reaches length of 0.
+* An option to exec a command slave-side if the master connection is lost: even cooler: if the script returns "0" the slave elects itself as master, otherwise continue trying to reconnect.
+* PING the master from time to time to check if it's gone.
+
+THE "MAYBE" TODO LIST: things that may or may not get implemented
+=================================================================
+
+Most of this can be seen just as proposals, the fact they are in this list
+it's not a guarantee they'll ever get implemented ;)
+
+* 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.
+* Byte Array type (BA prefixed commands): BASETBIT BAGETBIT BASETU8 U16 U32 U64 S8 S16 S32 S64, ability to atomically INCRBY all the base types. BARANGE to get a range of bytes as a bulk value, BASETRANGE to set a range of bytes.
+* Read-only mode.
+* Kill the delete-on-write behavior of expires, replicating DELs
+* Multiple BY in SORT.
+
+KNOWN BUGS
+==========
+
+* LRANGE and other commands are using 32 bit integers for ranges, and overflows are not detected. So LRANGE mylist 0 23498204823094823904823904 will have random effects.
+
+REDIS CLI TODO
+==============
+
+* Computer parsable output generation
+* Memoize return values so that they can be used later as arguments, like $1