Fixed a never experienced, theoretical bug that can actually happen in practice....

[redis.git] / TODO

diff --git a/TODO b/TODO
index 6c80403abfc485f26834eeb0e055062418e33e0b..5e592c99a827b41334516b5c18b457e35143a860 100644 (file)
--- a/TODO
+++ b/TODO
@@ -1,23 +1,30 @@
 Redis TODO and Roadmap
 
-VERSION 1.2 TODO (Zsets, Integer encoding, Append only journal)
-===============================================================
-
-Most of the features already implemented for this release. The following is a list of the missing things in order to release the first beta tar.gz:
-
-* Document "masterauth" in redis.conf, also merge the other related patch if it seems a safe one.
-
 VERSION 1.4 TODO (Hash type)
 ============================
 
-* Blocking LPOP (BLPOP).
-* Hashes (HSET, HGET, HEXISTS, HLEN, ...).
+* BRPOPLPUSH
+* RPOPLPUSH should notify blocking POP operations
 * List ops like L/RPUSH L/RPOP should return the new list length.
+* Save dataset / fsync() on SIGTERM
+* MULTI/EXEC should support the "EXEC FSYNC" form
+* Synchronous Virtual Memory
+* BLPOP & C. tests (write a non blocking Tcl client as first step)
+
+Virtual Memory sub-TODO:
+* Check if the page selection algorithm is working well.
+* Divide swappability of objects by refcount
+* vm-swap-file <filename>. The swap file should go where the user wants, and if it's already there and of the right size we can avoid to create it again.
+* it should be possible to give the vm-max-memory option in megabyte, gigabyte, ..., just using 2GB, 100MB, and so forth.
+* Make sure to wait all the IO threads are done before to fork() for BGSAVE and BGREWRITEAOF
+* Enlarge the stack of threads, to problems when calling LZF lib.
+* redis-cli vmstat, calling INFO every second and printing VM stats ala vmstat.
 
 VERSION 1.6 TODO (Virtual memory)
 =================================
 
-* Redis Virtual Memory for datasets bigger than RAM (http://groups.google.com/group/redis-db/msg/752997c7b38553cd)
+* Asynchronous Virtual Memory
+* Hashes (HSET, HGET, HEXISTS, HLEN, ...).
 
 VERSION 1.8 TODO (Fault tollerant sharding)
 ===========================================
@@ -48,13 +55,18 @@ BIG ONES:
 
 * 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)
+* ZRANK: http://docs.google.com/viewer?a=v&q=cache:tCQaP3ZeN4YJ:courses.csail.mit.edu/6.046/spring04/handouts/ps5-sol.pdf+skip+list+rank+operation+augmented&hl=en&pid=bl&srcid=ADGEEShXuNjTcZyXw_1cq9OaWpSXy3PprjXqVzmM-LE0ETFznLyrDXJKQ_mBPNT10R8ErkoiXD9JbMw_FaoHmOA4yoGVrA7tZWiy393JwfCwuewuP93sjbkzZ_gnEp83jYhPYjThaIzw&sig=AHIEtbRF0GkYCdYRFtTJBE69senXZwFY0w
 
 SMALL ONES:
 
 * 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.
 
-SHORT/LONG TERM RANDOM TODO ITEMS
-=================================
+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 ;)
@@ -72,12 +84,5 @@ it's not a guarantee they'll ever get implemented ;)
 * zmalloc() should avoid to add a private header for archs where there is some other kind of libc-specific way to get the size of a malloced block. Already done for Mac OS X.
 * Read-only mode.
 * Pattern-matching replication.
-* Don't save empty lists / sets / zsets on disk with snapshotting.
-* Remove keys when a list / set / zset reaches length of 0.
-
-DOCUMENTATION WISHLIST
-======================
-
-* Page explaining tips to reduce memory usage.
-* A Sorted sets HOWTO
-
+* Add an option to relax the delete-expiring-keys-on-write semantic *denying* replication and AOF when this is on? Can be handy sometimes, when using Redis for non persistent state, but can create problems. For instance should rename and move also "move" the timeouts? How does this affect other commands?
+* Multiple BY in SORT.