Revert "fsync always now uses O_DIRECT on Linux"

[redis.git] / TODO

diff --git a/TODO b/TODO
index d40d55856383d7e4719a653adb609eda6fdaba50..2c11929399b5c6d41002d3939a1cb861644e9b3b 100644 (file)
--- a/TODO
+++ b/TODO
@@ -8,8 +8,6 @@ VERSION 2.0 TODO
 * Save dataset / fsync() on SIGTERM
 * MULTI/EXEC should support the "EXEC FSYNC" form?
 * BLPOP & C. tests (write a non blocking Tcl client as first step)
-* ZCOUNT sortedset min max
-* 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
 * Once ZRANK is implemented, change the implementation of ZCOUNT to use the augmented skiplist in order to be much faster.
 * Write doc for ZCOUNT, and for open / closed intervals of sorted sets range operations.
 
@@ -29,7 +27,7 @@ Virtual Memory sub-TODO:
 
 * Hashes (GET/SET/DEL/INCRBY/EXISTS/FIELDS/LEN/MSET/MGET). Special encoding for hashes with less than N elements.
 * Write documentation for APPEND
-* Implement LEN, SUBSTR, PEEK, POKE, SETBIT, GETBIT
+* Implement LEN, PEEK, POKE, SETBIT, GETBIT
 
 VERSION 2.2 TODO (Fault tolerant sharding)
 ===========================================
@@ -59,11 +57,14 @@ BIG ONES:
 
 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
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