Document mostly dead code in RPOPLPUSH implementation.

[redis.git] / TODO

diff --git a/TODO b/TODO
index 8f0a5db204cffb57630b16ff9b8824401ac2bb2e..145ec5243e93a72686067cb180441b583d06f27f 100644 (file)
--- a/TODO
+++ b/TODO
@@ -2,7 +2,7 @@ Redis TODO
 ----------
 
 WARNING: are you a possible Redis contributor?
 ----------
 
 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
          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


@@ -10,65 +10,36 @@ WARNING: are you a possible Redis contributor?
          of a merge. Otherwise it is probably wasted work! Thank you
 
 
          of a merge. Otherwise it is probably wasted work! Thank you
 
 

-API CHANGES
-===========
+CLUSTER
+=======

 
 

-* Turn commands into variadic versions when it makes sense, that is, when
-  the variable number of arguments represent values, and there is no conflict
-  with the return value of the command.
+* 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
 =============
 
 
 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.
 
 * 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
 ==========
 
 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
 * #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 undoubltly greater than
+  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?
   the replication link latency we should expire this key on the slave on
   access?

-
-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
-* dscache.c near 236, kobj = createStringObject... we could use static obj.