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1 | Redis TODO and Roadmap |
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2 | ---------------------- |
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3 | |
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4 | VERSION 2.2 TODO (Optimizations and latency) |
5 | ============================================ |
6 | |
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7 | * Support for syslog(3). |
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8 | * Change the implementation of ZCOUNT to use the augmented skiplist in order to be much faster. |
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9 | * Add an explicit test for MULTI/EXEC reloaded in the AOF. |
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10 | * Command table -> hash table, with support for command renaming |
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11 | |
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12 | VM TODO |
13 | ======= |
14 | |
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15 | * Use multiple open FDs against the VM file, one for thread. |
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16 | * 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. |
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17 | |
18 | STRING COMMANDS |
19 | =============== |
20 | |
21 | * Implement STRLEN, PEEK, POKE, SETBIT, GETBIT |
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22 | |
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23 | OTHER IMPORTANT THINGS THAT WILL BE ADDED BUT I'M NOT SURE WHEN |
24 | =============================================================== |
25 | |
26 | BIG ONES: |
27 | |
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28 | * BRPOPLPUSH |
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29 | * Specially encoded memory-saving integer sets. |
30 | * A command to export a JSON dump (there should be mostly working patch needing major reworking). |
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31 | * Specially encoded sets of integers (this includes a big refactoring providing an higher level layer for Sets manipulation) |
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32 | |
33 | SMALL ONES: |
34 | |
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35 | * 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. |
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36 | * Delete on writes against expire policy should only happen after argument parsing for commands doing their own arg parsing stuff. |
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37 | * 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. |
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38 | * MSADD (n keys) (n values). See this thread in the Redis google group: http://groups.google.com/group/redis-db/browse_thread/thread/e766d84eb375cd41 |
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39 | * Don't save empty lists / sets / zsets on disk with snapshotting. |
40 | * Remove keys when a list / set / zset reaches length of 0. |
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41 | * 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. |
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42 | * PING the master from time to time to check if it's gone. |
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43 | |
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44 | THE "MAYBE" TODO LIST: things that may or may not get implemented |
45 | ================================================================= |
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46 | |
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47 | Most of this can be seen just as proposals, the fact they are in this list |
48 | it's not a guarantee they'll ever get implemented ;) |
49 | |
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50 | * SORT: Don't copy the list into a vector when BY argument is constant. |
51 | * 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. |
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52 | * 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. |
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53 | * Read-only mode. |
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54 | * Kill the delete-on-write behavior of expires, replicating DELs |
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55 | * Multiple BY in SORT. |
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56 | |
57 | KNOWN BUGS |
58 | ========== |
59 | |
60 | * 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. |
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61 | |
62 | REDIS CLI TODO |
63 | ============== |
64 | |
65 | * Computer parsable output generation |
66 | * Memoize return values so that they can be used later as arguments, like $1 |