TODO

   1 Redis TODO
   2 ----------
   3
   4 WARNING: are you a possible Redis contributor?
   5          Before implementing what is listed what is listed in this file
   6          please drop a message in the Redis google group or chat with
   7          antirez or pietern on irc.freenode.org #redis to check if the work
   8          is already in progress and if the feature is still interesting for
   9          us, and *how* exactly this can be implemented to have good changes
  10          of a merge. Otherwise it is probably wasted work! Thank you
  11
  12 DISKSTORE TODO
  13 ==============
  14
  15 * Check that 00/00 and ff/ff exist at startup, otherwise exit with error.
  16 * Implement sync flush option, where data is written synchronously on disk when a command is executed.
  17 * Implement MULTI/EXEC as transaction abstract API to diskstore.c, with transaction_start, transaction_end, and a journal to recover.
  18 * Stop BGSAVE thread on shutdown and any other condition where the child is killed during normal bgsave.
  19 * Use a mutex to log on the file, so that we don't get overlapping messages, or even better make sure to use a single write against it.
  20 * Fix RANDOMKEY to really do something interesting
  21 * Fix DBSIZE to really do something interesting
  22 * Add a DEBUG command to check if an entry is or not in memory currently
  23
  24 REPLICATION
  25 ===========
  26
  27 * PING between master and slave from time to time, so we can subject the
  28 master-slave link to timeout, and detect when the connection is gone even
  29 if the socket is still up.
  30
  31 OPTIMIZATIONS
  32 =============
  33
  34 * SORT: Don't copy the list into a vector when BY argument is constant.
  35 * 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.
  36 * Read-only mode for slaves.
  37
  38 KNOWN BUGS
  39 ==========
  40
  41 * What happens in the following scenario:
  42     1) We are reading an AOF file.
  43     2) SETEX FOO 5 BAR
  44     3) APPEND FOO ZAP
  45     What happens if between 1 and 2 for some reason (system under huge load
  46     or alike) too many time passes? We should prevent expires while the
  47     AOF is loading.
  48