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182 Commits

Author SHA1 Message Date
antirez aa2bf6ba8b TTL API change: TTL returns -2 for non existing keys. 
The previous behavior was to return -1 if:

1) Existing key but without an expire set.
2) Non existing key.

Now the second case is handled in a different, and TTL will return -2
if the key does not exist at all.

PTTL follows the same behavior as well.
 2012-11-12 23:04:36 +01:00
antirez 4365e5b2d3 BSD license added to every C source and header file. 2012-11-08 18:31:32 +01:00
antirez bfc197c3b6 Make sure that SELECT argument is an integer or return an error. 
Unfortunately we had still the lame atoi() without any error checking in
place, so "SELECT foo" would work as "SELECT 0". This was not an huge
problem per se but some people expected that DB can be strings and not
just numbers, and without errors you get the feeling that they can be
numbers, but not the behavior.

Now getLongFromObjectOrReply() is used as almost everybody else across
the code, generating an error if the number is not an integer or
overflows the long type.

Thanks to @mipearson for reporting that on Twitter.
 2012-09-11 10:32:04 +02:00
Pieter Noordhuis cc4f65fea4 Use safe dictionary iterator from KEYS 
Every matched key in a KEYS call is checked for expiration. When the key
is set to expire, the call to `getExpire` will assert that the key also
exists in the main dictionary. This in turn causes a rehashing step to
be executed. Rehashing a dictionary when there is an iterator active may
result in the iterator emitting duplicate entries, or not emitting some
entries at all. By using a safe iterator, the rehash step is omitted.
 2012-05-01 10:52:03 +02:00
antirez 4cb8bb2952 Never used function stringObjectEqualsMs() removed. 2012-04-07 02:10:48 +02:00
antirez 70381bbf82 expireGenericCommand(): better variable names and a top-comment that describes the function's behavior. 2012-04-05 15:52:08 +02:00
Premysl Hruby c6bf4a0034 for (p)expireat use absolute time, without double recomputation 2012-04-05 15:46:21 +02:00
Premysl Hruby d48d1309c6 fix mstime() ommited while comparing if key is already expired 2012-04-05 15:46:15 +02:00
Premysl Hruby b57dbdbba3 remove disk-store related comments 2012-03-27 18:46:51 +02:00
Premysl Hruby 024f213b12 fix time() instead of mstime() in expireIfNeeded 2012-03-27 17:31:21 +02:00
antirez 355f859134 Use less memory when emitting the protocol, by using more shared objects for commonly emitted parts of the protocol. 2012-02-04 08:58:37 +01:00
antirez b80b1c5914 Only incremnet stats for key miss/hit when the key is semantically accessed in read-only. 2012-02-01 21:51:20 +01:00
antirez 89f6f6abcf setKey(): call the higher level wrapper setModifiedKey() instead of touchWatchedKey() even if currently they are exactly the same. 2012-01-30 10:27:50 +01:00
antirez f48cd4b90c some RDB server struct fields renamed. 2011-12-21 12:22:13 +01:00
antirez ff2145adac more AOF server struct fields renamed. 2011-12-21 12:17:02 +01:00
antirez e394114d95 AOF refactoring, now with three states: ON, OFF, WAIT_REWRITE. 2011-12-21 10:31:34 +01:00
antirez 4ab8695d53 New script timeout semantics and SCRIPT KILL implemented. SHUTDOWN NOSAVE and SHUTDOWN SAVE implemented. 2011-11-18 14:10:48 +01:00
antirez 12d293ca6e high resolution expires API modified to use separated commands. AOF transation to PEXPIREAT of all the expire-style commands fixed. 2011-11-10 17:52:02 +01:00
antirez 52d46855d9 TTL, EXPIRE and EXPIREAT now support the milliseconds input/output form 2011-11-09 18:05:35 +01:00
antirez 7dcc10b65e Initial support for key expire times with millisecond resolution. RDB version is now 3, new opcoded added for high resolution times. Redis is still able to correctly load RDB version 2. Tests passing but still a work in progress. API to specify milliseconds expires still missing, but the precision of normal expires is now already improved and working. 2011-11-09 16:51:19 +01:00
antirez c0ba9ebe13 dict.c API names modified to be more coincise and consistent. 2011-11-08 17:07:55 +01:00
antirez 13cd1515f9 FLUSHALL now prevents rdbSave() from resetting the dirty counter, so that the command will get replicated and put inside the AOF. This fixes issue #142 2011-10-17 10:31:47 +02:00
antirez 42a6fcd6c5 FLUSHALL will only perform a blocking SAVE if RDB persistence is configured. 2011-10-17 10:31:34 +02:00
antirez 4ab18a3331 Fix for bug #128 about the RENAME command. 2011-10-10 15:21:19 +02:00
antirez eab0e26e03 replaced redisAssert() with redisAssertWithInfo() in a shitload of places. 2011-10-04 18:43:03 +02:00
antirez 812ecc8b10 don't process EXPIRE with negative TTL or EXPIREAT with time in the past if we are a slave too (see http://groups.google.com/group/redis-db/browse_thread/thread/5a931fefb88b16d5). Also propagate it as DEL. 2011-07-07 16:24:37 +02:00
Hampus Wessman 040b0ade7d Don't expire keys while loading AOF. 
They will be expired (and a DEL will be logged) after the loading is done
instead.
 2011-07-07 16:08:30 +02:00
antirez c9d0c3623a diskstore removed 2011-06-25 12:22:03 +02:00
antirez f85cd526c1 DB API refactoring. The changes were designed together with Pieter Noordhuis. 2011-06-20 16:42:16 +02:00
antirez a7b058dae6 Fixed semantics of CLUSTER SETSLOT, SELECT now only denied in cluster mode if selected DB is not 0 so that MIGRATE still works well. 2011-05-05 18:10:02 +02:00
antirez 484354ff95 CLUSTER GETKEYSINSLOT implemented 2011-04-29 16:17:58 +02:00
antirez c772d9c6e7 take a hashslot -> keys index, will be used for cluster rehasing 2011-04-28 19:00:33 +02:00
antirez ecc9109434 Cluster branch merged to unstable. 2011-03-29 17:51:15 +02:00
antirez 4b61ca460c fixed a bug in RENAME getKeys() function 2011-03-28 18:46:22 +02:00
antirez 6e1b9b58ec bug fixed in zunionstore specific getKeys() implementation 2011-03-28 18:21:06 +02:00
antirez b4b5144694 Fixes to the new preloading / key discovery APIs 2011-03-28 17:54:42 +02:00
antirez 9791f0f8ce new preloading implemented, still EXEC not handled correctly, everything to test 2011-03-23 18:09:17 +01:00
antirez 15db4aa006 TTL command fixed to work reliably with diskstore 2011-03-04 15:49:01 +01:00
antirez 3a73be7524 master-slave replication fixed, it was not listing any key using KEYS command in the slave. 2011-01-14 09:53:57 +01:00
antirez 69bfffb4a7 test adapted to run with diskstore, and a few bugs fixed 2011-01-09 18:25:34 +01:00
antirez 36c17a53b6 source reshaped a bit to play well with a bgsaving thread, still work to do, does not compile. 2011-01-07 18:15:14 +01:00
antirez 5ab7bbfc27 fixed logging level for debugging message 2011-01-03 17:40:10 +01:00
antirez 5d46e370b7 diskstore more fixes 2011-01-03 17:18:37 +01:00
antirez c15a3887e0 diskstore bug fixing and negative cache proper implementation 2011-01-03 10:47:39 +01:00
antirez 120b9ba8f8 FLUSHALL / FLUSHDB for diskstore implemented 2011-01-03 10:17:39 +01:00
antirez 4942145d72 fixed a bug in diskstore 2011-01-02 21:39:17 +01:00
antirez 9a3730289f blocking load fixed with the new design 2011-01-01 21:39:48 +01:00
antirez 3be00d7ed6 implemented a different approach to IO scheduling, so object->storage is no longer used, instead there is a queue and hash table of IO tasks to process, and it is always possible to know what are the scheduled and acrtive IO operations against every single key. 2011-01-01 21:35:56 +01:00
antirez aa81e4d5f4 minor changes to doc and comments 2010-12-31 18:23:31 +01:00
antirez d934e1e85b negative caching implemented 2010-12-31 17:32:59 +01:00
antirez a440ecf0d3 major bug and a dead lock fixed 2010-12-31 14:30:24 +01:00
antirez ad01a25553 blocking load of keys on lookup -- nor tested, nor finished 2010-12-31 00:18:17 +01:00
antirez 4e941ecacb short but important comment added 2010-12-30 19:20:23 +01:00
antirez 3122229228 handled DEL command as a special optimized case for disk store 2010-12-30 19:16:59 +01:00
antirez 8d51fb6a80 diskstore cache bug fixing 2010-12-30 18:37:46 +01:00
antirez 4ab988238f more work done for diskstore without trying to compile, more work needed to build again. 2010-12-30 16:41:36 +01:00
antirez cea8c5cd75 touched key for WATCH refactored into a more general thing that can be used also for the cache system. Some more changes towards diskstore working. 2010-12-29 19:39:42 +01:00
antirez 16d778780e a lot of code reworked/removed to implement object caching 2010-12-28 18:06:40 +01:00
antirez 1b1f47c915 command lookup process turned into a much more flexible and probably faster hash table 2010-11-03 11:23:59 +01:00
antirez 7d0966a6b7 Do not update the LRU info on key lookup when we have a saving child. With this trivial change the additional memory used while saving with a background child in presence of many read operations is zero. 2010-11-02 18:59:48 +01:00
antirez 53eeeaff08 added keyspace_hits and keyspace_misses fields in INFO output 2010-10-15 12:19:21 +02:00
antirez 670bf2fd36 Don't increment dirty on expireIfNeeded() as natural expires are not considered database changes. This will avoid useless read-only commands in the AOF file as a result of, for instance, a GET operation triggering an expirIfNeeded() call resulting in an expired key removed. 2010-10-15 11:29:03 +02:00
antirez ef59a8bc9e Object approximated LRU algorithm enhanced / fixed / refactored. This is used for the VM currently but will soon be used for maxmemory expiring. 2010-10-14 13:52:58 +02:00
antirez 144a5e72f2 fixed an alignment problem with time_t is 32 bit, long is 64 bit, and arch is sparc or any other where unaligned accesses will result to sigbus 2010-10-07 16:21:35 +02:00
antirez 89f9f83769 Merge remote branch 'pietern/networking-perf' 2010-09-16 11:38:40 +02:00
antirez da14590bd9 Fix re-enabled again, I forgot to check if VM was enabled before calling handleClientsBlockedOnSwappedKey() 2010-09-08 13:47:28 +02:00
antirez 155fb4b45e latest fix reverted, there is some problem reported by the CI test 2010-09-08 13:45:51 +02:00
antirez 7f00cd2264 Fixed a race condition in VM happening when a key was deleted while there was a client waiting for this key to be resumed from swap to memory. The client would hang forever. 2010-09-08 13:26:16 +02:00
Pieter Noordhuis 9e83ac06ef Merge branch 'master' into networking-perf 
Resolved conflict in src/db.c and changed adding an error to the reply
in blockingPopGenericCommand to use the new API.
 2010-09-03 16:44:50 +02:00
Pieter Noordhuis 3ab203762f Use specialized function to add status and error replies 2010-09-02 23:33:06 +02:00
Pieter Noordhuis b70d355521 Use existing reply functions where possible 2010-09-02 19:52:04 +02:00
Pieter Noordhuis b301c1fc2b Wrapper for adding unknown multi bulk length to reply list 2010-08-30 16:39:14 +02:00
antirez e0e1c19520 Fixed MONITOR mode and Issue 296 2010-08-30 11:51:45 +02:00
antirez c91abdcd07 Fixed overflow detection in argument to long convertion function in general, and in expire/ttl pairs specifically, addressing issue 54 2010-08-23 17:06:38 +02:00
antirez 1fb4e8def7 PERSIST: a fix and some basic test 2010-08-03 14:25:22 +02:00
antirez a539d29ac5 PERSIST command implemented 2010-08-03 14:19:20 +02:00
antirez 0cf5b7b57c allow to set a new EXPIRE of an existing volatile key 2010-08-03 12:26:30 +02:00
antirez c25a5d3b10 memory leak removed from expire propagation code 2010-08-02 21:37:39 +02:00
antirez bcf2995c98 support for write operations against expiring keys, by master-controlled expiring in replication and AOF synthesizing DEL operations 2010-08-02 18:13:39 +02:00
antirez 5b4bff9c17 WATCH is now affected only when write commands actually modify the key content 2010-07-12 12:01:15 +02:00
antirez b7a8daef60 WATCH will now consider touched keys target of EXPIRE command after the WATCH is performed, but not before 2010-07-05 19:38:12 +02:00
antirez e2641e09cc redis.c split into many different C files. 
networking related stuff moved into networking.c

moved more code

more work on layout of source code

SDS instantaneuos memory saving. By Pieter and Salvatore at VMware ;)

cleanly compiling again after the first split, now splitting it in more C files

moving more things around... work in progress

split replication code

splitting more

Sets split

Hash split

replication split

even more splitting

more splitting

minor change
 2010-07-01 14:38:51 +02:00