1 * Added Twitter's memcached_server_error() functions.
2 * Fix for OSX compiles in development builds.
3 * Updated C++ interface.
5 0.31 Fri Jul 10 09:02:50 PDT 2009
6 * Added support or HA via replication.
7 * malloc() removed for server key usage.
9 * Added support for memcached_set_memory_allocators().
10 * Fixed bug in configure.ac for have_htoll.
12 0.30 Sun May 31 17:31:52 PDT 2009
13 * Added memcachd_dump command (and framework for memdump tool).
14 * Realigned all structures to remove padding (and line up important bits for 64bit caches.
15 * Remove some of sprintf() in storage calls().
16 * Removed printf() in stat call for unknown stat member.
17 * memcached_generate_hash() function added.
18 * Added tests to make sure all hash functions are stable.
20 0.29 Tue May 19 08:26:48 PDT 2009
21 * Fixed malloc usage to calloc for spots where we need zero filled memory.
22 * All code warnings now treated as errors.
23 * Fixes for debian packaging.
24 * Added new pooling mechanism.
25 * MEMCACHED_BEHAVIOR_NO_BLOCK no longer also sets MEMCACHED_BEHAVIOR_BUFFER_REQUESTS.
26 * Updated generic rpm.
28 0.28 Tue Apr 14 18:56:28 PDT 2009
29 * Fixed bug in init sructure (reapplied)
30 * Fixed bug in get/set by key (nikkhils@gmail.com)
32 0.27 Sun Mar 29 22:33:01 PDT 2009
33 * Added new UDP fire-forget mode.
34 * Reworked performance for mget() to better make use of async protocol
35 * Cleaned up execution of fetch (just one set of code now)
36 * Fixed Jenkin's for big endian hosts.
37 * Updates for memstat to determine network latency.
38 * Updates for binary protocol.
39 * Many updates to documentation.
41 0.26 Thu Jan 29 13:05:50 PST 2009
42 * Fix for decrement on hash key
43 * Fixed assert that was catching bad memset() call in host_reset()
44 * Fix purge issue for blocked IO which has been stacked.
46 0.25 Fri Nov 28 09:59:35 PST 2008
48 * Update of Murmur hash code
49 * Support explicit weights (Robey Pointer, Evan Weaver)
50 * Bugfix for ketama continuum (Robey Pointer)
51 * New behavior MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY (Robey Pointer)
52 * Don't ever call stats for weighting servers, because it is unstable.
54 0.24 Tue Sep 16 02:59:03 PDT 2008 (never released)
55 * Cleanup compile warnings.
56 * Fix issues in partitioning by keys.
57 * Fixed "fail case" to make sure when calling memcached_clone() no
58 memcached_st is over written.
59 * New memcached_server_by_key() method for finding a server from
61 * memcached_server_free() was added for freeing server structures.
64 0.23 Sun Sep 7 08:13:59 PDT 2008
65 * Added strings.h header for Solaris 9
67 * Support for weighted Ketama from Yin Chen.
69 * Fix for 0 length key to trigger bad key.
70 * Added behaviors MEMCACHED_BEHAVIOR_SND_TIMEOUT, MEMCACHED_BEHAVIOR_RCV_TIMEOUT
71 * Support for Binary Protocol added
73 0.22 Mon Jul 14 09:24:11 PDT 2008
74 * Fix where master key was no being checked for "bad key"
75 * Fixed bugs in stats output (thread output was wrong)
76 * Clarified MEMCACHED_BAD_KEY_PROVIDED is return for bad prefix key.
77 * Found a bug in Flags return (Jacek Ostrowski)
78 * Fixed issue with compiling on Visual Studio
80 0.21 Fri May 23 18:34:09 PDT 2008
81 * Change of char * to const char * for all key based functions.
82 * New MEMCACHED_CALLBACK_PREFIX_KEY added. You can now create domains for
84 * Fixed bug introducd in last version on memcp
85 * Fix for death of file io to call shutdown()
87 0.20 Mon May 5 08:34:26 PDT 2008
88 * New consistent distribution tests.
89 * Found a memory leak when a server constantly fails.
90 * Fix in watchpoint macro
91 * Changed default timeout to 1 second for poll timeouts
92 * Wheel uses less memory/dynamic allocation for size (no longer limited to
94 * memslap memory leak fix
95 * Added Ketama distribution
96 * Fix assert.h compile problem on CentOS
98 0.19 Wed Apr 9 09:30:53 PDT 2008
99 * Documentation fix in libmemcached.
100 * Fixed bug where sort was always occuring on hosts
101 * Logic fix in branch prediction (thanks Jay!)
102 * Read through cached support.
103 * Fixed for cas by key operation.
104 * Fix for memcached_server_st list structures to have correct count.
105 * Added callback MEMCACHED_CALLBACK_DELETE_TRIGGER
106 * Removed function call in favor of macro (aka cut out some instructions)
109 0.18 Sun Mar 16 21:57:55 PDT 2008
110 * Fix plus tests for non-zero value objects and flags.
111 * MEMCACHED_HASH_MURMUR added for murmur algorithm provided.
112 * MEMCACHED_BEHAVIOR_RETRY_TIMEOUT added to keep connecting from looping
114 * gcc branch prediction optimizations
115 * Refactored entire tree to make include files cleaner
116 * Fixed leaked socket.
118 0.17 Wed Feb 27 03:33:29 PST 2008
119 * MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT added for connect timeout in
121 * Incompatible change in memcached_behavior_set() api. We now use a
122 uint64_t, instead of a pointer.
123 * Fix for storage of values for zero.
124 * memcached_server_cursor() function added to API for cycling through servers.
126 0.16 Mon Feb 18 00:30:25 PST 2008
127 * Work on the UDP protocol
128 * Added get_by_key, set_by_key tests for C++ API
129 * Fix for limit_maxbytes to be 64bit in stats
130 * Added Atom Smasher test (scale baby, scale!)
131 * Servers are now sorted, meaning that servers are now ordered so that
132 clients with the same lists, will have same distribution. (Idea from
133 Ross McFarland). MEMCACHED_BEHAVIOR_SORT_HOSTS was added to enable
135 * Added MEMCACHED_BAD_KEY_PROVIDED error for auto, set, and get operations.
136 MEMCACHED_BEHAVIOR_VERIFY_KEY was added to enable this feature.
137 * More error messages on command line tools.
138 * Fixed bugs in memcached_cas() operator.
139 * Fix to loop through interfaces
141 0.15 Tue Jan 29 14:55:44 PST 2008
142 * More work on the C++ API.
143 * Bug fixes around block corner cases.
144 * Slight performance increase in both read() and write().
146 0.14 Tue Jan 22 06:21:49 PST 2008
147 * For for bug found by Evan Weaver where increment() was not returning
148 propper error of value was not found.
149 * Fix for bad null pointer on flag by Toru Maesaka.
150 * Refactor of all IO to just pass in the active server
151 * Problem configuring (PKG_CHECK_MODULES) fixed by removal of "rpath" in
152 support/libmemcached.pc.in (Thanks to Ross McFarland).
153 * Added memcached_callback_get()/set()
154 * First prototype of C++ interface
155 * Updated docs for uint16_t changes in previous release
157 0.13 Sun Jan 13 06:51:50 PST 2008
158 * MEMCACHED_BEHAVIOR_USER_DATA added to store user pointer.
159 * Fix for failure to connect to invalidate socket.
160 * Patch from Marc Rossi to add --hash option for memcp, memrm, and memcat.
161 * Kevin's patch for fixing EOF issues during a read.
162 * Toru Maesaka patch for stats mismatch
163 * Fix for when CRC return 0
164 * Fixed uint16_t issues around flags. Turns out the documentation on the
166 * Lingering socket fixes for FreeBSD.
167 * Patches from Kevin Dalley for FreeBSD 4.0
168 * Added multi delete functions.
169 * All get key returns have C style null termination
170 * If memcached_server_list_append is passed NULLs instead of pointers it
172 * Added memcached_fetch_execute() method
173 * Found a bug where memcached_fetch() was not null terminating the result
175 * memcached_behavior() now has the ability to set "buffering" so that
176 data is not automatically flushed.
177 * Behavior change, buffered commands now return MEMCACHED_BUFFERED
179 0.12 Tue Dec 11 15:20:55 PST 2007
180 * Updates for consistent hashing
182 * Static allocation for hostname (performance)
183 * Fixed bug where in non-block mode all data might not have been sent on
185 * Refactor of memcached_get() to use common code.
186 * Change in value fetch, MEMCACHED_END is now returned when keys are no
188 * Fixed bug where key could be out of range of characters
189 * Added _by_key() methods to allow partitioning of values to particular
191 * MEMCACHED_DEFAILT_TIMEOUT is now set to a non -1 value.
192 * Performance improvements in get operations.
194 0.11 Mon Nov 26 01:05:52 PST 2007
195 * Added option to memcache_behavior_set() so that poll() can be timed out.
196 * Fixed memory leak in case of using memcached_fetch_result() where no
198 * Bug fixed in memcached_connect() which would cause servers that
199 did not need to be enabled to be enabled (performance issue).
200 * Rewrote bounds checking code for get calls.
201 * "make test" now starts its own memcached servers.
202 * Added Hseih hash (MEMCACHED_HASH_HSIEH), which is showing about 7%
203 performance over standard hash.
205 0.10 Tue Nov 20 23:22:31 PST 2007
206 * Added append binary test.
207 * Added MEMCACHED_BEHAVIOR_CACHE_LOOKUPS behavior so that you can save on
208 multiple DNS lookups.
209 * Added CAS support, though this is optional and must be enabled during
211 * Added the utility memerror to create human readable error strings
212 from memcached errors (aka convert ints to strings)
213 * Fixed type in MEMCACHED_HOST_LOOKUP_FAILURE
214 * Fixed bug where hostname might not be null terminated
215 * Moved to using gethostbyname_r() on Linux to solve thread safety issue
216 * Added -rpath support for pkg-config
217 * Documentation fix for hash setting using memcached_behavior_set()
219 0.9 Thu Nov 15 07:44:00 PST 2007
220 * fix for when no servers are definied.
221 * different buffers are now kept for different connections to
222 speed up async efforts
223 * Modified increment/decrement functions to return uint64_t values
224 * Fixed bug in cases where zero length keys were provided
225 * Thread cleanup issue in memslap
226 * No hostname lookup on reconnect
227 * Fix for flag settings (was doing hex by accident!)
228 * Support for 1.2.4 server additions "prepend" and "append" added.
229 * Added memcached_version()... not sure if I will make this public
232 0.8 Mon Nov 5 10:40:41 PST 2007
233 * Adding support for CRC hash method
234 * Adding support for UNIX sockets
235 * Added additional HASHing methods of FNV1_64,FNV1A_64, FNV1_32, FNV1A_32
236 * Added pkgconfig support (PKG_CHECK_MODULES)
237 * Fixed conflict with defined type in MySQL
238 * Added memcached_result_st structure and functions to manipulate it.
240 0.7 Tue Oct 30 09:24:05 PDT 2007
241 * Poved to poll() from select()
242 * Fixes in internal string class for allocation of large numbers of
244 * memcached_mget() function now sends keys as it parses them instead of
245 building strings as it goes.
246 * Propper flush now for making sure we get all IO sent even when in
248 * Added --enable-debug rule for configure
249 * All asserts() removed (hey this is going into production!)
252 0.6 Wed Oct 17 08:41:35 PDT 2007
253 * get value returns are now null terminated (request by Cal Heldenbrand)
254 * Fixed connections for more hosts then two.
255 * Rewrite of the read/write IO systems to handle different sorts of host
257 * Added man pages for all functions and tools
258 * Raised buffer size for readinng/writing to 16K
259 * You can now optionally set the socket size for recv/send via
260 memached_behavior_set/get.
262 0.5 Tue Oct 9 00:22:25 PDT 2007
263 * Ruby maintainer mentioned TCP_NODELAY patch he had added. Added this to C
264 library as well. (Eric Hodel drbrain@segment7.net)
265 * Added support script for set_benchmark
266 * Updated memslap to allow testing of TCP_NODELAY
267 * Updated memslap to support --flush (aka dump memcache servers before
269 * Fixed bug in multiple hosts not being activated
270 * Added environmental variable MEMCACHED_SERVERS which can be used to
271 set the servers list.
272 * fixed memcached_stat method (and now memstat works)
273 * server connect now happens on demand.
274 * Help for all command line applications
276 0.4 Wed Oct 3 10:28:50 PDT 2007
277 * Added buffered IO to write calls for keys
278 * Added buffered IO for reads
279 * memstat was broken (bad if/else on connect)
280 * New non-blocking IO (not default yet). Mucho faster
281 * Refactor of test system.
282 * memslap crash solved
284 0.3 Mon Oct 1 06:37:52 PDT 2007
285 * Jeff Fisher <guppy@techmonkeys.org> provided a spec file
286 * Added "make rpm" around dist file
287 * Added support for Solaris
288 * Added support for DTrace
289 * Fixed read to be recv and write to be send
290 * Bug fix where memstat would core if no server was found
291 * Added memslap tool (load generator)
292 * Numerous bug fixes in library
293 * Added calls to library for creating host lists (see
294 text cases to understand how to use this).
296 0.2 Thu Sep 27 03:46:57 PDT 2007
297 * First public version
projects / awesomized / libmemcached / blob