Use TCP_CORK/TCP_NOFLUSH socket options where available to coalesce writes for multi...
[awesomized/libmemcached] / ChangeLog
1 0.35 Mon Nov 9 11:18:33 PST 2009
2 * Added support for by_key operations for inc/dec methods.
3 * Added mget test to memslap.
4 * Support for compatible ketama for SpyMemcached
5 * Update C++ interface.
6 * Fix for memcp
7
8 0.34 Tue Oct 13 08:39:51 PDT 2009
9 * Added support for setting behavior flags on a connection pool.
10 * Don't increment server_failure_counter on normal disconnects.
11 * Added prototype for a callback based protocol parser (server side)
12 with examples so that you could let your own application speak the
13 memcached protocol
14 * Updated memcapable to test ASCII protocol.
15 * Changed behavior so that server can be removed at first sign of failure.
16 * Added memcached_server_get_last_disconnect() call
17
18 0.33 Wed Sep 23 10:11:58 PDT 2009
19 * Added memcapable to test servers for binary compatibility.
20 * Updated C++ interface. Added basic support for C++ exceptions. Added
21 multiple constructors the memcached client object. The C++ interface
22 now takes parameters which are C++ types (such as std::string).
23 * Several bug fixes for binary protocol support.
24 * Fixed crashing issue with dumping from memcachd server (server internals
25 were changed without documenting change).
26
27 0.32 Tue Sep 15 15:49:09 PDT 2009
28 * Change of behavior where linger is only modified for no-block and then
29 it is set to zero.
30 * Added Twitter's memcached_server_error() functions.
31 * Fix for OSX compiles in development builds.
32 * Updated C++ interface.
33 * Updated memcached_mget and memcached_mget_by_key to take a size_t
34 as a parameter instead of an unsigned int for number_of_keys.
35
36 0.31 Fri Jul 10 09:02:50 PDT 2009
37 * Added support or HA via replication.
38 * malloc() removed for server key usage.
39 * Update build system.
40 * Added support for memcached_set_memory_allocators().
41 * Fixed bug in configure.ac for have_htoll.
42
43 0.30 Sun May 31 17:31:52 PDT 2009
44 * Added memcachd_dump command (and framework for memdump tool).
45 * Realigned all structures to remove padding (and line up important bits for 64bit caches.
46 * Remove some of sprintf() in storage calls().
47 * Removed printf() in stat call for unknown stat member.
48 * memcached_generate_hash() function added.
49 * Added tests to make sure all hash functions are stable.
50
51 0.29 Tue May 19 08:26:48 PDT 2009
52 * Fixed malloc usage to calloc for spots where we need zero filled memory.
53 * All code warnings now treated as errors.
54 * Fixes for debian packaging.
55 * Added new pooling mechanism.
56 * MEMCACHED_BEHAVIOR_NO_BLOCK no longer also sets MEMCACHED_BEHAVIOR_BUFFER_REQUESTS.
57 * Updated generic rpm.
58
59 0.28 Tue Apr 14 18:56:28 PDT 2009
60 * Fixed bug in init sructure (reapplied)
61 * Fixed bug in get/set by key (nikkhils@gmail.com)
62
63 0.27 Sun Mar 29 22:33:01 PDT 2009
64 * Added new UDP fire-forget mode.
65 * Reworked performance for mget() to better make use of async protocol
66 * Cleaned up execution of fetch (just one set of code now)
67 * Fixed Jenkin's for big endian hosts.
68 * Updates for memstat to determine network latency.
69 * Updates for binary protocol.
70 * Many updates to documentation.
71
72 0.26 Thu Jan 29 13:05:50 PST 2009
73 * Fix for decrement on hash key
74 * Fixed assert that was catching bad memset() call in host_reset()
75 * Fix purge issue for blocked IO which has been stacked.
76
77 0.25 Fri Nov 28 09:59:35 PST 2008
78 * Jenkins HASH added.
79 * Update of Murmur hash code
80 * Support explicit weights (Robey Pointer, Evan Weaver)
81 * Bugfix for ketama continuum (Robey Pointer)
82 * New behavior MEMCACHED_BEHAVIOR_HASH_WITH_PREFIX_KEY (Robey Pointer)
83 * Don't ever call stats for weighting servers, because it is unstable.
84
85 0.24 Tue Sep 16 02:59:03 PDT 2008 (never released)
86 * Cleanup compile warnings.
87 * Fix issues in partitioning by keys.
88 * Fixed "fail case" to make sure when calling memcached_clone() no
89 memcached_st is over written.
90 * New memcached_server_by_key() method for finding a server from
91 a key.
92 * memcached_server_free() was added for freeing server structures.
93
94
95 0.23 Sun Sep 7 08:13:59 PDT 2008
96 * Added strings.h header for Solaris 9
97 * Solaris 64bit fix.
98 * Support for weighted Ketama from Yin Chen.
99 * Fix for Chinese
100 * Fix for 0 length key to trigger bad key.
101 * Added behaviors MEMCACHED_BEHAVIOR_SND_TIMEOUT, MEMCACHED_BEHAVIOR_RCV_TIMEOUT
102 * Support for Binary Protocol added
103
104 0.22 Mon Jul 14 09:24:11 PDT 2008
105 * Fix where master key was no being checked for "bad key"
106 * Fixed bugs in stats output (thread output was wrong)
107 * Clarified MEMCACHED_BAD_KEY_PROVIDED is return for bad prefix key.
108 * Found a bug in Flags return (Jacek Ostrowski)
109 * Fixed issue with compiling on Visual Studio
110
111 0.21 Fri May 23 18:34:09 PDT 2008
112 * Change of char * to const char * for all key based functions.
113 * New MEMCACHED_CALLBACK_PREFIX_KEY added. You can now create domains for
114 values.
115 * Fixed bug introducd in last version on memcp
116 * Fix for death of file io to call shutdown()
117
118 0.20 Mon May 5 08:34:26 PDT 2008
119 * New consistent distribution tests.
120 * Found a memory leak when a server constantly fails.
121 * Fix in watchpoint macro
122 * Changed default timeout to 1 second for poll timeouts
123 * Wheel uses less memory/dynamic allocation for size (no longer limited to
124 512 hosts by default.
125 * memslap memory leak fix
126 * Added Ketama distribution
127 * Fix assert.h compile problem on CentOS
128
129 0.19 Wed Apr 9 09:30:53 PDT 2008
130 * Documentation fix in libmemcached.
131 * Fixed bug where sort was always occuring on hosts
132 * Logic fix in branch prediction (thanks Jay!)
133 * Read through cached support.
134 * Fixed for cas by key operation.
135 * Fix for memcached_server_st list structures to have correct count.
136 * Added callback MEMCACHED_CALLBACK_DELETE_TRIGGER
137 * Removed function call in favor of macro (aka cut out some instructions)
138
139
140 0.18 Sun Mar 16 21:57:55 PDT 2008
141 * Fix plus tests for non-zero value objects and flags.
142 * MEMCACHED_HASH_MURMUR added for murmur algorithm provided.
143 * MEMCACHED_BEHAVIOR_RETRY_TIMEOUT added to keep connecting from looping
144 on timeout.
145 * gcc branch prediction optimizations
146 * Refactored entire tree to make include files cleaner
147 * Fixed leaked socket.
148
149 0.17 Wed Feb 27 03:33:29 PST 2008
150 * MEMCACHED_BEHAVIOR_CONNECT_TIMEOUT added for connect timeout in
151 non-block mode.
152 * Incompatible change in memcached_behavior_set() api. We now use a
153 uint64_t, instead of a pointer.
154 * Fix for storage of values for zero.
155 * memcached_server_cursor() function added to API for cycling through servers.
156
157 0.16 Mon Feb 18 00:30:25 PST 2008
158 * Work on the UDP protocol
159 * Added get_by_key, set_by_key tests for C++ API
160 * Fix for limit_maxbytes to be 64bit in stats
161 * Added Atom Smasher test (scale baby, scale!)
162 * Servers are now sorted, meaning that servers are now ordered so that
163 clients with the same lists, will have same distribution. (Idea from
164 Ross McFarland). MEMCACHED_BEHAVIOR_SORT_HOSTS was added to enable
165 this support.
166 * Added MEMCACHED_BAD_KEY_PROVIDED error for auto, set, and get operations.
167 MEMCACHED_BEHAVIOR_VERIFY_KEY was added to enable this feature.
168 * More error messages on command line tools.
169 * Fixed bugs in memcached_cas() operator.
170 * Fix to loop through interfaces
171
172 0.15 Tue Jan 29 14:55:44 PST 2008
173 * More work on the C++ API.
174 * Bug fixes around block corner cases.
175 * Slight performance increase in both read() and write().
176
177 0.14 Tue Jan 22 06:21:49 PST 2008
178 * For for bug found by Evan Weaver where increment() was not returning
179 propper error of value was not found.
180 * Fix for bad null pointer on flag by Toru Maesaka.
181 * Refactor of all IO to just pass in the active server
182 * Problem configuring (PKG_CHECK_MODULES) fixed by removal of "rpath" in
183 support/libmemcached.pc.in (Thanks to Ross McFarland).
184 * Added memcached_callback_get()/set()
185 * First prototype of C++ interface
186 * Updated docs for uint16_t changes in previous release
187
188 0.13 Sun Jan 13 06:51:50 PST 2008
189 * MEMCACHED_BEHAVIOR_USER_DATA added to store user pointer.
190 * Fix for failure to connect to invalidate socket.
191 * Patch from Marc Rossi to add --hash option for memcp, memrm, and memcat.
192 * Kevin's patch for fixing EOF issues during a read.
193 * Toru Maesaka patch for stats mismatch
194 * Fix for when CRC return 0
195 * Fixed uint16_t issues around flags. Turns out the documentation on the
196 protocol was wrong.
197 * Lingering socket fixes for FreeBSD.
198 * Patches from Kevin Dalley for FreeBSD 4.0
199 * Added multi delete functions.
200 * All get key returns have C style null termination
201 * If memcached_server_list_append is passed NULLs instead of pointers it
202 returns NULL.
203 * Added memcached_fetch_execute() method
204 * Found a bug where memcached_fetch() was not null terminating the result
205 value.
206 * memcached_behavior() now has the ability to set "buffering" so that
207 data is not automatically flushed.
208 * Behavior change, buffered commands now return MEMCACHED_BUFFERED
209
210 0.12 Tue Dec 11 15:20:55 PST 2007
211 * Updates for consistent hashing
212 * IPV6 support
213 * Static allocation for hostname (performance)
214 * Fixed bug where in non-block mode all data might not have been sent on
215 close().
216 * Refactor of memcached_get() to use common code.
217 * Change in value fetch, MEMCACHED_END is now returned when keys are no
218 longer in the pipe.
219 * Fixed bug where key could be out of range of characters
220 * Added _by_key() methods to allow partitioning of values to particular
221 servers.
222 * MEMCACHED_DEFAILT_TIMEOUT is now set to a non -1 value.
223 * Performance improvements in get operations.
224
225 0.11 Mon Nov 26 01:05:52 PST 2007
226 * Added option to memcache_behavior_set() so that poll() can be timed out.
227 * Fixed memory leak in case of using memcached_fetch_result() where no
228 value was returned.
229 * Bug fixed in memcached_connect() which would cause servers that
230 did not need to be enabled to be enabled (performance issue).
231 * Rewrote bounds checking code for get calls.
232 * "make test" now starts its own memcached servers.
233 * Added Hseih hash (MEMCACHED_HASH_HSIEH), which is showing about 7%
234 performance over standard hash.
235
236 0.10 Tue Nov 20 23:22:31 PST 2007
237 * Added append binary test.
238 * Added MEMCACHED_BEHAVIOR_CACHE_LOOKUPS behavior so that you can save on
239 multiple DNS lookups.
240 * Added CAS support, though this is optional and must be enabled during
241 runtime.
242 * Added the utility memerror to create human readable error strings
243 from memcached errors (aka convert ints to strings)
244 * Fixed type in MEMCACHED_HOST_LOOKUP_FAILURE
245 * Fixed bug where hostname might not be null terminated
246 * Moved to using gethostbyname_r() on Linux to solve thread safety issue
247 * Added -rpath support for pkg-config
248 * Documentation fix for hash setting using memcached_behavior_set()
249
250 0.9 Thu Nov 15 07:44:00 PST 2007
251 * fix for when no servers are definied.
252 * different buffers are now kept for different connections to
253 speed up async efforts
254 * Modified increment/decrement functions to return uint64_t values
255 * Fixed bug in cases where zero length keys were provided
256 * Thread cleanup issue in memslap
257 * No hostname lookup on reconnect
258 * Fix for flag settings (was doing hex by accident!)
259 * Support for 1.2.4 server additions "prepend" and "append" added.
260 * Added memcached_version()... not sure if I will make this public
261 or not.
262
263 0.8 Mon Nov 5 10:40:41 PST 2007
264 * Adding support for CRC hash method
265 * Adding support for UNIX sockets
266 * Added additional HASHing methods of FNV1_64,FNV1A_64, FNV1_32, FNV1A_32
267 * Added pkgconfig support (PKG_CHECK_MODULES)
268 * Fixed conflict with defined type in MySQL
269 * Added memcached_result_st structure and functions to manipulate it.
270
271 0.7 Tue Oct 30 09:24:05 PDT 2007
272 * Poved to poll() from select()
273 * Fixes in internal string class for allocation of large numbers of
274 strings.
275 * memcached_mget() function now sends keys as it parses them instead of
276 building strings as it goes.
277 * Propper flush now for making sure we get all IO sent even when in
278 non-block mode.
279 * Added --enable-debug rule for configure
280 * All asserts() removed (hey this is going into production!)
281
282
283 0.6 Wed Oct 17 08:41:35 PDT 2007
284 * get value returns are now null terminated (request by Cal Heldenbrand)
285 * Fixed connections for more hosts then two.
286 * Rewrite of the read/write IO systems to handle different sorts of host
287 failures.
288 * Added man pages for all functions and tools
289 * Raised buffer size for readinng/writing to 16K
290 * You can now optionally set the socket size for recv/send via
291 memached_behavior_set/get.
292
293 0.5 Tue Oct 9 00:22:25 PDT 2007
294 * Ruby maintainer mentioned TCP_NODELAY patch he had added. Added this to C
295 library as well. (Eric Hodel drbrain@segment7.net)
296 * Added support script for set_benchmark
297 * Updated memslap to allow testing of TCP_NODELAY
298 * Updated memslap to support --flush (aka dump memcache servers before
299 testing)
300 * Fixed bug in multiple hosts not being activated
301 * Added environmental variable MEMCACHED_SERVERS which can be used to
302 set the servers list.
303 * fixed memcached_stat method (and now memstat works)
304 * server connect now happens on demand.
305 * Help for all command line applications
306
307 0.4 Wed Oct 3 10:28:50 PDT 2007
308 * Added buffered IO to write calls for keys
309 * Added buffered IO for reads
310 * memstat was broken (bad if/else on connect)
311 * New non-blocking IO (not default yet). Mucho faster
312 * Refactor of test system.
313 * memslap crash solved
314
315 0.3 Mon Oct 1 06:37:52 PDT 2007
316 * Jeff Fisher <guppy@techmonkeys.org> provided a spec file
317 * Added "make rpm" around dist file
318 * Added support for Solaris
319 * Added support for DTrace
320 * Fixed read to be recv and write to be send
321 * Bug fix where memstat would core if no server was found
322 * Added memslap tool (load generator)
323 * Numerous bug fixes in library
324 * Added calls to library for creating host lists (see
325 text cases to understand how to use this).
326
327 0.2 Thu Sep 27 03:46:57 PDT 2007
328 * First public version
329