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