12009-03-31 2 3 * Feature: -b option for configuring backlog 4 5 * Feature: stats settings 6 7 * Fix: binary stat alignment bug (bug26) 8 9 * Fix: buffer overflow in stats (bug27) 10 11 * Fix: recycle memory more aggressively (bug14) 12 13 * Fix: incr validation (bug31) 14 15 * Fix: 64-bit incr/decr delta problem (bug21) 16 17 * Fix: Ascii UDP set (bug36) 18 19 * Fix: stats slabs' used chunks (bug29) 20 21 * Fix: stats reset resetting more (bug22) 22 23 * Misc: More tests, documentation, cleanliness (godliness) 24 25 * Stable merge (stats, debuggability, listen bugs) 26 272009-03-11 28 29 * Protocol: Binary complete (Dustin, Trond, Toru, etc...) 30 31 * Performance: improvements from facebook (Dormando) 32 33 * Performance: per-thread stats (Trond) 34 35 * Performance: Hash expansion in its own thread (Trond) 36 37 * Stats: Lots of new stats (Dustin) 38 39 * Bug fixes (various) 40 41 See the 1.3.2 release notes or revision control for more detail. 42 432008-09-06 44 * Display error status on listen failures (Dormando) 45 46 * Remove managed instance code. Incomplete/etc. (Dormando) 47 48 * Handle broken IPV6 stacks better (Brian Aker) 49 50 * Generate warnings on setsockopt() failures (Brian Aker) 51 52 * Fix some indentation issues (Brian Aker) 53 54 * UDP/TCP can be disabled by setting their port to zero (Brian Aker) 55 56 * Zero out libevent thread structures before use (Ricky Zhou) 57 58 * New stat: Last accessed time for last evicted item per slab class. 59 (Dormando) 60 61 * Use a dedicated socket accept thread (Facebook) 62 63 * Add -R option. Limit the number of requests processed by a connection 64 at once. Prevents starving other threads if bulk loading. (Facebook) 65 662008-07-29 [Version 1.2.6 released] 67 682008-07-24 [Version 1.2.6-rc1 released] 69 70 * Add support for newer automake (Facebook) 71 72 * DTrace support for Solaris/etc (Trond Norbye) 73 74 * LRU tests (Steve Yen) 75 76 * Handle negative length items properly (Dormando) 77 78 * Don't leave stale data after failed set attempts (Dormando) 79 80 * Fix refcount leaks, which would result in OOM's on all sets 81 (Dormando) 82 83 * Fix buffer overruns (Dustin Sallings, Tomash Brechko) 84 85 * Fix memory corruption with CAS (Dustin Sallings) 86 872008-06-11 88 89 * Fix -k to work with -d. (reported by Gary Zhu) 90 912008-03-02 [Version 1.2.5-rc1 released] 92 93 * Add per-item-class tracking of evictions and OOM errors (dormando) 94 95 * Optimize item_alloc() a little (dormando) 96 97 * Give 'SERVER_ERROR out of memory' errors more context (dormando) 98 99 * Enable usage of large memory pages under solaris 100 ([email protected]) 101 102 * Enable UDP by default, clean up server socket code 103 ([email protected]) 104 105 * 'noreply' support (Tomash Brechko) 106 107 * IPv6 support, and IPv6 multi-interface support ([email protected]) 108 109 * Add compiler options for Sun Studio compilers with --enable-threads 110 ([email protected]) 111 112 * Add --enable-64bit for mulitarget platforms ([email protected]) 113 114 * Use gettimeofday(2) instead of time(2). 115 116 * Make -k option work (Tomash Brechko) 117 118 * Fix chunk slab alignment ([email protected]) 119 1202007-12-06 [Version 1.2.4 released] 121 1222007-12-05 123 124 * Fix compilation on panther (JS and Dormando) 125 126 * More CAS tests (Chris Goffinet) 127 128 * Final fixes for all 1.2.4 features are in, -rc2 sent out. 129 1302007-11-19 [Version 1.2.4-rc1 released] 131 1322007-11-19 Dormando <[email protected]> 133 134 * Patch series from Tomash Brechko <[email protected]>: 135 Minor fixes and optimisations. 136 137 * Patches from Chris, Dustin, and Dormando to fix CAS. 138 139 * Prepping for 1.2.4 release. 140 1412007-11-13 Dormando <[email protected]> 142 143 * Adjusted patch from js <[email protected]>: Compile on OS X Panther 144 and earlier. 145 1462007-11-12 Steven Grimm <[email protected]> 147 148 * Patch from Tomash Brechko <[email protected]>: Always send 149 "SERVER_ERROR out of memory" when memory exhausted. 150 1512007-10-15 Paul Lindner <[email protected]> 152 153 * Patch from David Bremner <[email protected]> that implements 154 a new option "-a" which takes an octal permission mask 155 (like chmod) sets the permissions on the unix domain socket 156 (specified by "-s"). 157 1582007-10-03 Paul Lindner <[email protected]> 159 * Incorporate "cas" operation developed by Dustin 160 Sallings <[email protected]> This change allows you 161 to do atomic changes to an existing key. 162 163 * Fix for stats.evictions not incrementing 164 when exptime == 0 items are kicked off the cache. 165 from Jean-Francois BUSTARRET <[email protected]>. 166 167 * Fix for do_item_cachedump() which was returning 168 an incorrect timestamp. 169 170 * Switch to unsigned 64-bit increment/decrement counters 171 from Evan Miller and Dustin Sallings. 172 173 * Add append command support written by Filipe Laborde. 174 Thread safe version plus prepend command from Maxim Dounin 175 <[email protected]> 176 177 * The memcached-tool script can now display stats. Patch 178 provided by Dan Christian <[email protected]> 179 180 * Fix for Unix Domain sockets on FreeBSD 181 FreeBSD's sendmsg() requires msg_name in msghdr structure 182 to be NULL if not used, setting msg_namelen to 0 isn't enough. 183 Patch from Maxim Dounin <[email protected]> 184 1852007-08-21 Paul Lindner <[email protected]> 186 * Incorporate incrememnt patch from Evan Miller 187 <[email protected]> to define increment overflow 188 behavior. 189 1902007-08-07 Leon Brocard <[email protected]> 191 * Bring the memcached.1 manpage up to date 192 1932007-08-06 Paul Lindner <[email protected]> 194 * Fix crash when using -P and -d flags on x86_64 195 with latest libevent release. 196 1972007-07-08 Steven Grimm <[email protected]> 198 199 * Item stats commands weren't thread-safe; wrap them with locks 200 when compiled in multithreaded mode. 201 * The "stats items" command now works again; it broke with the 202 introduction of the powers-of-N chunk size change. 203 2042007-07-06 [Version 1.2.3 released] 205 2062007-06-19 Paul Lindner <[email protected]> 207 208 * Solaris portability fixes from Trond Norbye 209 2102007-05-29 Paul Lindner <[email protected]> 211 212 * Properly document evictions statistic value 213 2142007-05-10 Paul Lindner <[email protected]> 215 216 * Flesh out tests for unix domain sockets and binary data. 217 * Update rpm spec file to run tests 218 2192007-05-07 Paul Lindner <[email protected]> 220 221 * Fix compilation bug on freebsd 6.x (and maybe others) 222 * Update RPM spec file per redhat bugzilla #238994 223 * Move unistd.h to memcached.h to get rid of warnings 224 * Add string.h to thread.c to get correctly prototyped strerror() 225 2262007-05-04 Paul Lindner <[email protected]> 227 228 * Add fedora/redhat style init script and RPM spec file 229 2302007-05-12 [Version 1.2.2 released] 231 2322007-04-16 Steven Grimm <[email protected]> 233 234 * Command tokenizer performance and cleanliness improvement. 235 Patch contributed by Paolo Borelli <[email protected]>. 236 2372007-04-16 Paul Lindner <[email protected]> 238 239 * Add notes to README about MacOS, libevent and kqueue. 240 241 * Windows Patch integration -- part 1, warnings elimination. 242 2432007-04-12 Paul Lindner <[email protected]> 244 245 * Allow changes to the verbosity level of the server with a new 246 "verbosity" command and some compiler cleanups. 247 Patch contributed by Paolo Borelli <[email protected]>. 248 2492007-04-08 Paul Lindner <[email protected]> 250 251 * Add cleanup patch from "Tim Yardley" <[email protected]> to 252 clean up source spacing issues, fix -Wall warnings, add some 253 null checks, adds asserts at the top of each function for any 254 use of conn *c without checking to see if c is NULL first. 255 256 * Also adjust clean-whitespace.pl to clean *.ac files. Add 257 script to test-suite to test for tabs. 258 2592007-04-04 Paul Lindner <[email protected]> 260 261 * Add clarification of flush_all in the protocol docs 262 from Elizabeth Mattijsen <[email protected]> 263 2642007-03-31 Paul Lindner <[email protected]> 265 266 * Add patch from Eli Bingham <[email protected]> to 267 re-enable the -n switch to memcached. 268 2692007-03-20 Paul Lindner <[email protected]> 270 * Add patch to collect eviction statistics from 271 Jean-Francois BUSTARRET <[email protected]>. 272 273 * Updated docs, added new test cases for t/stats.t 274 2752007-03-18 Paul Lindner <[email protected]> 276 277 * Add more test cases using larger buffer sizes up to and greater 278 than 1MB. 279 280 * Remove unused parameter to item_size_ok() 281 282 * Use a single printf() in usage() 283 284 * Add a failing test for conforming with maximum connections. 285 2862007-03-17 287 * crash fix from Thomas van Gulick <[email protected]> in 288 conn_shrink(), passing &ptr, instead of ptr to realloc(). 289 2902007-03-05 Paul Lindner <[email protected]> 291 * Fix a number of places where (s)printf calls were using unsigned 292 or signed formats that did not match their arguments. 293 294 * Add support for stdbool.h and stdint.h to use the bool and 295 uint8_t types. 296 297 * Major refactoring - move API calls for assoc/items/slabs to 298 their own individual header files. Add apropriate const and 299 static declarations as appropriate. 300 301 * Avoid type-punning. Do a more efficient realloc inside the 302 conn_shrink routine. 303 304 * Fix overflow bug where uninitialized access to slabclass caused 305 size-0 mallocs during slab preallocation. 306 307 * Use EXIT_SUCCESS/EXIT_FAILURE constants. 308 309 * Convert some sprintf calls to snprintf to protect against 310 buffer overflows. 311 312 * Explicitly compare against NULL or zero in many places. 313 3142007-03-05 315 * Steven Grimm <[email protected]>: Per-object-type stats collection 316 support. Specify the object type delimiter with the -D command line 317 option. Turn stats gathering on and off with "stats detail on" and 318 "stats detail off". Dump the per-object-type details with 319 "stats detail dump". 320 3212007-03-01 322 * Steven Grimm <[email protected]>: Fix an off-by-one error in the 323 multithreaded version's message passing code. 324 3252006-12-23 326 * fix expirations of items set with absolute expiration times in 327 the past, before the server's start time. bug was introduced in 328 1.2.0 with rel_time_t. Thanks to Adam Dixon 329 <[email protected]> for the bug report and test case! 330 3312006-11-26 332 * Steven Grimm <[email protected]>: Performance improvements: 333 334 Dynamic sizing of hashtable to reduce collisions on very large 335 caches and conserve memory on small caches. 336 337 Only reposition items in the LRU queue once a minute, to reduce 338 overhead of accessing extremely frequently-used items. 339 340 Stop listening for new connections until an existing one closes 341 if we run out of available file descriptors. 342 343 Command parser refactoring: Add a single-pass tokenizer to cut 344 down on string scanning. Split the command processing into 345 separate functions for easier profiling and better readability. 346 Pass key lengths along with the keys in all API functions that 347 need keys, to avoid needing to call strlen() repeatedly. 348 3492006-11-25 350 * Steve Peters <[email protected]>: OpenBSD has a malloc.h, 351 but warns to use stdlib.h instead 352 3532006-11-22 354 * Steven Grimm <[email protected]>: Add support for multithreaded 355 execution. Run configure with "--enable-threads" to enable. See 356 doc/threads.txt for details. 357 3582006-11-13 359 * Iain Wade <[email protected]>: Fix for UDP responses on non-"get" 360 commands. 361 3622006-10-15 363 * Steven Grimm <[email protected]>: Dynamic sizing of hashtable to 364 reduce collisions on very large caches and conserve memory on 365 small caches. 366 3672006-10-13 368 * Steven Grimm <[email protected]>: New faster hash function. 369 3702006-09-20 371 372 * don't listen on UDP by default; more clear message when UDP port in use 373 3742006-09-09 375 * release 1.2.0 (along with 1.1.13, which is the more tested branch) 376 377 nobody has run 1.2.0 in production, to my knowledge. facebook has run 378 their pre-merge-with-trunk version, but bugs were discovered (and fixed) 379 after the merge. there might be more. you've been warned. :) 380 3812006-09-04 382 * improved autoconf libevent detection, from the Tor project. 383 3842006-09-03 385 * test suite and lot of expiration, delete, flush_all, etc corner 386 case bugs fixed (Brad Fitzpatrick) 387 3882006-09-02 389 * Nathan Neulinger <[email protected]>: fix breakage in expiration code 390 causing expiration times to not be processed correctly. 391 3922006-08-21 393 * Nathan Neulinger <[email protected]>: fix incompatabilities with 394 unix domain socket support and the UDP code and clean up stale 395 sockets 396 3972006-08-20 398 * Nathan Neulinger <[email protected]>: unix domain socket support 399 4002006-05-03 401 * Steven Grimm <[email protected]>: big bunch of changes: 402 big CPU reduction work, UDP-based interface, increased memory 403 efficiency. (intertwined patch, committed all together) 404 <http://lists.danga.com/pipermail/memcached/2006-May/002164.html> 405 or see svn commit logs 406 4072006-04-30 408 * River Tarnell: autoconf work for Solaris 10. Brad: 409 merge and verify it works on Nexenta. 410 4112006-03-04 412 * avva: bucket/generation patch (old, but Brad's just finally 413 committing it) 414 4152006-01-01 416 * Brad Fitzpatrick <[email protected]>: allocate 1 slab per class 417 on start-up, to avoid confusing users with out-of-memory errors 418 later. this is 18 MB of allocation on start, unless max memory 419 allowed with -m is lower, in which case only the smaller slab 420 classes are allocated. 421 4222005-08-09 423 * Elizabeth Mattijsen <[email protected]>: needed a way to flush all 424 memcached backend servers, but not at exactly the same time (to 425 reduce load peaks), I've added some simple functionality to the 426 memcached protocol in the "flush_all" command that allows you to 427 specify a time at which the flush will actually occur (instead of 428 always at the moment the "flush_all" command is received). 429 4302005-05-25 431 * patch from Peter van Dijk <[email protected]> to make 432 stderr unbuffered, for running under daemontools 433 4342005-04-04 435 * patch from Don MacAskill <[email protected]> 'flush_all' doesn't 436 seem to work properly. Basically, if you try to add a key which 437 is present, but expired, the store fails but the old key is no 438 longer expired. 439 440 * release 1.1.12 441 4422005-01-14 443 * Date: Thu, 18 Nov 2004 15:25:59 -0600 444 From: David Phillips <[email protected]> 445 Here is a patch to configure.ac and Makefile.am to put the man page in 446 the correct location. Trying to install the man page from a 447 subdirectory results in the subdirectory being used in the install 448 path (it tries to install to doc/memcached.1). This is the correct 449 thing to do: 450 451 - create a Makefile.am in the doc directory that installs the man page 452 with man_MANS 453 - modify Makefile.am in the base directory to reference the doc 454 directory using SUBDIRS 455 - modify the AC_CONFIG_FILES macro in configure.ac to output the 456 Makefile in doc 457 458 4592005-01-14 460 * pidfile saving support from Lisa Seelye <[email protected]>, sent 461 Jan 13, 2005 462 4632005-01-14 464 * don't delete libevent events that haven't been added (the deltimer) 465 patch from Ted Schundler <[email protected]> 466 4672004-12-10 468 * document -M and -r in manpage (Doug Porter <[email protected]>) 469 4702004-07-22 471 * fix buffer overflow in items.c with 250 byte keys along with 472 other info on the same line going into a 256 byte char[]. 473 thanks to Andrei Nigmatulin <[email protected]> 474 4752004-06-15 476 * immediate deletes weren't being unlinked a few seconds, 477 preventing "add" commands to the same key in that time period. 478 thanks to Michael Alan Dorman <[email protected]> for the 479 bug report and demo script. 480 4812004-04-30 482 * released 1.1.11 483 4842004-04-24 485 * Avva: Add a new command line option: -r , to maximize core file 486 limit. 487 4882004-03-31 489 * Avva: Use getrlimit and setrlimit to set limits for number of 490 simultaneously open file descriptors. Get the current limits and 491 try to raise them if they're not enough for the specified (or the 492 default) setting of max connections. 493 4942004-02-24 495 * Adds a '-M' flag to turn off tossing items from the cache. 496 (Jason Titus <[email protected]>) 497 4982004-02-19 (Evan) 499 * Install manpage on "make install", etc. 500 5012003-12-30 (Brad) 502 * remove static build stuff. interferes with PAM setuid stuff 503 and was only included as a possible fix with the old memory 504 allocator. really shouldn't make a difference. 505 * add Jay Bonci's Debian scripts and manpage 506 * release version 1.1.10 507 5082003-12-01 (Avva) 509 * New command: flush_all, causes all existing items to 510 be invalidated immediately (without deleting them from 511 memory, merely causing memcached to no longer return them). 5122003-10-23 513 * Shift init code around to fix daemon mode on FreeBSD, 514 * and drop root only after creating the server socket (to 515 * allow the use of privileged ports) 516 * version 1.1.10pre 517 5182003-10-09 519 * BSD compile fixes from Ryan T. Dean 520 * version 1.1.9 521 5222003-09-29 523 * ignore SIGPIPE at start instead of crashing in rare cases it 524 comes up. no other code had to be modified, since everything 525 else is already dead-connection-aware. (avva) 526 5272003-09-09 (Avva, Lisa Marie Seelye <[email protected]>) 528 * setuid support 529 5302003-09-05 (Avva) 531 * accept all new connections in the same event (so we work with ET epoll) 532 * mark all items as clsid=0 after slab page reassignment to please future 533 asserts (on the road to making slab page reassignment work fully) 534 5352003-08-12 (Brad Fitzpatrick) 536 * use TCP_CORK on Linux or TCP_PUSH on BSD 537 * only use TCP_NODELAY when we don't have alternatives 538 5392003-08-10 540 * disable Nagel's Algorithm (TCP_NODELAY) for better performance (avva) 541 5422003-08-10 543 * support multiple levels of verbosity (-vv) 544 5452003-08-10 (Evan Martin) 546 * Makefile.am: debug, optimization, and static flags are controlled 547 by the configure script. 548 * configure.ac: 549 - allow specifying libevent directory with --with-libevent=DIR 550 - check for malloc.h (unavailable on BSDs) 551 - check for socklen_t (unavailable on OSX) 552 * assoc.c, items.c, slabs.c: Remove some unused headers. 553 * memcached.c: allow for nonexistence of malloc.h; #define a POSIX 554 macro to import mlockall flags. 555 5562003-07-29 557 * version 1.1.7 558 * big bug fix: item exptime 0 meant expire immediately, not never 559 * version 1.1.8 560 5612003-07-22 562 * make 'delete' take second arg, of time to refuse new add/replace 563 * set/add/replace/delete can all take abs or delta time (delta can't 564 be larger than a month) 565 5662003-07-21 567 * added doc/protocol.txt 568 5692003-07-01 570 * report CPU usage in stats 571 5722003-06-30 573 * version 1.1.6 574 * fix a number of obscure bugs 575 * more stats reporting 576 5772003-06-10 578 * removing use of Judy; use a hash. (judy caused memory fragmentation) 579 * shrink some structures 580 * security improvements 581 * version 1.1.0 582 5832003-06-18 584 * changing maxsize back to an unsigned int 585 5862003-06-16 587 * adding PHP support 588 * added CONTRIBUTORS file 589 * version 1.0.4 590 5912003-06-15 592 * forgot to distribute website/api (still learning auto*) 593 * version 1.0.3 594 5952003-06-15 596 * update to version 1.0.2 597 * autoconf/automake fixes for older versions 598 * make stats report version number 599 * change license from GPL to BSD 600 601Fri, 13 Jun 2003 10:05:51 -0700 Evan Martin <[email protected]> 602 603 * configure.ac, autogen.sh, Makefile.am: Use autotools. 604 * items.c, memcached.c: #include <time.h> for time(), 605 printf time_t as %lu (is this correct?), 606 minor warnings fixes. 607 608