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width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">Berkeley DB 4.5.20 Change Log</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="upgrade_4_5_disk.html">Prev</a>��</td> 22 <th width="60%" align="center">Chapter��42.��Upgrading Berkeley DB 4.4 applications to Berkeley DB 4.5</th> 23 <td width="20%" align="right">��<a accesskey="n" href="upgrade_4_6_toc.html">Next</a></td> 24 </tr> 25 </table> 26 <hr /> 27 </div> 28 <div class="sect1" lang="en" xml:lang="en"> 29 <div class="titlepage"> 30 <div> 31 <div> 32 <h2 class="title" style="clear: both"><a id="changelog_4_5_20"></a>Berkeley DB 4.5.20 Change Log</h2> 33 </div> 34 </div> 35 </div> 36 <div class="toc"> 37 <dl> 38 <dt> 39 <span class="sect2"> 40 <a href="changelog_4_5_20.html#id1652081">Database or Log File On-Disk Format Changes:</a> 41 </span> 42 </dt> 43 <dt> 44 <span class="sect2"> 45 <a href="changelog_4_5_20.html#id1652140">New Features:</a> 46 </span> 47 </dt> 48 <dt> 49 <span class="sect2"> 50 <a href="changelog_4_5_20.html#id1652228">Database Environment Changes:</a> 51 </span> 52 </dt> 53 <dt> 54 <span class="sect2"> 55 <a href="changelog_4_5_20.html#id1652258">Concurrent Data Store Changes:</a> 56 </span> 57 </dt> 58 <dt> 59 <span class="sect2"> 60 <a href="changelog_4_5_20.html#id1652087">General Access Method Changes:</a> 61 </span> 62 </dt> 63 <dt> 64 <span class="sect2"> 65 <a href="changelog_4_5_20.html#id1652299">Btree Access Method Changes:</a> 66 </span> 67 </dt> 68 <dt> 69 <span class="sect2"> 70 <a href="changelog_4_5_20.html#id1652313">Hash Access Method Changes:</a> 71 </span> 72 </dt> 73 <dt> 74 <span class="sect2"> 75 <a href="changelog_4_5_20.html#id1652102">Queue Access Method Changes:</a> 76 </span> 77 </dt> 78 <dt> 79 <span class="sect2"> 80 <a href="changelog_4_5_20.html#id1652245">Recno Access Method Changes:</a> 81 </span> 82 </dt> 83 <dt> 84 <span class="sect2"> 85 <a href="changelog_4_5_20.html#id1652253">C++-specific API Changes:</a> 86 </span> 87 </dt> 88 <dt> 89 <span class="sect2"> 90 <a href="changelog_4_5_20.html#id1652294">Java-specific API Changes:</a> 91 </span> 92 </dt> 93 <dt> 94 <span class="sect2"> 95 <a href="changelog_4_5_20.html#id1652112">Java collections and bind API Changes:</a> 96 </span> 97 </dt> 98 <dt> 99 <span class="sect2"> 100 <a href="changelog_4_5_20.html#id1652394">Tcl-specific API Changes:</a> 101 </span> 102 </dt> 103 <dt> 104 <span class="sect2"> 105 <a href="changelog_4_5_20.html#id1652384">RPC-specific Client/Server Changes:</a> 106 </span> 107 </dt> 108 <dt> 109 <span class="sect2"> 110 <a href="changelog_4_5_20.html#id1652261">Replication Changes:</a> 111 </span> 112 </dt> 113 <dt> 114 <span class="sect2"> 115 <a href="changelog_4_5_20.html#id1652360">XA Resource Manager Changes:</a> 116 </span> 117 </dt> 118 <dt> 119 <span class="sect2"> 120 <a href="changelog_4_5_20.html#id1652538">Locking Subsystem Changes:</a> 121 </span> 122 </dt> 123 <dt> 124 <span class="sect2"> 125 <a href="changelog_4_5_20.html#id1652623">Logging Subsystem Changes:</a> 126 </span> 127 </dt> 128 <dt> 129 <span class="sect2"> 130 <a href="changelog_4_5_20.html#id1652634">Memory Pool Subsystem Changes:</a> 131 </span> 132 </dt> 133 <dt> 134 <span class="sect2"> 135 <a href="changelog_4_5_20.html#id1652533">Transaction Subsystem Changes:</a> 136 </span> 137 </dt> 138 <dt> 139 <span class="sect2"> 140 <a href="changelog_4_5_20.html#id1652629">Utility Changes:</a> 141 </span> 142 </dt> 143 <dt> 144 <span class="sect2"> 145 <a href="changelog_4_5_20.html#id1652610">Configuration, Documentation, Portability and Build Changes:</a> 146 </span> 147 </dt> 148 </dl> 149 </div> 150 <div class="sect2" lang="en" xml:lang="en"> 151 <div class="titlepage"> 152 <div> 153 <div> 154 <h3 class="title"><a id="id1652081"></a>Database or Log File On-Disk Format Changes:</h3> 155 </div> 156 </div> 157 </div> 158 <div class="orderedlist"> 159 <ol type="1"> 160 <li>The on-disk log format has changed.</li> 161 </ol> 162 </div> 163 </div> 164 <div class="sect2" lang="en" xml:lang="en"> 165 <div class="titlepage"> 166 <div> 167 <div> 168 <h3 class="title"><a id="id1652140"></a>New Features:</h3> 169 </div> 170 </div> 171 </div> 172 <div class="orderedlist"> 173 <ol type="1"> 174 <li>Multi-Version Concurrency Control for the Btree/Recno access 175 methods.</li> 176 <li>A new replication framework with a default TCP/IP setup.</li> 177 <li>Online replication upgrades for high availability replicated 24/7 178 systems.</li> 179 <li>A new event-style notification.</li> 180 <li>Several enhancements to the Java Collections API including the 181 implementation of the size() method.</li> 182 </ol> 183 </div> 184 </div> 185 <div class="sect2" lang="en" xml:lang="en"> 186 <div class="titlepage"> 187 <div> 188 <div> 189 <h3 class="title"><a id="id1652228"></a>Database Environment Changes:</h3> 190 </div> 191 </div> 192 </div> 193 <div class="orderedlist"> 194 <ol type="1"> 195 <li>Update the DB_ENV->failchk method to garbage collect per-process 196 mutexes stranded after unexpected process failure. [#13964]</li> 197 <li>Fix a bug that could cause memory used to track threads for 198DB_ENV->failchk to not be reused when a thread no longer exists. 199[#14425]</li> 200 <li>Add set_event_notify behavior as part of new event notification in 201 Berkeley DB. [#14534]</li> 202 <li>Fix a bug so that we no longer panic on DB_ENV->close() if a 203previous environment close failed to log. This condition will now return 204an error. [#14693]</li> 205 <li>Created os_getenv, removed clib/getenv, implemented Windows specific 206 behavior. [#14942]</li> 207 <li>Fix a bug where it was possible to corrupt the DB_REGISTER 208information file, making it impossible for Berkeley DB applications to 209join database environments. [#14998]</li> 210 </ol> 211 </div> 212 </div> 213 <div class="sect2" lang="en" xml:lang="en"> 214 <div class="titlepage"> 215 <div> 216 <div> 217 <h3 class="title"><a id="id1652258"></a>Concurrent Data Store Changes:</h3> 218 </div> 219 </div> 220 </div> 221 <div class="orderedlist"> 222 <ol type="1"> 223 <li>Fix a bug where renaming a subdatabase in a Concurrent Data Store 224 environment could fail. [#14185]</li> 225 </ol> 226 </div> 227 </div> 228 <div class="sect2" lang="en" xml:lang="en"> 229 <div class="titlepage"> 230 <div> 231 <div> 232 <h3 class="title"><a id="id1652087"></a>General Access Method Changes:</h3> 233 </div> 234 </div> 235 </div> 236 <div class="orderedlist"> 237 <ol type="1"> 238 <li>Fix a bug that could leave extra unallocated pages at the end of a 239 database file. [#14031]</li> 240 <li>Optimize secondary updates when overwriting primary records. 241 [#14075]</li> 242 <li>Fix a bug to prevent a trap when creating a named in-memory database 243 and there are already temporary files open. [#14133]</li> 244 <li>Fix a bug which caused a trap if the key parameter to DBC->c_get was 245 omitted with DB_CURRENT. [#14143]</li> 246 <li>Fix a bug with secondary cursors when the secondary has off-page 247duplicates. This bug resulted in incorrect primary data being returned. 248[#14240]</li> 249 <li>Improve performance when removing a subdatabase by not locking every 250 page. [#14366]</li> 251 <li>Fix a bug that would not properly upgrade database files from 252 releases 3.2.9 (and earlier) to releases 4.0 (and greater). [#14461]</li> 253 <li>Fix a bug that could cause a DB_READ_UNCOMMITTED get through a 254 secondary index to return DB_SECONDARY_CORRUPT. [#14487]</li> 255 <li>Fix a bug so that non-transactional cursor updates of a 256 transactional database will generate an error. [#14519]</li> 257 <li>Add a message when the system panics due to a page in the wrong 258 state at its time of allocation. [#14527]</li> 259 <li>Fix a remove failure when attempting to remove a file that is open 260 in another thread of control. [#14780]</li> 261 <li>Fix a bug where the key was not ignored when doing a cursor put with 262 the DB_CURRENT flag. [#14988]</li> 263 </ol> 264 </div> 265 </div> 266 <div class="sect2" lang="en" xml:lang="en"> 267 <div class="titlepage"> 268 <div> 269 <div> 270 <h3 class="title"><a id="id1652299"></a>Btree Access Method Changes:</h3> 271 </div> 272 </div> 273 </div> 274 <div class="orderedlist"> 275 <div class="orderedlist"> 276 <ol type="a"> 277 <li>When deleting a page don't check the next key in the parent if we 278 are going to delete the parent too.</li> 279 <li>Need to check that the tree has not collapsed between dropping a 280read lock and getting the write lock. If it has collapsed we will fetch 281the root of the tree.</li> 282 <li>Fix a case where we fail to lock the next page before reading it.</li> 283 </ol> 284 </div> 285 <ol type="1"> 286 <li>Changed the implementation of internal nodes in btrees so that they 287 no longer share references to overflow pages with leaf nodes. [#10717]</li> 288 <li>Fix a bug that could cause a diagnostic assertion by setting the 289 deleted bit on a record in an internal node. [#13944]</li> 290 <li>Fix three problems in BTREE compaction: [#14238]</li> 291 <li>Fix a bug that could cause the compaction of a Btree with sorted 292duplicates to fail when attempting to compact an off page duplicate tree 293if a key could not fit in an internal node. [#14771]</li> 294 <li>Fix a bug that causes a loop if an empty Btree was compacted. 295 [#14493]</li> 296 </ol> 297 </div> 298 </div> 299 <div class="sect2" lang="en" xml:lang="en"> 300 <div class="titlepage"> 301 <div> 302 <div> 303 <h3 class="title"><a id="id1652313"></a>Hash Access Method Changes:</h3> 304 </div> 305 </div> 306 </div> 307 <div class="orderedlist"> 308 <ol type="1"> 309 <li>Fix a bug to allow creation of hash pages during truncate recovery. 310 [#14247]</li> 311 </ol> 312 </div> 313 </div> 314 <div class="sect2" lang="en" xml:lang="en"> 315 <div class="titlepage"> 316 <div> 317 <div> 318 <h3 class="title"><a id="id1652102"></a>Queue Access Method Changes:</h3> 319 </div> 320 </div> 321 </div> 322 <div class="orderedlist"> 323 <ol type="1"> 324 <li>Fix a bug where reads of data items outside the range of the queue 325were not kept locked to the end of the transaction, breaking 326serializability. [#13719]</li> 327 <li>Fix a bug that could cause corruption in queue extent files if 328multiple processes tried to open the same extent at the same time. 329[#14438]</li> 330 <li>Improve concurrency for in-place updates in queue databases. 331 [#14918]</li> 332 </ol> 333 </div> 334 </div> 335 <div class="sect2" lang="en" xml:lang="en"><div class="titlepage"><div><div><h3 class="title"><a id="id1652245"></a>Recno Access Method Changes:</h3></div></div></div> 336 337None. 338</div> 339 <div class="sect2" lang="en" xml:lang="en"> 340 <div class="titlepage"> 341 <div> 342 <div> 343 <h3 class="title"><a id="id1652253"></a>C++-specific API Changes:</h3> 344 </div> 345 </div> 346 </div> 347 <div class="orderedlist"> 348 <ol type="1"> 349 <li>C++ applications that check the error code in exceptions should note 350that DbMemoryException has been changed to have the error code 351DB_BUFFER_SMALL rather than ENOMEM, to match the error returned by the 352C API. DbMemoryException will be thrown when a Dbt is too small to 353contain data returned by Berkeley DB. When a call to malloc fails, or 354some other resource is exhausted, a plain DbException will be thrown 355with error code set to ENOMEM. [#13939]</li> 356 </ol> 357 </div> 358 </div> 359 <div class="sect2" lang="en" xml:lang="en"> 360 <div class="titlepage"> 361 <div> 362 <div> 363 <h3 class="title"><a id="id1652294"></a>Java-specific API Changes:</h3> 364 </div> 365 </div> 366 </div> 367 <div class="orderedlist"> 368 <ol type="1"> 369 <li>Database.verify may now be called. This method is now static and 370 takes a DatabaseConfig parameter. [#13971]</li> 371 <li>Add DB_ENV->{fileid_reset, lsn_reset} to the public API. [#14076]</li> 372 </ol> 373 </div> 374 </div> 375 <div class="sect2" lang="en" xml:lang="en"> 376 <div class="titlepage"> 377 <div> 378 <div> 379 <h3 class="title"><a id="id1652112"></a>Java collections and bind API Changes:</h3> 380 </div> 381 </div> 382 </div> 383 <div class="orderedlist"> 384 <ol type="1"> 385 <li>The com.sleepycat.collections package is now fully compatible with 386 the Java Collections framework. [#14732]</li> 387 </ol> 388 </div> 389 </div> 390 <div class="sect2" lang="en" xml:lang="en"> 391 <div class="titlepage"> 392 <div> 393 <div> 394 <h3 class="title"><a id="id1652394"></a>Tcl-specific API Changes:</h3> 395 </div> 396 </div> 397 </div> 398 <div class="orderedlist"> 399 <ol type="1"> 400 <li>Fix a conflicting variable, sysscript.tcl. [#15051]</li> 401 </ol> 402 </div> 403 </div> 404 <div class="sect2" lang="en" xml:lang="en"><div class="titlepage"><div><div><h3 class="title"><a id="id1652384"></a>RPC-specific Client/Server Changes:</h3></div></div></div> 405 406None. 407</div> 408 <div class="sect2" lang="en" xml:lang="en"> 409 <div class="titlepage"> 410 <div> 411 <div> 412 <h3 class="title"><a id="id1652261"></a>Replication Changes:</h3> 413 </div> 414 </div> 415 </div> 416 <div class="orderedlist"> 417 <ol type="1"> 418 <li>Fix a bug when running with DEBUG_ROP or DEBUG_WOP. [#13394]</li> 419 <li>Add live replication upgrade support [#13670]</li> 420 <li>Fix a bug so that client databases are removed at the start of 421 internal initialization. [#14147]</li> 422 <li>Fix a bug in replication internal initialization so that data_dir 423will be handled correctly. Make internal initialization resilient to 424multiple data_dir calls with the same directory. [#14489]</li> 425 <li>Fix a bug in the 4.2 sync-up algorithm that could result in no open 426 files. [#14552]</li> 427 <li>Fix a bug when clients decide to re-request. [#14642]</li> 428 <li>Fix a bug where a PERM bulk buffer could have a zero LSN passed to 429 the application callback. [#14675]</li> 430 <li>Change names of some existing replication API methods as described 431in "Replication Method Naming" page of the "Upgrading Berkeley DB 432Applications to Release 4.5" section of Berkeley DB Reference Guide. 433[#14723]</li> 434 <li>Fix a bug which could cause an election to succeed only after 435waiting for the timeout to expire, even when all sites responded in a 436timely manner. The bug was most easily visible in an election between 2 437sites. [#14752]</li> 438 <li>Fix a bug where a process could have an old file handle to a log 439 file. [#14797]</li> 440 <li>Fix a bug where a "log_more" message could be on a log file 441 boundary. [#15034]</li> 442 <li>Fix a bug that could cause log corruption if a database open 443operation were attempted during a call to rep_start in another thread. 444[#15035]</li> 445 <li>Fix a bug during elections where a vote2 arrives before its vote1. 446 [#15055]</li> 447 <li>Fix a bug to make sure we are a client if sending a REP_REREQUEST. 448 [#15066]</li> 449 </ol> 450 </div> 451 </div> 452 <div class="sect2" lang="en" xml:lang="en"><div class="titlepage"><div><div><h3 class="title"><a id="id1652360"></a>XA Resource Manager Changes:</h3></div></div></div> 453 454None. 455</div> 456 <div class="sect2" lang="en" xml:lang="en"> 457 <div class="titlepage"> 458 <div> 459 <div> 460 <h3 class="title"><a id="id1652538"></a>Locking Subsystem Changes:</h3> 461 </div> 462 </div> 463 </div> 464 <div class="orderedlist"> 465 <ol type="1"> 466 <li>Fix a bug that could cause a write to hang if DB_READ_UNCOMMITTED 467 is enabled and it tries to reacquire a write lock. [#14919]</li> 468 </ol> 469 </div> 470 </div> 471 <div class="sect2" lang="en" xml:lang="en"> 472 <div class="titlepage"> 473 <div> 474 <div> 475 <h3 class="title"><a id="id1652623"></a>Logging Subsystem Changes:</h3> 476 </div> 477 </div> 478 </div> 479 <div class="orderedlist"> 480 <ol type="1"> 481 <li>Fix a bug so that log headers are now included in the checksum. This 482 avoids a possible race in doing hot backups. [#11636].</li> 483 <li>Add a check so that some log sequence errors are diagnosed at run 484 time rather than during recovery. [#13231]</li> 485 <li>Fix a bug where recovery fails if there is no disk space for the 486 forced checkpoint that occurs at the end of processing the log. [#13986]</li> 487 <li>Fix a bug which could cause a page to be missing from the end of a 488database file if the page at the end of the file was freed while it 489contained data and the system was restarted before the log record for 490that free was flushed to disk. [#14090]</li> 491 <li>Fix a bug that could cause log files to be incorrectly removed by 492 log_archive if it was run immediately after recovery. [#14874]</li> 493 </ol> 494 </div> 495 </div> 496 <div class="sect2" lang="en" xml:lang="en"> 497 <div class="titlepage"> 498 <div> 499 <div> 500 <h3 class="title"><a id="id1652634"></a>Memory Pool Subsystem Changes:</h3> 501 </div> 502 </div> 503 </div> 504 <div class="orderedlist"> 505 <ol type="1"> 506 <li>Fix a bug that could cause corruption to the buffer pool cache if a 507 race condition was hit while using DB->compact. [#14360]</li> 508 <li>Fix a bug where cache pages could be leaked in applications creating 509 temporary files for which the DB_MPOOL_NOFILE flag was set. [#14544]</li> 510 </ol> 511 </div> 512 </div> 513 <div class="sect2" lang="en" xml:lang="en"> 514 <div class="titlepage"> 515 <div> 516 <div> 517 <h3 class="title"><a id="id1652533"></a>Transaction Subsystem Changes:</h3> 518 </div> 519 </div> 520 </div> 521 <div class="orderedlist"> 522 <ol type="1"> 523 <li>Fix a bug that could cause extra empty pages to appear in a database 524 file after recovery. [#11118]</li> 525 <li>Fix a bug triggered when running recovery with a feedback function 526 that could cause a NULL pointer dereference. [#13834]</li> 527 <li>Fix a bug where running recovery could create duplicate entries in 528 the data directory list. [#13884]</li> 529 <li>Fix a bug to not trade locks if a write lock is already owned. 530 [#13917]</li> 531 <li>Fix a bug that could cause traps or hangs if the DB_TXN->set_name 532 function is used in a multithreaded application. [#14033]</li> 533 <li>Fix a bug so that a transaction can no longer be committed after it 534 had deadlocked. [#14037]</li> 535 <li>Fix a bug that could cause a trap during recovery if multiple 536 operations that could remove the same extent are recovered. [#14061]</li> 537 <li>Fix a bug that could cause an extent file to be deleted after the 538last record in the extent was consumed but the consuming transaction was 539aborted. [#14179]</li> 540 <li>Fix a bug where the parent database would not use 541 DB_READ_UNCOMMITTED in certain cases when calling DBC->c_pget. [#14361]</li> 542 <li>Fix a bug so that it is no longer possible to do a non-transactional 543 cursor update on a database that is opened transactionally. [#14519]</li> 544 <li>Fix a bug that causes a sequence to ignore the DB_AUTO_COMMIT 545 settings. [#14582]</li> 546 <li>Fix a bug, change txn_recover so that multiple processes will 547recover prepared transactions without requiring that the first process 548stay active. [#14707]</li> 549 <li>Fix a bug that could cause the wrong record to be deleted if a 550transaction had a cursor on a record with a pending delete and then 551replaced a record that contained overflow data or replaced a record with 552overflow data and that replace failed. [#14834]</li> 553 </ol> 554 </div> 555 </div> 556 <div class="sect2" lang="en" xml:lang="en"> 557 <div class="titlepage"> 558 <div> 559 <div> 560 <h3 class="title"><a id="id1652629"></a>Utility Changes:</h3> 561 </div> 562 </div> 563 </div> 564 <div class="orderedlist"> 565 <ol type="1"> 566 <li>Fix a bug that caused db_verify to not check the order on leaf pages 567 which were the leftmost children of an internal node. [#13004]</li> 568 <li>Fix a bug that caused db_hotbackup to not backup queue extent files. 569 [#13848]</li> 570 <li>Fix a bug so that db_verify no longer reports that an unused hash 571 page is not fully zeroed. [#14030]</li> 572 <li>Fix a bug where db_stat ignored the -f option to return "fast 573 statistics". [#14283]</li> 574 <li>Fix a bug that prevented the db_stat utility from opening database 575files with write permission so that meta data statistics would be 576updated. [#14755]</li> 577 <li>Fix a bug in db_hotbackup related to windows. Sub-directories are 578 now ignored. [#14757]</li> 579 </ol> 580 </div> 581 </div> 582 <div class="sect2" lang="en" xml:lang="en"> 583 <div class="titlepage"> 584 <div> 585 <div> 586 <h3 class="title"><a id="id1652610"></a>Configuration, Documentation, Portability and Build Changes:</h3> 587 </div> 588 </div> 589 </div> 590 <div class="orderedlist"> 591 <ol type="1"> 592 <li>The Berkeley DB 4.3 and 4.4 releases disallowed using the 593--with-uniquename configuration option with the C++, Java, or RPC 594--enable-XXX options. The 4.5 release returns to the 4.2 release 595behavior, allowing those combinations of configuration options. [#14067]</li> 596 <li>Fix build issues when CONFIG_TEST is not enabled for Tcl. [#14507]</li> 597 <li>There are updated build instructions for Berkeley DB PHP module on 598 Linux. [#14249]</li> 599 <li>Use libtool's "standard" environment variable names so that you can 600set "AR" to "ar -X64" for example, and modify both libtool and the 601Makefile commands. Remove the install-strip target from the Makefile, 602it is no longer used. [#14726]</li> 603 <li>Fix a bug where, when a database is opened with the DB_THREAD flag 604(the default in Java), and an operation in one thread causes the 605database to be truncated (typically when the last page in the database 606is freed) concurrently with a read or write in another thread, there can 607be arbitrary data loss, as Windows zeros out pages from the read/write 608location to the end of the file. [#15063]</li> 609 </ol> 610 </div> 611 </div> 612 </div> 613 <div class="navfooter"> 614 <hr /> 615 <table width="100%" summary="Navigation footer"> 616 <tr> 617 <td width="40%" align="left"><a accesskey="p" href="upgrade_4_5_disk.html">Prev</a>��</td> 618 <td width="20%" align="center"> 619 <a accesskey="u" href="upgrade_4_5_toc.html">Up</a> 620 </td> 621 <td width="40%" align="right">��<a accesskey="n" href="upgrade_4_6_toc.html">Next</a></td> 622 </tr> 623 <tr> 624 <td width="40%" align="left" valign="top">Release 4.5: Upgrade Requirements��</td> 625 <td width="20%" align="center"> 626 <a accesskey="h" href="index.html">Home</a> 627 </td> 628 <td width="40%" align="right" valign="top">��Chapter��43.��Upgrading Berkeley DB 4.5 applications to Berkeley DB 4.6</td> 629 </tr> 630 </table> 631 </div> 632 </body> 633</html> 634