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51 Commits

Author SHA1 Message Date
dan
10f5a50e57 Add a version number to the wal-index header. If SQLite encounters a version number in either the wal or wal-index files that it does not understand, the operation is abandoned and SQLITE_CANTOPEN returned. 
FossilOrigin-Name: 8d0f8a7f70d6fb42369411a934b30f8c8ca8322f
 2010-06-23 15:55:43 +00:00
dan
47ee386f06 Add codec support to wal mode. 
FossilOrigin-Name: 393741eba353d5d242b8e3c96db3ea2b92228036
 2010-06-22 15:18:44 +00:00
dan
68928b6c3e Some changes to test scripts related to codec enabled versions of sqlite. 
FossilOrigin-Name: 85dd51a75c75b2a123744f646e04538e4e5d89b3
 2010-06-22 13:46:43 +00:00
dan
a4a9095ec0 Rationalize a common pattern in tcl test cases into proc do_multiclient_test. 
FossilOrigin-Name: efe44564983f115017658dd8a130226366d42bab
 2010-06-15 19:07:42 +00:00
dan
c1a60c51dc Refactor some of the global variables and commands used by tester.tcl. 
FossilOrigin-Name: c2edf8e17f874d0ca4e94b75575bf6e14eea1f05
 2010-06-07 14:28:16 +00:00
dan
6e6bd5658f Fix a problem with rolling back to a savepoint opened before the writer decided to wrap the log file. 
FossilOrigin-Name: 6b4aed6aae7dc9e92807d27375cbe1e83c15841b
 2010-06-02 18:59:03 +00:00
dan
dcb1169fb7 Update another test case in wal.test. 
FossilOrigin-Name: 99fde69e61d12cf95b47db70c4647c30be2d2f45
 2010-05-31 14:18:45 +00:00
drh
a2ac9df170 Change WAL test cases to account for the improved concurrency in the new 
checkpoint logic.

FossilOrigin-Name: 2d6f2485053e6d2a67abda9a80693ca68f4556d2
 2010-05-31 13:11:49 +00:00
drh
34116eaf6a Do not fail a checkpoint just because active readers prevent backfill. 
FossilOrigin-Name: 9aa4243e0cedcc9204994d04af1b2b7a80c048bd
 2010-05-31 12:30:52 +00:00
dan
71d8991932 Change the checksum used in WAL files so that each frames checksum depends on the content of the WAL header and all frame headers and content up to and including the frame to which the checksum is attached. 
FossilOrigin-Name: 8a53f12c83a107684b99f4a9de371b5ea3ca810a
 2010-05-24 13:57:42 +00:00
dan
b8fd6c2fe6 Change the WAL file format to support two kinds of checksums - one that is fast to calculate on little-endian architectures and another that is fast on big-endian architectures. A flag in the wal-header indicates which the file uses. 
FossilOrigin-Name: 65ba804dd1d31d1eef6ae3f40a3ade344a410b84
 2010-05-24 10:39:36 +00:00
drh
7e263728f2 Make use of the extra information in the WAL header and frame header to 
enhance robustness.

FossilOrigin-Name: 9580ecb7e3beb1949a71784a3dcd1823a88e4a9d
 2010-05-20 21:21:09 +00:00
drh
23ea97b641 Convert the wal-header and frame-header to 24 bytes. Extra information in 
both headers is designed to enhance robustness after crashes, though the
extra information is currently unused.  This is a snapshot of a work in
progress.

FossilOrigin-Name: 669706431f186f92fdc0856a6206419a1e843f46
 2010-05-20 16:45:58 +00:00
drh
4c1cb6ab05 Fix a bug in the new checkpoint computation. Also update the checkpoint 
algorithm in the test scripts to align with the new implementation.

FossilOrigin-Name: 8b6056f2ee596f31b157a792fac05d11f7cb63bb
 2010-05-19 19:09:37 +00:00
shaneh
a10069dd22 Updates for to WAL TCL test scripts to support running on Windows. 
FossilOrigin-Name: 6a5630806c87b0f4e5632c37c357f98effd9608a
 2010-05-11 02:46:16 +00:00
dan
c6315a44b2 Fix a recently introduced problem in wal.test. 
FossilOrigin-Name: 79b52d0ff7a7b717bde55b97ff05ad17418bc7d7
 2010-05-07 13:52:42 +00:00
dan
65bddc1223 Change wal.test and walhook.test so that they work with DEFAULT_AUTOVACUUM=1 builds. 
FossilOrigin-Name: 4cde92909c20982f7d4e6b550f55d786df398ccd
 2010-05-07 12:49:22 +00:00
dan
998ad21271 Fix a problem with checkpointing large log files created by an external process. 
FossilOrigin-Name: 8f94bde568be52ecc5a976b7a09776ea7b4bb511
 2010-05-07 06:59:08 +00:00
dan
b7d53f54ae Fix a bug whereby an old snapshot could be checkpointed (and subsequent transactions discarded) if the last connection to disconnect from a WAL database happended to be holding an out-of-date wal-index header. 
FossilOrigin-Name: d0c0034b0baa83046c1d6b94c886f7039e4e06f5
 2010-05-06 17:28:08 +00:00
dan
c9e4665e7d Unset a tcl variable before reusing it in wal.test. 
FossilOrigin-Name: e83efb232fe8d30714f4c7cffeef80092aea4df7
 2010-05-06 13:36:47 +00:00
dan
2cee6abf8e Add a test case to verify that log files containing pages that are not a power-of-two bytes in size are handled correctly. 
FossilOrigin-Name: c2bf693f933313991d85394009e79a7903037a18
 2010-05-04 15:20:45 +00:00
dan
b6e099a973 Fix problems with recovering wal files that use a page-size other than the default. 
FossilOrigin-Name: 1a391f3c55dc9d4266552fa26d2a9839c6bafce4
 2010-05-04 14:47:39 +00:00
dan
8d6ad1cc2c Test that the correct number of padding frames are appended to the log file after committing a transaction in synchronous=FULL mode. 
FossilOrigin-Name: a60104aa7e38e7d9f2ff2eae02687dc9c5dd5d77
 2010-05-04 10:36:20 +00:00
dan
af0cfd366a Have sqlite3_wal_checkpoint() handle a zero-length string in the same way as a NULL pointer. Fix "PRAGMA wal_checkpoint" so that it checkpoints all attached databases. 
FossilOrigin-Name: 7fecd21f45b9ce773ffbcef6c84066474e8cd01c
 2010-05-03 15:58:50 +00:00
dan
87c1fe1b69 Have sqlite3_wal_checkpoint() populate the database handle error message and error code (as returned by sqlite3_errmsg() and sqlite3_errcode()). 
FossilOrigin-Name: ff234cf574c7ae384ab1ebc79b2171ef0541bc91
 2010-05-03 12:14:15 +00:00
dan
5a299f9134 Add the "PRAGMA wal_autocheckpoint" command. Rename "PRAGMA checkpoint" to "PRAGMA wal_checkpoint". 
FossilOrigin-Name: 714e5947264571386f966aa8fcdd5607b5832238
 2010-05-03 11:05:08 +00:00
dan
5cf53537a8 Support compile-time option SQLITE_OMIT_WAL, for building without WAL support. 
FossilOrigin-Name: 9b230c43dfa112e3e1589f9775926807bd36b36e
 2010-05-01 16:40:20 +00:00
drh
1b48aa49a4 Remove some obsolete debugging parameters. 
FossilOrigin-Name: a012aed498bf41a5f6f3006182b0c4c2ab0fe1bb
 2010-04-30 17:28:35 +00:00
dan
185cca609b Close all open database connections at the end of wal.test. 
FossilOrigin-Name: 3cc55a7568daa3796483f632e33478969e381cf5
 2010-04-29 14:58:53 +00:00
dan
31c03907fd Fix a but in the WAL checkpoint code causing SQLite to use an inconsistent cache in a subsequent transaction. 
FossilOrigin-Name: d1cadeed4eea20d8892726cc8c69f4f3f57d0cd4
 2010-04-29 14:51:33 +00:00
dan
8b348af860 Add a test to check that a checkpointer releases its locks before returning, even if it has been prevented by a conflicting lock from checkpointing the database. 
Add a test to check that a checkpointer releases its locks before returning, even if it has been prevented by a conflicting lock from checkpointing the database.

FossilOrigin-Name: be44349d2b790fb470fcc9fb6a12e8b1076dc645
 2010-04-27 18:43:16 +00:00
dan
31f98fc8e4 Fix a problem that occurs when one process causes the log-summary file to grow and then a second process attempts to read the database. 
FossilOrigin-Name: b51a5f8bc660616aa264025dd7ad4bdab458814b
 2010-04-27 05:42:32 +00:00
dan
4cd78b4d89 Fixes for problems with small caches and SAVEPOINT rollback in WAL mode. 
FossilOrigin-Name: 6a944f028d4a070bef29e1fbc6fbef481ebcd34c
 2010-04-26 16:57:10 +00:00
dan
cd11fb28c3 Add mutexes to fix a race condition in wal.c. This isn't a very good fix. 
FossilOrigin-Name: 3d159939cc2beb18c4ca0c8e9a99a75d4107e6e4
 2010-04-26 10:40:52 +00:00
dan
74d6cd887f Fix bugs in WAL mode rollback. 
FossilOrigin-Name: 31215969f59be536fe87431bb9fbfa7d13027e35
 2010-04-24 18:44:05 +00:00
dan
ce4f05f374 Create a version of the log checksummer that works on big-endian platforms. Remove the 512KB size limit on the log-summary. 
FossilOrigin-Name: 5d6d4423d1def39bd2424703120aa985085c3f8e
 2010-04-22 19:14:13 +00:00
dan
b978002743 Tests for (and changes to) the code to switch between WAL and rollback modes. 
FossilOrigin-Name: 9f4f933f2c6596064fcfc7fb5add87e8c5b57448
 2010-04-21 18:37:57 +00:00
dan
a470aeb4ac If, after obtaining a SHARED lock, there exists a *-wal file in the file-system, use WAL mode. This is necessary to recover from a crash that damages the first page of the database file. 
FossilOrigin-Name: 33cabf271b8f4dda508a610bf59964273fe2cb84
 2010-04-21 11:43:38 +00:00
dan
e04dc88be5 Use the read and write version fields of the database header to mark a database as operating in wal-mode. 
FossilOrigin-Name: 96bef18c1411c3e0348295886f105e1646c46320
 2010-04-20 18:53:15 +00:00
dan
6703239d2f In synchronous=normal mode, do not sync the log after every transaction. In synchronous=full mode, sync the log and add any extra frames required to avoid blast-radius related problems after each transaction. 
FossilOrigin-Name: 9bc9b6847303d0324543a9ded8dd0473490122d8
 2010-04-17 15:42:43 +00:00
dan
3de777fd8c Enhancements to wal-mode locking scheme. 
FossilOrigin-Name: 8549c286497f3d2cd118be1334fce00d6f8a26c4
 2010-04-17 12:31:37 +00:00
dan
97a313554d Change the log file format to include a small (12 byte) header at the start of the file. 
FossilOrigin-Name: 9865d14d6041874bc1239ce7a061d5c75f2d33c9
 2010-04-16 13:59:31 +00:00
dan
4a4b01dc1c Fix bug in log recovery (last frame in log was being ignored). Also remove an incorrect assert statement. 
FossilOrigin-Name: 67d2a89ec2d593a077eb19a6ea2b06cb1c2e9ba8
 2010-04-16 11:30:18 +00:00
dan
4cc6fb6165 Allow writers to write dirty pages to the log mid-transaction in order to free memory. 
FossilOrigin-Name: ecd828f96909895535d7dc744e5a8530e234e04d
 2010-04-15 16:45:34 +00:00
dan
49320f8568 Add tests and fix bugs in WAL locking mechanism. 
FossilOrigin-Name: c18077f2465fc34830f11c9832e76be5746eaeea
 2010-04-14 18:50:08 +00:00
dan
e264d983d1 Add tests to check inter-process WAL locking. 
FossilOrigin-Name: 9435f3135849e0d38fde1669201db508561a6308
 2010-04-14 18:06:50 +00:00
dan
b9bf16bfde Fixes for locking issues in WAL mode. 
FossilOrigin-Name: a9617eff39177250e2f118f25fdd4b3acb8b0478
 2010-04-14 11:23:30 +00:00
dan
f05c86dd73 Remove old code to interpret an argument (no longer used) to "PRAGMA checkpoint". 
FossilOrigin-Name: 27dc5977c19e717afd65d3805557e38dec7bedcb
 2010-04-13 11:56:03 +00:00
dan
80a1526a9a Fix other problems in the WAL test scripts. 
FossilOrigin-Name: dcb31181db246dd3f81ce63b144dd0cf95f06ee3
 2010-04-13 11:45:31 +00:00
dan
d3f8f94652 Fix test script issues preventing walthread.test from running. 
FossilOrigin-Name: d90b1dde0702ceb0eae2a3da36733a7e5b1a6b3a
 2010-04-13 11:35:01 +00:00