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Overview
| Comment: | Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
3e922208b68563489c7766abb9afb488 |
| User & Date: | drh 2014-10-21 21:56:06 |
References
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2014-10-29
| ||
| 01:07 | Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. This is a cherrypick of [3e922208b68563489]. (check-in: a8f9bd1e user: drh tags: branch-3.8.7) | |
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2014-10-22
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| 02:43 | Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. This is a cherry-pick of [3e922208b68563] (check-in: 67484807 user: drh tags: branch-3.8.6) | |
Context
|
2014-10-29
| ||
| 01:07 | Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. This is a cherrypick of [3e922208b68563489]. (check-in: a8f9bd1e user: drh tags: branch-3.8.7) | |
|
2014-10-22
| ||
| 15:27 | Take steps to avoid misestimating range query costs based on STAT4 data due to the roundoff error of converting from integers to LogEst and back to integers. (check-in: 3c933bf9 user: drh tags: trunk) | |
| 02:43 | Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. This is a cherry-pick of [3e922208b68563] (check-in: 67484807 user: drh tags: branch-3.8.6) | |
|
2014-10-21
| ||
| 21:56 | Call fsync() right after ftruncate() when in journal_mode=TRUNCATE and when synchronous=FULL in order to ensure that transactions are durable across a power loss that happens moments after the commit. Proposed fix for https://bugzilla.mozilla.org/show_bug.cgi?id=1072773. (check-in: 3e922208 user: drh tags: trunk) | |
| 18:16 | Further tuning of the cost estimates for skip-scan loops, especially for cases when skip-scan loops are in competition with regular loops. (check-in: a27861c2 user: drh tags: trunk) | |
Changes
Changes to src/pager.c.
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assert( pPager->journalMode==PAGER_JOURNALMODE_MEMORY );
sqlite3OsClose(pPager->jfd);
}else if( pPager->journalMode==PAGER_JOURNALMODE_TRUNCATE ){
if( pPager->journalOff==0 ){
rc = SQLITE_OK;
}else{
rc = sqlite3OsTruncate(pPager->jfd, 0);
}
pPager->journalOff = 0;
}else if( pPager->journalMode==PAGER_JOURNALMODE_PERSIST
|| (pPager->exclusiveMode && pPager->journalMode!=PAGER_JOURNALMODE_WAL)
){
rc = zeroJournalHdr(pPager, hasMaster);
pPager->journalOff = 0;
|
> > > > > > > > |
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assert( pPager->journalMode==PAGER_JOURNALMODE_MEMORY );
sqlite3OsClose(pPager->jfd);
}else if( pPager->journalMode==PAGER_JOURNALMODE_TRUNCATE ){
if( pPager->journalOff==0 ){
rc = SQLITE_OK;
}else{
rc = sqlite3OsTruncate(pPager->jfd, 0);
if( rc==SQLITE_OK && pPager->fullSync ){
/* Make sure the new file size is written into the inode right away.
** Otherwise the journal might resurrect following a power loss and
** cause the last transaction to roll back. See
** https://bugzilla.mozilla.org/show_bug.cgi?id=1072773
*/
rc = sqlite3OsSync(pPager->jfd, pPager->syncFlags);
}
}
pPager->journalOff = 0;
}else if( pPager->journalMode==PAGER_JOURNALMODE_PERSIST
|| (pPager->exclusiveMode && pPager->journalMode!=PAGER_JOURNALMODE_WAL)
){
rc = zeroJournalHdr(pPager, hasMaster);
pPager->journalOff = 0;
|