History

Jan 9ffbc908f3 replication bugfixes and improvements ported from 3.2 (#4497 )		2018-02-09 13:39:31 +01:00
..
CMakeLists.txt	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesAllocatorThread.cpp	…
MMFilesAllocatorThread.h	…
MMFilesAqlFunctions.cpp	fixed issue #4185 : On execution of FULLTEXT search / AQL query db is … (#4239 )	2018-01-15 22:46:14 +01:00
MMFilesAqlFunctions.h	functionality for plugging REST handlers	2017-03-09 17:12:00 +01:00
MMFilesCleanupThread.cpp	Bug fix/fix compilation with gxx7 (#3637 )	2017-11-10 16:00:57 +01:00
MMFilesCleanupThread.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesCollection.cpp	properly unlock after restore-indexes (#4369 )	2018-01-25 15:56:13 +01:00
MMFilesCollection.h	fixed issue #4185 : On execution of FULLTEXT search / AQL query db is … (#4239 )	2018-01-15 22:46:14 +01:00
MMFilesCollectionExport.cpp	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesCollectionExport.h	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesCollectionKeys.cpp	fix premature unlock (#3802 ) (#4027 )	2017-12-13 18:46:14 +01:00
MMFilesCollectionKeys.h	fix premature unlock (#3802 ) (#4027 )	2017-12-13 18:46:14 +01:00
MMFilesCollectionReadLocker.h	honor exclusive locks	2017-04-25 12:56:56 +02:00
MMFilesCollectionWriteLocker.h	honor exclusive locks	2017-04-25 12:56:56 +02:00
MMFilesCollectorCache.h	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
MMFilesCollectorThread.cpp	improved logging for MMFiles IO operations (#4365 )	2018-01-19 18:36:49 +01:00
MMFilesCollectorThread.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesCompactionFeature.cpp	Bug fix/issues 2709 (#3333 )	2017-10-01 09:43:03 +02:00
MMFilesCompactionFeature.h	fix dropping of system collections and retrieving list of user databa… (#3304 )	2017-09-21 10:05:46 +02:00
MMFilesCompactionLocker.h	…
MMFilesCompactorThread.cpp	improved logging for MMFiles IO operations (#4365 )	2018-01-19 18:36:49 +01:00
MMFilesCompactorThread.h	Feature/compaction configuration (#3217 )	2017-09-15 14:37:30 +02:00
MMFilesDatafile.cpp	improved logging for MMFiles IO operations (#4365 )	2018-01-19 18:36:49 +01:00
MMFilesDatafile.h	potential fix for issue #3517 : several "filesystem full" errors in log… (#3525 )	2017-10-30 17:28:59 +01:00
MMFilesDatafileHelper.h	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
MMFilesDatafileStatistics.cpp	do not complain about missing datafile statistics (#3688 )	2017-11-14 16:42:31 +01:00
MMFilesDatafileStatistics.h	do not complain about missing datafile statistics (#3688 )	2017-11-14 16:42:31 +01:00
MMFilesDatafileStatisticsContainer.cpp	moved files	2017-03-16 16:45:02 +01:00
MMFilesDatafileStatisticsContainer.h	moved files	2017-03-16 16:45:02 +01:00
MMFilesDitch.cpp	…
MMFilesDitch.h	…
MMFilesDocumentOperation.cpp	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
MMFilesDocumentOperation.h	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesDocumentPosition.h	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
MMFilesEdgeIndex.cpp	Bug fix/fixes 1711 obi (#3730 )	2017-11-17 16:34:33 +01:00
MMFilesEdgeIndex.h	Feature/improved index api for unique constraints and replication (#3715 )	2017-11-16 21:02:01 +01:00
MMFilesEngine.cpp	improved logging for MMFiles IO operations (#4365 )	2018-01-19 18:36:49 +01:00
MMFilesEngine.h	improved logging for MMFiles IO operations (#4365 )	2018-01-19 18:36:49 +01:00
MMFilesExportCursor.cpp	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesExportCursor.h	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesFulltextIndex.cpp	Feature 3.3/fulltext optimizations (#3925 )	2017-12-19 21:40:12 +01:00
MMFilesFulltextIndex.h	Feature 3.3/fulltext optimizations (#3925 )	2017-12-19 21:40:12 +01:00
MMFilesGeoIndex.cpp	Feature/improved index api for unique constraints and replication (#3715 )	2017-11-16 21:02:01 +01:00
MMFilesGeoIndex.h	Feature/improved index api for unique constraints and replication (#3715 )	2017-11-16 21:02:01 +01:00
MMFilesHashIndex.cpp	Feature/improved index api for unique constraints and replication (#3715 )	2017-11-16 21:02:01 +01:00
MMFilesHashIndex.h	Feature/improved index api for unique constraints and replication (#3715 )	2017-11-16 21:02:01 +01:00
MMFilesIncrementalSync.h	replication bugfixes and improvements ported from 3.2 (#4497 )	2018-02-09 13:39:31 +01:00
MMFilesIndex.h	Bug fix/fixes 0211 (#3568 )	2017-11-09 12:48:15 +01:00
MMFilesIndexElement.cpp	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
MMFilesIndexElement.h	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesIndexFactory.cpp	Bug fix/fixes 0211 (#3568 )	2017-11-09 12:48:15 +01:00
MMFilesIndexFactory.h	Removed code paths that wrote objectIds into the Agency. This did break replication.	2017-05-02 14:59:19 +02:00
MMFilesLogfileManager.cpp	fix premature unlock (#3802 ) (#4027 )	2017-12-13 18:46:14 +01:00
MMFilesLogfileManager.h	make truncate a bit less obstrusive (#3721 )	2017-11-16 20:28:33 +01:00
MMFilesOptimizerRules.cpp	Bug fix/fixes 0609 (#3227 )	2017-09-13 16:28:21 +02:00
MMFilesOptimizerRules.h	Working geo index + tests	2017-05-09 15:04:51 +02:00
MMFilesPathBasedIndex.cpp	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
MMFilesPathBasedIndex.h	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesPersistentIndex.cpp	Feature/improved index api for unique constraints and replication (#3715 )	2017-11-16 21:02:01 +01:00
MMFilesPersistentIndex.h	Feature/improved index api for unique constraints and replication (#3715 )	2017-11-16 21:02:01 +01:00
MMFilesPersistentIndexFeature.cpp	Bug fix/fixes 0609 (#3227 )	2017-09-13 16:28:21 +02:00
MMFilesPersistentIndexFeature.h	change --rocksdb.enabled to be a obosolete option	2017-04-19 14:54:10 +02:00
MMFilesPersistentIndexKeyComparator.cpp	class renaming	2017-03-08 17:54:00 +01:00
MMFilesPersistentIndexKeyComparator.h	class renaming	2017-03-08 17:54:00 +01:00
MMFilesPrimaryIndex.cpp	speed up collection.any() for mmfiles (#4432 )	2018-02-08 11:36:27 +01:00
MMFilesPrimaryIndex.h	Feature/improved index api for unique constraints and replication (#3715 )	2017-11-16 21:02:01 +01:00
MMFilesRemoverThread.cpp	…
MMFilesRemoverThread.h	…
MMFilesRestExportHandler.cpp	Replacing /_api/collection with RestHandler (#3543 )	2017-11-02 14:57:17 +01:00
MMFilesRestExportHandler.h	move common code into its own file	2017-05-22 17:46:12 +02:00
MMFilesRestHandlers.cpp	Moved MMFiles replication handler.	2017-04-18 15:35:45 -04:00
MMFilesRestHandlers.h	make RestWalHandler a handler of the MMFiles engine	2017-03-10 09:00:37 +01:00
MMFilesRestReplicationHandler.cpp	replication bugfixes and improvements ported from 3.2 (#4497 )	2018-02-09 13:39:31 +01:00
MMFilesRestReplicationHandler.h	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesRestWalHandler.cpp	make truncate a bit less obstrusive (#3721 )	2017-11-16 20:28:33 +01:00
MMFilesRestWalHandler.h	make RestWalHandler a handler of the MMFiles engine	2017-03-10 09:00:37 +01:00
MMFilesRevisionsCache.cpp	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
MMFilesRevisionsCache.h	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
MMFilesSkiplist.h	Bug fix/fixes 0609 (#3227 )	2017-09-13 16:28:21 +02:00
MMFilesSkiplistIndex.cpp	properly unlock after restore-indexes (#4369 )	2018-01-25 15:56:13 +01:00
MMFilesSkiplistIndex.h	Feature/improved index api for unique constraints and replication (#3715 )	2017-11-16 21:02:01 +01:00
MMFilesSynchronizerThread.cpp	improved logging for MMFiles IO operations (#4365 )	2018-01-19 18:36:49 +01:00
MMFilesSynchronizerThread.h	…
MMFilesTransactionCollection.cpp	fix nullptr access (#4143 )	2017-12-22 10:56:01 +01:00
MMFilesTransactionCollection.h	fix premature unlock (#3802 ) (#4027 )	2017-12-13 18:46:14 +01:00
MMFilesTransactionContextData.cpp	…
MMFilesTransactionContextData.h	…
MMFilesTransactionManager.cpp	optimize away own transaction management for RocksDB engine	2017-05-04 23:16:53 +02:00
MMFilesTransactionManager.h	optimize away own transaction management for RocksDB engine	2017-05-04 23:16:53 +02:00
MMFilesTransactionState.cpp	Missing things for active / passive (#3578 )	2017-11-04 20:30:23 +01:00
MMFilesTransactionState.h	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesV8Functions.cpp	Feature/improved index api for unique constraints and replication (#3715 )	2017-11-16 21:02:01 +01:00
MMFilesV8Functions.h	fix db._engineStats()	2017-05-04 00:33:36 +02:00
MMFilesView.cpp	some fixes for view handling	2017-03-17 11:18:46 +01:00
MMFilesView.h	added stubs for indexes	2017-03-23 15:24:00 +01:00
MMFilesWalAccess.cpp	Replacing /_api/collection with RestHandler (#3543 )	2017-11-02 14:57:17 +01:00
MMFilesWalAccess.h	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
MMFilesWalLogfile.cpp	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
MMFilesWalLogfile.h	renaming	2017-03-22 13:01:40 +01:00
MMFilesWalMarker.h	added stubs for indexes	2017-03-23 15:24:00 +01:00
MMFilesWalRecoverState.cpp	fix issue #4272 (#4418 )	2018-01-25 15:57:06 +01:00
MMFilesWalRecoverState.h	renaming	2017-03-22 13:01:40 +01:00
MMFilesWalRecoveryFeature.cpp	add a test for replication applier restarts (#3750 ) (#3933 )	2017-12-08 15:48:15 +01:00
MMFilesWalRecoveryFeature.h	…
MMFilesWalSlot.cpp	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
MMFilesWalSlot.h	fix WAL file tick updating (happened too late before) (#2762 )	2017-07-10 17:41:08 +02:00
MMFilesWalSlots.cpp	Bug fix/fix compilation with gxx7 (#3637 )	2017-11-10 16:00:57 +01:00
MMFilesWalSlots.h	fix WAL file tick updating (happened too late before) (#2762 )	2017-07-10 17:41:08 +02:00
MMFilesWalSyncRegion.h	…
README.md	…
mmfiles-fulltext-common.h	move replication-dump into engine	2017-03-21 13:55:57 +01:00
mmfiles-fulltext-index.cpp	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
mmfiles-fulltext-index.h	Bug fix/isrestore (#3283 )	2017-10-03 11:53:49 +02:00
mmfiles-fulltext-list.cpp	Bug fix/fixes 0609 (#3227 )	2017-09-13 16:28:21 +02:00
mmfiles-fulltext-list.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
mmfiles-fulltext-query.cpp	Bug fix/fixes 0609 (#3227 )	2017-09-13 16:28:21 +02:00
mmfiles-fulltext-query.h	move replication-dump into engine	2017-03-21 13:55:57 +01:00
mmfiles-geo-index.cpp	Bug fix/fixes 0609 (#3227 )	2017-09-13 16:28:21 +02:00
mmfiles-geo-index.h	move replication-dump into engine	2017-03-21 13:55:57 +01:00
mmfiles-replication-common.cpp	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
mmfiles-replication-common.h	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00
mmfiles-replication-dump.cpp	some cleanup (#3583 )	2017-11-07 10:27:21 +01:00
mmfiles-replication-dump.h	Feature/async failover (#3451 )	2017-10-18 23:59:29 +02:00

README.md

MMFilesEngine

How operations are stored - Overview

All operations like insert or remove are written as markers to a write ahead log (WAL). This WAL consists of files of a certain size and if such a file is full (or is manually flushed), all relevant markers are transferred (transferMarkers()) to the journals of the respective collections. During the transfer any obsolete markers will be thrown away: a sequence of insert, remove, insert on the same document will result in the last insert discarding the previous operations. When a journal file of size (journalSize()) is full, it will be sealed and renamed. By applying these operations it will become a datafile that is read-only. Datafiles will eventually be merged by a compactor thread that does about the same work as the transferMarkers function, reducing the size of the stored data.

Ditches

Ditches are used to pin objects in WAL or journal as long as they are used by other operations.