History

Simon Grätzer 88d01b89b5 Optimizations for Caches and Graph Traversals (#3169 )		2017-08-31 18:33:10 +02:00
..
CMakeLists.txt	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesAllocatorThread.cpp	…
MMFilesAllocatorThread.h	…
MMFilesAqlFunctions.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesAqlFunctions.h	…
MMFilesCleanupThread.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesCleanupThread.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesCollection.cpp	Optimizations for Caches and Graph Traversals (#3169 )	2017-08-31 18:33:10 +02:00
MMFilesCollection.h	Optimizations for Caches and Graph Traversals (#3169 )	2017-08-31 18:33:10 +02:00
MMFilesCollectionExport.cpp	move common code into its own file	2017-05-22 17:46:12 +02:00
MMFilesCollectionExport.h	move common code into its own file	2017-05-22 17:46:12 +02:00
MMFilesCollectionKeys.cpp	removing unused and unimplemented methods	2017-05-10 18:25:41 +02:00
MMFilesCollectionKeys.h	…
MMFilesCollectionReadLocker.h	…
MMFilesCollectionWriteLocker.h	…
MMFilesCollectorCache.h	…
MMFilesCollectorThread.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesCollectorThread.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesCompactionLocker.h	…
MMFilesCompactorThread.cpp	removing unused and unimplemented methods	2017-05-10 18:25:41 +02:00
MMFilesCompactorThread.h	…
MMFilesDatafile.cpp	do not include our datafiles in core files (#2630 )	2017-06-22 12:34:27 +02:00
MMFilesDatafile.h	fix WAL file tick updating (happened too late before) (#2762 )	2017-07-10 17:41:08 +02:00
MMFilesDatafileHelper.h	…
MMFilesDatafileStatistics.cpp	…
MMFilesDatafileStatistics.h	…
MMFilesDatafileStatisticsContainer.cpp	…
MMFilesDatafileStatisticsContainer.h	…
MMFilesDitch.cpp	…
MMFilesDitch.h	…
MMFilesDocumentOperation.cpp	…
MMFilesDocumentOperation.h	…
MMFilesDocumentPosition.h	…
MMFilesEdgeIndex.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesEdgeIndex.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesEngine.cpp	Bug fix/planning issue 514 replication api (#3021 )	2017-08-22 10:46:06 +02:00
MMFilesEngine.h	Feature/reduce extraction to projection (#2792 )	2017-07-14 08:40:29 +02:00
MMFilesExportCursor.cpp	move common code into its own file	2017-05-22 17:46:12 +02:00
MMFilesExportCursor.h	…
MMFilesFulltextIndex.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesFulltextIndex.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesGeoIndex.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesGeoIndex.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesHashIndex.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesHashIndex.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesIncrementalSync.h	Bug fix/adjust agency comm timeouts (#2765 )	2017-07-13 00:44:28 +02:00
MMFilesIndexElement.cpp	…
MMFilesIndexElement.h	…
MMFilesIndexFactory.cpp	Feature/reduce extraction to projection (#2792 )	2017-07-14 08:40:29 +02:00
MMFilesIndexFactory.h	…
MMFilesLogfileManager.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesLogfileManager.h	fix a race on shutdown (#2897 )	2017-07-29 10:30:24 +02:00
MMFilesOptimizerRules.cpp	Working geo index + tests	2017-05-09 15:04:51 +02:00
MMFilesOptimizerRules.h	Working geo index + tests	2017-05-09 15:04:51 +02:00
MMFilesPathBasedIndex.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesPathBasedIndex.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesPersistentIndex.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesPersistentIndex.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesPersistentIndexFeature.cpp	Fix cases where the root user has access to excluded collections (#2856 )	2017-08-03 21:16:08 +02:00
MMFilesPersistentIndexFeature.h	…
MMFilesPersistentIndexKeyComparator.cpp	…
MMFilesPersistentIndexKeyComparator.h	…
MMFilesPrimaryIndex.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesPrimaryIndex.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesRemoverThread.cpp	…
MMFilesRemoverThread.h	…
MMFilesRestExportHandler.cpp	move common code into its own file	2017-05-22 17:46:12 +02:00
MMFilesRestExportHandler.h	move common code into its own file	2017-05-22 17:46:12 +02:00
MMFilesRestHandlers.cpp	…
MMFilesRestHandlers.h	…
MMFilesRestReplicationHandler.cpp	Bug fix/use count for checksum (#3033 )	2017-08-15 11:24:54 +02:00
MMFilesRestReplicationHandler.h	Bug fix/use count for checksum (#3033 )	2017-08-15 11:24:54 +02:00
MMFilesRestWalHandler.cpp	issue #2505	2017-05-29 10:29:47 +02:00
MMFilesRestWalHandler.h	…
MMFilesRevisionsCache.cpp	…
MMFilesRevisionsCache.h	…
MMFilesSkiplist.h	remove memset parameter from TRI_Allocate signature (#2993 )	2017-08-08 16:07:32 +02:00
MMFilesSkiplistIndex.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesSkiplistIndex.h	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +02:00
MMFilesSynchronizerThread.cpp	…
MMFilesSynchronizerThread.h	…
MMFilesToken.h	…
MMFilesTransactionCollection.cpp	a few simplifications and extensions (#3115 )	2017-08-24 14:46:16 +02:00
MMFilesTransactionCollection.h	a few simplifications and extensions (#3115 )	2017-08-24 14:46:16 +02:00
MMFilesTransactionContextData.cpp	…
MMFilesTransactionContextData.h	…
MMFilesTransactionManager.cpp	…
MMFilesTransactionManager.h	…
MMFilesTransactionState.cpp	only sync RocksDB WAL in MMFiles engine when there is a reason to do so (#2863 )	2017-07-26 21:49:41 +02:00
MMFilesTransactionState.h	added tests for intermediate commits	2017-05-30 12:03:58 +02:00
MMFilesV8Functions.cpp	…
MMFilesV8Functions.h	…
MMFilesView.cpp	…
MMFilesView.h	…
MMFilesWalLogfile.cpp	…
MMFilesWalLogfile.h	…
MMFilesWalMarker.h	…
MMFilesWalRecoverState.cpp	Added recovery tests for views and fixed a few related bugs. (#2682 )	2017-06-29 17:09:43 +02:00
MMFilesWalRecoverState.h	…
MMFilesWalRecoveryFeature.cpp	remove dependency on MMFiles features from non-MMFiles files (#2925 )	2017-08-01 22:16:43 +02:00
MMFilesWalRecoveryFeature.h	…
MMFilesWalSlot.cpp	fix WAL file tick updating (happened too late before) (#2762 )	2017-07-10 17:41:08 +02:00
MMFilesWalSlot.h	fix WAL file tick updating (happened too late before) (#2762 )	2017-07-10 17:41:08 +02:00
MMFilesWalSlots.cpp	fix WAL file tick updating (happened too late before) (#2762 )	2017-07-10 17:41:08 +02:00
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	…
mmfiles-fulltext-index.cpp	Bug fix/scheduler delete (#3077 )	2017-08-25 12:00:17 +02:00
mmfiles-fulltext-index.h	Bug fix/issues 2308 (#3117 )	2017-08-24 14:47:22 +02:00
mmfiles-fulltext-list.cpp	fix fulltext index removal performance, simplified code (#3015 )	2017-08-12 09:25:30 +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	remove memset parameter from TRI_Allocate signature (#2993 )	2017-08-08 16:07:32 +02:00
mmfiles-fulltext-query.h	…
mmfiles-geo-index.cpp	remove memset parameter from TRI_Allocate signature (#2993 )	2017-08-08 16:07:32 +02:00
mmfiles-geo-index.h	…
mmfiles-replication-dump.cpp	Squashed commit of the following:	2017-05-12 23:22:22 +02:00
mmfiles-replication-dump.h	Bug fix/cleanup stuff (#2734 )	2017-07-05 19:34:16 +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.