mirror of https://gitee.com/bigwinds/arangodb
3cb1cc7a52
* 'devel' of https://github.com/arangodb/arangodb: Fixing index markers exclusive locks for indexes better incremental sync grunt build Avoid log spam. Removed code paths that wrote objectIds into the Agency. This did break replication. WAL: honor tick end value WAL fiter after collection Reactivated client-side filtering of unnecessary markers Added an Assert when persisting an index it's objectId is not allowed to be 0 The RestReplicationHandler now inserts new ObjectIds when replicating collections moved files add dependencies for TransactionManager fix include move engine-specific test into engine test |
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| .. | ||
| CMakeLists.txt | ||
| MMFilesAllocatorThread.cpp | ||
| MMFilesAllocatorThread.h | ||
| MMFilesAqlFunctions.cpp | ||
| MMFilesAqlFunctions.h | ||
| MMFilesCleanupThread.cpp | ||
| MMFilesCleanupThread.h | ||
| MMFilesCollection.cpp | ||
| MMFilesCollection.h | ||
| MMFilesCollectionExport.cpp | ||
| MMFilesCollectionExport.h | ||
| MMFilesCollectionKeys.cpp | ||
| MMFilesCollectionKeys.h | ||
| MMFilesCollectionReadLocker.h | ||
| MMFilesCollectionWriteLocker.h | ||
| MMFilesCollectorCache.h | ||
| MMFilesCollectorThread.cpp | ||
| MMFilesCollectorThread.h | ||
| MMFilesCompactionLocker.h | ||
| MMFilesCompactorThread.cpp | ||
| MMFilesCompactorThread.h | ||
| MMFilesDatafile.cpp | ||
| MMFilesDatafile.h | ||
| MMFilesDatafileHelper.h | ||
| MMFilesDatafileStatistics.cpp | ||
| MMFilesDatafileStatistics.h | ||
| MMFilesDatafileStatisticsContainer.cpp | ||
| MMFilesDatafileStatisticsContainer.h | ||
| MMFilesDitch.cpp | ||
| MMFilesDitch.h | ||
| MMFilesDocumentOperation.cpp | ||
| MMFilesDocumentOperation.h | ||
| MMFilesDocumentPosition.h | ||
| MMFilesEdgeIndex.cpp | ||
| MMFilesEdgeIndex.h | ||
| MMFilesEngine.cpp | ||
| MMFilesEngine.h | ||
| MMFilesExportCursor.cpp | ||
| MMFilesExportCursor.h | ||
| MMFilesFulltextIndex.cpp | ||
| MMFilesFulltextIndex.h | ||
| MMFilesGeoIndex.cpp | ||
| MMFilesGeoIndex.h | ||
| MMFilesHashIndex.cpp | ||
| MMFilesHashIndex.h | ||
| MMFilesIndexElement.cpp | ||
| MMFilesIndexElement.h | ||
| MMFilesIndexFactory.cpp | ||
| MMFilesIndexFactory.h | ||
| MMFilesInitialSync.h | ||
| MMFilesLogfileManager.cpp | ||
| MMFilesLogfileManager.h | ||
| MMFilesOptimizerRules.cpp | ||
| MMFilesOptimizerRules.h | ||
| MMFilesPathBasedIndex.cpp | ||
| MMFilesPathBasedIndex.h | ||
| MMFilesPersistentIndex.cpp | ||
| MMFilesPersistentIndex.h | ||
| MMFilesPersistentIndexFeature.cpp | ||
| MMFilesPersistentIndexFeature.h | ||
| MMFilesPersistentIndexKeyComparator.cpp | ||
| MMFilesPersistentIndexKeyComparator.h | ||
| MMFilesPrimaryIndex.cpp | ||
| MMFilesPrimaryIndex.h | ||
| MMFilesRemoverThread.cpp | ||
| MMFilesRemoverThread.h | ||
| MMFilesRestExportHandler.cpp | ||
| MMFilesRestExportHandler.h | ||
| MMFilesRestHandlers.cpp | ||
| MMFilesRestHandlers.h | ||
| MMFilesRestReplicationHandler.cpp | ||
| MMFilesRestReplicationHandler.h | ||
| MMFilesRestWalHandler.cpp | ||
| MMFilesRestWalHandler.h | ||
| MMFilesRevisionsCache.cpp | ||
| MMFilesRevisionsCache.h | ||
| MMFilesSkiplist.h | ||
| MMFilesSkiplistIndex.cpp | ||
| MMFilesSkiplistIndex.h | ||
| MMFilesSynchronizerThread.cpp | ||
| MMFilesSynchronizerThread.h | ||
| MMFilesToken.h | ||
| MMFilesTransactionCollection.cpp | ||
| MMFilesTransactionCollection.h | ||
| MMFilesTransactionContextData.cpp | ||
| MMFilesTransactionContextData.h | ||
| MMFilesTransactionState.cpp | ||
| MMFilesTransactionState.h | ||
| MMFilesV8Functions.cpp | ||
| MMFilesV8Functions.h | ||
| MMFilesView.cpp | ||
| MMFilesView.h | ||
| MMFilesWalLogfile.cpp | ||
| MMFilesWalLogfile.h | ||
| MMFilesWalMarker.h | ||
| MMFilesWalRecoverState.cpp | ||
| MMFilesWalRecoverState.h | ||
| MMFilesWalRecoveryFeature.cpp | ||
| MMFilesWalRecoveryFeature.h | ||
| MMFilesWalSlot.cpp | ||
| MMFilesWalSlot.h | ||
| MMFilesWalSlots.cpp | ||
| MMFilesWalSlots.h | ||
| MMFilesWalSyncRegion.h | ||
| README.md | ||
| mmfiles-fulltext-common.h | ||
| mmfiles-fulltext-handles.cpp | ||
| mmfiles-fulltext-handles.h | ||
| mmfiles-fulltext-index.cpp | ||
| mmfiles-fulltext-index.h | ||
| mmfiles-fulltext-list.cpp | ||
| mmfiles-fulltext-list.h | ||
| mmfiles-fulltext-query.cpp | ||
| mmfiles-fulltext-query.h | ||
| mmfiles-fulltext-result.cpp | ||
| mmfiles-fulltext-result.h | ||
| mmfiles-geo-index.cpp | ||
| mmfiles-geo-index.h | ||
| mmfiles-replication-dump.cpp | ||
| mmfiles-replication-dump.h | ||
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.