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arangodb/arangod/MMFiles
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Kaveh Vahedipour 211812c6f5 Metrics tests (#10578) 
* adding tests

* consolidate

* tests working again

* KAVEH!

* more tests

* jsteemann rev pt 1

* minor rewrite

* remove static pointer in metrics feature

* feature api && tests

* fixed tests

* reflective dep

* invalidated iterators on obi watch

* fix test

* back in

* fix counter fetch

* obi1

* added _admin/metrics documentation

* try_emplace and docu touch up
 		2019-12-02 16:55:29 +01:00
..
CMakeLists.txt Refactorings from cluster trx improvement branch (#8391) 2019-03-14 23:13:17 +01:00
MMFilesAllocatorThread.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesAllocatorThread.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesCleanupThread.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesCleanupThread.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesCollection.cpp Feature/internal issue #509 (#10407) 2019-11-14 18:56:18 +03:00
MMFilesCollection.h Improve Connection pool robustness (#10268) 2019-10-30 17:30:50 +01:00
MMFilesCollectionExport.cpp Remove invokeOnAllElements (#10212) 2019-10-10 14:03:13 +02:00
MMFilesCollectionExport.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesCollectionKeys.cpp upgrade vpack library (#10314) 2019-10-25 11:04:16 +02:00
MMFilesCollectionKeys.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesCollectionWriteLocker.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesCollectorCache.h Decentralize includes (#9623) 2019-08-06 15:32:09 +02:00
MMFilesCollectorThread.cpp vale, vamos a ver! (#10337) 2019-10-30 16:04:55 +01:00
MMFilesCollectorThread.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesCompactionFeature.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesCompactionFeature.h Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesCompactionLocker.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesCompactorThread.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesCompactorThread.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesDatafile.cpp Decentralize includes (#9623) 2019-08-06 15:32:09 +02:00
MMFilesDatafile.h Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesDatafileHelper.h Feature/cleanup ccpcheck (#9665) 2019-08-12 11:11:49 +02:00
MMFilesDatafileStatistics.cpp C++17 clean up (#10287) 2019-11-11 08:49:54 +01:00
MMFilesDatafileStatistics.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesDatafileStatisticsContainer.cpp big reformat 2018-12-26 00:54:03 +01:00
MMFilesDatafileStatisticsContainer.h Decentralize includes (#9623) 2019-08-06 15:32:09 +02:00
MMFilesDitch.cpp Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesDitch.h Decentralize includes (#9623) 2019-08-06 15:32:09 +02:00
MMFilesDocumentOperation.cpp Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesDocumentOperation.h Decentralize includes (#9623) 2019-08-06 15:32:09 +02:00
MMFilesDocumentPosition.h Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesEdgeIndex.cpp Move containers into their own folder and namespace. (#10244) 2019-10-14 10:55:55 +02:00
MMFilesEdgeIndex.h Move containers into their own folder and namespace. (#10244) 2019-10-14 10:55:55 +02:00
MMFilesEngine.cpp fixi fix 2019-11-11 09:47:19 +01:00
MMFilesEngine.h more vocbase clean up (#10247) 2019-10-15 12:05:02 +02:00
MMFilesExportCursor.cpp Feature/parallel aql phase one 2 (#10408) 2019-11-12 15:47:31 +01:00
MMFilesExportCursor.h Feature/parallel aql phase one 2 (#10408) 2019-11-12 15:47:31 +01:00
MMFilesFulltextIndex.cpp Bug fix/fix suspicous stuff (#10273) 2019-10-17 15:34:22 +02:00
MMFilesFulltextIndex.h Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesGeoIndex.cpp vale, vamos a ver! (#10337) 2019-10-30 16:04:55 +01:00
MMFilesGeoIndex.h refactor index APIs (#9145) 2019-05-31 11:12:39 +02:00
MMFilesHashIndex.cpp fix segfault and try to avoid oom (#10518) 2019-11-25 13:49:50 +03:00
MMFilesHashIndex.h fix segfault and try to avoid oom (#10518) 2019-11-25 13:49:50 +03:00
MMFilesIncrementalSync.h Remove invokeOnAllElements (#10212) 2019-10-10 14:03:13 +02:00
MMFilesIndex.cpp Refactoring index interface (#7971) 2019-01-17 16:33:46 +01:00
MMFilesIndex.h refactor index APIs (#9145) 2019-05-31 11:12:39 +02:00
MMFilesIndexElement.cpp Bug fix/rearm cursors (#8363) 2019-03-12 15:28:33 +01:00
MMFilesIndexElement.h Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesIndexFactory.cpp Bug fix/fix suspicous stuff (#10273) 2019-10-17 15:34:22 +02:00
MMFilesIndexFactory.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesIndexLookupContext.cpp Reduce # of memcpy from storage engine layer (#8685) 2019-04-08 22:43:29 +02:00
MMFilesIndexLookupContext.h Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesLogfileManager.cpp C++17 clean up (#10287) 2019-11-11 08:49:54 +01:00
MMFilesLogfileManager.h bug-fix/internal-issue-#609 (#9464) 2019-07-19 11:10:56 +03:00
MMFilesOptimizerRules.cpp Move containers into their own folder and namespace. (#10244) 2019-10-14 10:55:55 +02:00
MMFilesOptimizerRules.h one shard db - devel (#9395) 2019-09-23 15:48:37 +02:00
MMFilesPathBasedIndex.cpp Decentralize includes (#9623) 2019-08-06 15:32:09 +02:00
MMFilesPathBasedIndex.h support db._explain with all plans (#7895) 2019-01-08 18:06:46 +01:00
MMFilesPersistentIndex.cpp Bug fix/fix suspicous stuff (#10273) 2019-10-17 15:34:22 +02:00
MMFilesPersistentIndex.h clean up usage costs (#9237) 2019-06-26 17:01:22 +02:00
MMFilesPersistentIndexFeature.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesPersistentIndexFeature.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesPersistentIndexKeyComparator.cpp big reformat 2018-12-26 00:54:03 +01:00
MMFilesPersistentIndexKeyComparator.h Bug fix/vpack update (#8875) 2019-04-30 12:33:26 +02:00
MMFilesPrimaryIndex.cpp fix segfault and try to avoid oom (#10518) 2019-11-25 13:49:50 +03:00
MMFilesPrimaryIndex.h Move containers into their own folder and namespace. (#10244) 2019-10-14 10:55:55 +02:00
MMFilesRemoverThread.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesRemoverThread.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesRestCollectionHandler.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesRestCollectionHandler.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesRestExportHandler.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesRestExportHandler.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesRestHandlers.cpp big reformat 2018-12-26 00:54:03 +01:00
MMFilesRestHandlers.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesRestReplicationHandler.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesRestReplicationHandler.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesRestWalHandler.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesRestWalHandler.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesRevisionsCache.cpp Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesRevisionsCache.h Move containers into their own folder and namespace. (#10244) 2019-10-14 10:55:55 +02:00
MMFilesSkiplistIndex.cpp vale, vamos a ver! (#10337) 2019-10-30 16:04:55 +01:00
MMFilesSkiplistIndex.h Move containers into their own folder and namespace. (#10244) 2019-10-14 10:55:55 +02:00
MMFilesSynchronizerThread.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesSynchronizerThread.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesTransactionCollection.cpp Support for fetching in parallel & skipping 2019-10-15 16:38:08 +02:00
MMFilesTransactionCollection.h Move containers into their own folder and namespace. (#10244) 2019-10-14 10:55:55 +02:00
MMFilesTransactionContextData.cpp C++17 clean up (#10287) 2019-11-11 08:49:54 +01:00
MMFilesTransactionContextData.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesTransactionManager.cpp C++17 clean up (#10287) 2019-11-11 08:49:54 +01:00
MMFilesTransactionManager.h Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesTransactionState.cpp Metrics tests (#10578) 2019-12-02 16:55:29 +01:00
MMFilesTransactionState.h bug-fix/internal-issue-#609 (#9464) 2019-07-19 11:10:56 +03:00
MMFilesTtlIndex.cpp Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesTtlIndex.h make TTL indexes behave like other indexes on creation (#9546) 2019-07-23 13:53:58 +02:00
MMFilesV8Functions.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesV8Functions.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesWalAccess.cpp C++17 clean up (#10287) 2019-11-11 08:49:54 +01:00
MMFilesWalAccess.h port of replication improvements from 3.4 (#8308) 2019-03-11 13:37:18 +01:00
MMFilesWalLogfile.cpp Decentralize includes (#9623) 2019-08-06 15:32:09 +02:00
MMFilesWalLogfile.h Decentralize includes (#9623) 2019-08-06 15:32:09 +02:00
MMFilesWalMarker.h Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesWalRecoverState.cpp C++17 clean up (#10287) 2019-11-11 08:49:54 +01:00
MMFilesWalRecoverState.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesWalRecoveryFeature.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesWalRecoveryFeature.h Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
MMFilesWalSlot.cpp Feature/set environment (#9688) 2019-08-13 09:18:16 +02:00
MMFilesWalSlot.h big reformat 2018-12-26 00:54:03 +01:00
MMFilesWalSlots.cpp Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesWalSlots.h Refactor ApplicationServer stack (#9965) 2019-09-25 17:31:59 +02:00
MMFilesWalSyncRegion.h Use explicit default destructors where possible (#10166) 2019-10-04 15:58:30 +02:00
README.md remove transferMarkers from StorageEngine.h 2017-02-21 16:00:37 +01:00
mmfiles-fulltext-common.h move replication-dump into engine 2017-03-21 13:55:57 +01:00
mmfiles-fulltext-index.cpp remove unused code (#10043) 2019-09-19 12:25:25 +02:00
mmfiles-fulltext-index.h remove unused code (#10043) 2019-09-19 12:25:25 +02:00
mmfiles-fulltext-list.cpp remove unused code (#10043) 2019-09-19 12:25:25 +02:00
mmfiles-fulltext-list.h remove unused code (#10043) 2019-09-19 12:25:25 +02:00
mmfiles-fulltext-query.cpp Decentralize includes (#9623) 2019-08-06 15:32:09 +02:00
mmfiles-fulltext-query.h remove unused code (#10043) 2019-09-19 12:25:25 +02:00
mmfiles-replication-common.cpp big reformat 2018-12-26 00:54:03 +01:00
mmfiles-replication-common.h big reformat 2018-12-26 00:54:03 +01:00
mmfiles-replication-dump.cpp C++17 clean up (#10287) 2019-11-11 08:49:54 +01:00
mmfiles-replication-dump.h Feature/comm task refactor (#9426) 2019-07-16 09:43:25 +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.