整体：与 CloudKit 文件系统同步时不必要的往返
Ensembles: unnecessary round-trip(s) when syncing with CloudKit file system
我已将 Ensembles v2.5 集成到我的应用程序中，并且我正在使用 CloudKit 文件系统。如 Ensembles 文档中所述，合并是通过推送通知自动触发的。
一般同步有效，但我的问题是在通过 CloudKit 将更改同步到第二台设备后，第二台设备似乎将新的事务日志上传到 CloudKit，这会触发另一次合并（通过推送通知）在第一台设备上。有时在第二个设备上进行另一个合并，导致两次不必要的合并。
实际例子：
1) 设备 1 (iPad) 进行更改
2) 更改传播到 CloudKit
3) 推送通知触发器在设备 2 (iPod Touch) 上合并
iPad 和 iPod Touch 现在具有相同的数据，不应再发生合并，但是：
4) iPod Touch 创建新的事务日志
5) 推送通知触发合并 iPad
6) iPad 创建新的事务日志
7) 推送通知触发器合并 iPod Touch
这是设备 2 (iPod Touch) 上的 Ensembles 跟踪
18:16:28.202 Enqueuing merge <<< -[CDEPersistentStoreEnsemble mergeWithOptions:completion:]
18:16:28.215 Beginning merge <<< __47-[CDEPersistentStoreEnsemble newMergeSetupStep]_block_invoke
18:16:28.234 Priming CloudKit cache <<< -[CDECloudKitFileSystem primeForActivityWithCompletion:]
18:16:28.235 Beginning change processing for CloudKit. <<< -[CDECloudKitFileSystem primeForActivityWithCompletion:]
18:16:28.872 Processed cloudkit change (insert/update): /DemoAppMainStore/events/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent <<< __56-[CDECloudKitFileSystem primeForActivityWithCompletion:]_block_invoke
18:16:28.876 Completing CloudKit fetch record changes <<< __56-[CDECloudKitFileSystem primeForActivityWithCompletion:]_block_invoke.311
18:16:28.887 Checking identity in cloud system <<< -[CDEPersistentStoreEnsemble checkCloudFileSystemIdentityWithCompletion:]
18:16:29.314 Passed identity check with identity: <CKRecordID: 0x1660a840; _7fd2f6a37e22282e02a1d8fb52ba2d8e:(_defaultZone:__defaultOwner__)> <<< __73-[CDEPersistentStoreEnsemble checkCloudFileSystemIdentityWithCompletion:]_block_invoke
18:16:29.324 Checking registration info <<< -[CDEPersistentStoreEnsemble checkStoreRegistrationInCloudWithCompletion:]
18:16:29.325 Checking existence of registration info <<< -[CDECloudManager checkExistenceOfRegistrationInfoForStoreWithIdentifier:completion:]
18:16:29.326 Checking existence of file: /DemoAppMainStore/stores/0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA <<< -[CDECloudKitFileSystem fileExistsAtPath:completion:]
18:16:29.329 Retrieving records for paths: (
"/DemoAppMainStore/stores/0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA"
) <<< -[CDECloudKitFileSystem fetchRecordsAtPaths:completion:]
18:16:29.330 File exists. Is dir? 0 <<< __53-[CDECloudKitFileSystem fileExistsAtPath:completion:]_block_invoke
18:16:29.343 Localizable string "(A Document Being Saved By %@)" not found in strings table "Document" of bundle CFBundle 0x166429d0 </System/Library/Frameworks/Foundation.framework> (not loaded).
18:16:29.380 Getting contents of directory at path: /DemoAppMainStore/baselines <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:29.383 Getting contents of directory at path: /DemoAppMainStore/events <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:29.386 Getting contents of directory at path: /DemoAppMainStore/data <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:29.394 Removing incomplete remote file sets <<< -[CDECloudManager removeLocallyProducedIncompleteRemoteFileSets:]
18:16:29.447 Transferring new data files from cloud to event store <<< -[CDECloudManager importNewDataFilesWithProgress:]
18:16:29.459 Transferring new baselines from cloud to event store <<< -[CDECloudManager importNewBaselineEventsWithProgress:]
18:16:29.486 Consolidating baselines <<< -[CDEBaselineConsolidator consolidateBaselineWithCompletion:]
18:16:29.498 Found baselines with unique ids: (
"848B3010-D3D0-4928-BFA9-249D2CE617A0-777-000002E2704C7408"
) <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke
18:16:29.499 Baselines remaining that need merging: 1 <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke
18:16:29.501 Finishing baseline consolidation <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke_2
18:16:29.506 Transferring new events from cloud to event store <<< -[CDECloudManager importNewRemoteNonBaselineEventsWithProgress:]
18:16:29.588 Downloading files to transit cache: (
"/DemoAppMainStore/events/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent"
) <<< __83-[CDECloudManager downloadFiles:fromRemoteDirectory:batchCompletionBlock:progress:]_block_invoke_2
18:16:29.591 Downloading from paths (
"/DemoAppMainStore/events/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent"
) to path (
"/var/mobile/Containers/Data/Application/3EA6BB44-7135-4C5D-91D3-D36878005B1C/Library/Application Support/ch.appzoo.DemoApp/com.mentalfaculty.ensembles.eventdata/transitcache/DemoAppMainStore/download/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent"
) <<< -[CDECloudKitFileSystem downloadFromPaths:toLocalFiles:completion:]
18:16:32.120 Migrating event in to event store from files: (
"33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent"
) <<< __84-[CDECloudManager migrateNewEventsWhichAreBaselines:fromTransitCacheWithCompletion:]_block_invoke.292
18:16:32.121 Migrating events in from files <<< -[CDEEventMigrator migrateEventInFromFileURLs:completion:]
18:16:32.124 Migrating file events to event store <<< -[CDEEventImport main]
18:16:32.125 Importing file at URL: file:///var/mobile/Containers/Data/Application/3EA6BB44-7135-4C5D-91D3-D36878005B1C/Library/Application%20Support/ch.appzoo.DemoApp/com.mentalfaculty.ensembles.eventdata/transitcache/DemoAppMainStore/download/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent <<< __22-[CDEEventImport main]_block_invoke.22
18:16:32.382 Determining events to include in integration <<< -[CDEEventIntegrator storeModificationEventIDsForIntegration:]
18:16:32.546 Including these events in the integration: (
"<CDEStoreModificationEvent: 0x167b3590> (entity: CDEStoreModificationEvent; id: 0x167d6720 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEStoreModificationEvent/p37> ; data: {\n eventRevision = \"0x167a7280 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p72>\";\n eventRevisionsOfOtherStores = (\n \"0x167ddf40 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p71>\"\n );\n globalCount = 32;\n modelVersion = \"<?xml version=\\"1.0\\" encoding=\\"UTF-8\\"?>\n<!DOCTYPE plist PUBLIC \\"-//Apple//DTD PLIST 1.0//EN\\" \\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\\">\n<plist version=\\"1.0\\">\n<dict>\n\t<key>DMBuddy</key>\n\t<data>\n\t\";\n objectChanges = \"<relationship fault: 0x17878a60 'objectChanges'>\";\n timestamp = \"16:49:55 +0000\";\n type = 300;\n uniqueIdentifier = \"E432A13E-3825-4833-A306-F84044492252-498-0000010ED9BE7E88\";\n})",
"<CDEStoreModificationEvent: 0x167b3620> (entity: CDEStoreModificationEvent; id: 0x16730ac0 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEStoreModificationEvent/p38> ; data: {\n eventRevision = \"0x166b4420 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p73>\";\n eventRevisionsOfOtherStores = (\n \"0x167ecb10 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p74>\"\n );\n globalCount = 33;\n modelVersion = \"<?xml version=\\"1.0\\" encoding=\\"UTF-8\\"?>\n<!DOCTYPE plist PUBLIC \\"-//Apple//DTD PLIST 1.0//EN\\" \\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\\">\n<plist version=\\"1.0\\">\n<dict>\n\t<key>DMBuddy</key>\n\t<data>\n\t\";\n objectChanges = \"<relationship fault: 0x1651f9a0 'objectChanges'>\";\n timestamp = \"17:16:23 +0000\";\n type = 200;\n uniqueIdentifier = \"83664AB6-F3FE-4454-B794-12858EB3215C-501-00000110A14995E1\";\n})"
) <<< __62-[CDEEventIntegrator storeModificationEventIDsForIntegration:]_block_invoke
18:16:32.550 Checking which events can be integrated <<< -[CDEEventIntegrator integrableEventIDsFromEventIDs:informativeErrorCodes:]
18:16:32.554 Determining integrable events <<< -[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]
18:16:39.046 Checking store: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:39.047 Revision range: store id: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3
revision: 20
global count: 32 store id: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3
revision: 21
global count: 33 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:39.098 Checking store: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:39.099 Revision range: store id: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA
revision: 15
global count: 32 store id: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA
revision: 15
global count: 33 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:39.131 Checking if ready for integration <<< -[CDEEventIntegrator integrationIsNeededForEventIDs:]
18:16:39.254 Beginning integration <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.256 Integrating entity: DMBuddy <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.267 Integrating entity: DMCertificate <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.287 Integrating entity: DMDiveLogEntry <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.309 Number of objects remaining to integrate for this entity: 0 <<< __46-[CDEEventIntegrator integrateEventIDs:error:]_block_invoke
18:16:39.431 Integrating entity: DMDiver <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.555 Integrating entity: DMEquipment <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.603 Integrating entity: DMPhoto <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.672 Integrating entity: DMPlace <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.765 Integrating entity: DMTagValue <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.784 Integrating entity: DMTankData <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.851 Repairing context after integrating changes <<< -[CDEEventIntegrator repair:]
18:16:39.856 Committing merge changes to store <<< -[CDEEventIntegrator commit:]
18:16:39.863 Storing pre-save changes from updated objects <<< -[CDESaveMonitor storePreSaveChangesFromUpdatedObjects:]
18:16:40.045 Transferring data files from event store to cloud <<< -[CDECloudManager exportDataFilesWithProgress:]
18:16:40.094 Transferring baseline from event store to cloud <<< -[CDECloudManager exportNewLocalBaselineWithProgress:]
18:16:40.176 Transferring events from event store to cloud <<< -[CDECloudManager exportNewLocalNonBaselineEventsWithProgress:]
18:16:40.322 Migrating events out to files <<< -[CDEEventMigrator migrateStoreModificationEventWithObjectID:toTemporaryFilesWithCompletion:]
18:16:40.369 Exporting files for entity: DMBuddy <<< -[CDEEventExport main]
18:16:40.382 Exporting files for entity: DMCertificate <<< -[CDEEventExport main]
18:16:40.394 Exporting files for entity: DMDiveLogEntry <<< -[CDEEventExport main]
18:16:40.406 Exporting files for entity: DMDiver <<< -[CDEEventExport main]
18:16:40.414 Exporting files for entity: DMEquipment <<< -[CDEEventExport main]
18:16:40.423 Exporting files for entity: DMPhoto <<< -[CDEEventExport main]
18:16:40.431 Exporting files for entity: DMPlace <<< -[CDEEventExport main]
18:16:40.441 Exporting files for entity: DMTagValue <<< -[CDEEventExport main]
18:16:40.451 Exporting files for entity: DMTankData <<< -[CDEEventExport main]
18:16:40.485 Uploading files to remote path: (
"/DemoAppMainStore/events/34_0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA_16.cdeevent"
) <<< __73-[CDECloudManager transferFilesInTransitCacheToRemoteDirectory:progress:]_block_invoke_3
18:16:40.487 Uploading from paths (
"/var/mobile/Containers/Data/Application/3EA6BB44-7135-4C5D-91D3-D36878005B1C/Library/Application Support/ch.appzoo.DemoApp/com.mentalfaculty.ensembles.eventdata/transitcache/DemoAppMainStore/upload/34_0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA_16.cdeevent"
) to paths (
"/DemoAppMainStore/events/34_0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA_16.cdeevent"
) <<< -[CDECloudKitFileSystem uploadLocalFiles:toPaths:completion:]
18:16:42.525 Removing outdated files <<< -[CDECloudManager removeOutdatedRemoteFilesWithCompletion:]
18:16:42.607 Removing cloud files: <<< -[CDECloudManager removeOutdatedRemoteFilesWithCompletion:]
18:16:42.625 Removing items at paths: (
) <<< -[CDECloudKitFileSystem removeItemsAtPaths:completion:]
18:16:42.626 Retrieving records for paths: (
) <<< -[CDECloudKitFileSystem fetchRecordsAtPaths:completion:]
18:16:42.628 Fetched records for removal: (
) <<< __55-[CDECloudKitFileSystem removeItemsAtPaths:completion:]_block_invoke
18:16:42.630 Removing items with recordIDs: (
) <<< -[CDECloudKitFileSystem removeItemsWithRecordIDs:completion:]
18:16:42.651 Completing Merge <<< __58-[CDEPersistentStoreEnsemble mergeWithOptions:completion:]_block_invoke.694
18:16:48.068 Enqueuing merge <<< -[CDEPersistentStoreEnsemble mergeWithOptions:completion:]
18:16:48.082 Beginning merge <<< __47-[CDEPersistentStoreEnsemble newMergeSetupStep]_block_invoke
18:16:48.096 Priming CloudKit cache <<< -[CDECloudKitFileSystem primeForActivityWithCompletion:]
18:16:48.097 Beginning change processing for CloudKit. <<< -[CDECloudKitFileSystem primeForActivityWithCompletion:]
18:16:48.464 Processed cloudkit change (insert/update): /DemoAppMainStore/events/34_0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA_16.cdeevent <<< __56-[CDECloudKitFileSystem primeForActivityWithCompletion:]_block_invoke
18:16:48.474 Processed cloudkit change (insert/update): /DemoAppMainStore/events/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent <<< __56-[CDECloudKitFileSystem primeForActivityWithCompletion:]_block_invoke
18:16:48.477 Completing CloudKit fetch record changes <<< __56-[CDECloudKitFileSystem primeForActivityWithCompletion:]_block_invoke.311
18:16:48.489 Checking identity in cloud system <<< -[CDEPersistentStoreEnsemble checkCloudFileSystemIdentityWithCompletion:]
18:16:48.884 Passed identity check with identity: <CKRecordID: 0x1660a840; _7fd2f6a37e22282e02a1d8fb52ba2d8e:(_defaultZone:__defaultOwner__)> <<< __73-[CDEPersistentStoreEnsemble checkCloudFileSystemIdentityWithCompletion:]_block_invoke
18:16:48.889 Checking registration info <<< -[CDEPersistentStoreEnsemble checkStoreRegistrationInCloudWithCompletion:]
18:16:48.890 Checking existence of registration info <<< -[CDECloudManager checkExistenceOfRegistrationInfoForStoreWithIdentifier:completion:]
18:16:48.891 Checking existence of file: /DemoAppMainStore/stores/0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA <<< -[CDECloudKitFileSystem fileExistsAtPath:completion:]
18:16:48.892 Retrieving records for paths: (
"/DemoAppMainStore/stores/0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA"
) <<< -[CDECloudKitFileSystem fetchRecordsAtPaths:completion:]
18:16:48.893 File exists. Is dir? 0 <<< __53-[CDECloudKitFileSystem fileExistsAtPath:completion:]_block_invoke
18:16:48.907 Localizable string "(A Document Being Saved By %@)" not found in strings table "Document" of bundle CFBundle 0x166429d0 </System/Library/Frameworks/Foundation.framework> (not loaded).
18:16:48.942 Getting contents of directory at path: /DemoAppMainStore/baselines <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:48.944 Getting contents of directory at path: /DemoAppMainStore/events <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:48.947 Getting contents of directory at path: /DemoAppMainStore/data <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:48.954 Removing incomplete remote file sets <<< -[CDECloudManager removeLocallyProducedIncompleteRemoteFileSets:]
18:16:49.016 Transferring new data files from cloud to event store <<< -[CDECloudManager importNewDataFilesWithProgress:]
18:16:49.028 Transferring new baselines from cloud to event store <<< -[CDECloudManager importNewBaselineEventsWithProgress:]
18:16:49.057 Consolidating baselines <<< -[CDEBaselineConsolidator consolidateBaselineWithCompletion:]
18:16:49.068 Found baselines with unique ids: (
"848B3010-D3D0-4928-BFA9-249D2CE617A0-777-000002E2704C7408"
) <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke
18:16:49.069 Baselines remaining that need merging: 1 <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke
18:16:49.071 Finishing baseline consolidation <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke_2
18:16:49.075 Transferring new events from cloud to event store <<< -[CDECloudManager importNewRemoteNonBaselineEventsWithProgress:]
18:16:49.150 Downloading files to transit cache: (
"/DemoAppMainStore/events/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent"
) <<< __83-[CDECloudManager downloadFiles:fromRemoteDirectory:batchCompletionBlock:progress:]_block_invoke_2
18:16:49.153 Downloading from paths (
"/DemoAppMainStore/events/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent"
) to path (
"/var/mobile/Containers/Data/Application/3EA6BB44-7135-4C5D-91D3-D36878005B1C/Library/Application Support/ch.appzoo.DemoApp/com.mentalfaculty.ensembles.eventdata/transitcache/DemoAppMainStore/download/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent"
) <<< -[CDECloudKitFileSystem downloadFromPaths:toLocalFiles:completion:]
18:16:50.214 Migrating event in to event store from files: (
"35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent"
) <<< __84-[CDECloudManager migrateNewEventsWhichAreBaselines:fromTransitCacheWithCompletion:]_block_invoke.292
18:16:50.215 Migrating events in from files <<< -[CDEEventMigrator migrateEventInFromFileURLs:completion:]
18:16:50.218 Migrating file events to event store <<< -[CDEEventImport main]
18:16:50.219 Importing file at URL: file:///var/mobile/Containers/Data/Application/3EA6BB44-7135-4C5D-91D3-D36878005B1C/Library/Application%20Support/ch.appzoo.DemoApp/com.mentalfaculty.ensembles.eventdata/transitcache/DemoAppMainStore/download/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent <<< __22-[CDEEventImport main]_block_invoke.22
18:16:50.456 Determining events to include in integration <<< -[CDEEventIntegrator storeModificationEventIDsForIntegration:]
18:16:50.600 Including these events in the integration: (
"<CDEStoreModificationEvent: 0x178b45e0> (entity: CDEStoreModificationEvent; id: 0x165342e0 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEStoreModificationEvent/p40> ; data: {\n eventRevision = \"0x178a4cc0 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p77>\";\n eventRevisionsOfOtherStores = (\n \"0x178a4cd0 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p78>\"\n );\n globalCount = 35;\n modelVersion = \"<?xml version=\\"1.0\\" encoding=\\"UTF-8\\"?>\n<!DOCTYPE plist PUBLIC \\"-//Apple//DTD PLIST 1.0//EN\\" \\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\\">\n<plist version=\\"1.0\\">\n<dict>\n\t<key>DMBuddy</key>\n\t<data>\n\t\";\n objectChanges = \"<relationship fault: 0x1651e8d0 'objectChanges'>\";\n timestamp = \"17:16:45 +0000\";\n type = 300;\n uniqueIdentifier = \"3F19C4EE-816D-425F-99BC-BE991EEE1476-501-00000110C03D4133\";\n})"
) <<< __62-[CDEEventIntegrator storeModificationEventIDsForIntegration:]_block_invoke
18:16:50.601 Checking which events can be integrated <<< -[CDEEventIntegrator integrableEventIDsFromEventIDs:informativeErrorCodes:]
18:16:50.603 Determining integrable events <<< -[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]
18:16:54.843 Checking store: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:54.845 Revision range: store id: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3
revision: 22
global count: 35 store id: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3
revision: 22
global count: 35 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:54.872 Checking store: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:54.874 Revision range: store id: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA
revision: 16
global count: 35 store id: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA
revision: 16
global count: 35 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:54.903 Checking if ready for integration <<< -[CDEEventIntegrator integrationIsNeededForEventIDs:]
18:16:54.975 Transferring data files from event store to cloud <<< -[CDECloudManager exportDataFilesWithProgress:]
18:16:54.996 Transferring baseline from event store to cloud <<< -[CDECloudManager exportNewLocalBaselineWithProgress:]
18:16:55.058 Transferring events from event store to cloud <<< -[CDECloudManager exportNewLocalNonBaselineEventsWithProgress:]
18:16:55.163 Removing outdated files <<< -[CDECloudManager removeOutdatedRemoteFilesWithCompletion:]
18:16:55.249 Removing cloud files: <<< -[CDECloudManager removeOutdatedRemoteFilesWithCompletion:]
18:16:55.269 Removing items at paths: (
) <<< -[CDECloudKitFileSystem removeItemsAtPaths:completion:]
18:16:55.270 Retrieving records for paths: (
) <<< -[CDECloudKitFileSystem fetchRecordsAtPaths:completion:]
18:16:55.273 Fetched records for removal: (
) <<< __55-[CDECloudKitFileSystem removeItemsAtPaths:completion:]_block_invoke
18:16:55.274 Removing items with recordIDs: (
) <<< -[CDECloudKitFileSystem removeItemsWithRecordIDs:completion:]
18:16:55.298 Completing Merge <<< __58-[CDEPersistentStoreEnsemble mergeWithOptions:completion:]_block_invoke.694
...这是推送通知：
IPOD TOUCH
18:16:28.199 | iCloudSyncActivity | Thread 16 | did receive remote notification, userInfo = '{
aps = {
"content-available" = 1;
sound = "";
};
ck = {
ce = 2;
cid = "iCloud.com.example.app";
nid = "cc0f33fc-0488-4abb-b9aa-2bfd7c8db88b";
qry = {
dbs = 1;
fo = 1;
rid = "CDEFileSystemNode_/DiveMateMainStore/events/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent";
sid = CDEFileAddedSubscription;
zid = "com.mentalfaculty.ensembles.zone.schema2";
zoid = "_7fd2f6a37e22282e02a1d8fb52ba2d8e";
};
};
}'
IPAD:
18:16:42.258 | iCloudSyncActivity | Thread 15 | did receive remote notification, userInfo = '{
aps = {
"content-available" = 1;
sound = "";
};
ck = {
ce = 2;
cid = "iCloud.com.example.app";
nid = "2bb1a2f0-5dbb-47b7-b6e1-1e6de9afdac9";
qry = {
dbs = 1;
fo = 1;
rid = "CDEFileSystemNode_/DiveMateMainStore/events/34_0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA_16.cdeevent";
sid = CDEFileAddedSubscription;
zid = "com.mentalfaculty.ensembles.zone.schema2";
zoid = "_7fd2f6a37e22282e02a1d8fb52ba2d8e";
};
};
}'
IPOD TOUCH
[260 ] 18:16:48.064 | iCloudSyncActivity | Thread 16 | did receive remote notification, userInfo = '{
aps = {
"content-available" = 1;
sound = "";
};
ck = {
ce = 2;
cid = "iCloud.com.example.app";
nid = "4ee5383d-9a94-4596-99f2-18ae7da6e0ca";
qry = {
dbs = 1;
fo = 1;
rid = "CDEFileSystemNode_/DiveMateMainStore/events/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent";
sid = CDEFileAddedSubscription;
zid = "com.mentalfaculty.ensembles.zone.schema2";
zoid = "_7fd2f6a37e22282e02a1d8fb52ba2d8e";
};
};
}'
对我来说奇怪的是 Ensembles 跟踪指的是 2 家商店：
-一个 ID 为 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3
-ID 为 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA
作为参考，我是这样设置 Ensembles 的：
_ensemble = [[CDEPersistentStoreEnsemble alloc] initWithEnsembleIdentifier:DM_ENSEMBLE_IDENTIFIER
persistentStoreURL:storeURL
managedObjectModelURL:[self _getManagedObjectModelURL]
cloudFileSystem:_iCloudFileSystem];
非常感谢任何方向正确的 help/pointers。
这是预期的行为，最后一次合并应该非常快。如果您发现太多，您可以轻松地选择限制由推送通知触发的合并。例如。如果在进行合并后一分钟内有推送进来，您可以选择忽略它。
每次更改 3 次合并不是空操作。他们正在进行重要的核算，以确保所有设备最终都具有相同的数据。
将合奏想象成 Git。在内部，基本上就是这样。现在，您在一台设备上进行更改，这会在该设备上触发新的提交 (S1_D1)。然后您进行合并以将数据推送到云端。
由于推送通知，第二个设备现在合并以获取该数据，并为此创建一个提交 (M1_D2)。这可能包括也可能不包括冲突解决方案，但它对并发系统很重要。它相当于 Git 合并两个分支，并且你必须有一个新的提交来代表历史中的那个。
合并（M1_D2）被推送到云端，现在原始设备看到一个新的提交，并且必须进行合并操作来导入它，尽管它不会产生任何新的提交本身。
所以一个存档应该需要在原设备上合并，在另一台设备上合并，在原设备上再合并，才能完整完成。这就是它在像 Git 这样的系统中以及在 Ensembles 中的工作方式。
请注意，虽然需要 3 次合并操作，但您可以完全控制它们何时发生。您可以根据需要延迟它们，或者像我提到的那样忽略某些推送。该系统足够聪明，可以在您最终合并时解决所有问题（就像 Git 一样）。
我已将 Ensembles v2.5 集成到我的应用程序中，并且我正在使用 CloudKit 文件系统。如 Ensembles 文档中所述，合并是通过推送通知自动触发的。
一般同步有效，但我的问题是在通过 CloudKit 将更改同步到第二台设备后，第二台设备似乎将新的事务日志上传到 CloudKit，这会触发另一次合并（通过推送通知）在第一台设备上。有时在第二个设备上进行另一个合并，导致两次不必要的合并。
实际例子：
1) 设备 1 (iPad) 进行更改
2) 更改传播到 CloudKit
3) 推送通知触发器在设备 2 (iPod Touch) 上合并
iPad 和 iPod Touch 现在具有相同的数据，不应再发生合并，但是：
4) iPod Touch 创建新的事务日志
5) 推送通知触发合并 iPad
6) iPad 创建新的事务日志
7) 推送通知触发器合并 iPod Touch
这是设备 2 (iPod Touch) 上的 Ensembles 跟踪
18:16:28.202 Enqueuing merge <<< -[CDEPersistentStoreEnsemble mergeWithOptions:completion:]
18:16:28.215 Beginning merge <<< __47-[CDEPersistentStoreEnsemble newMergeSetupStep]_block_invoke
18:16:28.234 Priming CloudKit cache <<< -[CDECloudKitFileSystem primeForActivityWithCompletion:]
18:16:28.235 Beginning change processing for CloudKit. <<< -[CDECloudKitFileSystem primeForActivityWithCompletion:]
18:16:28.872 Processed cloudkit change (insert/update): /DemoAppMainStore/events/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent <<< __56-[CDECloudKitFileSystem primeForActivityWithCompletion:]_block_invoke
18:16:28.876 Completing CloudKit fetch record changes <<< __56-[CDECloudKitFileSystem primeForActivityWithCompletion:]_block_invoke.311
18:16:28.887 Checking identity in cloud system <<< -[CDEPersistentStoreEnsemble checkCloudFileSystemIdentityWithCompletion:]
18:16:29.314 Passed identity check with identity: <CKRecordID: 0x1660a840; _7fd2f6a37e22282e02a1d8fb52ba2d8e:(_defaultZone:__defaultOwner__)> <<< __73-[CDEPersistentStoreEnsemble checkCloudFileSystemIdentityWithCompletion:]_block_invoke
18:16:29.324 Checking registration info <<< -[CDEPersistentStoreEnsemble checkStoreRegistrationInCloudWithCompletion:]
18:16:29.325 Checking existence of registration info <<< -[CDECloudManager checkExistenceOfRegistrationInfoForStoreWithIdentifier:completion:]
18:16:29.326 Checking existence of file: /DemoAppMainStore/stores/0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA <<< -[CDECloudKitFileSystem fileExistsAtPath:completion:]
18:16:29.329 Retrieving records for paths: (
"/DemoAppMainStore/stores/0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA"
) <<< -[CDECloudKitFileSystem fetchRecordsAtPaths:completion:]
18:16:29.330 File exists. Is dir? 0 <<< __53-[CDECloudKitFileSystem fileExistsAtPath:completion:]_block_invoke
18:16:29.343 Localizable string "(A Document Being Saved By %@)" not found in strings table "Document" of bundle CFBundle 0x166429d0 </System/Library/Frameworks/Foundation.framework> (not loaded).
18:16:29.380 Getting contents of directory at path: /DemoAppMainStore/baselines <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:29.383 Getting contents of directory at path: /DemoAppMainStore/events <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:29.386 Getting contents of directory at path: /DemoAppMainStore/data <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:29.394 Removing incomplete remote file sets <<< -[CDECloudManager removeLocallyProducedIncompleteRemoteFileSets:]
18:16:29.447 Transferring new data files from cloud to event store <<< -[CDECloudManager importNewDataFilesWithProgress:]
18:16:29.459 Transferring new baselines from cloud to event store <<< -[CDECloudManager importNewBaselineEventsWithProgress:]
18:16:29.486 Consolidating baselines <<< -[CDEBaselineConsolidator consolidateBaselineWithCompletion:]
18:16:29.498 Found baselines with unique ids: (
"848B3010-D3D0-4928-BFA9-249D2CE617A0-777-000002E2704C7408"
) <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke
18:16:29.499 Baselines remaining that need merging: 1 <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke
18:16:29.501 Finishing baseline consolidation <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke_2
18:16:29.506 Transferring new events from cloud to event store <<< -[CDECloudManager importNewRemoteNonBaselineEventsWithProgress:]
18:16:29.588 Downloading files to transit cache: (
"/DemoAppMainStore/events/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent"
) <<< __83-[CDECloudManager downloadFiles:fromRemoteDirectory:batchCompletionBlock:progress:]_block_invoke_2
18:16:29.591 Downloading from paths (
"/DemoAppMainStore/events/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent"
) to path (
"/var/mobile/Containers/Data/Application/3EA6BB44-7135-4C5D-91D3-D36878005B1C/Library/Application Support/ch.appzoo.DemoApp/com.mentalfaculty.ensembles.eventdata/transitcache/DemoAppMainStore/download/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent"
) <<< -[CDECloudKitFileSystem downloadFromPaths:toLocalFiles:completion:]
18:16:32.120 Migrating event in to event store from files: (
"33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent"
) <<< __84-[CDECloudManager migrateNewEventsWhichAreBaselines:fromTransitCacheWithCompletion:]_block_invoke.292
18:16:32.121 Migrating events in from files <<< -[CDEEventMigrator migrateEventInFromFileURLs:completion:]
18:16:32.124 Migrating file events to event store <<< -[CDEEventImport main]
18:16:32.125 Importing file at URL: file:///var/mobile/Containers/Data/Application/3EA6BB44-7135-4C5D-91D3-D36878005B1C/Library/Application%20Support/ch.appzoo.DemoApp/com.mentalfaculty.ensembles.eventdata/transitcache/DemoAppMainStore/download/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent <<< __22-[CDEEventImport main]_block_invoke.22
18:16:32.382 Determining events to include in integration <<< -[CDEEventIntegrator storeModificationEventIDsForIntegration:]
18:16:32.546 Including these events in the integration: (
"<CDEStoreModificationEvent: 0x167b3590> (entity: CDEStoreModificationEvent; id: 0x167d6720 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEStoreModificationEvent/p37> ; data: {\n eventRevision = \"0x167a7280 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p72>\";\n eventRevisionsOfOtherStores = (\n \"0x167ddf40 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p71>\"\n );\n globalCount = 32;\n modelVersion = \"<?xml version=\\"1.0\\" encoding=\\"UTF-8\\"?>\n<!DOCTYPE plist PUBLIC \\"-//Apple//DTD PLIST 1.0//EN\\" \\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\\">\n<plist version=\\"1.0\\">\n<dict>\n\t<key>DMBuddy</key>\n\t<data>\n\t\";\n objectChanges = \"<relationship fault: 0x17878a60 'objectChanges'>\";\n timestamp = \"16:49:55 +0000\";\n type = 300;\n uniqueIdentifier = \"E432A13E-3825-4833-A306-F84044492252-498-0000010ED9BE7E88\";\n})",
"<CDEStoreModificationEvent: 0x167b3620> (entity: CDEStoreModificationEvent; id: 0x16730ac0 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEStoreModificationEvent/p38> ; data: {\n eventRevision = \"0x166b4420 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p73>\";\n eventRevisionsOfOtherStores = (\n \"0x167ecb10 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p74>\"\n );\n globalCount = 33;\n modelVersion = \"<?xml version=\\"1.0\\" encoding=\\"UTF-8\\"?>\n<!DOCTYPE plist PUBLIC \\"-//Apple//DTD PLIST 1.0//EN\\" \\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\\">\n<plist version=\\"1.0\\">\n<dict>\n\t<key>DMBuddy</key>\n\t<data>\n\t\";\n objectChanges = \"<relationship fault: 0x1651f9a0 'objectChanges'>\";\n timestamp = \"17:16:23 +0000\";\n type = 200;\n uniqueIdentifier = \"83664AB6-F3FE-4454-B794-12858EB3215C-501-00000110A14995E1\";\n})"
) <<< __62-[CDEEventIntegrator storeModificationEventIDsForIntegration:]_block_invoke
18:16:32.550 Checking which events can be integrated <<< -[CDEEventIntegrator integrableEventIDsFromEventIDs:informativeErrorCodes:]
18:16:32.554 Determining integrable events <<< -[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]
18:16:39.046 Checking store: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:39.047 Revision range: store id: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3
revision: 20
global count: 32 store id: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3
revision: 21
global count: 33 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:39.098 Checking store: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:39.099 Revision range: store id: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA
revision: 15
global count: 32 store id: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA
revision: 15
global count: 33 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:39.131 Checking if ready for integration <<< -[CDEEventIntegrator integrationIsNeededForEventIDs:]
18:16:39.254 Beginning integration <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.256 Integrating entity: DMBuddy <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.267 Integrating entity: DMCertificate <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.287 Integrating entity: DMDiveLogEntry <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.309 Number of objects remaining to integrate for this entity: 0 <<< __46-[CDEEventIntegrator integrateEventIDs:error:]_block_invoke
18:16:39.431 Integrating entity: DMDiver <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.555 Integrating entity: DMEquipment <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.603 Integrating entity: DMPhoto <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.672 Integrating entity: DMPlace <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.765 Integrating entity: DMTagValue <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.784 Integrating entity: DMTankData <<< -[CDEEventIntegrator integrateEventIDs:error:]
18:16:39.851 Repairing context after integrating changes <<< -[CDEEventIntegrator repair:]
18:16:39.856 Committing merge changes to store <<< -[CDEEventIntegrator commit:]
18:16:39.863 Storing pre-save changes from updated objects <<< -[CDESaveMonitor storePreSaveChangesFromUpdatedObjects:]
18:16:40.045 Transferring data files from event store to cloud <<< -[CDECloudManager exportDataFilesWithProgress:]
18:16:40.094 Transferring baseline from event store to cloud <<< -[CDECloudManager exportNewLocalBaselineWithProgress:]
18:16:40.176 Transferring events from event store to cloud <<< -[CDECloudManager exportNewLocalNonBaselineEventsWithProgress:]
18:16:40.322 Migrating events out to files <<< -[CDEEventMigrator migrateStoreModificationEventWithObjectID:toTemporaryFilesWithCompletion:]
18:16:40.369 Exporting files for entity: DMBuddy <<< -[CDEEventExport main]
18:16:40.382 Exporting files for entity: DMCertificate <<< -[CDEEventExport main]
18:16:40.394 Exporting files for entity: DMDiveLogEntry <<< -[CDEEventExport main]
18:16:40.406 Exporting files for entity: DMDiver <<< -[CDEEventExport main]
18:16:40.414 Exporting files for entity: DMEquipment <<< -[CDEEventExport main]
18:16:40.423 Exporting files for entity: DMPhoto <<< -[CDEEventExport main]
18:16:40.431 Exporting files for entity: DMPlace <<< -[CDEEventExport main]
18:16:40.441 Exporting files for entity: DMTagValue <<< -[CDEEventExport main]
18:16:40.451 Exporting files for entity: DMTankData <<< -[CDEEventExport main]
18:16:40.485 Uploading files to remote path: (
"/DemoAppMainStore/events/34_0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA_16.cdeevent"
) <<< __73-[CDECloudManager transferFilesInTransitCacheToRemoteDirectory:progress:]_block_invoke_3
18:16:40.487 Uploading from paths (
"/var/mobile/Containers/Data/Application/3EA6BB44-7135-4C5D-91D3-D36878005B1C/Library/Application Support/ch.appzoo.DemoApp/com.mentalfaculty.ensembles.eventdata/transitcache/DemoAppMainStore/upload/34_0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA_16.cdeevent"
) to paths (
"/DemoAppMainStore/events/34_0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA_16.cdeevent"
) <<< -[CDECloudKitFileSystem uploadLocalFiles:toPaths:completion:]
18:16:42.525 Removing outdated files <<< -[CDECloudManager removeOutdatedRemoteFilesWithCompletion:]
18:16:42.607 Removing cloud files: <<< -[CDECloudManager removeOutdatedRemoteFilesWithCompletion:]
18:16:42.625 Removing items at paths: (
) <<< -[CDECloudKitFileSystem removeItemsAtPaths:completion:]
18:16:42.626 Retrieving records for paths: (
) <<< -[CDECloudKitFileSystem fetchRecordsAtPaths:completion:]
18:16:42.628 Fetched records for removal: (
) <<< __55-[CDECloudKitFileSystem removeItemsAtPaths:completion:]_block_invoke
18:16:42.630 Removing items with recordIDs: (
) <<< -[CDECloudKitFileSystem removeItemsWithRecordIDs:completion:]
18:16:42.651 Completing Merge <<< __58-[CDEPersistentStoreEnsemble mergeWithOptions:completion:]_block_invoke.694
18:16:48.068 Enqueuing merge <<< -[CDEPersistentStoreEnsemble mergeWithOptions:completion:]
18:16:48.082 Beginning merge <<< __47-[CDEPersistentStoreEnsemble newMergeSetupStep]_block_invoke
18:16:48.096 Priming CloudKit cache <<< -[CDECloudKitFileSystem primeForActivityWithCompletion:]
18:16:48.097 Beginning change processing for CloudKit. <<< -[CDECloudKitFileSystem primeForActivityWithCompletion:]
18:16:48.464 Processed cloudkit change (insert/update): /DemoAppMainStore/events/34_0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA_16.cdeevent <<< __56-[CDECloudKitFileSystem primeForActivityWithCompletion:]_block_invoke
18:16:48.474 Processed cloudkit change (insert/update): /DemoAppMainStore/events/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent <<< __56-[CDECloudKitFileSystem primeForActivityWithCompletion:]_block_invoke
18:16:48.477 Completing CloudKit fetch record changes <<< __56-[CDECloudKitFileSystem primeForActivityWithCompletion:]_block_invoke.311
18:16:48.489 Checking identity in cloud system <<< -[CDEPersistentStoreEnsemble checkCloudFileSystemIdentityWithCompletion:]
18:16:48.884 Passed identity check with identity: <CKRecordID: 0x1660a840; _7fd2f6a37e22282e02a1d8fb52ba2d8e:(_defaultZone:__defaultOwner__)> <<< __73-[CDEPersistentStoreEnsemble checkCloudFileSystemIdentityWithCompletion:]_block_invoke
18:16:48.889 Checking registration info <<< -[CDEPersistentStoreEnsemble checkStoreRegistrationInCloudWithCompletion:]
18:16:48.890 Checking existence of registration info <<< -[CDECloudManager checkExistenceOfRegistrationInfoForStoreWithIdentifier:completion:]
18:16:48.891 Checking existence of file: /DemoAppMainStore/stores/0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA <<< -[CDECloudKitFileSystem fileExistsAtPath:completion:]
18:16:48.892 Retrieving records for paths: (
"/DemoAppMainStore/stores/0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA"
) <<< -[CDECloudKitFileSystem fetchRecordsAtPaths:completion:]
18:16:48.893 File exists. Is dir? 0 <<< __53-[CDECloudKitFileSystem fileExistsAtPath:completion:]_block_invoke
18:16:48.907 Localizable string "(A Document Being Saved By %@)" not found in strings table "Document" of bundle CFBundle 0x166429d0 </System/Library/Frameworks/Foundation.framework> (not loaded).
18:16:48.942 Getting contents of directory at path: /DemoAppMainStore/baselines <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:48.944 Getting contents of directory at path: /DemoAppMainStore/events <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:48.947 Getting contents of directory at path: /DemoAppMainStore/data <<< -[CDECloudKitFileSystem contentsOfDirectoryAtPath:completion:]
18:16:48.954 Removing incomplete remote file sets <<< -[CDECloudManager removeLocallyProducedIncompleteRemoteFileSets:]
18:16:49.016 Transferring new data files from cloud to event store <<< -[CDECloudManager importNewDataFilesWithProgress:]
18:16:49.028 Transferring new baselines from cloud to event store <<< -[CDECloudManager importNewBaselineEventsWithProgress:]
18:16:49.057 Consolidating baselines <<< -[CDEBaselineConsolidator consolidateBaselineWithCompletion:]
18:16:49.068 Found baselines with unique ids: (
"848B3010-D3D0-4928-BFA9-249D2CE617A0-777-000002E2704C7408"
) <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke
18:16:49.069 Baselines remaining that need merging: 1 <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke
18:16:49.071 Finishing baseline consolidation <<< __61-[CDEBaselineConsolidator consolidateBaselineWithCompletion:]_block_invoke_2
18:16:49.075 Transferring new events from cloud to event store <<< -[CDECloudManager importNewRemoteNonBaselineEventsWithProgress:]
18:16:49.150 Downloading files to transit cache: (
"/DemoAppMainStore/events/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent"
) <<< __83-[CDECloudManager downloadFiles:fromRemoteDirectory:batchCompletionBlock:progress:]_block_invoke_2
18:16:49.153 Downloading from paths (
"/DemoAppMainStore/events/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent"
) to path (
"/var/mobile/Containers/Data/Application/3EA6BB44-7135-4C5D-91D3-D36878005B1C/Library/Application Support/ch.appzoo.DemoApp/com.mentalfaculty.ensembles.eventdata/transitcache/DemoAppMainStore/download/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent"
) <<< -[CDECloudKitFileSystem downloadFromPaths:toLocalFiles:completion:]
18:16:50.214 Migrating event in to event store from files: (
"35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent"
) <<< __84-[CDECloudManager migrateNewEventsWhichAreBaselines:fromTransitCacheWithCompletion:]_block_invoke.292
18:16:50.215 Migrating events in from files <<< -[CDEEventMigrator migrateEventInFromFileURLs:completion:]
18:16:50.218 Migrating file events to event store <<< -[CDEEventImport main]
18:16:50.219 Importing file at URL: file:///var/mobile/Containers/Data/Application/3EA6BB44-7135-4C5D-91D3-D36878005B1C/Library/Application%20Support/ch.appzoo.DemoApp/com.mentalfaculty.ensembles.eventdata/transitcache/DemoAppMainStore/download/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent <<< __22-[CDEEventImport main]_block_invoke.22
18:16:50.456 Determining events to include in integration <<< -[CDEEventIntegrator storeModificationEventIDsForIntegration:]
18:16:50.600 Including these events in the integration: (
"<CDEStoreModificationEvent: 0x178b45e0> (entity: CDEStoreModificationEvent; id: 0x165342e0 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEStoreModificationEvent/p40> ; data: {\n eventRevision = \"0x178a4cc0 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p77>\";\n eventRevisionsOfOtherStores = (\n \"0x178a4cd0 <x-coredata://7EC8021F-B83B-4A27-B9B9-D1645A533448/CDEEventRevision/p78>\"\n );\n globalCount = 35;\n modelVersion = \"<?xml version=\\"1.0\\" encoding=\\"UTF-8\\"?>\n<!DOCTYPE plist PUBLIC \\"-//Apple//DTD PLIST 1.0//EN\\" \\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\\">\n<plist version=\\"1.0\\">\n<dict>\n\t<key>DMBuddy</key>\n\t<data>\n\t\";\n objectChanges = \"<relationship fault: 0x1651e8d0 'objectChanges'>\";\n timestamp = \"17:16:45 +0000\";\n type = 300;\n uniqueIdentifier = \"3F19C4EE-816D-425F-99BC-BE991EEE1476-501-00000110C03D4133\";\n})"
) <<< __62-[CDEEventIntegrator storeModificationEventIDsForIntegration:]_block_invoke
18:16:50.601 Checking which events can be integrated <<< -[CDEEventIntegrator integrableEventIDsFromEventIDs:informativeErrorCodes:]
18:16:50.603 Determining integrable events <<< -[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]
18:16:54.843 Checking store: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:54.845 Revision range: store id: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3
revision: 22
global count: 35 store id: 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3
revision: 22
global count: 35 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:54.872 Checking store: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:54.874 Revision range: store id: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA
revision: 16
global count: 35 store id: 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA
revision: 16
global count: 35 <<< __71-[CDERevisionManager integrableEventsFromEvents:informativeErrorCodes:]_block_invoke
18:16:54.903 Checking if ready for integration <<< -[CDEEventIntegrator integrationIsNeededForEventIDs:]
18:16:54.975 Transferring data files from event store to cloud <<< -[CDECloudManager exportDataFilesWithProgress:]
18:16:54.996 Transferring baseline from event store to cloud <<< -[CDECloudManager exportNewLocalBaselineWithProgress:]
18:16:55.058 Transferring events from event store to cloud <<< -[CDECloudManager exportNewLocalNonBaselineEventsWithProgress:]
18:16:55.163 Removing outdated files <<< -[CDECloudManager removeOutdatedRemoteFilesWithCompletion:]
18:16:55.249 Removing cloud files: <<< -[CDECloudManager removeOutdatedRemoteFilesWithCompletion:]
18:16:55.269 Removing items at paths: (
) <<< -[CDECloudKitFileSystem removeItemsAtPaths:completion:]
18:16:55.270 Retrieving records for paths: (
) <<< -[CDECloudKitFileSystem fetchRecordsAtPaths:completion:]
18:16:55.273 Fetched records for removal: (
) <<< __55-[CDECloudKitFileSystem removeItemsAtPaths:completion:]_block_invoke
18:16:55.274 Removing items with recordIDs: (
) <<< -[CDECloudKitFileSystem removeItemsWithRecordIDs:completion:]
18:16:55.298 Completing Merge <<< __58-[CDEPersistentStoreEnsemble mergeWithOptions:completion:]_block_invoke.694
...这是推送通知：
IPOD TOUCH
18:16:28.199 | iCloudSyncActivity | Thread 16 | did receive remote notification, userInfo = '{
aps = {
"content-available" = 1;
sound = "";
};
ck = {
ce = 2;
cid = "iCloud.com.example.app";
nid = "cc0f33fc-0488-4abb-b9aa-2bfd7c8db88b";
qry = {
dbs = 1;
fo = 1;
rid = "CDEFileSystemNode_/DiveMateMainStore/events/33_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_21.cdeevent";
sid = CDEFileAddedSubscription;
zid = "com.mentalfaculty.ensembles.zone.schema2";
zoid = "_7fd2f6a37e22282e02a1d8fb52ba2d8e";
};
};
}'
IPAD:
18:16:42.258 | iCloudSyncActivity | Thread 15 | did receive remote notification, userInfo = '{
aps = {
"content-available" = 1;
sound = "";
};
ck = {
ce = 2;
cid = "iCloud.com.example.app";
nid = "2bb1a2f0-5dbb-47b7-b6e1-1e6de9afdac9";
qry = {
dbs = 1;
fo = 1;
rid = "CDEFileSystemNode_/DiveMateMainStore/events/34_0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA_16.cdeevent";
sid = CDEFileAddedSubscription;
zid = "com.mentalfaculty.ensembles.zone.schema2";
zoid = "_7fd2f6a37e22282e02a1d8fb52ba2d8e";
};
};
}'
IPOD TOUCH
[260 ] 18:16:48.064 | iCloudSyncActivity | Thread 16 | did receive remote notification, userInfo = '{
aps = {
"content-available" = 1;
sound = "";
};
ck = {
ce = 2;
cid = "iCloud.com.example.app";
nid = "4ee5383d-9a94-4596-99f2-18ae7da6e0ca";
qry = {
dbs = 1;
fo = 1;
rid = "CDEFileSystemNode_/DiveMateMainStore/events/35_826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3_22.cdeevent";
sid = CDEFileAddedSubscription;
zid = "com.mentalfaculty.ensembles.zone.schema2";
zoid = "_7fd2f6a37e22282e02a1d8fb52ba2d8e";
};
};
}'
对我来说奇怪的是 Ensembles 跟踪指的是 2 家商店：
-一个 ID 为 826D4BD2-2ED2-4C3B-9A89-22E3D910EC55-476-000000FAF9F774C3
-ID 为 0B96EB62-03B1-414F-BBA5-3FCBDD2E9CD4-777-000002E26205C2DA
作为参考，我是这样设置 Ensembles 的：
_ensemble = [[CDEPersistentStoreEnsemble alloc] initWithEnsembleIdentifier:DM_ENSEMBLE_IDENTIFIER
persistentStoreURL:storeURL
managedObjectModelURL:[self _getManagedObjectModelURL]
cloudFileSystem:_iCloudFileSystem];
非常感谢任何方向正确的 help/pointers。
这是预期的行为，最后一次合并应该非常快。如果您发现太多，您可以轻松地选择限制由推送通知触发的合并。例如。如果在进行合并后一分钟内有推送进来，您可以选择忽略它。
每次更改 3 次合并不是空操作。他们正在进行重要的核算，以确保所有设备最终都具有相同的数据。
将合奏想象成 Git。在内部，基本上就是这样。现在，您在一台设备上进行更改，这会在该设备上触发新的提交 (S1_D1)。然后您进行合并以将数据推送到云端。
由于推送通知，第二个设备现在合并以获取该数据，并为此创建一个提交 (M1_D2)。这可能包括也可能不包括冲突解决方案，但它对并发系统很重要。它相当于 Git 合并两个分支，并且你必须有一个新的提交来代表历史中的那个。
合并（M1_D2）被推送到云端，现在原始设备看到一个新的提交，并且必须进行合并操作来导入它，尽管它不会产生任何新的提交本身。
所以一个存档应该需要在原设备上合并，在另一台设备上合并，在原设备上再合并，才能完整完成。这就是它在像 Git 这样的系统中以及在 Ensembles 中的工作方式。
请注意，虽然需要 3 次合并操作，但您可以完全控制它们何时发生。您可以根据需要延迟它们，或者像我提到的那样忽略某些推送。该系统足够聪明，可以在您最终合并时解决所有问题（就像 Git 一样）。