首次安装后存储一些数据，但冷启动后读取不到了

[SMYdamao]

正常初始化后，存储了一些数据。但是在下次冷启动后这些记录读取不到了。
这是这个文件相关的一部分日志，我是按照顺序粘贴的。而且这是首次安装第一次启动的日志。

[MMKV.cpp:256, mmkvWithID][prepare to load atct (id e1f5415a1fd88ad1bd824444151eb72d) from rootPath /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv

[MemoryFile.cpp:102, open][open fd[18], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct

[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x10b13c000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct]

[MemoryFile.cpp:108, close][closing fd[18], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct

[MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct] is NSFileProtectionNone

[MMKV-Log][MemoryFile.cpp:102, open][open fd[18], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc

[MMKV-Log][MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x10b140000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc]

MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc] is NSFileProtectionNone

[MemoryFile.cpp:102, open][open fd[43], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct

[MemoryFile.cpp:108, close][closing fd[43], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct

[MMKV_IO.cpp:84, loadFromFile][loading [atct] with 0 actual size, file size 16384, InterProcess 1, meta info version:0

[MMKV_IO.cpp:133, loadFromFile][loaded [atct] with 0 key-values

[MMKV_IO.cpp:545, writeActualSize][[atct] increase sequence to 1, crc 2963410138, actualSize 4
[MMKV.cpp:1182, sync][MMKV::sync, SyncFlag = 1
[MMKV_IO.cpp:468, expandAndWriteBack][extending [atct] file size from 16384 to 32768, incoming size:99, future usage:7900
MemoryFile.cpp:102, open][open fd[64], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x1226c0000], oldPtr [0x10b13c000], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct]
[MemoryFile.cpp:108, close][closing fd[64], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MMKV_IO.cpp:545, writeActualSize][[atct] increase sequence to 2, crc 3993418075, actualSize 15547
[MMKV.cpp:1182, sync][MMKV::sync, SyncFlag = 1
[MMKV_IO.cpp:468, expandAndWriteBack][extending [atct] file size from 32768 to 65536, incoming size:99, future usage:15700
[MemoryFile.cpp:102, open][open fd[73], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x122788000], oldPtr [0x1226c0000], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct]
[MemoryFile.cpp:108, close][closing fd[73], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MMKV_IO.cpp:545, writeActualSize][[atct] increase sequence to 3, crc 4206865665, actualSize 31090
[MMKV.cpp:1182, sync][MMKV::sync, SyncFlag = 1
[MMKV_IO.cpp:468, expandAndWriteBack][extending [atct] file size from 65536 to 131072, incoming size:99, future usage:29300
[MemoryFile.cpp:102, open][open fd[46], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x122fbc000], oldPtr [0x122788000], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct]
[MemoryFile.cpp:108, close][closing fd[46], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MMKV_IO.cpp:545, writeActualSize][[atct] increase sequence to 4, crc 750573136, actualSize 58018

[MMKV_IO.cpp:468, expandAndWriteBack][extending [atct] file size from 131072 to 262144, incoming size:99, future usage:57000

[MemoryFile.cpp:102, open][open fd[54], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct

[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x127ffc000], oldPtr [0x122fbc000], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct]
MemoryFile.cpp:108, close][closing fd[54], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MMKV_IO.cpp:545, writeActualSize][[atct] increase sequence to 5, crc 2844171100, actualSize 112864
[MMKV.cpp:1182, sync][MMKV::sync, SyncFlag = 1

[MMKV_IO.cpp:348, checkLoadData][[atct] oldSeq 5, newSeq 7
[MMKV.cpp:314, clearMemoryCache][clearMemoryCache [atct]
[MMKV_IO.cpp:244, loadMetaInfoAndCheck][meta file [atct] has flag [0]
[MMKV-Log][MemoryFile.cpp:102, open][open fd[48], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x10a378000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct]
[MemoryFile.cpp:108, close][closing fd[48], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct] is NSFileProtectionCompleteUntilFirstUserAuthentication
[MMKV_IO.cpp:84, loadFromFile][loading [atct] with 103 actual size, file size 262144, InterProcess 1, meta info version:4
[MMKV_IO.cpp:89, loadFromFile][loading [atct] with crc 2642442459 sequence 7 version 4
[MMKV_IO.cpp:133, loadFromFile][loaded [atct] with 1 key-values
[MMKV.cpp:1182, sync][MMKV::sync, SyncFlag = 1

[SMYdamao]

• MMKV (2.2.4):
  • MMKVCore (~> 2.2.4)
  • MMKVCore (2.2.4)

[lingol]

According to your logs, there's nothing wrong with the file [atct]. You should at least provide logs before you exiting the App, and separate logs from the cool start of your App.

[SMYdamao]

第一次冷启动

[MMKV.cpp:256, mmkvWithID][prepare to load atct (id e1f5415a1fd88ad1bd824444151eb72d) from rootPath /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv
[MemoryFile.cpp:102, open][open fd[30], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x10aaa8000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct]
[MemoryFile.cpp:108, close][closing fd[30], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct] is NSFileProtectionCompleteUntilFirstUserAuthentication
[MemoryFile.cpp:102, open][open fd[30], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc
[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x1066f8000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc]
[MMKV-Log][MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc] is NSFileProtectionCompleteUntilFirstUserAuthentication


[MemoryFile.cpp:102, open][open fd[36], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile.cpp:108, close][closing fd[36], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MMKV_IO.cpp:244, loadMetaInfoAndCheck][meta file [atct] has flag [0]
[MMKV_IO.cpp:84, loadFromFile][loading [atct] with 15448 actual size, file size 262144, InterProcess 1, meta info version:4
[MMKV_IO.cpp:89, loadFromFile][loading [atct] with crc 1492973062 sequence 7 version 4
[MMKV_IO.cpp:133, loadFromFile][loaded [atct] with 146 key-values


][MMKV.cpp:1182, sync][MMKV::sync, SyncFlag = 1
[MMKV.cpp:314, clearMemoryCache][clearMemoryCache [atct]
[MemoryFile.cpp:108, close][closing fd[30], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc
[MMKV.cpp:149, ~MMKV][destruct [atct]

第二次冷启动

[MMKV.cpp:256, mmkvWithID][prepare to load atct (id e1f5415a1fd88ad1bd824444151eb72d) from rootPath /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv
[MemoryFile.cpp:102, open][open fd[15], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x1134cc000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct]
[MemoryFile.cpp:108, close][closing fd[15], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct] is NSFileProtectionCompleteUntilFirstUserAuthentication
[MemoryFile.cpp:102, open][open fd[15], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc
[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x10e3f8000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc]
[MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc] is NSFileProtectionCompleteUntilFirstUserAuthentication

[MemoryFile.cpp:102, open][open fd[20], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile.cpp:108, close][closing fd[20], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MMKV_IO.cpp:244, loadMetaInfoAndCheck][meta file [atct] has flag [0]
[MMKV_IO.cpp:84, loadFromFile][loading [atct] with 26437 actual size, file size 262144, InterProcess 1, meta info version:4
[MMKV_IO.cpp:89, loadFromFile][loading [atct] with crc 2952854092 sequence 7 version 4
][MMKV_IO.cpp:133, loadFromFile][loaded [atct] with 252 key-values

[SMYdamao]

对了，这个文件是多进程访问的，下面是首次安装时，扩展进程的日志：

[MMKV.cpp:256, mmkvWithID][prepare to load atct (id e1f5415a1fd88ad1bd824444151eb72d) from rootPath /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv
[MemoryFile.cpp:102, open][open fd[4], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x10239c000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct]
[MemoryFile.cpp:108, close][closing fd[4], /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct
[MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct] is NSFileProtectionCompleteUntilFirstUserAuthentication
[MemoryFile.cpp:102, open][open fd[4], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc
[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x1023a0000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc]
[MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/E7FADDFA-D465-4DA7-86A5-D70AC55B09CC/2b2f495beccdd8a427516f77f91713aa38212d8e9e98381a0c936f08e6dad38f/mmkv/atct.crc] is NSFileProtectionCompleteUntilFirstUserAuthentication

[MMKV_IO.cpp:244, loadMetaInfoAndCheck][meta file [atct] has flag [0]
[MMKV_IO.cpp:311, checkDataValid][check [atct] error: 133555 size in total, file size is 16384
[MMKV_IO.cpp:288, operator()][check [atct] error: lastActualSize 112864, file size is 16384
[MMKV_IO.cpp:323, checkDataValid][recover strategic for [atct] is 0
[MMKV_IO.cpp:84, loadFromFile][loading [atct] with 133555 actual size, file size 16384, InterProcess 1, meta info version:4
[MMKV_IO.cpp:545, writeActualSize][[atct] increase sequence to 6, crc 0, actualSize 0
[MMKV.cpp:1182, sync][MMKV::sync, SyncFlag = 1
[MMKV_IO.cpp:133, loadFromFile][loaded [atct] with 0 key-values
[MMKV_IO.cpp:545, writeActualSize][[atct] increase sequence to 7, crc 1215200962, actualSize 4
[MMKV.cpp:1182, sync][MMKV::sync, SyncFlag = 1

[SMYdamao]

我有个必现场景：首次启动会存入大量数据到atct文件中，大约几千个至上万个。kill掉app之后，扩展进程被激活，也有相关数据写入atct中。这时候主进程启动后之前存入到atct中的数据都读取不到了

[SMYdamao]

扩展进程的日志如下：
初始化：

[MMKV.cpp:256, mmkvWithID][prepare to load atct (id 5b00a069369c8bba6c19c2dfde59dcc1) from rootPath /private/var/mobile/Containers/Shared/AppGroup/43FA851E-DF5A-4492-A293-82E6C709302E/3791d217bff48bc3e8f73fc4151eb9abac01514e3e86cfead1b8c4c82a7b9496/mmkv
[MemoryFile.cpp:102, open][open fd[4], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/43FA851E-DF5A-4492-A293-82E6C709302E/3791d217bff48bc3e8f73fc4151eb9abac01514e3e86cfead1b8c4c82a7b9496/mmkv/atct
MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x104cb0000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/43FA851E-DF5A-4492-A293-82E6C709302E/3791d217bff48bc3e8f73fc4151eb9abac01514e3e86cfead1b8c4c82a7b9496/mmkv/atct]
[MemoryFile.cpp:108, close][closing fd[4], /private/var/mobile/Containers/Shared/AppGroup/43FA851E-DF5A-4492-A293-82E6C709302E/3791d217bff48bc3e8f73fc4151eb9abac01514e3e86cfead1b8c4c82a7b9496/mmkv/atct
[MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/43FA851E-DF5A-4492-A293-82E6C709302E/3791d217bff48bc3e8f73fc4151eb9abac01514e3e86cfead1b8c4c82a7b9496/mmkv/atct] is NSFileProtectionCompleteUntilFirstUserAuthentication
[MemoryFile.cpp:102, open][open fd[4], flag 0x7, /private/var/mobile/Containers/Shared/AppGroup/43FA851E-DF5A-4492-A293-82E6C709302E/3791d217bff48bc3e8f73fc4151eb9abac01514e3e86cfead1b8c4c82a7b9496/mmkv/atct.crc
[MemoryFile.cpp:249, mmapOrCleanup][mmap to address [0x104cb4000], oldPtr [0x0], [/private/var/mobile/Containers/Shared/AppGroup/43FA851E-DF5A-4492-A293-82E6C709302E/3791d217bff48bc3e8f73fc4151eb9abac01514e3e86cfead1b8c4c82a7b9496/mmkv/atct.crc]
[I][2025-11-03 +4.0 17:09:28.902][0, 4534639296][MMKV-Log][MemoryFile_OSX.cpp:35, tryResetFileProtection][protection on [/private/var/mobile/Containers/Shared/AppGroup/43FA851E-DF5A-4492-A293-82E6C709302E/3791d217bff48bc3e8f73fc4151eb9abac01514e3e86cfead1b8c4c82a7b9496/mmkv/atct.crc] is NSFileProtectionCompleteUntilFirstUserAuthentication

存储新的记录的时候有个报错：

[MemoryFile.cpp:108, close][closing fd[12], /private/var/mobile/Containers/Shared/AppGroup/43FA851E-DF5A-4492-A293-82E6C709302E/3791d217bff48bc3e8f73fc4151eb9abac01514e3e86cfead1b8c4c82a7b9496/mmkv/atct
[MMKV_IO.cpp:244, loadMetaInfoAndCheck][meta file [atct] has flag [0]
[MMKV_IO.cpp:311, checkDataValid][check [atct] error: 406300 size in total, file size is 16384
[MMKV_IO.cpp:288, operator()][check [atct] error: lastActualSize 203350, file size is 16384
[MMKV_IO.cpp:323, checkDataValid][recover strategic for [atct] is 0
[MMKV_IO.cpp:84, loadFromFile][loading [atct] with 406300 actual size, file size 16384, InterProcess 1, meta info version:4
[MMKV_IO.cpp:545, writeActualSize][[atct] increase sequence to 10, crc 0, actualSize 0
[MMKV.cpp:1182, sync][MMKV::sync, SyncFlag = 1
[MMKV_IO.cpp:133, loadFromFile][loaded [atct] with 0 key-values
[MMKV_IO.cpp:545, writeActualSize][[atct] increase sequence to 11, crc 3517797496, actualSize 4
[MMKV.cpp:1182, sync][MMKV::sync, SyncFlag = 1

[lingol]

Now that you can reproduce this problem, would you provide a demo to show it?

[SMYdamao]

您能告诉我什么原因引起的清空数据吗？貌似只要使用多进程访问就会有问题，单进程模式的没有出现这个问题。demo现在不太好出，因为要有apns推送流程。我可以给您我的mmkv使用的代码

[lingol]

According to your logs, somehow the size of the file has been truncated to 16K from a larger size.

[MMKV_IO.cpp:84, loadFromFile][loading [atct] with 26437 actual size, file size 262144, InterProcess 1, meta info version:4
...
[MMKV_IO.cpp:311, checkDataValid][check [atct] error: 406300 size in total, file size is 16384