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Type:
Bug
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Resolution: Done
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Priority:
Critical - P2
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None
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Affects Version/s: None
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Component/s: None
How frequently does the bug occur?
Sometimes
Description
Cloned from here https://www.mongodb.com/community/forums/t/e-realm-sync-connection-1-session-1-failed-to-parse-or-apply-received-changeset/107809/4?u=anton_p
Both iOS and Android apps are unable to open Realm for some users because of the error received from the Realm Sync.
Stacktrace & log output
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Connection[1]: Session[1]: Failed to parse, or apply received changeset: ArrayInsert: Invalid prior_size (list size = 3, prior_size = 0) (instruction target: SettingsV2RealmModel[ObjectId{6159ef49872d4b24322a1daa}].ts[0], version: 47, last_integrated_remote_version: 1, origin_file_ident: 211, timestamp: 220174678003)
Exception backtrace:
0 Divtracker 0x000000010b690676 _ZN5realm4sync17BadChangesetErrorCI1NS_4util22ExceptionWithBacktraceISt13runtime_errorEEIJNSt3__112basic_stringIcNS5_11char_traitsIcEENS5_9allocatorIcEEEEEEEDpOT_ + 38
1 Divtracker 0x000000010b68ac92 _ZN5realm4sync12_GLOBAL__N_125throw_bad_transaction_logENSt3__112basic_stringIcNS2_11char_traitsIcEENS2_9allocatorIcEEEE + 34
2 Divtracker 0x000000010b68aa9f _ZNK5realm4sync18InstructionApplier19bad_transaction_logERKNSt3__112basic_stringIcNS2_11char_traitsIcEENS2_9allocatorIcEEEE + 1135
3 Divtracker 0x000000010b698999 _ZNK5realm4sync18InstructionApplier19bad_transaction_logIJmRKjEEEvPKcDpOT_ + 73
4 Divtracker 0x000000010b698477 _ZN5realm4sync18InstructionApplier20resolve_list_elementINS_4util8overloadIJZNS1_clERKNS0_5instr11ArrayInsertEE4$_20ZNS1_clES8_E4$_21ZNS1_clES8_E4$_22ZNS1_clES8_E4$_23ZNS1_clES8_E4$_24ZNS1_clES8_E4$_25EEEEEvRNS_7LstBaseEmNSt3__111__wrap_iterIPKN5mpark7variantIJNS0_12InternStringEjEEEEESQ_PKcOT_ + 2871
5 Divtracker 0x000000010b697439 _ZN5realm4sync18InstructionApplier13resolve_fieldINS_4util8overloadIJZNS1_clERKNS0_5instr11ArrayInsertEE4$_20ZNS1_clES8_E4$_21ZNS1_clES8_E4$_22ZNS1_clES8_E4$_23ZNS1_clES8_E4$_24ZNS1_clES8_E4$_25EEEEEvRNS_3ObjENS0_12InternStringENSt3__111__wrap_iterIPKN5mpark7variantIJSI_jEEEEESQ_PKcOT_ + 1177
6 Divtracker 0x000000010b68ea2c _ZN5realm4sync18InstructionApplierclERKNS0_5instr11ArrayInsertE + 636
7 Divtracker 0x000000010b6b16f4 _ZN5realm4sync18InstructionApplier5applyIS1_EEvRT_RKNS0_9ChangesetEPNS_4util6LoggerE + 100
8 Divtracker 0x000000010b6ae662 _ZN5realm5_impl17ClientHistoryImpl27integrate_server_changesetsERKNS_4sync12SyncProgressEPKyPKNS2_11Transformer15RemoteChangesetEmRNS2_11VersionInfoERNS2_21ClientReplicationBase16IntegrationErrorERNS_4util6LoggerEPNSE_20SyncTransactReporterE + 946
9 Divtracker 0x000000010b6bff0d _ZN5realm5_impl14ClientImplBase7Session29initiate_integrate_changesetsEyRKNSt3__16vectorINS_4sync11Transformer15RemoteChangesetENS3_9allocatorIS7_EEEE + 173
10 Divtracker 0x000000010b68572a _ZN12_GLOBAL__N_111SessionImpl29initiate_integrate_changesetsEyRKNSt3__16vectorIN5realm4sync11Transformer15RemoteChangesetENS1_9allocatorIS6_EEEE + 42
11 Divtracker 0x000000010b6be9bd _ZN5realm5_impl14ClientImplBase7Session24receive_download_messageERKNS_4sync12SyncProgressEyRKNSt3__16vectorINS3_11Transformer15RemoteChangesetENS7_9allocatorISA_EEEE + 589
12 Divtracker 0x000000010b6bc15d _ZN5realm5_impl14ClientProtocol22parse_message_receivedINS0_14ClientImplBase10ConnectionEEEvRT_PKcm + 5485
13 Divtracker 0x000000010b6b6bd4 _ZN5realm5_impl14ClientImplBase10Connection33websocket_binary_message_receivedEPKcm + 52
14 Divtracker 0x000000010b64ce25 _ZN12_GLOBAL__N_19WebSocket17frame_reader_loopEv + 1509
15 Divtracker 0x000000010b6c39a0 _ZN5realm4util7network7Service9AsyncOper22do_recycle_and_executeINSt3__18functionIFvNS5_10error_codeEmEEEJRS7_RmEEEvbRT_DpOT0_ + 224
16 Divtracker 0x000000010b6c3464 _ZN5realm4util7network7Service14BasicStreamOpsINS1_3ssl6StreamEE16BufferedReadOperINSt3__18functionIFvNS8_10error_codeEmEEEE19recycle_and_executeEv + 196
17 Divtracker 0x000000010b6f4784 _ZN5realm4util7network7Service4Impl3runEv + 484
18 Divtracker 0x000000010b67cb5d _ZN5realm4sync6Client3runEv + 29
19 Divtracker 0x000000010b822e8d _ZNSt3__1L14__thread_proxyINS_5tupleIJNS_10unique_ptrINS_15__thread_structENS_14default_deleteIS3_EEEEZN5realm5_impl10SyncClientC1ENS2_INS7_4util6LoggerENS4_ISB_EEEERKNS7_16SyncClientConfigENS_8weak_ptrIKNS7_11SyncManagerEEEEUlvE0_EEEEEPvSN_ + 45
20 libsystem_pthread.dylib 0x00007fff6bfee8fc _pthread_start + 224
21 libsystem_pthread.dylib 0x00007fff6bfea443 thread_start + 15
I also have a full log from the device but can’t list it here as it may contain some personal info like tokens/URLs/IDs/etc. Please reach me if that may help in the investigation.
Can you reproduce the bug?
Yes, always
Reproduction Steps
I do not know the exact steps to reproduce. We have the SettingsV2RealmModel model that contains a list of embedded objects. After we deployed this new model and performed data migration from the old V1 format we received several reports from our users that they are unable to start the app. Erasing databases or the whole Realm folder on the client-side didn’t work. I tried to install the fresh app and log in as a user with the problem and I faced the same issue.
We had to terminate sync and start it again. After that, I was able to log in as a previously broken user. Sync termination is a terrible user experience and we don’t have a clean way to perform that on our mobile clients so we can’t do that all the time. Please-please-please fix the issue on your side.
SettingsV2RealmModel scheme:
{
"properties": {
"_id": {
"bsonType": "objectId"
},
"_p": {
"bsonType": "string"
},
"ce": {
"bsonType": "bool"
},
"g": {
"bsonType": "int"
},
"t": {
"bsonType": "double"
},
"te": {
"bsonType": "bool"
},
"ts": {
"bsonType": "array",
"items": {
"bsonType": "object",
"properties": {
"s": {
"bsonType": "objectId"
},
"t": {
"bsonType": "double"
}
},
"required": [
"s",
"t"
],
"title": "TaxesV2RealmModel"
}
}
},
"required": [
"_id",
"_p"
],
"title": "SettingsV2RealmModel"
}
Version
10.14.0
What SDK flavour are you using?
MongoDB Realm (i.e. Sync, auth, functions)
Are you using encryption?
No, not using encryption
Platform OS and version(s)
iOS 15.0
Build environment
ProductName: macOS ProductVersion: 11.6 BuildVersion: 20G165 /Applications/Xcode.app/Contents/Developer Xcode 13.1 Build version 13A1030d /usr/local/bin/pod 1.11.2 Realm (10.14.0) RealmSwift (10.14.0) RealmSwift (= 10.14.0) /bin/bash GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin20) /usr/local/bin/carthage 0.38.0 (not in use here) /usr/bin/git git version 2.30.1 (Apple Git-130)