Realm Object Server file migration critical issue

Question

I've just upgraded ROS from 2.7.2 to 3.4.2. And now it becomes interesting. Our users can't open their synced realms because of error.

    [RLMSyncManager sharedManager].errorHandler = ^(NSError *error, RLMSyncSession *session) {
        LogError(@"RLMSyncManager error %@", error);
        if (error.code == RLMSyncErrorClientResetError)
        {
            [self backupBrokenData];
            [RLMSyncSession immediatelyHandleError:error.rlmSync_errorActionToken];
            return;
        }
    };

RLMSyncManager returns Error Domain=io.realm.sync Code=8 "(null)" UserInfo={underlying_error=Error Domain=io.realm.sync.auth Code=3 "(null)" UserInfo={statusCode=400}}

And that's fine seems something with our auth credentials on server. But server log tells me: HTTP response: be33008a-ae5e-4fa1-bab2-f11b40f11b55 {"type":"https://realm.io/docs/object-server/problems/invalid-realm-type","title":"The type of the Realm file was invalid.","status":400,"code":619}

Which is basically You're trying to open partial file with non partial configuration. But client and server uses same full realms. And no modifications happened.

Seems this error returned as false positive.

I've tried to grand administrator permission to that user. It could open his database. But as soon I remove admin permission it sees same error chain.

New users is not affected by this migration issue.

Is there anything I could do to let my users connect to their data?

Answer 1

It appears that issue was caused by bug inside realm-object-server, that was successfully fixed in version 3.4.3.

https://github.com/realm/realm-object-server/issues/374