My realm was growing up so much so I have an exception for memory allocation size. My realm size is about 3.2 GB so I put this realm's configuration to resolve this:
let config = Realm.Configuration(
// Set the new schema version. This must be greater than the previously used
// version (if you've never set a schema version before, the version is 0).
schemaVersion: 11,
// Set the block which will be called automatically when opening a Realm with
// a schema version lower than the one set above
migrationBlock: { migration, oldSchemaVersion in
},shouldCompactOnLaunch: {totalBytes, usedBytes -> Bool in
guard totalBytes > 10 * 1024 * 1024 * 1024 else { return false }
guard Double(usedBytes) / Double(totalBytes) < 0.5 else { return false }
print("Should compact Realm database: \(usedBytes) / \(totalBytes)")
return true
})
Realm.Configuration.defaultConfiguration = config
However, the issue still occurs. What am I doing wrong?
Regards
My guess goes for that you are missing the autoreleasepool in your dispatch async methods.
The documentation shows that you should do that though.
// Query and update from any thread
DispatchQueue(label: "background").async {
autoreleasepool { // <-- !!!
let realm = try! Realm()
let theDog = realm.objects(Dog.self).filter("age == 1").first
try! realm.write {
theDog!.age = 3
}
}
}
Another possibility of course is that you're inserting about 100000 objects many times without cutting them into batches of ~1000.
Another possibility is inserting every single item in its own transaction.
So like, super-large transactions can allocate a lot of space, but inserting each item one by one takes up lots of space too, hence the middle-ground.