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Databases & messaging · #realm
Problem Context After moving the Realm Object Server to a new IP address, clients report a persistent connection timeout when attempting to open a synced Realm. The SDK continues to use the previous DNS entry, resulting in a failed WebSocket handshake. Constraints & Uncertainty The Realm SDK relies on the platform’s DNS resolver, which may cache entries
In Realm 10.12, the schemaVersion property and migration block enable forward‑only schema changes. Once a migration has been applied, the Realm file header records the highest version written. The documented behavior states that attempting to open the file with a lower schemaVersion triggers an error or requires the file to be deleted before reopening. Devel
Realm Date Persistence and UI Timezone Display The goal is to decide whether Realm should persist an explicit timezone identifier together with the UTC instant so that applications can reconstruct the original local time without performing manual conversion on read. Constraints include maintaining backward compatibility with existing Realms, keeping storage
When a write operation fails inside Realm.executeTransaction(), the transaction is rolled back and the method returns false, allowing the caller to retry the same intent. Because Realm uses MVCC, readers see a consistent snapshot and committed changes are invisible until the transaction succeeds. The goal is to confirm that a retry does not create duplicate
Integrating Realm Java with an asynchronous threading model requires managing the boundary between thread-confined live objects and thread-safe frozen objects. While frozen objects allow read access across different threads without triggering an IllegalStateException , they represent a snapshot of the data at a specific point in time. The challenge arises wh
In Realm Java/Kotlin, the RealmConfiguration relies on the schemaVersion to determine if the on-disk database structure matches the current object models. When the version in the Realm file exceeds the version defined in the configuration, the system prevents access to avoid data corruption. A specific challenge arises in environments where different applica
kotlin