replicator - Triggers/handles synchronization.aggregator - I believe this is used to provided notifications to the replicator process when there’s changes to synchronize.doveadm - Front facing TCP listening service providing access to aggregator and replicator I believe.It is worth noting that this is a bit of a pain to set up, so be prepared! This guide was also written based on the Gentoo installation configurations.
dsync will also sync your sieve configurations if you have sieve set up! Because it uses the log files, it can also run master-master and whilst the official documentation recommends a user always goes to the same host, it also states that the worse case scenario is a user has to redownload mails again. Open source bindings, Apache 2.I’ve previously written about dsync as a tool provided by dovecot to migrate mailbox formats but it’s also a tool that works over SSH and TCP for synchronizing mailboxes across two instances of dovecot.ĭsync is primarily worth using because it uses dovecot’s log files to replicate as mail is received so filesystem corruption isn’t replicated and it also avoids having to script and control synchronization between the two instances. on-premise hosted service upon request onlyĪndroid, Linux, Windows, MacOS, any POSIX-system
#Dsync swift license
NoSQL document store RealmDB: Embedded NoSQL DBĭB changed its license from open source (GNU) to MongoDB Inc.’s Server Side Google (Firebase was acquired by Google in 2014)įirebase Realtime Database Edge: Caching only (Firestore) Objective-C, Java (Android), Java (Non-Android), Kotlin, C#, JavaScript, C Needs Couchbase Server (originally Membase) (CouchDB is Apache 2.0 and they integrate with several open source libraries)Ĭouchbase (a merger of Couch One and Membase) Replication to and from on-device data (CouchDB cloud service) On July 14, 2020, a lawsuit was filed accusing Google of (…) logging what the users are looking at in many types of apps, despite the user following Google’s own instructions to turn off the web and app activity collected by the company.” ()ĭata Sync Solution comparison matrix – Firebase and its alternatives Solution name – User privacy concerns: “Firebase has been claimed to be used by Google to track users without their knowledge. – Doesn’t work in the countries that don’t allow Google – Cost insecurities, hard – impossible to predict – Easily disorganized, hard to navigate and search – The Firebase Real-time Database has its own drawbacks – Less flexibility: You cannot optimize the backend to match your app’s needs – Google: vendor lock-in (no migration tools prevents you from making your app portable), you cannot access your data as it is hosted on the Firebase server – Less iOS support (stronger focus on Android) – The Firebase Real-time Database has its own advantages: – Google: large team that supports and maintains it very low risk of the company failing however, Google has a reputation of discontinuing products / services, so there is no guarantee
Less iOS support (stronger focus on Android)ĭoesn’t work in countries that don’t allow Google
#Dsync swift Offline
As our focus is on offline / edge Data Sync and local storage, in the following we add all edge / offline Data Sync solutions we know of, but spare you the wealth of cloud options only adding the established ones. appwrite and supabase) forcing the user into a centralized cloud setup, there is almost nothing that supports offline Data Sync and / or persistent local data storage. While there are more and more cloud-based Firebase alternatives springing up nearly daily (e.g. But what options do Mobile and IoT developers working on the edge have for out-of-the-box Data Sync solutions? Very few. Therefore, we’ve recently taken a comprehensive look at mobile database and edge database offerings on the market. With a huge shift happening in computing from the cloud to the edge, offline-first approaches and Edge Computing are getting more and more important. However, Firebase is purely cloud based and offers no support for local data storage ( as in “data persistence above caching”) and therefore offline usage. One of the most well-known Data Sync solutions is Firebase.
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