On initial start, Unison sync needs to build a catalog of the files in the synced folder before sync begins. Extra dependencies we need on OSX, in need to install unison and unox natively - brew dependencies.The daemon on OSX needs extra care for sleep/hibernate.Can be unreliable with huge file counts (> 30.000) and bad hardware (events gets stuck).Still very effective and works for huge projects.Offers 2 way sync (please see unison-dualside why this is misleading here).It generally is build to handle 2 way sync, so syncs back changes from the container to the host. It seems to work very well with huge codebases too. This strategy has the biggest drive to become the new default player out of the current technologies. See native_osx does not work with docker-machine vbox / fusion It works under Docker for Mac only - missing file system events under vbox/fusion.Initial start can take longer as on unison, since the first sync is more expensive.It will be much easier to support Windows this way.A lot easier installation since we just need gem install docker-sync and that on runs under system ruby.Makes sleep/hibernate/reboot much more robust No daemon to run, control, restart and sync on the OSX host.Uses far less CPU to sync files from the host to the sync container - will handle a lot more files.Far more reliable due to a low-level implementation of the sync using OSXFS only.It uses a lot of CPU for watching files, it can lose some events and miss a sync - but also, it adds extra dependencies on the OSX hosts.Īll that is eliminated by native_osx - we use Unison in the Linux container, where it performs great due to inotify-event based watchers. The first big issue with Unison is, how bad it performs under OSX due to the bad FS-Events of OSX, implemented in macfsevents and alikes. ![]() What is different to plain Unison you might ask. Still, we using OSXFS, a about up to 1 second delayed, to synchronize changes both ways. You ask yourself, why? Its fairly simple.īy having this extra layer of unison on linux, we detach the actual write/read performance of your application from the actual OSXFS performance - running at native speed. app_sync is exposed as a named volume mount and consumed in the app. ![]() In that sync container we sync from /host_sync to /app_sync using Unison. We use OSX to sync the file-system into a sync-container to /host_sync. Native-OSX is a combination of two concepts, OSXFS only and Unison together. For advanced understanding, please read native_osx in depth.
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