Hello! After reviewing IGFS code, I think that you can do the following:
You should save all file paths that are being migrated, and then call await(collectionWithAllFilePaths) on IgfsImpl. If it's a huge number of files, I imagine you can do this in batches. It will do the same synchronous wait that DUAL_SYNC would do, just from a different entry point. After await() returns you are safe to close IgfsImpl and shutdown your cluster. Note that I would like to have the same behaviour for IgfsImpl.close(cancel: false), but it's NOT there yet. I have filed https://issues.apache.org/jira/browse/IGNITE-7356 - do not hesitate to comment. Regards, -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
