Koert, IGFS stores data in-memory. When using IGFS in pure in-memory mode, no failover exists and data can be lost in case one of data nodes leaves the grid. When secondary file system is used (e.g. HDFS), then Ignite is able to transparently re-read lost data chunks from the underlying file system.
Vladimir. On Mon, May 25, 2015 at 1:44 PM, Konstantin Boudnik <[email protected]> wrote: > Can anyone comment on this? Seems like an interesting topic, for sure. > > Thanks, > Cos > > On Sun, May 17, 2015 at 12:49AM, Koert Kuipers wrote: > > "One of the unique capabilities of Ignite is a file system interface to > its > > in-memory data called Ignite File System (IGFS). IGFS delivers similar > > functionality to Hadoop HDFS, but only in memory. In fact, IGFS is at the > > core of Ignite’s In-Memory Hadoop Accelerator." > > > > if IGFS delivers functionality similar to HDFD, then fault tolerance > would > > be one of the most important features. yet i cannot find any mention of > it. > > can someone explain? thanks! >
