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From Dmitriy Setrakyan <dsetrak...@apache.org>
Subject Re: IGFS
Date Mon, 25 May 2015 16:07:47 GMT
On Mon, May 25, 2015 at 7:18 AM, Vladimir Ozerov <vozerov@gridgain.com>
wrote:

> 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.
>

Is this factually correct? Why can't I configure backups, just like with
regular data grids?


>
> Vladimir.
>
> On Mon, May 25, 2015 at 1:44 PM, Konstantin Boudnik <cos@apache.org>
> 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!
> >
>

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