Re: [Kosmosfs-users] KosmosFS vs HDFS
Status: Alpha
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From: Sriram R. <sri...@gm...> - 2008-02-25 21:48:25
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While both are functionally equivalent, there are some differences between KFS and HDFS (HDFS as of today): - in HDFS, files are visible only on close; in KFS this isn't the case -- impact: for DB commit logs, HDFS makes it hard. you write a commit log record and then close the file; this has the downside of creating lots of small files in the system. - HDFS doesn't have a sync() call; KFS does - Performance differences: I am currently trying do some benchmarking; will get back to you in a week or so. Aside...just as HDFS works with Hadoop for map-reduce, so too does KFS; we have integrated KFS as a layer in the Hadoop filesystem interfaces. Sriram On Mon, Feb 25, 2008 at 1:43 PM, David Carter <da...@ca...> wrote: > Can someone provide some guidelines on when someone would choose to > use KosmosFS vs Hadoop's HDFS? > > Are there significant functional differences that would cause someone > to choose one over the other for a specific application? > > Are there significant performance differences? My gut reaction is that > C++ is better suited than Java for developing a distributed file > system, but I'm wondering if there are any performance measurements to > back this up, preferably benchmarks run on the same cluster? > > -- > David Carter > da...@ca... > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Kosmosfs-users mailing list > Kos...@li... > https://lists.sourceforge.net/lists/listinfo/kosmosfs-users > |