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From: Apache Wiki <wikidiffs@apache.org>
To: Apache Wiki <wikidiffs@apache.org>
Date: Wed, 07 Oct 2015 19:01:51 -0000
Message-ID: <20151007190151.57132.7064@eos.apache.org>
Subject: 
 =?utf-8?q?=5BHadoop_Wiki=5D_Trivial_Update_of_=22Defining_Hadoop=22_by_St?=
 =?utf-8?q?eveLoughran?=
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The "Defining Hadoop" page has been changed by SteveLoughran:
https://wiki.apache.org/hadoop/Defining%20Hadoop?action=3Ddiff&rev1=3D16&re=
v2=3D17

Comment:
cull GPFS and IBRIX references

  =

   "Automotive Joe's Hadoop filesystem makes Hadoop installations faster an=
d more reliable!"
  =

- Hadoop does support multiple filesystems, and has a reasonably stable int=
erface for them. Example filesystems include Amazon S3, POSIX-compatible na=
tive filesystems, IBM's GPFS, HP IBRIX and others. For this reason, the onl=
y "Hadoop" filesystem that should use Hadoop in its brand name is "HDFS": H=
adoop Filesystem, but any other filesystem is welcome to declare their supp=
ort for Hadoop.
+ Hadoop does support multiple filesystems, and has a reasonably stable int=
erface for them. Example filesystems include Amazon S3, POSIX-compatible na=
tive filesystems, and others. For this reason, the only "Hadoop" filesystem=
 that should use Hadoop in its brand name is "HDFS": Hadoop Filesystem, but=
 any other filesystem is welcome to declare their support for Hadoop.
  =

  The Apache Hadoop project has attempted to define the behavior of HDFS an=
d so inform other filesytem implementors what that they need to do to integ=
rate with Hadoop, with tests for this in the Hadoop source tree and Apache =
Bigtop. Following the [[HCFS]] work will help you integrate with Hadoop =E2=
=80=94but it does not grant any rights to product naming, or the right to s=
tate categorically that your filesystem is totally compatible with the beha=
vior of HDFS expected by program.
 =20