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Subject: svn commit: r951746 - in /websites/staging/accumulo/trunk/content: ./
release_notes/1.7.0.html
Date: Mon, 18 May 2015 15:35:25 -0000
To: accumulo-commits@incubator.apache.org
From: buildbot@apache.org
X-Mailer: svnmailer-1.0.9
Message-Id: <20150518153525.75986AC0041@hades.apache.org>
Author: buildbot
Date: Mon May 18 15:35:25 2015
New Revision: 951746
Log:
Staging update by buildbot for accumulo
Modified:
websites/staging/accumulo/trunk/content/ (props changed)
websites/staging/accumulo/trunk/content/release_notes/1.7.0.html
Propchange: websites/staging/accumulo/trunk/content/
------------------------------------------------------------------------------
--- cms:source-revision (original)
+++ cms:source-revision Mon May 18 15:35:25 2015
@@ -1 +1 @@
-1679933
+1680045
Modified: websites/staging/accumulo/trunk/content/release_notes/1.7.0.html
==============================================================================
--- websites/staging/accumulo/trunk/content/release_notes/1.7.0.html (original)
+++ websites/staging/accumulo/trunk/content/release_notes/1.7.0.html Mon May 18 15:35:25 2015
@@ -213,6 +213,7 @@ Latest 1.5 release: 1.5.2Apache Accumulo 1.7.0 is a release that needs to be described
DRAFT DRAFT DRAFT DRAFT DRAFT DRAFT
+Notable Improvements
Client Authentication with Kerberos
Kerberos is far and away the de-facto means provide strong authentication across Hadoop
and other related components. Kerberos uses requires a centralized key distribution center
@@ -234,6 +235,21 @@ and authorization module.
authentication can be found in the Kerberos chapter of the Accumulo
User Manual.
Data-Center Replication
+In previous releases, Accumulo only operated withing the constraints of a single installation.
+Because single instances of Accumulo often consist of many nodes and Accumulo's design scales
+efficiently across many nodes, it is typical that one Accumulo is run per physical installation
+or data-center. ACCUMULO-378 introduces support in Accumulo to automatically
+copy data from one Accumulo instance to another.
+This data-center replication feature is directly applicable for users wishing to implement
+a disaster recovery strategy. Data can be automatically sent from a primary instance to one
+or more other Accumulo instances. Conversely to normal Accumulo operation in which ingest and
+query are strongly consistent, replication is a lazy, eventually consistent operation. This
+is desirable for replication as it prevent additional latency for ingest operations on the
+primary instance. Additionally, outages between the primary instance and replicas can sustain
+prolonged outages without any administrative overhead.
+The Accumulo User Manual contains a new chapter on replication which covers
+in better detail the design and implementation of the feature, how users can configure replication
+and special cases to consider when choosing to integrate the feature into a user application.
User Initiated Compaction Strategies
Per table compaction strategies were added in 1.6.0. In 1.7.0 the ability to
specify a compaction strategy for a user initiated compaction was added in