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Posted to common-commits@hadoop.apache.org by zj...@apache.org on 2015/03/13 00:04:44 UTC
[25/49] hadoop git commit: HDFS-6806. HDFS Rolling upgrade document
should mention the versions available. Contributed by J.Andreina.
HDFS-6806. HDFS Rolling upgrade document should mention the versions available. Contributed by J.Andreina.
Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/82db3341
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/82db3341
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/82db3341
Branch: refs/heads/YARN-2928
Commit: 82db3341bfb344f10c4c6cc8eea0d8c19e05956a
Parents: d6e05c5
Author: Akira Ajisaka <aa...@apache.org>
Authored: Tue Mar 10 11:22:11 2015 +0900
Committer: Akira Ajisaka <aa...@apache.org>
Committed: Tue Mar 10 11:22:11 2015 +0900
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hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt | 3 +++
.../hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml | 4 +++-
2 files changed, 6 insertions(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/hadoop/blob/82db3341/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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diff --git a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
index 094abfe..a2e552a 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
+++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
@@ -737,6 +737,9 @@ Release 2.7.0 - UNRELEASED
HDFS-7898. Change TestAppendSnapshotTruncate to fail-fast.
(Tsz Wo Nicholas Sze via jing9)
+ HDFS-6806. HDFS Rolling upgrade document should mention the versions
+ available. (J.Andreina via aajisaka)
+
OPTIMIZATIONS
HDFS-7454. Reduce memory footprint for AclEntries in NameNode.
http://git-wip-us.apache.org/repos/asf/hadoop/blob/82db3341/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml
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diff --git a/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml b/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml
index f2f3ebe..28649a8 100644
--- a/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml
+++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml
@@ -47,7 +47,9 @@
These two capabilities make it feasible to upgrade HDFS without incurring HDFS downtime.
In order to upgrade a HDFS cluster without downtime, the cluster must be setup with HA.
</p>
-
+ <p>
+ Note that rolling upgrade is supported only from Hadoop-2.4.0 onwards.
+ </p>
<subsection name="Upgrade without Downtime" id="UpgradeWithoutDowntime">
<p>
In a HA cluster, there are two or more <em>NameNodes (NNs)</em>, many <em>DataNodes (DNs)</em>,