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 <aajis...@apache.org> Authored: Tue Mar 10 11:22:11 2015 +0900 Committer: Akira Ajisaka <aajis...@apache.org> Committed: Tue Mar 10 11:22:11 2015 +0900 ---------------------------------------------------------------------- hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt | 3 +++ .../hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml | 4 +++- 2 files changed, 6 insertions(+), 1 deletion(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hadoop/blob/82db3341/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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>,
