hadoop git commit: HDFS.7849. Update documentation for enabling a new feature in rolling upgrade ( Contributed by J.Andreina )
Repository: hadoop Updated Branches: refs/heads/branch-2 ceb39c1cc - 786ba9784 HDFS.7849. Update documentation for enabling a new feature in rolling upgrade ( Contributed by J.Andreina ) (cherry picked from commit 5be5129d93481e9caae6a05b2361c463211a6d55) Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/786ba978 Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/786ba978 Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/786ba978 Branch: refs/heads/branch-2 Commit: 786ba9784dac768c6270933c55b47e66fec0c28f Parents: ceb39c1 Author: Vinayakumar B vinayakum...@apache.org Authored: Thu Mar 19 19:05:42 2015 +0530 Committer: Vinayakumar B vinayakum...@apache.org Committed: Thu Mar 19 19:06:47 2015 +0530 -- hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt | 3 +++ .../hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml| 9 + 2 files changed, 12 insertions(+) -- http://git-wip-us.apache.org/repos/asf/hadoop/blob/786ba978/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 9be5da8..2e5e8d1 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt +++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt @@ -459,6 +459,9 @@ Release 2.7.0 - UNRELEASED HDFS-7054. Make DFSOutputStream tracing more fine-grained (cmccabe) +HDFS.7849. Update documentation for enabling a new feature in rolling +upgrade ( J.Andreina via vinayakumarb ) + OPTIMIZATIONS HDFS-7454. Reduce memory footprint for AclEntries in NameNode. http://git-wip-us.apache.org/repos/asf/hadoop/blob/786ba978/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 e7d8698..a62198f 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml +++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml @@ -48,6 +48,15 @@ In order to upgrade a HDFS cluster without downtime, the cluster must be setup with HA. /p p +If there is any new feature which is enabled in new software release, may not work with old software release after upgrade. +In such cases upgrade should be done by following steps. + /p + ol +liDisable new feature./li +liUpgrade the cluster./li +liEnable the new feature./li + /ol + p Note that rolling upgrade is supported only from Hadoop-2.4.0 onwards. /p subsection name=Upgrade without Downtime id=UpgradeWithoutDowntime
hadoop git commit: HDFS.7849. Update documentation for enabling a new feature in rolling upgrade ( Contributed by J.Andreina )
Repository: hadoop Updated Branches: refs/heads/branch-2.7 b8f269af9 - 76ce2e8ea HDFS.7849. Update documentation for enabling a new feature in rolling upgrade ( Contributed by J.Andreina ) (cherry picked from commit 5be5129d93481e9caae6a05b2361c463211a6d55) Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/76ce2e8e Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/76ce2e8e Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/76ce2e8e Branch: refs/heads/branch-2.7 Commit: 76ce2e8ea0a0c737992ca1ea3bd9aea33db98343 Parents: b8f269a Author: Vinayakumar B vinayakum...@apache.org Authored: Thu Mar 19 19:05:42 2015 +0530 Committer: Vinayakumar B vinayakum...@apache.org Committed: Thu Mar 19 19:10:23 2015 +0530 -- hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt | 3 +++ .../hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml| 9 + 2 files changed, 12 insertions(+) -- http://git-wip-us.apache.org/repos/asf/hadoop/blob/76ce2e8e/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 3dd5f1f..ac83ec8 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt +++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt @@ -439,6 +439,9 @@ Release 2.7.0 - UNRELEASED HDFS-7054. Make DFSOutputStream tracing more fine-grained (cmccabe) +HDFS.7849. Update documentation for enabling a new feature in rolling +upgrade ( J.Andreina via vinayakumarb ) + OPTIMIZATIONS HDFS-7454. Reduce memory footprint for AclEntries in NameNode. http://git-wip-us.apache.org/repos/asf/hadoop/blob/76ce2e8e/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 e7d8698..a62198f 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml +++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml @@ -48,6 +48,15 @@ In order to upgrade a HDFS cluster without downtime, the cluster must be setup with HA. /p p +If there is any new feature which is enabled in new software release, may not work with old software release after upgrade. +In such cases upgrade should be done by following steps. + /p + ol +liDisable new feature./li +liUpgrade the cluster./li +liEnable the new feature./li + /ol + p Note that rolling upgrade is supported only from Hadoop-2.4.0 onwards. /p subsection name=Upgrade without Downtime id=UpgradeWithoutDowntime
hadoop git commit: HDFS.7849. Update documentation for enabling a new feature in rolling upgrade ( Contributed by J.Andreina )
Repository: hadoop Updated Branches: refs/heads/trunk e79be0ee1 - 5be5129d9 HDFS.7849. Update documentation for enabling a new feature in rolling upgrade ( 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/5be5129d Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/5be5129d Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/5be5129d Branch: refs/heads/trunk Commit: 5be5129d93481e9caae6a05b2361c463211a6d55 Parents: e79be0e Author: Vinayakumar B vinayakum...@apache.org Authored: Thu Mar 19 19:05:42 2015 +0530 Committer: Vinayakumar B vinayakum...@apache.org Committed: Thu Mar 19 19:05:42 2015 +0530 -- hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt | 3 +++ .../hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml| 9 + 2 files changed, 12 insertions(+) -- http://git-wip-us.apache.org/repos/asf/hadoop/blob/5be5129d/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 d9e8b9e..ac58c39 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt +++ b/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt @@ -764,6 +764,9 @@ Release 2.7.0 - UNRELEASED HDFS-7054. Make DFSOutputStream tracing more fine-grained (cmccabe) +HDFS.7849. Update documentation for enabling a new feature in rolling +upgrade ( J.Andreina via vinayakumarb ) + OPTIMIZATIONS HDFS-7454. Reduce memory footprint for AclEntries in NameNode. http://git-wip-us.apache.org/repos/asf/hadoop/blob/5be5129d/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 28649a8..2ad28e1 100644 --- a/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml +++ b/hadoop-hdfs-project/hadoop-hdfs/src/site/xdoc/HdfsRollingUpgrade.xml @@ -48,6 +48,15 @@ In order to upgrade a HDFS cluster without downtime, the cluster must be setup with HA. /p p +If there is any new feature which is enabled in new software release, may not work with old software release after upgrade. +In such cases upgrade should be done by following steps. + /p + ol +liDisable new feature./li +liUpgrade the cluster./li +liEnable the new feature./li + /ol + p Note that rolling upgrade is supported only from Hadoop-2.4.0 onwards. /p subsection name=Upgrade without Downtime id=UpgradeWithoutDowntime
