Author: szetszwo Date: Wed Jun 18 18:45:23 2014 New Revision: 1603572 URL: http://svn.apache.org/r1603572 Log: svn merge -c 1603571 from trunk for HDFS-6530. Fix Balancer documentation.
Modified: hadoop/common/branches/branch-2/hadoop-hdfs-project/ (props changed) hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/ (props changed) hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/Federation.apt.vm hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/HdfsUserGuide.apt.vm Propchange: hadoop/common/branches/branch-2/hadoop-hdfs-project/ ------------------------------------------------------------------------------ Merged /hadoop/common/trunk/hadoop-hdfs-project:r1603571 Propchange: hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/ ------------------------------------------------------------------------------ Merged /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs:r1603571 Modified: hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt?rev=1603572&r1=1603571&r2=1603572&view=diff ============================================================================== --- hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt (original) +++ hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt Wed Jun 18 18:45:23 2014 @@ -195,6 +195,8 @@ Release 2.5.0 - UNRELEASED HDFS-6545. Finalizing rolling upgrade can make NN unavailable for a long duration. (kihwal) + HDFS-6530. Fix Balancer documentation. (szetszwo) + OPTIMIZATIONS HDFS-6214. Webhdfs has poor throughput for files >2GB (daryn) Modified: hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/Federation.apt.vm URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/Federation.apt.vm?rev=1603572&r1=1603571&r2=1603572&view=diff ============================================================================== --- hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/Federation.apt.vm (original) +++ hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/Federation.apt.vm Wed Jun 18 18:45:23 2014 @@ -287,13 +287,14 @@ HDFS Federation Policy could be: - * <<<node>>> - this is the <default> policy. This balances the storage at + * <<<datanode>>> - this is the <default> policy. This balances the storage at the datanode level. This is similar to balancing policy from prior releases. * <<<blockpool>>> - this balances the storage at the block pool level. Balancing at block pool level balances storage at the datanode level also. - Note that Balander only balances the data and does not balance the namespace. + Note that Balancer only balances the data and does not balance the namespace. + For the complete command usage, see {{{../hadoop-common/CommandsManual.html#balancer}balancer}}. ** Decommissioning Modified: hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/HdfsUserGuide.apt.vm URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/HdfsUserGuide.apt.vm?rev=1603572&r1=1603571&r2=1603572&view=diff ============================================================================== --- hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/HdfsUserGuide.apt.vm (original) +++ hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/site/apt/HdfsUserGuide.apt.vm Wed Jun 18 18:45:23 2014 @@ -77,7 +77,7 @@ HDFS Users Guide * <<<fetchdt>>>: a utility to fetch DelegationToken and store it in a file on the local system. - * Rebalancer: tool to balance the cluster when the data is + * Balancer: tool to balance the cluster when the data is unevenly distributed among DataNodes. * Upgrade and rollback: after a software upgrade, it is possible @@ -316,7 +316,7 @@ HDFS Users Guide For command usage, see {{{../hadoop-common/CommandsManual.html#namenode}namenode}}. -* Rebalancer +* Balancer HDFS data might not always be be placed uniformly across the DataNode. One common reason is addition of new DataNodes to an existing cluster. @@ -338,7 +338,7 @@ HDFS Users Guide Due to multiple competing considerations, data might not be uniformly placed across the DataNodes. HDFS provides a tool for administrators that analyzes block placement and rebalanaces data across the DataNode. - A brief administrator's guide for rebalancer as a PDF is attached to + A brief administrator's guide for balancer is available at {{{https://issues.apache.org/jira/browse/HADOOP-1652}HADOOP-1652}}. For command usage, see {{{../hadoop-common/CommandsManual.html#balancer}balancer}}.