HBASE-17760 HDFS Balancer doc is misleading (Harsh J)
Project: http://git-wip-us.apache.org/repos/asf/hbase/repo Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/2304e7ec Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/2304e7ec Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/2304e7ec Branch: refs/heads/hbase-12439 Commit: 2304e7eced9e27cef9b6a6a7f2700df5bcb29140 Parents: 1b5afc3 Author: tedyu <[email protected]> Authored: Wed Mar 8 15:59:30 2017 -0800 Committer: tedyu <[email protected]> Committed: Wed Mar 8 15:59:30 2017 -0800 ---------------------------------------------------------------------- src/main/asciidoc/_chapters/troubleshooting.adoc | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/hbase/blob/2304e7ec/src/main/asciidoc/_chapters/troubleshooting.adoc ---------------------------------------------------------------------- diff --git a/src/main/asciidoc/_chapters/troubleshooting.adoc b/src/main/asciidoc/_chapters/troubleshooting.adoc index c6253b8..e1d1717 100644 --- a/src/main/asciidoc/_chapters/troubleshooting.adoc +++ b/src/main/asciidoc/_chapters/troubleshooting.adoc @@ -1365,13 +1365,13 @@ on the HBase balancer, since the HDFS balancer would degrade locality. This advi is still valid if your HDFS version is lower than 2.7.1. + link:https://issues.apache.org/jira/browse/HDFS-6133[HDFS-6133] provides the ability -to exclude a given directory from the HDFS load balancer, by setting the -`dfs.datanode.block-pinning.enabled` property to `true` in your HDFS -configuration and running the following hdfs command: +to exclude favored-nodes (pinned) blocks from the HDFS load balancer, by setting the +`dfs.datanode.block-pinning.enabled` property to `true` in the HDFS service +configuration. + ----- -$ sudo -u hdfs hdfs balancer -exclude /hbase ----- +HBase can be enabled to use the HDFS favored-nodes feature by switching the HBase balancer +class (conf: `hbase.master.loadbalancer.class`) to `org.apache.hadoop.hbase.favored.FavoredNodeLoadBalancer` +which is documented link:https://hbase.apache.org/devapidocs/org/apache/hadoop/hbase/favored/FavoredNodeLoadBalancer.html[here]. + NOTE: HDFS-6133 is available in HDFS 2.7.0 and higher, but HBase does not support running on HDFS 2.7.0, so you must be using HDFS 2.7.1 or higher to use this feature
