[HBASE-17760] HDFS Balancer doc is misleading

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: documentation
• Hadoop Flags: Reviewed
• Assignee: Harsh J
• Reporter: Harsh J
• Created: 08/Mar/17 08:51
• Updated: 23/Jun/22 19:12
• Resolved: 09/Mar/17 14:36

Description

HBASE-15332 added a doc note about how to use HDFS-6133, but the steps it adds are incorrect. The specific balancer command provided in the doc note is incorrect and not required.

Since HBase uses favored nodes features internally (HBASE-7932), and HBASE-7942 extended that information to cover HDFS hinting too, the only step required in the doc note is to enable the pinning feature DN-side.

Issue Links

• is related to: HBASE-7932 Do the necessary plumbing for the region locations in META table and send the info to the RegionServers
• is related to: HBASE-7942 Make use of the plumbing in HBASE-7932 to provide location hints when region files are created
• is related to: HBASE-15332 Document how to take advantage of HDFS-6133 in HBase
• is related to: HBASE-21014 Improve Stochastic Balancer to write HDFS favoured node hints for region primary blocks to avoid destroying data locality if needing to use HDFS Balancer
• is related to: HBASE-15531 Favored Nodes Enhancements