[HDFS-16811] Support DecommissionBackoffMonitor parameters reconfigurable

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.4.0, 3.3.6
• Labels: pull-request-available
• Assignee: Haiyang Hu
• Reporter: Haiyang Hu
• Created: 21/Oct/22 13:44
• Updated: 08/Jun/23 23:26
• Resolved: 07/Nov/22 04:55

Description

When the Backoff monitor is enabled, decommissionBackoffMonitor Parameters to reconfigurable

1.the parameter dfs.namenode.decommission.backoff.monitor.pending.limit can be dynamically adjusted to determines the maximum number of blocks related to decommission and maintenance operations that can be loaded into the replication queue.

2.the parameter dfs.namenode.decommission.backoff.monitor.pending.blocks.per.lock can be dynamically adjusted to determines release the namenode write lock after the numbe of blocks to process when moving blocks to pendingReplication .

Issue Links

• duplicates: HDFS-16810 Support to make dfs.namenode.decommission.backoff.monitor.pending.blocks.per.lock reconfigurable
• links to: GitHub Pull Request #5068
• links to: GitHub Pull Request #5108
• links to: GitHub Pull Request #5122