[AMBARI-13643] Warn if Xmn size is oversubscribed in AMS HBase master and region server config

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.1.2
• Fix Version/s: 2.2.0
• Component/s: ambari-metrics
• Assignee: Aravindan Vijayan
• Reporter: Aravindan Vijayan
• Created: 29/Oct/15 21:21
• Updated: 15/Dec/15 22:41
• Resolved: 30/Oct/15 20:23

Description

Problem/Bug
While setting the AMS configuration, the user can set any unbounded value for the Xmn settings. This might lead to undesirable outcomes from the JVM.

Fix
Provide validation of Xmn settings based on AMS mode.

If AMS is operating in embedded mode
regionserver_xmn ---- 12-20% of ( hbase_master_heapsize + hbase_regionserver_heapsize)
If AMS is operating in distributed distributed mode
hbase_master_xmn ---- 12 - 20% of hbase_master_heapsize
regionserver_xmn ---- 12 - 20% of hbase_regionserver_heapsize

Issue Links

• links to: Review Board