[MAPREDUCE-3637] Health checker interval does not appear to work - according to web ui

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Cannot Reproduce
• Affects Version/s: 0.23.0
• Component/s: mrv2
• Target Version/s: 0.23.0
• Assignee: Unassigned
• Reporter: Thomas Graves
• Created: 06/Jan/12 21:15
• Updated: 06/Jan/12 22:29
• Resolved: 06/Jan/12 22:29

Description

reported by QE, I think this is probably a web ui not updating issue, but not positive.

1. The property yarn.nodemanager.health-checker.interval-ms on the RM and the DN are set to 135000 ms, or 2 minutes and
15 sec.

$ grep -A 2 "health-checker.interval-ms" yarn-site.xml
<name>yarn.nodemanager.health-checker.interval-ms</name>
<value>135000</value>
</property>

2. According to the web ui (e.g http://rm:8088/cluster/nodes), the 'last health-update'
column does not get updated, except when the RM is restated.