Hi Health script should execute successfully. If your health check required to fail, than add ERROR that print in console. This is because health script may fail because of Syntax error, Command not found(IOexception) or several other reasons.
In order to work health script, Do not add "exit -1". #!/bin/bash echo "ERROR disk full" Thanks & Regards Rohith Sharma K S From: Anfernee Xu [mailto:anfernee...@gmail.com] Sent: 19 March 2014 10:32 To: user Subject: How to configure nodemanager.health-checker.script.path Hello, I'm running MR with 2.2.0 release, I noticed we can configure "nodemanager.health-checker.script.path" in yarn-site.xml to customize NM health checking, so I add below properties to yarn-site.xml <property> <name>yarn.nodemanager.health-checker.script.path</name> <value>/scratch/software/hadoop2/hadoop-dc/node_health.sh</value> </property> <property> <name>yarn.nodemanager.health-checker.interval-ms</name> <value>10000</value> </property> To get a feel about this, the /scratch/software/hadoop2/hadoop-dc/node_health.sh simply print an ERROR message as below #!/bin/bash echo "ERROR disk full" exit -1 But it seems not working, the node is still in health state, did I missing something? Thanks for your help. -- --Anfernee
