debug application master

[#1]

How to enable debug logs for Application Master ?

[#2 · Accepted solution]

@Monalisa Tripathy

Is this what you are looking out for?

tez.am.log.level => Root logging level passed to the Tez Application Master.

yarn.app.mapreduce.am.log.level => The logging level for the MR ApplicationMaster. The allowed levels are: OFF, FATAL, ERROR, WARN, INFO, DEBUG, TRACE and ALL

[#3]

@Monalisa Tripathy

Did that answer your query? If yes, then please mark this thread as answered by clicking on the "Accept" button .. If you have any additional query then please post back.

[#4]

@Jay Kumar SenSharma : thanks yes. Can you help me with configuration file where I need to set value for yarn.app.mapreduce.am.log.level

[#5]

@Monalisa Tripathy

The mentioned property should go inside mapred-site.xml.

Via Ambari UI --> MapReduce2 --> Configs --> Advanced --> "Advanced mapred-site". you will find a property by default set to INFO as following there you can change it to DEBUG:

yarn.app.mapreduce.am.log.level=INFO

.

[#6]

The above question and the entire reply thread below was originally posted in the Community Help Track. On Tue Jun 4 01:52 UTC 2019, a member of the HCC moderation staff moved it to the Cloud & Operations track. The Community Help Track is intended for questions about using the HCC site itself.