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From Madhusudan Ramanna <>
Subject Re: Question about yarn.timeline-service.enabled
Date Fri, 09 Dec 2016 18:36:13 GMT
So, we moved beyond this problem. Yarn configuration object needed to be explicitly instantiated
in the right spot even though yarn config files were present on the classpath

    On Wednesday, December 7, 2016 8:32 PM, Madhusudan Ramanna <>

 We're in the process of setting up Tez UI, and nothing is being logged to timeline server
and we see "no records available" in tez ui
We already have the following config in tez-site.xml
  <property>    <description>Enable Tez to use the Timeline Server for History
Logging</description>    <name>tez.history.logging.service.class</name> 

This is what we're seeing in logs >>>>>>>>> 
2016-12-08 00:05:52,126 [INFO] [main] |history.HistoryEventHandler|: Initializing HistoryEventHandler
withrecoveryEnabled=true, historyServiceClassName=org.apache.tez.dag.history.logging.ats.ATSHistoryLoggingService

2016-12-08 00:05:52,135 [WARN] [main] |ats.ATSHistoryLoggingService|: org.apache.tez.dag.history.logging.ats.ATSHistoryLoggingService
is disabled due to Timeline Service being disabled, yarn.timeline-service.enabled set to false


    On Wednesday, December 7, 2016 8:02 PM, Jonathan Eagles <> wrote:

 Adding to Gopal, this configuration can be found as part of the Tez UI setup which has more
information regarding the configuration and enablement of the Tez UI that is powered from
the data stored in the Timeline store.

On Wed, Dec 7, 2016 at 9:44 PM, Gopal Vijayaraghavan <> wrote:

> I'm at a loss to explain why Tez thinks that yarn.timeline-service. enabled is false
and therefore is not logging to timeline server

That's the YARN timeline configs. Not the Tez one.

    <name>tez.history.logging. service.class</name>
    <value>org.apache.tez.dag. history.logging.impl. SimpleHistoryLoggingService</
<!-- enable ATS
    <value>org.apache.tez.dag. history.logging.ats. ATSHistoryLoggingService</

Those are the 2 configs to disable/enable ATS usage in Tez.



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