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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5525) Make log aggregation service class configurable
Date Thu, 27 Oct 2016 22:07:59 GMT

    [ https://issues.apache.org/jira/browse/YARN-5525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15613387#comment-15613387

Xuan Gong commented on YARN-5525:

bq. What if the cluster provider doesn't want to use the existing AppLogAggregator at all,
then they need to ask all their user to set the customized aggregator in LogAggregationContext
for all jobs. Why don't we make the default/fallback implementation also configurable?

Sorry, I am confused. Why do we need a new implementation for AppLogAggregator ? If different
applications have different requirements for log aggregation, we could modify the logAggregationContext.
Please take a look at ContainerLogAggregationPolicy in LogAggregationContext. We set different
policy for different applications, and based on the ContainerLogAggregationPolicy, we could
do the log aggregations differently.

> Make log aggregation service class configurable
> -----------------------------------------------
>                 Key: YARN-5525
>                 URL: https://issues.apache.org/jira/browse/YARN-5525
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: log-aggregation
>            Reporter: Giovanni Matteo Fumarola
>            Assignee: Botong Huang
>            Priority: Minor
>              Labels: oct16-medium
>         Attachments: YARN-5525.v1.patch, YARN-5525.v2.patch, YARN-5525.v3.patch
> Make the log aggregation class configurable and extensible, so that alternative log aggregation
behaviors like app specific log aggregation directory, log aggregation format can be implemented
and plugged in.

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