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https://issues.apache.org/jira/browse/HDFS-16682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17607344#comment-17607344
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Erik Krogen commented on HDFS-16682:
------------------------------------

I remember at the time we built this feature, [~shv]  had reservations about 
exposing these as configurable parameters. Konstantin, do you have any 
commentary here?

 

One high-level comment is that if we do add configs, they should be namespaced 
to make their purpose more clear as a part of the observer namenode feature 
specifically.

> [SBN Read] make estimated transactions configurable
> ---------------------------------------------------
>
>                 Key: HDFS-16682
>                 URL: https://issues.apache.org/jira/browse/HDFS-16682
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: zhengchenyu
>            Assignee: zhengchenyu
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> In GlobalStateIdContext, ESTIMATED_TRANSACTIONS_PER_SECOND and 
> ESTIMATED_SERVER_TIME_MULTIPLIER should be configured.
> These parameter depends  on different cluster's load. In the other way, these 
> config will help use to simulate observer namenode was far behind.



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