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Posted to commits@samza.apache.org by "Tao Feng (JIRA)" <ji...@apache.org> on 2015/12/04 01:24:10 UTC

[jira] [Commented] (SAMZA-539) Add generic lag metric from high watermark - last processed message

    [ https://issues.apache.org/jira/browse/SAMZA-539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15039486#comment-15039486 ] 

Tao Feng commented on SAMZA-539:
--------------------------------

I want to give a try on this ticket. 

> Add generic lag metric from high watermark - last processed message
> -------------------------------------------------------------------
>
>                 Key: SAMZA-539
>                 URL: https://issues.apache.org/jira/browse/SAMZA-539
>             Project: Samza
>          Issue Type: Improvement
>          Components: metrics
>    Affects Versions: 0.9.0
>            Reporter: Yan Fang
>            Assignee: Tao Feng
>              Labels: newbie++
>
> This is a follow-up ticket for SAMZA-503 .
> The gauge is to show the lag between _the offset of the most recent message on the incoming stream_ and _the offset of the most recent message that the StreamTask has processed_.
> As discussed in SAMZA-503, we could add a IncomingMessageEnvelope.getMaxOffset() API .



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