[jira] [Work logged] (BEAM-6188) Create unbounded synthetic source

[ASF GitHub Bot (JIRA)]

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https://issues.apache.org/jira/browse/BEAM-6188?focusedWorklogId=173017&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-173017
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ASF GitHub Bot logged work on BEAM-6188:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 07/Dec/18 16:58
            Start Date: 07/Dec/18 16:58
    Worklog Time Spent: 10m 
      Work Description: lgajowy edited a comment on issue #7226: [BEAM-6188] 
Unbouded synthetic source
URL: https://github.com/apache/beam/pull/7226#issuecomment-445293884
 
 
   As a "tittle-tattle"/proof, the watermark looks like this for each advance() 
method invocation: 
   
   <img width="1718" alt="screenshot 2018-12-07 at 17 38 46" 
src="https://user-images.githubusercontent.com/1932045/49660556-2aa6da00-fa47-11e8-8c42-3ec5fffc8fc8.png";>
   
   Relevant params: 
    - processingTimeDelayDistribution: "type":"uniform","lower":50,"upper":250
    - watermarkDriftMillis:0
    - watermarkSearchInAdvanceCount: 100 
   
   I don't know why there's this "gap" between ~3800 - ~4250 in processing 
time. Do you have any idea?

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Issue Time Tracking
-------------------

    Worklog Id:     (was: 173017)
    Time Spent: 1h 10m  (was: 1h)

> Create unbounded synthetic source
> ---------------------------------
>
>                 Key: BEAM-6188
>                 URL: https://issues.apache.org/jira/browse/BEAM-6188
>             Project: Beam
>          Issue Type: Bug
>          Components: testing
>            Reporter: Lukasz Gajowy
>            Assignee: Lukasz Gajowy
>            Priority: Major
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> It is needed for streaming scenarios. It should provide ways to reason about 
> time and recovering from checkpoints. 



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