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From "Ahmet Altay (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (BEAM-1506) py DataflowRunner should warn if the stagingLocation has a TTL
Date Thu, 06 Apr 2017 17:26:41 GMT

     [ https://issues.apache.org/jira/browse/BEAM-1506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ahmet Altay updated BEAM-1506:
------------------------------
    Labels: newbie starter  (was: )

> py DataflowRunner should warn if the stagingLocation has a TTL
> --------------------------------------------------------------
>
>                 Key: BEAM-1506
>                 URL: https://issues.apache.org/jira/browse/BEAM-1506
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-py
>            Reporter: Daniel Halperin
>            Priority: Minor
>              Labels: newbie, starter
>
> We have seen a few customers run into a hard-to-track-down bug where the staging bucket
has a TTL, but files get TTL-deleted when they are still needed.
> This might be because of:
> 1. Long lived batch jobs / streaming jobs can reference staged files arbitrarily later
and will fail in bad ways if they have been deleted.
> 2. Some customers even hit issues where the "check file already exists" succeeds when
starting a job, but then the file is TTL-deleted before the job actually starts. (This sounds
crazy, but may happen if TTL is 7 days and jobs run every 7 days, for example. Race condition.)
> I'm hoping it's not hard to check that files would have TTLs and warn if so.



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