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From "Till Rohrmann (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-9752) Add an S3 RecoverableWriter
Date Sat, 15 Sep 2018 21:30:08 GMT

     [ https://issues.apache.org/jira/browse/FLINK-9752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Till Rohrmann updated FLINK-9752:
---------------------------------
    Fix Version/s:     (was: 1.6.1)

> Add an S3 RecoverableWriter
> ---------------------------
>
>                 Key: FLINK-9752
>                 URL: https://issues.apache.org/jira/browse/FLINK-9752
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Streaming Connectors
>            Reporter: Stephan Ewen
>            Assignee: Kostas Kloudas
>            Priority: Major
>             Fix For: 1.7.0, 1.6.2
>
>
> S3 offers persistence only when uploads are complete. That means at the end of simple
uploads and uploads of parts of a MultiPartUpload.
> We should implement a RecoverableWriter for S3 that does a MultiPartUpload with a Part
per checkpoint.
> Recovering the reader needs the MultiPartUploadID and the list of ETags of previous parts.
> We need additional staging of data in Flink state to work around the fact that
>  - Parts in a MultiPartUpload must be at least 5MB
>  - Part sizes must be known up front. (Note that data can still be streamed in the upload)



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