[jira] [Updated] (FLINK-7467) a slow client on the BlobServer may block writing operations

["Konstantin Knauf (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-7467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Konstantin Knauf updated FLINK-7467:
------------------------------------
      Labels:   (was: auto-closed)
    Priority: Not a Priority  (was: Minor)

> a slow client on the BlobServer may block writing operations
> ------------------------------------------------------------
>
>                 Key: FLINK-7467
>                 URL: https://issues.apache.org/jira/browse/FLINK-7467
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / Coordination, Runtime / Network
>    Affects Versions: 1.3.0, 1.3.1, 1.3.2, 1.4.0
>            Reporter: Nico Kruber
>            Priority: Not a Priority
>
> Since FLINK-6020, a locking mechanism was introduced to isolate reading from writing operations. This, however, will cause a slow client to slow down all write operations and may not be desirable at this level.
> The current usage patterns, however, first write all BLOBs (during job submission) and then read the needed ones when the TaskManagers need them. The slowdown may thus materialize only when multiple jobs are submitted concurrently and these phases overlap.



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