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https://issues.apache.org/jira/browse/LENS-273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14308585#comment-14308585
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Srikanth Sundarrajan commented on LENS-273:
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>From my limited knowledge of HDFS, it would be shipping data in form of 64K
>packets comprised of chunks used for computing checksum regardless of the
>buffer size used for write. Even if you were to use 1MB block size, the call
>would be blocked on file::complete() till the write pipeline is done. So the
>lock might be held almost for a similar time even with a increased block size,
>as long as the locking scope includes file::close()
> Persisting server state should not lock LensServices
> ----------------------------------------------------
>
> Key: LENS-273
> URL: https://issues.apache.org/jira/browse/LENS-273
> Project: Apache Lens
> Issue Type: Bug
> Components: server
> Reporter: Amareshwari Sriramadasu
> Priority: Critical
> Fix For: 2.1
>
>
> We are seeing issues when writing to HDFS which locked LensServices, the
> requests on Lens are waiting to lock LensServices again.
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