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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDDS-203) Add getCommittedBlockLength API in datanode
Date Wed, 25 Jul 2018 21:17:00 GMT

    [ https://issues.apache.org/jira/browse/HDDS-203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16556281#comment-16556281
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Tsz Wo Nicholas Sze commented on HDDS-203:
------------------------------------------

I have filed HDDS-293 for some improvement on the chunk list and data size calculation.

> Add getCommittedBlockLength API in datanode
> -------------------------------------------
>
>                 Key: HDDS-203
>                 URL: https://issues.apache.org/jira/browse/HDDS-203
>             Project: Hadoop Distributed Data Store
>          Issue Type: New Feature
>          Components: Ozone Client, Ozone Datanode
>            Reporter: Shashikant Banerjee
>            Assignee: Shashikant Banerjee
>            Priority: Major
>             Fix For: 0.2.1
>
>         Attachments: HDDS-203.00.patch, HDDS-203.01.patch, HDDS-203.02.patch, HDDS-203.03.patch,
HDDS-203.04.patch, HDDS-203.05.patch, HDDS-203.06.patch
>
>
> When a container gets closed on the Datanode while the active Writes are happening by
OzoneClient, Client Write requests will fail with ContainerClosedException. In such case,
ozone Client needs to enquire the last committed block length from dataNodes and update the
OzoneMaster with the updated length for the block. This Jira proposes to add to RPC call to
get the last committed length of a block on a Datanode.



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