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Posted to hdfs-issues@hadoop.apache.org by "Yi Liu (JIRA)" <ji...@apache.org> on 2015/06/01 15:31:18 UTC

[jira] [Updated] (HDFS-8328) Follow-on to update decode for DataNode striped blocks reconstruction

     [ https://issues.apache.org/jira/browse/HDFS-8328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yi Liu updated HDFS-8328:
-------------------------
    Attachment: HDFS-8328-HDFS-7285.002.patch

Update the patch.

Ideally we can exact some common logic of decoding for both client side and DN side.  But the read and decode logic in DN side is much more simper than client side, since in DN side, we handle from 0 position until end for all internal blocks of the striped group, even thought we may need to reconstruct both data or parity block.

We can do the refinement work in follow-on of phase 1.

> Follow-on to update decode for DataNode striped blocks reconstruction
> ---------------------------------------------------------------------
>
>                 Key: HDFS-8328
>                 URL: https://issues.apache.org/jira/browse/HDFS-8328
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Yi Liu
>            Assignee: Yi Liu
>         Attachments: HDFS-8328-HDFS-7285.001.patch, HDFS-8328-HDFS-7285.002.patch
>
>
> Current the decode for DataNode striped blocks reconstruction is a workaround, we need to update it after the decode fix in HADOOP-11847.



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