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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-12235) Ozone: DeleteKey-3: KSM SCM block deletion message and ACK interactions
Date Mon, 11 Sep 2017 03:17:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16160607#comment-16160607
] 

Anu Engineer edited comment on HDFS-12235 at 9/11/17 3:16 AM:
--------------------------------------------------------------

+1, for v11. Thanks for getting this done. Please go ahead and commit. 2 Minor comments:

1. The blockManagerImpl code with change a bit with the Ratis pipeline work, so I will rebase
my work over this patch once this is committed.

2. BlockManagerImpl.java, deleteBlocks -- is there a reason why we removed the chill mode
check? It is not important, but just wondering if we need that at all?

cc: [~xyao]


was (Author: anu):
+1, for v11. Thanks for getting this done. Please go ahead and commit. 2 Minor comments:

1. The blockManagerImpl code with change a bit with the Ratis pipeline work, so I will rebase
my work over this patch once this is committed.

2. BlockManagerImpl.java, deleteBlocks -- is there a reason why we removed the chill mode
check? It is not important, but just wondering if we need that at all?


> Ozone: DeleteKey-3: KSM SCM block deletion message and ACK interactions
> -----------------------------------------------------------------------
>
>                 Key: HDFS-12235
>                 URL: https://issues.apache.org/jira/browse/HDFS-12235
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>    Affects Versions: HDFS-7240
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>              Labels: ozoneMerge
>         Attachments: HDFS-12235-HDFS-7240.001.patch, HDFS-12235-HDFS-7240.002.patch,
HDFS-12235-HDFS-7240.003.patch, HDFS-12235-HDFS-7240.004.patch, HDFS-12235-HDFS-7240.005.patch,
HDFS-12235-HDFS-7240.006.patch, HDFS-12235-HDFS-7240.007.patch, HDFS-12235-HDFS-7240.008.patch,
HDFS-12235-HDFS-7240.009.patch, HDFS-12235-HDFS-7240.010.patch, HDFS-12235-HDFS-7240.011.patch
>
>
> KSM and SCM interaction for delete key operation, both KSM and SCM stores key state info
in a backlog, KSM needs to scan this log and send block-deletion command to SCM, once SCM
is fully aware of the message, KSM removes the key completely from namespace. See more from
the design doc under HDFS-11922, this is task break down 2.



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