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https://issues.apache.org/jira/browse/HDDS-191?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16522519#comment-16522519
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Elek, Marton commented on HDDS-191:
-----------------------------------
Thanks you the review [~anu]
I added two precondition checks to the constructor of CommandForDatanode for
the fields and one for SCMNodeManager.onMessage. (+ the unused import is also
fixed)
> Queue SCMCommands via EventQueue in SCM
> ---------------------------------------
>
> Key: HDDS-191
> URL: https://issues.apache.org/jira/browse/HDDS-191
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Reporter: Elek, Marton
> Assignee: Elek, Marton
> Priority: Major
> Fix For: 0.2.1
>
> Attachments: HDDS-191.001.patch, HDDS-191.002.patch
>
>
> As a first step towards to a ReplicationManager I propose to introduce the
> EventQueue to the StorageContainerManager and enable to send SCMCommands via
> EventQueue.
> With this separation the ReplicationManager could easily send the appropriate
> SCMCommand (eg. CopyContainer) to the EventQueue without hard dependency to
> the SCMNodeManager. (And later we can introduce the CommandWatchers without
> modifying the ReplicationManager part)
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