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https://issues.apache.org/jira/browse/HDDS-699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16752183#comment-16752183
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Yiqun Lin edited comment on HDDS-699 at 1/25/19 11:39 AM:
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For the unit test, some comments from me:
*TestNetworkTopology#testAncestor*
line 209: This is same to the line 200. Should this intend to be
{{isSameAncestor(dataNodes[1], dataNodes[2], maxLevel - 1)}}?
*TestNetworkTopology#testAddRemove*
We should add some corner cases as I mentioned above;
https://issues.apache.org/jira/browse/HDDS-699?focusedCommentId=16747999&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16747999
*TestNetworkTopology#testCreateInvalidTopology*
Line 189: I prefer to verify this with a more detail message
{{assertTrue(e.getMessage().startsWith("Failed to add...Its path depth is not
..."));}}. It will be easy to understand.
Additional one comment for the place:
*NetworkTopology#sortByDistanceCost*
Line 599: This can be simplified to {{Collections.shuffle(list)}}. It will
reuse the random instance inside {{Collections}}.
was (Author: linyiqun):
For the unit test, some comments from me:
*TestNetworkTopology#testAncestor*
line 209: This is same to the line 200. Should this intend to be
{{isSameAncestor(dataNodes[1], dataNodes[2], maxLevel - 1)}}?
*TestNetworkTopology#testAddRemove*
We should add some corner cases as I mentioned above;
https://issues.apache.org/jira/browse/HDDS-699?focusedCommentId=16747999&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16747999
*TestNetworkTopology#testCreateInvalidTopology*
Line 189: I prefer to verify this with a more detail message
{{assertTrue(e.getMessage().startsWith("Failed to add...Its path depth is
not"));}}. It will be easy to understanding.
Additional one comment for the place:
*NetworkTopology#sortByDistanceCost*
Line 599: This can be simplified to {{Collections.shuffle(list)}}. It will
reuse the random instance inside {{Collections}}.
> Detect Ozone Network topology
> -----------------------------
>
> Key: HDDS-699
> URL: https://issues.apache.org/jira/browse/HDDS-699
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Reporter: Xiaoyu Yao
> Assignee: Sammi Chen
> Priority: Major
> Attachments: HDDS-699.00.patch, HDDS-699.01.patch
>
>
> Traditionally this has been implemented in Hadoop via script or customizable
> java class. One thing we want to add here is the flexible multi-level support
> instead of fixed levels like DC/Rack/NG/Node.
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