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https://issues.apache.org/jira/browse/HDDS-700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16847188#comment-16847188
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Sammi Chen edited comment on HDDS-700 at 5/24/19 2:27 AM:
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Thanks [~xyao] for helping review and commit the patch.
{quote}DatanodeDetails.java
Line 357: if the network topology has additional layers above RACK, should we
consider a more generic default network location?{quote}
I thought the same. It would better to get the default network location from
NetworkTopologyInstance. But that means NetworkTopologyInstance need to passed
in as a parameter when instantiating a DatanodeDetails object. Will think
about how to refactor this part in follow JIRAs.
was (Author: sammi):
bq. Thanks [~xyao] for helping review and commit the patch.
{quote}DatanodeDetails.java
Line 357: if the network topology has additional layers above RACK, should we
consider a more generic default network location?{quote}
I thought the same. It would better to get the default network location from
NetworkTopologyInstance. But that means NetworkTopologyInstance need to passed
in as a parameter when instantiating a DatanodeDetails object. Will think
about how to refactor this part in follow JIRAs.
> Support rack awared node placement policy based on network topology
> -------------------------------------------------------------------
>
> Key: HDDS-700
> URL: https://issues.apache.org/jira/browse/HDDS-700
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Reporter: Xiaoyu Yao
> Assignee: Sammi Chen
> Priority: Major
> Fix For: 0.4.1
>
> Attachments: HDDS-700.01.patch, HDDS-700.02.patch, HDDS-700.03.patch
>
>
> Implement a new container placement policy implementation based datanode's
> network topology. It follows the same rule as HDFS.
> By default with 3 replica, two replica will be on the same rack, the third
> replica and all the remaining replicas will be on different racks.
>
> {color:#808080} {color}
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