[HDFS-11265] Extend visualization for Maintenance Mode under Datanode tab in the NameNode UI

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 2.9.0, 3.0.0-alpha4
• Component/s: datanode, namenode
• Target Version/s: 3.0.0-alpha4
• Hadoop Flags: Reviewed
• Assignee: Marton Elek
• Reporter: Manoj Govindassamy
• Created: 20/Dec/16 21:44
• Updated: 05/Mar/18 18:43
• Resolved: 16/Feb/17 04:36

Description

With HDFS-9391, DataNodes in MaintenanceModes states are shown under DataNode page in NameNode UI, but they are lacking icon visualization like the ones shown for other node states. Need to extend the icon visualization to cover Maintenance Mode.

<script type="text/x-dust-template" id="tmpl-datanode">
<div class="page-header"><h1>Datanode Information</h1></div>
<div>
  <ul class="dfshealth-node-legend">
    <li class="dfshealth-node-icon dfshealth-node-alive">In service</li>
    <li class="dfshealth-node-icon dfshealth-node-down">Down</li>
    <li class="dfshealth-node-icon dfshealth-node-decommissioned">Decommissioned</li>
    <li class="dfshealth-node-icon dfshealth-node-down-decommissioned">Decommissioned &amp; dead</li>
  </ul>
</div>

Issue Links

• is related to: HDFS-13231 Extend visualization for Decommissioning, Maintenance Mode under Datanode tab in the NameNode UI