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https://issues.apache.org/jira/browse/HDFS-12781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16239944#comment-16239944
]
Brahma Reddy Battula commented on HDFS-12781:
---------------------------------------------
[~Harsha1206] thanks for reporting.
As per [datable doc|https://datatables.net/manual/tech-notes/4], Each cell in
DataTables requests data, and when DataTables tries to obtain data for a cell
and is unable to do so, it will trigger a warning, telling you that data is not
available where it was expected to be.
when node is dead,as we can't get the values() it through's this warn.
When I give {{defaultContent}},this error will disappear.I feel, we should add
{{defaultContent}} to all the cells.
{code}
{ 'orderDataType': 'ng-value', 'searchable': true , "defaultContent":
"" },
{ 'orderDataType': 'ng-value', 'searchable': true ,
"defaultContent": ""},
{ 'orderDataType': 'ng-value', 'type': 'num' , "defaultContent":
0},
{ 'orderDataType': 'ng-value', 'type': 'num' , "defaultContent":
0},
{ 'orderDataType': 'ng-value', 'type': 'num' , "defaultContent":
0},
{ 'type': 'num' , "defaultContent": 0},
{ 'orderDataType': 'ng-value', 'type': 'num' , "defaultContent":
0},
{ 'type': 'string' , "defaultContent": ""}
{code}
> After Datanode down, In Namenode UI Datanode tab is throwing warning message.
> -----------------------------------------------------------------------------
>
> Key: HDFS-12781
> URL: https://issues.apache.org/jira/browse/HDFS-12781
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 3.0.0-alpha1
> Reporter: Harshakiran Reddy
>
> Scenario:
> Stop one Datanode
> Refresh or click on the Datanode tab in namenode UI.
> Actual Output:
> ==============
> it's throwing the warning message. please find the bellow warning message.
> DataTables warning: table id=table-datanodes - Requested unknown parameter
> '7' for row 2. For more information about this error, please see
> http://datatables.net/tn/4
> Expected Output:
> ================
> whenever you click on Datanode tab,it should be display the datanodes
> information.
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