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https://issues.apache.org/jira/browse/HDFS-6407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14529143#comment-14529143
]
Haohui Mai commented on HDFS-6407:
----------------------------------
{code}
+jQuery.fn.dataTable.ext.type.detect.unshift( function ( data ) {
+ if ( typeof data !== 'string' ) {
+ return null;
+ }
+
+ var units = data.replace( /[\d\.]/g, '' ).toLowerCase().trim();
+ if ( units !== '' && units !== 'b' && units !== 'kb' && units !== 'mb'
&& units !== 'gb' && units !== 'tb' && units !== 'pb' ) {
+ return null;
+ }
+ return isNaN( parseFloat( data.trim() ) ) ?
+ null :
+ 'file-size';
+} );
+
+jQuery.fn.dataTable.ext.type.detect.unshift( function ( data ) {
+ if ( typeof data !== 'string' ) {
+ return null;
+ }
+
+ var units = data.replace( /[\d\.\(\%\)]/g, '' ).toLowerCase().trim();
+ if ( units !== '' && units !== 'b' && units !== 'kb' && units !== 'mb'
&& units !== 'gb' && units !== 'tb' && units !== 'pb' ) {
+ return null;
+ }
+ return isNaN( parseFloat( data.trim() ) ) ?
+ null :
+ 'file-size-percent';
+} );
+
+/**
+ * When dealing with computer file sizes, it is common to append a post fix
+ * such as B, KB, MB or GB to a string in order to easily denote the order of
+ * magnitude of the file size. This plug-in allows sorting to take these
+ * indicates of size into account.
+ *
+ * A counterpart type detection plug-in is also available.
+ *
+ * @name File size
+ * @summary Sort abbreviated file sizes correctly (8MB, 4KB, etc)
+ * @author Allan Jardine - datatables.net
+ *
+ * @example
+ * $('#example').DataTable( {
+ * columnDefs: [
+ * { type: 'file-size', targets: 0 }
+ * ]
+ * } );
+ */
+
+jQuery.fn.dataTable.ext.type.order['file-size-pre'] = function ( data ) {
+ var units = data.replace( /[\d\.]/g, '' ).toLowerCase().trim();
+ var multiplier = 1;
+
+ if ( units === 'kb' ) {
+ multiplier = 1000;
+ }
+ else if ( units === 'mb' ) {
+ multiplier = 1000000;
+ }
+ else if ( units === 'gb' ) {
+ multiplier = 1000000000;
+ }
+ else if ( units === 'tb' ) {
+ multiplier = 1000000000000;
+ }
+ else if ( units === 'pb' ) {
+ multiplier = 1000000000000000;
+ }
+ return parseFloat( data ) * multiplier;
+};
+
+jQuery.fn.dataTable.ext.type.order['file-size-percent-pre'] = function ( data
) {
+ var units = data.replace( /[\d\.\(\%\)]/g, '' ).toLowerCase().trim();
+ var multiplier = 1;
+
+ if ( units === 'kb' ) {
+ multiplier = 1000;
+ }
+ else if ( units === 'mb' ) {
+ multiplier = 1000000;
+ }
+ else if ( units === 'gb' ) {
+ multiplier = 1000000000;
+ }
+ else if ( units === 'tb' ) {
+ multiplier = 1000000000000;
+ }
+ else if ( units === 'pb' ) {
+ multiplier = 1000000000000000;
+ }
+ return parseFloat( data ) * multiplier;
{code}
The data is available as 64-bit longs in the JMX output. The template engine
generates the strings.
Just to echo my previous comments -- reparsing the string is error-prone and
should be avoided.
> new namenode UI, lost ability to sort columns in datanode tab
> -------------------------------------------------------------
>
> Key: HDFS-6407
> URL: https://issues.apache.org/jira/browse/HDFS-6407
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.4.0
> Reporter: Nathan Roberts
> Assignee: Benoy Antony
> Priority: Minor
> Attachments: 002-datanodes-sorted-capacityUsed.png,
> 002-datanodes.png, 002-filebrowser.png, 002-snapshots.png,
> HDFS-6407-002.patch, HDFS-6407-003.patch, HDFS-6407.patch,
> browse_directory.png, datanodes.png, snapshots.png
>
>
> old ui supported clicking on column header to sort on that column. The new ui
> seems to have dropped this very useful feature.
> There are a few tables in the Namenode UI to display datanodes information,
> directory listings and snapshots.
> When there are many items in the tables, it is useful to have ability to sort
> on the different columns.
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