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https://issues.apache.org/jira/browse/DRILL-6467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16502179#comment-16502179
]
ASF GitHub Bot commented on DRILL-6467:
---------------------------------------
kkhatua opened a new pull request #1305: DRILL-6467: Percentage usage of memory
is reported as zero by the WebUI
URL: https://github.com/apache/drill/pull/1305
The memory reported as a percentage is incorrectly reported as 0%,
irrespective of the actual usage.
This is because of a snippet in the Javascript that computes the percentage:
```javascript
//Compute Usage
function computeMemUsage(used, max) {
let percent = 0;
if ( max > 0) {
let percent = Math.round((100 * used / max), 2);
}
let usage = bytesInGB(used, 2) + "GB (" + Math.max(0, percent) +
"% of "+ bytesInGB(max, 2) +"GB)";
return usage;
}
```
Turns out, the `let` keyword creates a new `percent` variable within the
scope of the `if (max > 0) { .. }` block, so the original variable never got
updated. The fix was to simply remove the `let` preceding the percentage
computation.
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> Percentage usage of memory is reported as zero by the WebUI
> -----------------------------------------------------------
>
> Key: DRILL-6467
> URL: https://issues.apache.org/jira/browse/DRILL-6467
> Project: Apache Drill
> Issue Type: Bug
> Components: Web Server
> Affects Versions: 1.14.0
> Reporter: Kunal Khatua
> Assignee: Kunal Khatua
> Priority: Trivial
> Fix For: 1.14.0
>
> Attachments: image-2018-06-05-10-28-08-067.png
>
> Original Estimate: 0.5h
> Remaining Estimate: 0.5h
>
> The memory reported as a percentage is incorrectly reported as 0%,
> irrespective of the actual usage.
> !image-2018-06-05-10-28-08-067.png!
>
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