akiyamaneko commented on a change in pull request #30030:
URL: https://github.com/apache/spark/pull/30030#discussion_r508747975
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File path: core/src/main/resources/org/apache/spark/ui/static/utils.js
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@@ -39,7 +39,7 @@ function formatDuration(milliseconds) {
function formatBytes(bytes, type) {
if (type !== 'display') return bytes;
- if (bytes == 0) return '0.0 B';
+ if (bytes <= 0) return '0.0 B';
Review comment:
@gengliangwang sorry for the delay,I had tried to reproduce the problem
When many tasks failed in a stage, the `shuffleTotalReads` metric can be
-1L
sometime([storeTypes.scala](https://github.com/apache/spark/blob/46ad325e56abd95c0ffdbe64aad78582da8c725d/core/src/main/scala/org/apache/spark/status/storeTypes.scala#L344))
the code:
[AppStatusStore#taskSummary](https://github.com/apache/spark/blob/46ad325e56abd95c0ffdbe64aad78582da8c725d/core/src/main/scala/org/apache/spark/status/AppStatusStore.scala#L165)
may has bug, It doesn't consider negative values:
[AppStatusStore.toValues](https://github.com/apache/spark/blob/46ad325e56abd95c0ffdbe64aad78582da8c725d/core/src/main/scala/org/apache/spark/status/AppStatusStore.scala#L206)
and
[AppStatusStore.scanTasks](https://github.com/apache/spark/blob/46ad325e56abd95c0ffdbe64aad78582da8c725d/core/src/main/scala/org/apache/spark/status/AppStatusStore.scala#L267)
do you think is it necessary to ensure the non-negative metric value ?
I have found the
restAPI:`http://host:18081/api/v1/applications/application_Id/stages/stageId/attemptId/taskSummary`
can return negative metrics values like `shuffleReadMetrics.readBytes`,
`totalBlocksFetched`.
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