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https://issues.apache.org/jira/browse/HDFS-12068?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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steven-wugang updated HDFS-12068:
---------------------------------
Attachment: HDFS-12068.patch
> Modify judgment condition in function computeVolumeDataDensity,otherwise
> maybe divided by zero
> ----------------------------------------------------------------------------------------------
>
> Key: HDFS-12068
> URL: https://issues.apache.org/jira/browse/HDFS-12068
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: steven-wugang
> Assignee: steven-wugang
> Attachments: HDFS-12068.patch
>
>
> IN function computeVolumeDataDensity,there is a piece of code,as follow:
> public void computeVolumeDataDensity() {
> ...
> if (volume.computeEffectiveCapacity() < 0) {
> skipMisConfiguredVolume(volume);
> continue;
> }
> ....
> double dfsUsedRatio =
> truncateDecimals(volume.getUsed() /
> (double) volume.computeEffectiveCapacity());
>
> ....
> }
> Did not filter out the case that volume.computeEffectiveCapacity() is
> zero，maybe divided by zero behind.
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