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https://issues.apache.org/jira/browse/HDFS-5215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14569076#comment-14569076
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Kihwal Lee commented on HDFS-5215:
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I've cherry-picked the change to branch-2.7.
> dfs.datanode.du.reserved is not considered while computing available space
> --------------------------------------------------------------------------
>
> Key: HDFS-5215
> URL: https://issues.apache.org/jira/browse/HDFS-5215
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 3.0.0, 2.7.0
> Reporter: Brahma Reddy Battula
> Assignee: Brahma Reddy Battula
> Fix For: 2.7.1
>
> Attachments: HDFS-5215-002.patch, HDFS-5215-003.patch,
> HDFS-5215-004.patch, HDFS-5215-005.patch, HDFS-5215.patch
>
>
> {code}public long getAvailable() throws IOException {
> long remaining = getCapacity()-getDfsUsed();
> long available = usage.getAvailable();
> if (remaining > available) {
> remaining = available;
> }
> return (remaining > 0) ? remaining : 0;
> }
> {code}
> Here we are not considering the reserved space while getting the Available
> Space.
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