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https://issues.apache.org/jira/browse/HDFS-13598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yiqun Lin updated HDFS-13598:
-----------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 3.2.0
Status: Resolved (was: Patch Available)
Committed to trunk. Thanks [~gabor.bota] for the contribution.
> Reduce unnecessary byte-to-string transform operation in INodesInPath#toString
> ------------------------------------------------------------------------------
>
> Key: HDFS-13598
> URL: https://issues.apache.org/jira/browse/HDFS-13598
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 3.1.0
> Reporter: Yiqun Lin
> Assignee: Gabor Bota
> Priority: Minor
> Fix For: 3.2.0
>
> Attachments: HDFS-13598.001.patch
>
>
> Every time we invoke {{INodesInPath#toString()}}, we will trigger one time
> byte-to-string transform operation.
> {code:java}
> private String toString(boolean vaildateObject) {
> if (vaildateObject) {
> validate();
> }
> final StringBuilder b = new StringBuilder(getClass().getSimpleName())
> .append(": path = ").append(DFSUtil.byteArray2PathString(path))
> .append("\n inodes = ");
> ...
> }
> {code}
> But actually we only need to do at most one time. In {{INodesInPath}}, it has
> defined one String type variable named {{pathname}} for storing the path
> string value. Here we can use {{getPath()}} to replace
> {{DFSUtil.byteArray2PathString(path)}}.
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