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https://issues.apache.org/jira/browse/HDFS-13984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16871411#comment-16871411
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Hadoop QA commented on HDFS-13984:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 6s{color}
| {color:red} HDFS-13984 does not apply to trunk. Rebase required? Wrong
Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-13984 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12947190/HDFS-13984.003.patch |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/27059/console |
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This message was automatically generated.
> getFileInfo of libhdfs call NameNode#getFileStatus twice
> --------------------------------------------------------
>
> Key: HDFS-13984
> URL: https://issues.apache.org/jira/browse/HDFS-13984
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: libhdfs
> Reporter: Jiandan Yang
> Assignee: Jiandan Yang
> Priority: Major
> Attachments: HDFS-13984.001.patch, HDFS-13984.002.patch,
> HDFS-13984.003.patch
>
>
> getFileInfo in hdfs.c calls *FileSystem#exists* first, then calls
> *FileSystem#getFileStatus*.
> *FileSystem#exists* also call *FileSystem#getFileStatus*, just as follows:
> {code:java}
> public boolean exists(Path f) throws IOException {
> try {
> return getFileStatus(f) != null;
> } catch (FileNotFoundException e) {
> return false;
> }
> }
> {code}
> and finally this leads to call NameNodeRpcServer#getFileInfo twice.
> Actually we can implement by calling once.
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