[
https://issues.apache.org/jira/browse/HDFS-13984?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jiandan Yang updated HDFS-13984:
---------------------------------
Status: Patch Available (was: Open)
> 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
>
>
> 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.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
