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https://issues.apache.org/jira/browse/HADOOP-12258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14695122#comment-14695122
]
Hudson commented on HADOOP-12258:
---------------------------------
FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #286 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/286/])
HADOOP-12258. Need translate java.nio.file.NoSuchFileException to
FileNotFoundException to avoid regression. Contributed by Zhihai Xu. (cnauroth:
rev 6cc8e38db5b26bdd02bc6bc1c9684db2593eec25)
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/rawlocal/TestRawlocalContractGetFileStatus.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/contract/hdfs/TestHDFSContractSetTimes.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/AbstractContractGetFileStatusTest.java
* hadoop-hdfs-project/hadoop-hdfs/src/test/resources/contract/hdfs.xml
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/RawLocalFileSystem.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/fs/contract/hdfs/TestHDFSContractGetFileStatus.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/AbstractContractSetTimesTest.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/rawlocal/TestRawlocalContractSetTimes.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/localfs/TestLocalFSContractSetTimes.java
* hadoop-common-project/hadoop-common/CHANGES.txt
* hadoop-common-project/hadoop-common/src/test/resources/contract/rawlocal.xml
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/localfs/TestLocalFSContractGetFileStatus.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/contract/ContractOptions.java
* hadoop-common-project/hadoop-common/src/test/resources/contract/localfs.xml
> Need translate java.nio.file.NoSuchFileException to FileNotFoundException to
> avoid regression
> ---------------------------------------------------------------------------------------------
>
> Key: HADOOP-12258
> URL: https://issues.apache.org/jira/browse/HADOOP-12258
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Reporter: zhihai xu
> Assignee: zhihai xu
> Priority: Critical
> Fix For: 2.8.0
>
> Attachments: HADOOP-12258.000.patch, HADOOP-12258.001.patch,
> HADOOP-12258.002.patch
>
>
> need translate java.nio.file.NoSuchFileException to FileNotFoundException to
> avoid regression.
> HADOOP-12045 adds nio to support access time, but nio will create
> java.nio.file.NoSuchFileException instead of FileNotFoundException.
> many hadoop codes depend on FileNotFoundException to decide whether a file
> exists. for example {{FileContext.util().exists()}}.
> {code}
> public boolean exists(final Path f) throws AccessControlException,
> UnsupportedFileSystemException, IOException {
> try {
> FileStatus fs = FileContext.this.getFileStatus(f);
> assert fs != null;
> return true;
> } catch (FileNotFoundException e) {
> return false;
> }
> }
> {code}
> same for {{FileSystem#exists}}
> {code}
> public boolean exists(Path f) throws IOException {
> try {
> return getFileStatus(f) != null;
> } catch (FileNotFoundException e) {
> return false;
> }
> }
> {code}
> NoSuchFileException will break these functions.
> Since {{exists}} is one of the most used API in FileSystem, this issue is
> very critical.
> Several test failures for TestDeletionService are caused by this issue:
> https://builds.apache.org/job/PreCommit-YARN-Build/8630/testReport/org.apache.hadoop.yarn.server.nodemanager/TestDeletionService/testRelativeDelete/
> https://builds.apache.org/job/PreCommit-YARN-Build/8632/testReport/org.apache.hadoop.yarn.server.nodemanager/TestDeletionService/testAbsDelete/
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