[
https://issues.apache.org/jira/browse/HADOOP-17306?focusedWorklogId=502006&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-502006
]
ASF GitHub Bot logged work on HADOOP-17306:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 19/Oct/20 05:30
Start Date: 19/Oct/20 05:30
Worklog Time Spent: 10m
Work Description: vinayakumarb commented on a change in pull request
#2387:
URL: https://github.com/apache/hadoop/pull/2387#discussion_r507475468
##########
File path:
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/TestRawLocalFileSystemContract.java
##########
@@ -203,4 +203,27 @@ public void testPermission() throws Exception {
}
}
+ @Test
+ public void testMTimeAtime() throws IOException {
+ RawLocalFileSystem.setUseDeprecatedFileStatus(true);
+ try {
+ Path testDir = getTestBaseDir();
+ String testFilename = "testmtime";
+ Path path = new Path(testDir, testFilename);
+ Path file = new Path(path, "file");
+ fs.create(file);
+ long now = System.currentTimeMillis();
+ long mtime = (now % 1000 == 0) ? now + 1 : now;
+ long atime = (now % 1000 == 0) ? now + 2 : now;
+ fs.setTimes(file, mtime, atime);
+ FileStatus fileStatus = fs.getFileStatus(file);
+ if (!Shell.MAC) {
+ //HADOOP-17306 ; JDK-8177809 not fixed in MacOs
+ assertEquals(mtime, fileStatus.getModificationTime());
Review comment:
Sure. Thanks for details @aajisaka
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Issue Time Tracking
-------------------
Worklog Id: (was: 502006)
Time Spent: 1h 10m (was: 1h)
> RawLocalFileSystem's lastModifiedTime() looses milli seconds in JDK < 10.b09
> ----------------------------------------------------------------------------
>
> Key: HADOOP-17306
> URL: https://issues.apache.org/jira/browse/HADOOP-17306
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Reporter: Vinayakumar B
> Assignee: Vinayakumar B
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> RawLocalFileSystem's FileStatus uses {{File.lastModified()}} api from JDK.
> This api looses milliseconds due to JDK bug.
> [https://bugs.java.com/bugdatabase/view_bug.do?bug_id=8177809]
> This bug fixed in JDK 10 b09 onwards and still exists in JDK 8 which is still
> being used in many productions.
> Apparently, {{Files.getLastModifiedTime()}} from java's nio package returns
> correct time.
> Use {{Files.getLastModifiedTime()}} instead of {{File.lastModified}} as
> workaround.
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