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https://issues.apache.org/jira/browse/MAPREDUCE-6607?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Akira AJISAKA updated MAPREDUCE-6607:
-------------------------------------
Release Note: Before this fix, the files in .staging directory are always
preserved when mapreduce.task.files.preserve.filepattern is set. After this
fix, the files in .staging directory are preserved if their names match the
regex pattern specified by mapreduce.task.files.preserve.filepattern.
Summary: Enable regex pattern matching when
mapreduce.task.files.preserve.filepattern is set (was: .staging dir is not
cleaned up if mapreduce.task.files.preserve.failedtask or
mapreduce.task.files.preserve.filepattern are set)
> Enable regex pattern matching when mapreduce.task.files.preserve.filepattern
> is set
> -----------------------------------------------------------------------------------
>
> Key: MAPREDUCE-6607
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6607
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: applicationmaster
> Affects Versions: 2.7.1
> Reporter: Maysam Yabandeh
> Assignee: Kai Sasaki
> Priority: Minor
> Attachments: MAPREDUCE-6607-branch-2.01.patch,
> MAPREDUCE-6607-branch-2.02.patch, MAPREDUCE-6607.01.patch,
> MAPREDUCE-6607.02.patch, MAPREDUCE-6607.03.patch, MAPREDUCE-6607.04.patch,
> MAPREDUCE-6607.05.patch, MAPREDUCE-6607.06.patch
>
>
> if either of the following configs are set, then .staging dir is not cleaned
> up:
> * mapreduce.task.files.preserve.failedtask
> * mapreduce.task.files.preserve.filepattern
> The former was supposed to keep only .staging of failed tasks and the latter
> was supposed to be used only if that task name matches against the specified
> regular expression.
> {code}
> protected boolean keepJobFiles(JobConf conf) {
> return (conf.getKeepTaskFilesPattern() != null || conf
> .getKeepFailedTaskFiles());
> }
> {code}
> {code}
> public void cleanupStagingDir() throws IOException {
> /* make sure we clean the staging files */
> String jobTempDir = null;
> FileSystem fs = getFileSystem(getConfig());
> try {
> if (!keepJobFiles(new JobConf(getConfig()))) {
> jobTempDir = getConfig().get(MRJobConfig.MAPREDUCE_JOB_DIR);
> if (jobTempDir == null) {
> LOG.warn("Job Staging directory is null");
> return;
> }
> Path jobTempDirPath = new Path(jobTempDir);
> LOG.info("Deleting staging directory " +
> FileSystem.getDefaultUri(getConfig()) +
> " " + jobTempDir);
> fs.delete(jobTempDirPath, true);
> }
> } catch(IOException io) {
> LOG.error("Failed to cleanup staging dir " + jobTempDir, io);
> }
> }
> {code}
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