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https://issues.apache.org/jira/browse/HADOOP-4743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Masahiko Higashiyama updated HADOOP-4743:
-----------------------------------------
Component/s: mapred
Priority: Trivial (was: Major)
Affects Version/s: 0.19.0
> JobTracker TaskInitialization failure on cygwin
> -----------------------------------------------
>
> Key: HADOOP-4743
> URL: https://issues.apache.org/jira/browse/HADOOP-4743
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.19.0
> Environment: Hadoop 0.19.0 on Cygwin (Windows Vista Ultimate) and
> Ubuntu Linux 8.10 cluster
> Reporter: Masahiko Higashiyama
> Priority: Trivial
>
> I wanted to test new release and have been trying to queue new job.
> But it didn't work.
> This error is found in JobTracker's log.
> ========================================
> 2008-11-29 21:39:00,276 ERROR
> org.apache.hadoop.mapred.EagerTaskInitializationListener: Job initialization
> failed:
> java.util.regex.PatternSyntaxException: Illegal/unsupported escape sequence
> near index 47
> Leibnitz_[0-9]+_job_200811292137_0001_leibnitz\hadoop_\Qwordcount\E+
> ^
> at java.util.regex.Pattern.error(Unknown Source)
> at java.util.regex.Pattern.escape(Unknown Source)
> at java.util.regex.Pattern.atom(Unknown Source)
> at java.util.regex.Pattern.sequence(Unknown Source)
> at java.util.regex.Pattern.expr(Unknown Source)
> at java.util.regex.Pattern.compile(Unknown Source)
> at java.util.regex.Pattern.<init>(Unknown Source)
> at java.util.regex.Pattern.compile(Unknown Source)
> at
> org.apache.hadoop.mapred.JobHistory$JobInfo.getJobHistoryFileName(JobHistory.java:638)
> at
> org.apache.hadoop.mapred.JobHistory$JobInfo.logSubmitted(JobHistory.java:803)
> at
> org.apache.hadoop.mapred.JobInProgress.initTasks(JobInProgress.java:353)
> at
> org.apache.hadoop.mapred.EagerTaskInitializationListener$JobInitThread.run(EagerTaskInitializationListener.java:55)
> at java.lang.Thread.run(Unknown Source)
> ========================================
> leibnitz is Jobtracker's hostname and hadoop is username.
> Then I wanted to fix it and created this patch.
> ========================================
> --- src/mapred/org/apache/hadoop/mapred/JobHistory.java (revision
> 721683)
> +++ src/mapred/org/apache/hadoop/mapred/JobHistory.java (working copy)
> @@ -95,6 +95,10 @@
> private static final String SECONDARY_FILE_SUFFIX = ".recover";
> private static long jobHistoryBlockSize = 0;
> private static String jobtrackerHostname;
> + /** Set to true on Windows platforms */
> + public static final boolean WINDOWS /* borrowed from Path.WINDOWS */
> + = System.getProperty("os.name").startsWith("Windows");
> +
> /**
> * Record types are identifiers for each line of log in history files.
> * A record type appears as the first token in a single line of log.
> @@ -634,6 +638,9 @@
>
> jobName = escapeRegexChars( jobName );
>
> + if (WINDOWS) {
> + user = escapeRegexChars( user );
> + }
> // Make the pattern matching the job's history file
> final Pattern historyFilePattern =
> Pattern.compile(jobtrackerHostname + "_" + "[0-9]+" + "_"
> ========================================
> Hadoop Core patched this seems to work well.
> Maybe my environment is wrong. But if this is bug, please fix.
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