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Posted to common-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2015/03/17 21:29:39 UTC
[jira] [Commented] (HADOOP-11724) DistCp throws NPE when the target
directory is root.
[ https://issues.apache.org/jira/browse/HADOOP-11724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14366014#comment-14366014 ]
Hadoop QA commented on HADOOP-11724:
------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12705156/HADOOP-11724.000.patch
against trunk revision 32b4330.
{color:green}+1 @author{color}. The patch does not contain any @author tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include any new or modified tests.
Please justify why no new tests are needed for this patch.
Also please list what manual steps were performed to verify this patch.
{color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings.
{color:green}+1 javadoc{color}. There were no new javadoc warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 2.0.3) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in hadoop-tools/hadoop-distcp.
Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/5960//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/5960//console
This message is automatically generated.
> DistCp throws NPE when the target directory is root.
> ----------------------------------------------------
>
> Key: HADOOP-11724
> URL: https://issues.apache.org/jira/browse/HADOOP-11724
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.6.0
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Priority: Minor
> Attachments: HADOOP-11724.000.patch
>
>
> Distcp throws NPE when the target directory is root. It is due to {{CopyCommitter#cleanupTempFiles}} attempts to delete parent directory of root, which is {{null}}:
> {code}
> $ hadoop distcp pom.xml hdfs://localhost/
> 15/03/17 11:17:44 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
> 15/03/17 11:17:45 INFO tools.DistCp: Input Options: DistCpOptions{atomicCommit=false, syncFolder=false, deleteMissing=false, ignoreFailures=false, maxMaps=20, sslConfigurationFile='null', copyStrategy='uniformsize', sourceFileListing=null, sourcePaths=[pom.xml], targetPath=hdfs://localhost/, targetPathExists=true, preserveRawXattrs=false}
> 15/03/17 11:17:45 INFO Configuration.deprecation: session.id is deprecated. Instead, use dfs.metrics.session-id
> 15/03/17 11:17:45 INFO jvm.JvmMetrics: Initializing JVM Metrics with processName=JobTracker, sessionId=
> 15/03/17 11:17:45 INFO Configuration.deprecation: io.sort.mb is deprecated. Instead, use mapreduce.task.io.sort.mb
> 15/03/17 11:17:45 INFO Configuration.deprecation: io.sort.factor is deprecated. Instead, use mapreduce.task.io.sort.factor
> 15/03/17 11:17:45 INFO jvm.JvmMetrics: Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized
> 15/03/17 11:17:45 INFO mapreduce.JobSubmitter: number of splits:1
> 15/03/17 11:17:45 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_local992233322_0001
> 15/03/17 11:17:46 INFO mapreduce.Job: The url to track the job: http://localhost:8080/
> 15/03/17 11:17:46 INFO tools.DistCp: DistCp job-id: job_local992233322_0001
> 15/03/17 11:17:46 INFO mapreduce.Job: Running job: job_local992233322_0001
> 15/03/17 11:17:46 INFO mapred.LocalJobRunner: OutputCommitter set in config null
> 15/03/17 11:17:46 INFO output.FileOutputCommitter: File Output Committer Algorithm version is 1
> 15/03/17 11:17:46 INFO mapred.LocalJobRunner: OutputCommitter is org.apache.hadoop.tools.mapred.CopyCommitter
> 15/03/17 11:17:46 INFO mapred.LocalJobRunner: Waiting for map tasks
> 15/03/17 11:17:46 INFO mapred.LocalJobRunner: Starting task: attempt_local992233322_0001_m_000000_0
> 15/03/17 11:17:46 INFO output.FileOutputCommitter: File Output Committer Algorithm version is 1
> 15/03/17 11:17:46 INFO util.ProcfsBasedProcessTree: ProcfsBasedProcessTree currently is supported only on Linux.
> 15/03/17 11:17:46 INFO mapred.Task: Using ResourceCalculatorProcessTree : null
> 15/03/17 11:17:46 INFO mapred.MapTask: Processing split: file:/tmp/hadoop/mapred/staging/lei2046334351/.staging/_distcp-1889397390/fileList.seq:0+220
> 15/03/17 11:17:46 INFO output.FileOutputCommitter: File Output Committer Algorithm version is 1
> 15/03/17 11:17:46 INFO mapred.CopyMapper: Copying file:/Users/lei/work/cloudera/s3a_cp_target/pom.xml to hdfs://localhost/pom.xml
> 15/03/17 11:17:46 INFO mapred.CopyMapper: Skipping copy of file:/Users/lei/work/cloudera/s3a_cp_target/pom.xml to hdfs://localhost/pom.xml
> 15/03/17 11:17:46 INFO mapred.LocalJobRunner:
> 15/03/17 11:17:46 INFO mapred.Task: Task:attempt_local992233322_0001_m_000000_0 is done. And is in the process of committing
> 15/03/17 11:17:46 INFO mapred.LocalJobRunner:
> 15/03/17 11:17:46 INFO mapred.Task: Task attempt_local992233322_0001_m_000000_0 is allowed to commit now
> 15/03/17 11:17:46 INFO output.FileOutputCommitter: Saved output of task 'attempt_local992233322_0001_m_000000_0' to file:/tmp/hadoop/mapred/staging/lei2046334351/.staging/_distcp-1889397390/_logs/_temporary/0/task_local992233322_0001_m_000000
> 15/03/17 11:17:46 INFO mapred.LocalJobRunner: Copying file:/Users/lei/work/cloudera/s3a_cp_target/pom.xml to hdfs://localhost/pom.xml
> 15/03/17 11:17:46 INFO mapred.Task: Task 'attempt_local992233322_0001_m_000000_0' done.
> 15/03/17 11:17:46 INFO mapred.LocalJobRunner: Finishing task: attempt_local992233322_0001_m_000000_0
> 15/03/17 11:17:46 INFO mapred.LocalJobRunner: map task executor complete.
> 15/03/17 11:17:46 INFO mapred.CopyCommitter: Remove parent: null for hdfs://localhost/
> 15/03/17 11:17:46 WARN mapred.CopyCommitter: Unable to cleanup temp files
> java.lang.NullPointerException
> at org.apache.hadoop.fs.Path.<init>(Path.java:104)
> at org.apache.hadoop.fs.Path.<init>(Path.java:93)
> at org.apache.hadoop.tools.mapred.CopyCommitter.deleteAttemptTempFiles(CopyCommitter.java:141)
> at org.apache.hadoop.tools.mapred.CopyCommitter.cleanupTempFiles(CopyCommitter.java:130)
> at org.apache.hadoop.tools.mapred.CopyCommitter.commitJob(CopyCommitter.java:83)
> at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:538)
> 15/03/17 11:17:46 INFO mapred.CopyCommitter: Cleaning up temporary work folder: file:/tmp/hadoop/mapred/staging/lei2046334351/.staging/_distcp-1889397390
> 15/03/17 11:17:47 INFO mapreduce.Job: Job job_local992233322_0001 running in uber mode : false
> 15/03/17 11:17:47 INFO mapreduce.Job: map 100% reduce 0%
> 15/03/17 11:17:47 INFO mapreduce.Job: Job job_local992233322_0001 completed successfully
> 15/03/17 11:17:47 INFO mapreduce.Job: Counters: 22
> File System Counters
> FILE: Number of bytes read=103917
> FILE: Number of bytes written=363277
> FILE: Number of read operations=0
> FILE: Number of large read operations=0
> FILE: Number of write operations=0
> HDFS: Number of bytes read=0
> HDFS: Number of bytes written=0
> HDFS: Number of read operations=8
> HDFS: Number of large read operations=0
> HDFS: Number of write operations=0
> Map-Reduce Framework
> Map input records=1
> Map output records=1
> Input split bytes=151
> Spilled Records=0
> Failed Shuffles=0
> Merged Map outputs=0
> GC time elapsed (ms)=14
> Total committed heap usage (bytes)=163577856
> File Input Format Counters
> Bytes Read=252
> File Output Format Counters
> Bytes Written=70
> org.apache.hadoop.tools.mapred.CopyMapper$Counter
> BYTESSKIPPED=23491
> SKIP=1
> {code}
> The distcp task can still success.
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