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https://issues.apache.org/jira/browse/HADOOP-8775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aaron T. Myers updated HADOOP-8775:
-----------------------------------
Fix Version/s: (was: 2.0.1-alpha)
2.2.0-alpha
> MR2 distcp permits non-positive value to -bandwidth option which causes job
> never to complete
> ---------------------------------------------------------------------------------------------
>
> Key: HADOOP-8775
> URL: https://issues.apache.org/jira/browse/HADOOP-8775
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.0.0-alpha
> Reporter: Sandy Ryza
> Assignee: Sandy Ryza
> Fix For: 2.2.0-alpha
>
> Attachments: diff2.txt, HADOOP-8775.patch
>
>
> The likelihood that someone would want to enter a non-positive value for
> -bandwidth seems really low. However, the job would never complete if a
> non-positive value was specified. It'd just get stuck at map 100%. Luckily, a
> positive value would always lead to the job completing.
> {noformat}
> bash-4.1$ hadoop distcp -bandwidth 0
> hdfs://c1204.hal.cloudera.com:17020/user/hdfs/in-dir
> hdfs://c1204.hal.cloudera.com:17020/user/hdfs/in-dir58
> hadoop distcp -bandwidth 0
> hdfs://c1204.hal.cloudera.com:17020/user/hdfs/in-dir
> hdfs://c1204.hal.cloudera.com:17020/user/hdfs/in-dir58
> 12/05/23 15:53:01 INFO tools.DistCp: Input Options:
> DistCpOptions{atomicCommit=false, syncFolder=false, deleteMissing=false,
> ignoreFailures=false, maxMaps=20, sslConfigurationFile='null',
> copyStrategy='uniformsiz\
> e', sourceFileListing=null,
> sourcePaths=[hdfs://c1204.hal.cloudera.com:17020/user/hdfs/in-dir],
> targetPath=hdfs://c1204.hal.cloudera.com:17020/user/hdfs/in-dir58}
> 12/05/23 15:53:02 WARN conf.Configuration: io.sort.mb is deprecated. Instead,
> use mapreduce.task.io.sort.mb
> 12/05/23 15:53:02 WARN conf.Configuration: io.sort.factor is deprecated.
> Instead, use mapreduce.task.io.sort.factor
> 12/05/23 15:53:02 INFO util.NativeCodeLoader: Loaded the native-hadoop library
> 12/05/23 15:53:03 INFO mapreduce.JobSubmitter: number of splits:3
> 12/05/23 15:53:04 WARN conf.Configuration: mapred.jar is deprecated. Instead,
> use mapreduce.job.jar
> 12/05/23 15:53:04 WARN conf.Configuration:
> mapred.map.tasks.speculative.execution is deprecated. Instead, use
> mapreduce.map.speculative
> 12/05/23 15:53:04 WARN conf.Configuration: mapred.reduce.tasks is deprecated.
> Instead, use mapreduce.job.reduces
> 12/05/23 15:53:04 WARN conf.Configuration: mapred.mapoutput.value.class is
> deprecated. Instead, use mapreduce.map.output.value.class
> 12/05/23 15:53:04 WARN conf.Configuration: mapreduce.map.class is deprecated.
> Instead, use mapreduce.job.map.class
> 12/05/23 15:53:04 WARN conf.Configuration: mapred.job.name is deprecated.
> Instead, use mapreduce.job.name
> 12/05/23 15:53:04 WARN conf.Configuration: mapreduce.inputformat.class is
> deprecated. Instead, use mapreduce.job.inputformat.class
> 12/05/23 15:53:04 WARN conf.Configuration: mapred.output.dir is deprecated.
> Instead, use mapreduce.output.fileoutputformat.outputdir
> 12/05/23 15:53:04 WARN conf.Configuration: mapreduce.outputformat.class is
> deprecated. Instead, use mapreduce.job.outputformat.class
> 12/05/23 15:53:04 WARN conf.Configuration: mapred.map.tasks is deprecated.
> Instead, use mapreduce.job.maps
> 12/05/23 15:53:04 WARN conf.Configuration: mapred.mapoutput.key.class is
> deprecated. Instead, use mapreduce.map.output.key.class
> 12/05/23 15:53:04 WARN conf.Configuration: mapred.working.dir is deprecated.
> Instead, use mapreduce.job.working.dir
> 12/05/23 15:53:04 INFO mapred.ResourceMgrDelegate: Submitted application
> application_1337808305464_0014 to ResourceManager at
> c1204.hal.cloudera.com/172.29.98.195:8040
> 12/05/23 15:53:04 INFO mapreduce.Job: The url to track the job:
> http://auto0:8088/proxy/application_1337808305464_0014/
> 12/05/23 15:53:04 INFO tools.DistCp: DistCp job-id: job_1337808305464_0014
> 12/05/23 15:53:04 INFO mapreduce.Job: Running job: job_1337808305464_0014
> 12/05/23 15:53:09 INFO mapreduce.Job: Job job_1337808305464_0014 running in
> uber mode : false
> 12/05/23 15:53:09 INFO mapreduce.Job: map 0% reduce 0%
> 12/05/23 15:53:14 INFO mapreduce.Job: map 33% reduce 0%
> 12/05/23 15:53:19 INFO mapreduce.Job: map 100% reduce 0%
> {noformat}
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