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https://issues.apache.org/jira/browse/HADOOP-13593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15483433#comment-15483433
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Yuanbo Liu edited comment on HADOOP-13593 at 9/12/16 9:39 AM:
--------------------------------------------------------------
I find that in {{FileUtil#compareFs}}, it uses
"InetAddress.getByName(srcHost).getCanonicalHostName()" to get the host name of
Swift file system. In fact "testhadoop.softlayer" is an alias name of Swift,
it's impossible to use "getCanonicalHostName" to get the real host name. I
propose to delete it and upload v1 patch for this issue.
See the full stack info here:
{code}
16/09/08 20:59:36 WARN security.UserGroupInformation: Exception encountered
while running the renewal command. Aborting renew thread. ExitCodeException
exitCode=1: kinit: Ticket expired while renewing credentials
16/09/08 20:59:37 INFO tools.DistCp: Input Options:
DistCpOptions{atomicCommit=true, syncFolder=false, deleteMissing=false,
ignoreFailures=false, maxMaps=20, sslConfigurationFile='null',
copyStrategy='uniformsize', sourceFileListing=null, sourcePaths=[/tmp/100M],
targetPath=swift://testhadoop.softlayer/tmp, targetPathExists=true,
preserveRawXattrs=false}
16/09/08 20:59:38 INFO impl.TimelineClientImpl: Timeline service address:
https://wangxjrhel672.fyre.ibm.com:8190/ws/v1/timeline/
16/09/08 20:59:39 ERROR tools.DistCp: Exception encountered
java.lang.IllegalArgumentException: Work path
swift://testhadoop.softlayer/._WIP_tmp1072690165 and target path
swift://testhadoop.softlayer/tmp are in different file system
at org.apache.hadoop.tools.DistCp.configureOutputFormat(DistCp.java:351)
at org.apache.hadoop.tools.DistCp.createJob(DistCp.java:237)
at org.apache.hadoop.tools.DistCp.createAndSubmitJob(DistCp.java:174)
at org.apache.hadoop.tools.DistCp.execute(DistCp.java:153)
at org.apache.hadoop.tools.DistCp.run(DistCp.java:126)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
{code}
was (Author: yuanbo):
I find that in {{FileUtil#compareFs}}, it uses
"InetAddress.getByName(srcHost).getCanonicalHostName()" to get the host name of
Swift file system. In fact "testhadoop.softlayer" is an alias name of Swift,
it's impossible to use "getCanonicalHostName" to get the real host name. I
propose to delete it and upload v1 patch for this issue.
> `hadoop distcp -atomic` invokes improper host check while copying data from
> HDFS to Swift
> -----------------------------------------------------------------------------------------
>
> Key: HADOOP-13593
> URL: https://issues.apache.org/jira/browse/HADOOP-13593
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Yuanbo Liu
> Attachments: HADOOP-13593.001.patch, HADOOP-13593.002.patch
>
>
> While copying data from HDFS to Swift by using `hadoop distcp -atomic`, for
> example:
> {code}
> hadoop distcp -atomic /tmp/100M swift://testhadoop.softlayer//tmp
> {code}
> it throws
> {code}
> java.lang.IllegalArgumentException: Work path
> swift://testhadoop.softlayer/._WIP_tmp546958075 and target path
> swift://testhadoop.softlayer/tmp are in different file system
> at org.apache.hadoop.tools.DistCp.configureOutputFormat(DistCp.java:351)
> .....
> {code}
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