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Posted to common-issues@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2012/07/09 21:09:35 UTC
[jira] [Commented] (HADOOP-8568) DNS#reverseDns fails on IPv6
addresses
[ https://issues.apache.org/jira/browse/HADOOP-8568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13409741#comment-13409741 ]
Daryn Sharp commented on HADOOP-8568:
-------------------------------------
Since I see hbase in the stacktrace, it's interesting that it's using an unstable interface reserved for hdfs and mapreduce. Should {{NetUtils}} be used instead?
> DNS#reverseDns fails on IPv6 addresses
> --------------------------------------
>
> Key: HADOOP-8568
> URL: https://issues.apache.org/jira/browse/HADOOP-8568
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.0.0-alpha
> Reporter: Eli Collins
> Assignee: Eli Collins
>
> DNS#reverseDns assumes hostIp is a v4 address (4 parts separated by dots), blows up if given a v6 address:
> {noformat}
> Caused by: java.lang.ArrayIndexOutOfBoundsException: 3
> at org.apache.hadoop.net.DNS.reverseDns(DNS.java:79)
> at org.apache.hadoop.net.DNS.getHosts(DNS.java:237)
> at org.apache.hadoop.net.DNS.getDefaultHost(DNS.java:340)
> at org.apache.hadoop.net.DNS.getDefaultHost(DNS.java:358)
> at org.apache.hadoop.net.DNS.getDefaultHost(DNS.java:337)
> at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:235)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:1649)
> {noformat}
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