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https://issues.apache.org/jira/browse/HDFS-5055?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13725877#comment-13725877
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Allen Wittenauer commented on HDFS-5055:
----------------------------------------
On our machines, we create a VIP using a BGP loopback address. We bind Hadoop
services to this VIP. In the case of the NN trying to reconnect back to the
2NN during edits merge, it continues to use the 2NN's hostname address:
In hdfs-site.xml:
{code}
<property>
<name>dfs.namenode.secondary.http-address</name>
<value>eat1-fiasconn02.grid.linkedin.com:50090</value>
</property>
{code}
On the 2nn itself:
{code}
[awittena@eat1-hcl4054 ~]$ netstat -a | grep 50090
tcp 0 0 eat1-fiasconn02.grid.:50090 *:*
LISTEN
[awittena@eat1-hcl4054 ~]$
{code}
yet in the HDFS NN log...
{code}
2013-07-31 23:53:30,916 INFO
org.apache.hadoop.hdfs.server.namenode.TransferFsImage: Opening connection to
http://eat1-hcl4054.grid.linkedin.com:50090/getimage?getimage=1&txid=180564&storageInfo=-47:2073800469:1375222008066:CID-1289fa67-537a-4c27-9bba-94770b94644d
2013-07-31 23:53:30,917 ERROR org.apache.hadoop.security.UserGroupInformation:
PriviledgedActionException
as:hdfs/eat1-fiasconn01.grid.linkedin....@grid.linkedin.com (auth:KERBEROS)
cause:java.net.ConnectException: Connection refused
2013-07-31 23:53:30,919 WARN org.mortbay.log: /getimage: java.io.IOException:
GetImage failed. java.net.ConnectException: Connection refused
{code}
This is a regression from 1.x behavior.
> nn<->2nn ignore dfs.namenode.secondary.http-address
> ---------------------------------------------------
>
> Key: HDFS-5055
> URL: https://issues.apache.org/jira/browse/HDFS-5055
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.1.0-beta
> Reporter: Allen Wittenauer
> Priority: Blocker
>
> The primary namenode attempts to connect back to (incoming hostname):port
> regardless of how dfs.namenode.secondary.http-address is configured.
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