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https://issues.apache.org/jira/browse/HDFS-2592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13183777#comment-13183777
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Uma Maheswara Rao G commented on HDFS-2592:
-------------------------------------------
Hi Todd, Thanks for the care on this issue. Actually I stated work on HDFS-2767
also as part of this issue. Just updated my work in HDFS-2767. With that
change, Balancer can work with failover now.
{noformat}
2012-01-11 06:48:43,791 INFO balancer.Balancer (Balancer.java:run(1390)) - p
= Balancer.Parameters[BalancingPolicy.Node, threshold=10.0]
Time Stamp Iteration# Bytes Already Moved Bytes Left To Move
Bytes Being Moved
2012-01-11 06:48:43,891 WARN retry.RetryInvocationHandler
(RetryInvocationHandler.java:invoke(105)) - Exception while invoking create of
class org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB
after 0 fail over attempts. Trying to fail over immediately.
............
...........
2012-01-11 06:48:58,857 WARN retry.RetryInvocationHandler
(RetryInvocationHandler.java:invoke(105)) - Exception while invoking getBlocks
of class org.apache.hadoop.hdfs.protocolPB.NamenodeProtocolTranslatorPB after 0
fail over attempts. Trying to fail over immediately.
{noformat}
> HA: Balancer support for HA namenodes
> -------------------------------------
>
> Key: HDFS-2592
> URL: https://issues.apache.org/jira/browse/HDFS-2592
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: balancer, ha
> Affects Versions: HA branch (HDFS-1623)
> Reporter: Todd Lipcon
> Assignee: Uma Maheswara Rao G
> Attachments: HDFS-2592.patch, HDFS-2592.patch
>
>
> The balancer currently interacts directly with namenode InetSocketAddresses
> and makes its own IPC proxies. We need to integrate it with HA so that it
> uses the same client failover infrastructure.
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