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https://issues.apache.org/jira/browse/HDFS-13959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16663239#comment-16663239
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Surendra Singh Lilhore edited comment on HDFS-13959 at 10/25/18 4:57 AM:
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Thanks [~ayushtkn] for patch.
minor comments
>>This comment is not more reuired.
{code:java}
/**
* Use host names that can be resolved (
* InetSocketAddress#isUnresolved == false). Otherwise,
* CombinedHostFileManager won't allow those hosts.
*/
static final String[] hosts =
{"host1", "host2", "host3", "host4",
"host5", "host6"};{code}
>>Pls add here comment why the IP address used instead of hostname. May be
>>same comment you can use here.
{code:java}
+ datanodes[i].setHostName(datanodeID.getIpAddr());{code}
was (Author: surendrasingh):
Thanks [~ayushtkn] for patch.
minor comments
# This comment is not more reuired.
{code:java}
/**
* Use host names that can be resolved (
* InetSocketAddress#isUnresolved == false). Otherwise,
* CombinedHostFileManager won't allow those hosts.
*/
static final String[] hosts =
{"host1", "host2", "host3", "host4",
"host5", "host6"};{code}
# Pls add here comment why the IP address used instead of hostname. May be
same comment you can use here.
{code:java}
+ datanodes[i].setHostName(datanodeID.getIpAddr());{code}
> TestUpgradeDomainBlockPlacementPolicy is flaky
> ----------------------------------------------
>
> Key: HDFS-13959
> URL: https://issues.apache.org/jira/browse/HDFS-13959
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Attachments: HDFS-13959-01.patch
>
>
> The procedure followed for rack mapping is ambiguous.
> Due to same host name the mapping of nodes to rack was not as per our
> requirement.
> In slower systems all nodes gets mapped to the latter rack2 and in little
> fast system one node gets mapped to rack1. Thus leading to test failure since
> now the rack fault tolerance comes into existence.Which can not be satisfied
> by this ambiguous mapping.
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