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https://issues.apache.org/jira/browse/AMBARI-15068?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15150170#comment-15150170
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Himanshu Sharma commented on AMBARI-15068:
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Just to add, this creates problem while trying to setup cluster through Ambari
Blueprints.
> [HDP 2.3] hadoop-env advance config has Java Heap size bug
> -----------------------------------------------------------
>
> Key: AMBARI-15068
> URL: https://issues.apache.org/jira/browse/AMBARI-15068
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: stacks
> Reporter: Himanshu Sharma
>
> With Ambari-2.2, there is an issue with HDP-2.3 whereby the advanced
> hadoop-env default properties have few errant values like :
> "dtnode_heapsize" : "1024"
> "namenode_heapsize" : "1024"
> Instead of above it should be the following as in HDP-2.2 :
> "dtnode_heapsize" : "1024m"
> "namenode_heapsize" : "1024m"
> Note the missing "m" because of which the default heapsize for DataNodes and
> NameNodes is getting initialized as 1KB instead of 1GB. This causes,
> respective JVMs unable to startup and cluster initialization fails.
> I initially thought that the bug would be related to Ambari. But this is
> related to HDP-2.3 as its not visible in HDP-2.2.
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