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https://issues.apache.org/jira/browse/HDFS-17327?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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huangzhaobo updated HDFS-17327:
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Description:
1. If it is a null value, after reconfig, it will take effect as the current
system value and not necessarily the default value.
2. {{ReconfigurableBase#reconfigureProperty}} judges the condition incorrectly,
When the effectValue is not null, the system value needs to be changed.
> Fix reconfig disk balancer parameters for datanode.
> ---------------------------------------------------
>
> Key: HDFS-17327
> URL: https://issues.apache.org/jira/browse/HDFS-17327
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: huangzhaobo
> Assignee: huangzhaobo
> Priority: Blocker
> Labels: pull-request-available
>
> 1. If it is a null value, after reconfig, it will take effect as the current
> system value and not necessarily the default value.
> 2. {{ReconfigurableBase#reconfigureProperty}} judges the condition
> incorrectly, When the effectValue is not null, the system value needs to be
> changed.
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