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https://issues.apache.org/jira/browse/HDFS-9801?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15145284#comment-15145284
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Hudson commented on HDFS-9801:
------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #9298 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/9298/])
HDFS-9801. ReconfigurableBase should update the cached configuration. (arp: rev
1de1641f17f890059e85e57304ce33c7070a08de)
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeHotSwapVolumes.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeVolumeFailure.java
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Reconfigurable.java
*
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/conf/TestReconfiguration.java
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDataNodeVolumeFailureReporting.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/ReconfigurableBase.java
> ReconfigurableBase should update the cached configuration
> ---------------------------------------------------------
>
> Key: HDFS-9801
> URL: https://issues.apache.org/jira/browse/HDFS-9801
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.8.0
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Fix For: 2.8.0
>
> Attachments: HADOOP-12476.02.patch, HADOOP-12746.01.patch,
> HADOOP-12746.03.patch, HADOOP-12746.04.patch
>
>
> {{ReconfigurableBase#startReconfigurationTask}} does not update its cached
> configuration after a property is reconfigured. This means that configuration
> values queried via {{getConf().get(...)}} can be outdated. One way to fix it
> is {{ReconfigurableBase#reconfigurePropertyImpl}} returns the new effective
> value of the config setting and caller i.e. ReconfigurableBase will use it to
> update the configuration.
> See discussion on HDFS-7035 for more background.
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