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https://issues.apache.org/jira/browse/HDFS-15119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17023023#comment-17023023
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Hudson commented on HDFS-15119:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #17897 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/17897/])
HDFS-15119. Allow expiration of cached locations in DFSInputStream. (kihwal:
rev d10f77e3c91225f86ed9c0f0e6a9adf2e1434674)
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/client/HdfsClientConfigKeys.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSClient.java
* (add)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSInputStreamBlockLocations.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSInputStream.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/client/impl/DfsClientConf.java
> Allow expiration of cached locations in DFSInputStream
> ------------------------------------------------------
>
> Key: HDFS-15119
> URL: https://issues.apache.org/jira/browse/HDFS-15119
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: dfsclient
> Reporter: Ahmed Hussein
> Assignee: Ahmed Hussein
> Priority: Minor
> Attachments: HDFS-15119.001.patch, HDFS-15119.002.patch,
> HDFS-15119.003.patch
>
>
> Staleness and other transient conditions can affect reads for a long time
> since the block locations may not be re-fetched. It makes sense to make
> cached locations to expire.
> For example, we may not take advantage of local-reads since the nodes are
> blacklisted and have not been updated.
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