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Posted to hdfs-issues@hadoop.apache.org by "Erik Krogen (JIRA)" <ji...@apache.org> on 2018/08/31 18:50:00 UTC
[jira] [Updated] (HDFS-13265) MiniDFSCluster should set reasonable
defaults to reduce resource consumption
[ https://issues.apache.org/jira/browse/HDFS-13265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Erik Krogen updated HDFS-13265:
-------------------------------
Attachment: HDFS-13265-branch-2.001.patch
> MiniDFSCluster should set reasonable defaults to reduce resource consumption
> ----------------------------------------------------------------------------
>
> Key: HDFS-13265
> URL: https://issues.apache.org/jira/browse/HDFS-13265
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode, namenode, test
> Reporter: Erik Krogen
> Assignee: Erik Krogen
> Priority: Major
> Attachments: HDFS-13265-branch-2.000.patch, HDFS-13265-branch-2.000.patch, HDFS-13265-branch-2.001.patch, HDFS-13265.000.patch, HDFS-13265.001.patch, HDFS-13265.002.patch, TestMiniDFSClusterThreads.java
>
>
> MiniDFSCluster takes its defaults from {{DFSConfigKeys}} defaults, but many of these are not suitable for a unit test environment. For example, the default handler thread count of 10 is definitely more than necessary for (almost?) any unit test. We should set reasonable, lower defaults unless a test specifically requires more.
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