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Posted to hdfs-issues@hadoop.apache.org by "BELUGA BEHR (JIRA)" <ji...@apache.org> on 2018/08/09 13:52:00 UTC
[jira] [Updated] (HDFS-13812) Update Docs on Caching - Default
Refresh Value
[ https://issues.apache.org/jira/browse/HDFS-13812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
BELUGA BEHR updated HDFS-13812:
-------------------------------
Summary: Update Docs on Caching - Default Refresh Value (was: Update Docs on Caching)
> Update Docs on Caching - Default Refresh Value
> ----------------------------------------------
>
> Key: HDFS-13812
> URL: https://issues.apache.org/jira/browse/HDFS-13812
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: documentation
> Affects Versions: 2.9.1
> Reporter: BELUGA BEHR
> Priority: Trivial
>
> {quote}
> dfs.namenode.path.based.cache.refresh.interval.ms
> The NameNode will use this as the amount of milliseconds between subsequent path cache rescans. This calculates the blocks to cache and each DataNode containing a replica of the block that should cache it.
> By default, this parameter is set to 300000, which is five minutes.
> {quote}
> [https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/CentralizedCacheManagement.html]
> However, this default value was change in [HDFS-6106] to 30 seconds. Please update docs.
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