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https://issues.apache.org/jira/browse/HDFS-15452?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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jianghua zhu reassigned HDFS-15452:
-----------------------------------
Assignee: jianghua zhu
> Dynamically initialize the capacity of BlocksMap
> ------------------------------------------------
>
> Key: HDFS-15452
> URL: https://issues.apache.org/jira/browse/HDFS-15452
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 3.0.3
> Reporter: jianghua zhu
> Assignee: jianghua zhu
> Priority: Major
>
> The default value for initializing BlocksMap in the BlockManager class is 2.
> This can be set to a dynamic value.
> BlockManager#BlockManager() {
> ......
> // Compute the map capacity by allocating 2% of total memory
> blocksMap = new BlocksMap(
> LightWeightGSet.computeCapacity(2.0, "BlocksMap"));
> ......
> }
>
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