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https://issues.apache.org/jira/browse/HADOOP-989?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Raghu Angadi reassigned HADOOP-989:
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Assignee: Raghu Angadi
> Namenode does not need to use Block objects
> -------------------------------------------
>
> Key: HADOOP-989
> URL: https://issues.apache.org/jira/browse/HADOOP-989
> Project: Hadoop
> Issue Type: Improvement
> Components: dfs
> Reporter: Raghu Angadi
> Assigned To: Raghu Angadi
>
> Currently Block object has Block ID and Block length. There are various maps
> in Namenode that map from or to Block objects but its length is rarely used
> and essentially a nice-to-have member. We could track only BlockIds in
> Namenode and if length is required we could store it in rest of the block
> related data (see HADOOP 988).
> This will reduce memory and will make block look ups faster.
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