[jira] [Commented] (HDFS-5359) allow LightWeightGSet#Iterator to remove elements

["Colin Patrick McCabe (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-5359?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13794622#comment-13794622 ] 

Colin Patrick McCabe commented on HDFS-5359:
--------------------------------------------

Note that this doesn't mean supporting concurrent modification and iteration-- just deleting through the iterator, needed for HDFS-5096.

We are not going to support this for the subclass {{LightWeightCache}}, since that class is a bit more complex and there isn't a use case where we need it yet.

> allow LightWeightGSet#Iterator to remove elements
> -------------------------------------------------
>
>                 Key: HDFS-5359
>                 URL: https://issues.apache.org/jira/browse/HDFS-5359
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>    Affects Versions: HDFS-4949
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>
> Small modification to {{GSet#Iterator}} so that it can remove elements.



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