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https://issues.apache.org/jira/browse/HDFS-13794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16572355#comment-16572355
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Virajith Jalaparti commented on HDFS-13794:
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Thanks for posting the patch [~ehiggs]. The patch looks good at a high-level. A
couple of questions:
(1) Why add a new {{DFS_PROVIDED_ALIASMAP_INMEMORY_RPC_BIND_HOST_KEY}} and not
use the existing {{DFS_PROVIDED_ALIASMAP_INMEMORY_RPC_BIND_HOST}}. They both
seem to serve the same purpose.
(2) Why add a new {{ITestInMemoryAliasMapProtocolClient}}? Unless I am missing
something, this seems to be testing the same functionality as the existing
{{TestInMemoryLevelDBAliasMapClient}}.
> [PROVIDED Phase 2] Teach BlockAliasMap.Writer `remove` method.
> --------------------------------------------------------------
>
> Key: HDFS-13794
> URL: https://issues.apache.org/jira/browse/HDFS-13794
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Ewan Higgs
> Assignee: Ewan Higgs
> Priority: Major
> Attachments: HDFS-13794-HDFS-12090.001.patch
>
>
> When updating the BlockAliasMap we may need to deal with deleted blocks.
> Otherwise the BlockAliasMap will grow indefinitely(!).
> Therefore, the BlockAliasMap.Writer needs a method for removing blocks.
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