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Posted to issues@hive.apache.org by "Sahil Takiar (JIRA)" <ji...@apache.org> on 2018/03/14 22:07:00 UTC
[jira] [Commented] (HIVE-18342) Remove LinkedList from
HiveAlterHandler.java
[ https://issues.apache.org/jira/browse/HIVE-18342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16399508#comment-16399508 ]
Sahil Takiar commented on HIVE-18342:
-------------------------------------
+1
> Remove LinkedList from HiveAlterHandler.java
> --------------------------------------------
>
> Key: HIVE-18342
> URL: https://issues.apache.org/jira/browse/HIVE-18342
> Project: Hive
> Issue Type: Improvement
> Components: HiveServer2
> Affects Versions: 3.0.0
> Reporter: BELUGA BEHR
> Assignee: BELUGA BEHR
> Priority: Trivial
> Attachments: HIVE-18342.1.patch
>
>
> Remove {{LinkedList}} in favor of {{ArrayList}} for class {{org.apache.hadoop.hive.metastore.HiveAlterHandler}}.
> {quote}
> The size, isEmpty, get, set, iterator, and listIterator operations run in constant time. The add operation runs in amortized constant time, that is, adding n elements requires O(n) time. All of the other operations run in linear time (roughly speaking). *The constant factor is low compared to that for the LinkedList implementation.*
> {quote}
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