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Posted to common-issues@hadoop.apache.org by "Kai Sasaki (JIRA)" <ji...@apache.org> on 2016/05/26 13:21:12 UTC
[jira] [Commented] (HADOOP-13202) Implementation of getNBytes in
org.apache.hadoop.util.bloom.BloomFilter might be changed
[ https://issues.apache.org/jira/browse/HADOOP-13202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15302059#comment-15302059 ]
Kai Sasaki commented on HADOOP-13202:
-------------------------------------
Though {{Math.toIntExact}} is a JDK8 API, HADOOP-11858 set minimum version JDK8. So it seems okay from Hadoop 3 to use.
> Implementation of getNBytes in org.apache.hadoop.util.bloom.BloomFilter might be changed
> ----------------------------------------------------------------------------------------
>
> Key: HADOOP-13202
> URL: https://issues.apache.org/jira/browse/HADOOP-13202
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.7.2
> Reporter: zhengbing li
> Assignee: Kai Sasaki
> Attachments: HADOOP-13202.01.patch
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Current implementation:
> return (vectorSize + 7) / 8;
> when vectorSize is 2147483647（the max value of Int), error :"java.lang.NegativeArraySizeException" will report
> the implementation might be changed
> return (int)(((long)vectorSize + 7) / 8);
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