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https://issues.apache.org/jira/browse/HADOOP-9088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13526689#comment-13526689
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Aaron T. Myers commented on HADOOP-9088:
----------------------------------------
It looks like this patch is changing the default hash type, which as Todd has
pointed out should be considered an incompatible change:
{code}
public static int getHashType(Configuration conf) {
- String name = conf.get("hadoop.util.hash.type", "murmur");
+ String name = conf.get("hadoop.util.hash.type", "murmur3");
return parseHashType(name);
}
{code}
I think it's fine to add this new option, but I agree with Todd that we should
not change the default.
> Add Murmur3 hash
> ----------------
>
> Key: HADOOP-9088
> URL: https://issues.apache.org/jira/browse/HADOOP-9088
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Radim Kolar
> Assignee: Radim Kolar
> Attachments: murmur3-2.txt, murmur3-3.txt, murmur3-4.txt,
> murmur3-5.txt, murmur3-6.txt, murmur3.txt
>
>
> faster and better then murmur2
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