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Posted to hdfs-issues@hadoop.apache.org by "Colin Patrick McCabe (JIRA)" <ji...@apache.org> on 2013/05/09 03:56:13 UTC
[jira] [Updated] (HDFS-4698) provide client-side metrics for remote
reads, local reads, and short-circuit reads
[ https://issues.apache.org/jira/browse/HDFS-4698?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Colin Patrick McCabe updated HDFS-4698:
---------------------------------------
Attachment: HDFS-4698.004.patch
> provide client-side metrics for remote reads, local reads, and short-circuit reads
> ----------------------------------------------------------------------------------
>
> Key: HDFS-4698
> URL: https://issues.apache.org/jira/browse/HDFS-4698
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs-client
> Affects Versions: 2.0.4-alpha
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Priority: Minor
> Attachments: HDFS-4698.001.patch, HDFS-4698.002.patch, HDFS-4698.003.patch, HDFS-4698.004.patch
>
>
> We should provide metrics to let clients know how many bytes of data they have read remotely, versus locally or via short-circuit local reads. This will allow clients to know how well they're doing at bringing the computation to the data, which will be useful in evaluating placement policies and cluster configurations.
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Re: [SPAM] [jira] [Updated] (HDFS-4698) provide client-side metrics
for remote reads, local reads, and short-circuit reads
Posted by "gschen.fudan" <10...@fudan.edu.cn>.
δΊ 2013/5/9 9:56, Colin Patrick McCabe (JIRA) ει:
> [ https://issues.apache.org/jira/browse/HDFS-4698?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
>
> Colin Patrick McCabe updated HDFS-4698:
> ---------------------------------------
>
> Attachment: HDFS-4698.004.patch
>
>> provide client-side metrics for remote reads, local reads, and short-circuit reads
>> ----------------------------------------------------------------------------------
>>
>> Key: HDFS-4698
>> URL: https://issues.apache.org/jira/browse/HDFS-4698
>> Project: Hadoop HDFS
>> Issue Type: Improvement
>> Components: hdfs-client
>> Affects Versions: 2.0.4-alpha
>> Reporter: Colin Patrick McCabe
>> Assignee: Colin Patrick McCabe
>> Priority: Minor
>> Attachments: HDFS-4698.001.patch, HDFS-4698.002.patch, HDFS-4698.003.patch, HDFS-4698.004.patch
>>
>>
>> We should provide metrics to let clients know how many bytes of data they have read remotely, versus locally or via short-circuit local reads. This will allow clients to know how well they're doing at bringing the computation to the data, which will be useful in evaluating placement policies and cluster configurations.
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