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Posted to yarn-issues@hadoop.apache.org by "Peter Bacsko (JIRA)" <ji...@apache.org> on 2019/03/13 09:58:00 UTC
[jira] [Updated] (YARN-9268) General improvements in FpgaDevice
[ https://issues.apache.org/jira/browse/YARN-9268?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Peter Bacsko updated YARN-9268:
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Summary: General improvements in FpgaDevice (was: Various fixes are needed in FpgaDevice)
> General improvements in FpgaDevice
> ----------------------------------
>
> Key: YARN-9268
> URL: https://issues.apache.org/jira/browse/YARN-9268
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Peter Bacsko
> Assignee: Peter Bacsko
> Priority: Major
> Attachments: YARN-9268-001.patch, YARN-9268-002.patch, YARN-9268-003.patch
>
>
> Need to fix the following in the class {{FpgaDevice}}:
> * It implements {{Comparable}}, but returns 0 in every case. There is no natural ordering among FPGA devices, perhaps "acl0" comes before "acl1", but this seems too forced and unnecessary.We think this class should not implement {{Comparable}} at all, at least not like that.
> * Stores unnecessary fields: devName, busNum, temperature, power usage. For one, these are never needed in the code. Secondly, temp and power usage changes constantly. It's pointless to store these in this POJO.
> * {{serialVersionUID}} is 1L - let's generate a number for this
> * Use {{int}} instead of {{Integer}} - don't allow nulls. If major/minor uniquely identifies the card, then let's demand them in the constructor and don't store Integers that can be null.
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