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https://issues.apache.org/jira/browse/HDFS-7317?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Wang updated HDFS-7317:
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Description:
As discussed on HDFS-7285, StoragePolicy might not be the best name for what
StoragePolicy currently is, which is a hardcoded mapping to replica
StorageTypes with a fallback, and being able to specify a StorageType for
creation vs. replication). Ideally the "policy" is what determines the data
temperature in the first place, with the temperature then mapping to the actual
StorageTypes to use.
There were a number of suggestions presented, e.g. StorageTag,
StoragePolicyTag. Let's figure this out here.
was:
As discussed on HDFS-7285, StoragePolicy might not be the best name for what
StoragePolicy currently is, which is a hardcoded mapping to a StorageType.
Ideally the "policy" is what determines the data temperature in the first
place, with the temperature then mapping to the actual StorageTypes to use.
There were a number of suggestions presented, e.g. StorageTag,
StoragePolicyTag. Let's figure this out here.
Sorry, that was a bit sloppy, I do realize it's per-replica (i.e. the ONESSD
and ALLSSD) and also encompasses things like fallback and creation. I edited a
the description a bit, feel free to edit more if you feel it's necessary.
> Rename StoragePolicy
> --------------------
>
> Key: HDFS-7317
> URL: https://issues.apache.org/jira/browse/HDFS-7317
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 2.6.0
> Reporter: Andrew Wang
>
> As discussed on HDFS-7285, StoragePolicy might not be the best name for what
> StoragePolicy currently is, which is a hardcoded mapping to replica
> StorageTypes with a fallback, and being able to specify a StorageType for
> creation vs. replication). Ideally the "policy" is what determines the data
> temperature in the first place, with the temperature then mapping to the
> actual StorageTypes to use.
> There were a number of suggestions presented, e.g. StorageTag,
> StoragePolicyTag. Let's figure this out here.
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