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https://issues.apache.org/jira/browse/HDDS-7350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17633367#comment-17633367
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Kirill Sizov edited comment on HDDS-7350 at 11/13/22 4:55 PM:
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[~sodonnell] There is one major downside with having the compression at chunk
level - If encryption is enabled, then each chunk will contain encrypted bytes,
thus compression makes little sense in that case.
Also, if compression is implemented according to the attached document, the
data is compressed before getting into {{KeyOutputStream}} (or
{{ECKeyOutputStream}} if EC is enabled}}) and decompressed after being read
from it. So technically compression and replication type are independent and
compression will work for both EC and non-EC modes.
was (Author: JIRAUSER294519):
[~sodonnell] There is one major downside with having the compression at chunk
level - If encryption is enabled, then each chunk will contain encrypted bytes,
thus compression makes little sense in that case.
> Ozone Transparent Data Compression Support
> ------------------------------------------
>
> Key: HDDS-7350
> URL: https://issues.apache.org/jira/browse/HDDS-7350
> Project: Apache Ozone
> Issue Type: New Feature
> Reporter: Kirill Sizov
> Assignee: Kirill Sizov
> Priority: Major
> Attachments: compression_ozone - 2022.10.1.pdf,
> compression_ozone-2022.10.2.pdf, compression_ozone-2022.11.1.pdf,
> compression_ozone-2022.11.2.pdf
>
>
> Currently Ozone stores uncompressed data, which in case of text or a similar
> format may benefit from being compressed. This may save significant amount of
> space and hence the money.
> See the attached document for the design.
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