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Posted to commits@cassandra.apache.org by "Ekaterina Dimitrova (Jira)" <ji...@apache.org> on 2020/06/25 16:34:00 UTC
[jira] [Comment Edited] (CASSANDRA-13994) Remove COMPACT STORAGE
internals before 4.0 release
[ https://issues.apache.org/jira/browse/CASSANDRA-13994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17145076#comment-17145076 ]
Ekaterina Dimitrova edited comment on CASSANDRA-13994 at 6/25/20, 4:33 PM:
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Thanks [~slebresne] for spending the time on this. Appreciate it!
I also did a quick CCM test upgrading locally while still having the indexes and I didn't see any issues.
If the community still wants the dead code removed, I can rebase and go through the points of your initial review next week. (and returning the KEYS index back of course)
was (Author: e.dimitrova):
Thanks [~slebresne] for spending the time on this. Appreciate it!
I also did a quick CCM test upgrading locally while still having the indexes and I didn't see any issues.
If the community still wants the dead code removed, I can rebase and go through the points of your initial review next week. (and returning the KEY index back of course)
> Remove COMPACT STORAGE internals before 4.0 release
> ---------------------------------------------------
>
> Key: CASSANDRA-13994
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13994
> Project: Cassandra
> Issue Type: Improvement
> Components: Legacy/Local Write-Read Paths
> Reporter: Alex Petrov
> Assignee: Ekaterina Dimitrova
> Priority: Low
> Fix For: 4.0, 4.0-alpha
>
>
> 4.0 comes without thrift (after [CASSANDRA-11115]) and COMPACT STORAGE (after [CASSANDRA-10857]), and since Compact Storage flags are now disabled, all of the related functionality is useless.
> There are still some things to consider:
> 1. One of the system tables (built indexes) was compact. For now, we just added {{value}} column to it to make sure it's backwards-compatible, but we might want to make sure it's just a "normal" table and doesn't have redundant columns.
> 2. Compact Tables were building indexes in {{KEYS}} mode. Removing it is trivial, but this would mean that all built indexes will be defunct. We could log a warning for now and ask users to migrate off those for now and completely remove it from future releases. It's just a couple of classes though.
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