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https://issues.apache.org/jira/browse/CASSANDRA-16733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Lerer updated CASSANDRA-16733:
---------------------------------------
Fix Version/s: (was: 4.0-rc)
(was: 3.11.x)
(was: 3.0.x)
4.0
3.11.11
3.0.25
Since Version: 3.0.16
Source Control Link:
https://github.com/apache/cassandra/commit/9b6dd382bdf4a71c06091736ff98cb1307ff0e97
Resolution: Fixed
Status: Resolved (was: Ready to Commit)
Committed into 3.0 at 9b6dd382bdf4a71c06091736ff98cb1307ff0e97 and merged into
3.11, 4.0.0, 4.0 and trunk
> Allow operators to disable 'ALTER ... DROP COMPACT STORAGE' statements
> ----------------------------------------------------------------------
>
> Key: CASSANDRA-16733
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16733
> Project: Cassandra
> Issue Type: Bug
> Components: Legacy/CQL
> Reporter: Benjamin Lerer
> Assignee: Benjamin Lerer
> Priority: Normal
> Fix For: 3.0.25, 3.11.11, 4.0-rc2, 4.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> {{ALTER ... DROP COMPACT STORAGE}} statements have not been extensively
> tested and suffer from several issues like:
> * As COMPACT tables did not have primary key liveness there empty rows
> inserted AFTER the ALTER will be returned whereas the one inserted before
> the ALTER will not.
> * Also due to the lack of primary key liveness the amount of SSTables being
> read will increase resulting in slower queries (CASSANDRA-16675)
> * After DROP COMPACT it becomes possible to ALTER the table in a way that
> makes all the row disappears
> * There is a loss of functionality around null clustering when dropping
> compact storage (CASSANDRA-16069)
> To avoid running into those issues this ticket will introduce a new flag that
> allow operators to disable those statements on their clusters.
> see https://www.mail-archive.com/dev@cassandra.apache.org/msg16789.html
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