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https://issues.apache.org/jira/browse/CASSANDRA-15074?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paulo Motta updated CASSANDRA-15074:
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Authors: Paulo Motta
Complexity: Challenging (was: Normal)
> Allow table property defaults (e.g. compaction, compression) to be specified
> for a cluster/keyspace
> ---------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-15074
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15074
> Project: Cassandra
> Issue Type: Improvement
> Components: Cluster/Schema
> Reporter: Joey Lynch
> Priority: Low
> Labels: gsoc2021, mentor
> Fix For: 4.x
>
>
> During an IRC discussion in
> [cassandra-dev|https://wilderness.apache.org/channels/?f=cassandra-dev/2019-04-02#1554224083]
> it was proposed that we could have table property defaults stored on a
> Keyspace or globally within the cluster. For example, this would allow users
> to specify "All new tables on this cluster should default to LCS with SSTable
> size of 320MiB" or "all new tables in Keyspace XYZ should have Zstd
> commpression with a 8 KiB block size" or "default_time_to_live should default
> to 3 days" etc ... This way operators can choose the default that makes sense
> for their organization once (e.g. LCS if they are running on fast SSDs),
> rather than requiring developers creating the Keyspaces/Tables to make the
> decision on every creation (often without context of which choices are right).
> A few implementation options were discussed including:
> * A YAML option
> * Schema provided at the Keyspace level that would be inherited by any
> tables automatically
> * Schema provided at the Cluster level that would be inherited by any
> Keyspaces or Tables automatically
> In IRC it appears that rough consensus was found in having global -> keyspace
> -> table defaults which would be stored in schema (no YAML configuration
> since this isn't node level really, it's a cluster level config).
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