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https://issues.apache.org/jira/browse/CASSANDRA-18617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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dan jatnieks updated CASSANDRA-18617:
-------------------------------------
Change Category: Operability
Complexity: Normal
Component/s: Feature/Guardrails
Status: Open (was: Triage Needed)
> Disable the deprecated keyspace/table thresholds and convert them to
> Guardrails
> -------------------------------------------------------------------------------
>
> Key: CASSANDRA-18617
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18617
> Project: Cassandra
> Issue Type: Improvement
> Components: Feature/Guardrails
> Reporter: dan jatnieks
> Assignee: dan jatnieks
> Priority: Normal
> Fix For: 5.x
>
>
> The non-guardrail thresholds 'keyspace_count_warn_threshold' and
> 'table_count_warn_threshold' configuration settings were first added with
> CASSANDRA-16309 in 4.0-beta4 and have subsequently been deprecated since
> 4.1-alpha in CASSANDRA-17195 when they were replaced/migrated to guardrails
> as part of CEP-3 (Guardrails).
> These thresholds should now be removed from cassandra.yaml, while still
> allowed in existing yaml files.
> The old thresholds will be disabled by removing their default values from
> Config.java, and any existing values for these thresholds will be converted
> to the new guardrails using the '@Replaces' tag on the corresponding
> guardrail values.
> Since the old thresholds considered the number of system keyspace/tables in
> their values, the '@Replaces' conversion will subtract the current number of
> system tables from the old value and log a descriptive message.
> See dev list discussion:
> https://lists.apache.org/thread/0zjg08hrd6xv7lhvo96frz456b2rvr8b
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