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https://issues.apache.org/jira/browse/CASSANDRA-19047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17788787#comment-17788787
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Mohammad Aburadeh commented on CASSANDRA-19047:
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Hi [~adelapena],
Thanks for the detailed answer.
I'm upgrading our production clusters ( 40 prod. clusters ) from 3.11.15 to
4.1.3. I'm trying to find a way to get rid of the deprecated warnings by either
setting table_count_warn_threshold or tables_warn_threshold. The warnings are
really annoying specifically when I replace table_count_warn_threshold with
tables_warn_threshold.
Do you agree that we should not get deprecation warnings when the guardrail for
the number of tables/keyspace is set?
Regards
Mohammad
> Guardrail for the number of tables is not working
> -------------------------------------------------
>
> Key: CASSANDRA-19047
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19047
> Project: Cassandra
> Issue Type: Bug
> Components: Cluster/Schema
> Reporter: Mohammad Aburadeh
> Priority: Urgent
>
> Hi,
> We installed Cassandra 4.1.3 and we got the following warning when creating
> more than 150 tables:
> {code:java}
> WARN [Native-Transport-Requests-6] 2023-11-21 18:35:24,585
> CreateTableStatement.java:421 - Cluster already contains 161 tables in 6
> keyspaces. Having a large number of tables will significantly slow down
> schema dependent cluster operations. {code}
> I tried to disable "table_count_warn_threshold" by setting its value to "-1"
> but that did not work.
> Then I tried to set the guardrail for number of tables to "-1" to disable the
> above but did not work as well. It seems there is no way to disable checking
> the number of tables.
> Also, I tried to set "tables_warn_threshold" to a value less than
> "tables_count_warn_threshold", it seems Cassandra always uses
> "tables_count_warn_threshold" when throwing the warning.
> *Two issues in Cassandra 4.1.3:*
> 1- There should be a way to disable this feature. Either by setting the
> guardrail parameter to -1 or setting tables_count_warn_threshold to -1.
> 2- The guardrail for number of tables should overwrite
> tables_count_warn_threshold because I always get the following warning when I
> try to increase the number of tables:
> {code:java}
> WARN [main] 2023-11-21 18:26:16,988 YamlConfigurationLoader.java:427 -
> [keyspace_count_warn_threshold, table_count_warn_threshold] parameters have
> been deprecated. They have new names and/or value format; For more
> information, please refer to NEWS.txt {code}
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