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https://issues.apache.org/jira/browse/CASSANDRA-21057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paulo Motta updated CASSANDRA-21057:
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Since Version: 4.1-alpha1
> Disk usage guardrail cannot be disabled when failure threshold is reached
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-21057
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21057
> Project: Apache Cassandra
> Issue Type: Bug
> Components: Feature/Guardrails
> Reporter: Paulo Motta
> Priority: Normal
>
> When the max allowed disk usage is reached, the node stop accepting writes.
> In case the operator wants to disable the guardrail so the node start
> accepting writes again, it is not able to do so by attempting to unset the
> warning and failure thresholds to null at runtime:
> {code}
> nodetool-all setguardrailsconfig data_disk_usage_percentage_threshold null
> null
> {code}
> The reason for this is because the node does not stop advertising it's
> {{FULL}} via gossip. We should set the state to {{SPACIOUS}} when the
> guardrail is disabled at runtime.
> A workaround for this is to set the data_disk_usage_max_disk_size to a very
> high value:
> {code}
> nodetool-all setguardrailsconfig data_disk_usage_max_disk_size 10000GiB # set
> to a very large value
> {code}
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