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https://issues.apache.org/jira/browse/CASSANDRA-19583?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17845124#comment-17845124
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Arun Ganesh commented on CASSANDRA-19583:
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I've a patch ready for trunk. Let me know if it's okay. Also, should I add more
tests and change the exception's message to indicate "0" is now allowed?
> Make 0 work as 0+unit for all three config classes (DataStorageSpec,
> DurationSpec, DataRateSpec)
> ------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-19583
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19583
> Project: Cassandra
> Issue Type: Improvement
> Components: Local/Config
> Reporter: Jon Haddad
> Assignee: Arun Ganesh
> Priority: Normal
> Fix For: 4.1.x, 5.0.x, 5.x
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The inline docs say:
> {noformat}
> Setting this to 0 disables throttling.
> {noformat}
> However, on startup, we throw this error:
> {noformat}
> Caused by: java.lang.IllegalArgumentException: Invalid data rate: 0 Accepted
> units: MiB/s, KiB/s, B/s where case matters and only non-negative values a>
> Apr 23 23:12:01 cassandra0 cassandra[3424]: at
> org.apache.cassandra.config.DataRateSpec.<init>(DataRateSpec.java:52)
> Apr 23 23:12:01 cassandra0 cassandra[3424]: at
> org.apache.cassandra.config.DataRateSpec.<init>(DataRateSpec.java:61)
> Apr 23 23:12:01 cassandra0 cassandra[3424]: at
> org.apache.cassandra.config.DataRateSpec$LongBytesPerSecondBound.<init>(DataRateSpec.java:232)
> Apr 23 23:12:01 cassandra0 cassandra[3424]: ... 27 common frames
> omitted
> {noformat}
> We should allow 0 without a unit attached for data, duration, and data spec
> config parameters, as 0 is always 0 no matter the unit.
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