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https://issues.apache.org/jira/browse/CASSANDRA-19575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brandon Williams updated CASSANDRA-19575:
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Bug Category: Parent values: Degradation(12984)Level 1 values: Resource
Management(12995)
Complexity: Normal
Discovered By: User Report
Fix Version/s: 4.1.x
5.0.x
5.x
Severity: Normal
Status: Open (was: Triage Needed)
> StartupCheck error for read_ahead_kb
> ------------------------------------
>
> Key: CASSANDRA-19575
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19575
> Project: Cassandra
> Issue Type: Bug
> Components: Local/Startup and Shutdown
> Reporter: Morten Joenby
> Priority: Normal
> Fix For: 4.1.x, 5.0.x, 5.x
>
>
> We believe the StartupChecks.java has a minor bug here:
> [https://github.com/apache/cassandra/blob/cassandra-4.1/src/java/org/apache/cassandra/service/StartupChecks.java#L737]
> {code:java}
> String deviceName = blockDirComponents[2].replaceAll("[0-9]*$", "");{code}
> We are using a RAID setup with two disks, so removing the "[0-9]" makes the
> check fail:
> cat /sys/block/md/queue/read_ahead_kb
> cat: /sys/block/md/queue/read_ahead_kb: No such file or directory
> It should be "md0" in our case, so removing the '0' won't work.
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