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https://issues.apache.org/jira/browse/CASSANDRA-5306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13649179#comment-13649179
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Marcus Eriksson commented on CASSANDRA-5306:
--------------------------------------------
seeing intermittent failures in DynamicEndpointSnitchTest:
[junit] Testcase:
testSnitch(org.apache.cassandra.locator.DynamicEndpointSnitchTest): FAILED
[junit] null
[junit] junit.framework.AssertionFailedError
[junit] at
org.apache.cassandra.locator.DynamicEndpointSnitchTest.testSnitch(DynamicEndpointSnitchTest.java:61)
[junit]
[junit]
[junit] Test org.apache.cassandra.locator.DynamicEndpointSnitchTest FAILED
it seems to be related to the amount of iowait there is on the host running the
test - high iowait means the list does not sort the expected way.
> Improve Dsnitch Severity
> ------------------------
>
> Key: CASSANDRA-5306
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5306
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Vijay
> Assignee: Vijay
> Priority: Minor
> Fix For: 2.0
>
> Attachments: 0001-5306.patch
>
>
> This ticket is to continue the discussion in CASSANDRA-5255.
> Currently Dsnitch reports the Severity by calculating the amount of data
> compacting relative to load of the node.
> It will be nice to report Severity as a factor of load average, N/W
> Throughput and IO Wait instead.
> http://www.hyperic.com/products/sigar seem to have it (But personally i have
> not used it).
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