Igor Meltser created CASSANDRA-8412:
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Summary: Cassandra stress tool fails with
NotStrictlyPositiveException on example profiles
Key: CASSANDRA-8412
URL: https://issues.apache.org/jira/browse/CASSANDRA-8412
Project: Cassandra
Issue Type: Bug
Components: Tools
Environment: Linux Centos
Reporter: Igor Meltser
Priority: Critical
Trying to run stress tool with provided profile fails:
dsc-cassandra-2.1.2/tools $ ./bin/cassandra-stress user n=1
profile=cqlstress-example.yaml ops\(insert=1\) -node ....
INFO 06:21:35 Using data-center name 'datacenter1' for DCAwareRoundRobinPolicy
(if this is incorrect, please provide the correct datacenter name with
DCAwareRoundRobinPolicy constructor)
Connected to cluster: Benchmark Cluster
INFO 06:21:35 New Cassandra host /....:9042 added
Datatacenter: datacenter1; Host: /.....; Rack: rack1
Datatacenter: datacenter1; Host: /....; Rack: rack1
Datatacenter: datacenter1; Host: marcus14-p/....; Rack: rack1
INFO 06:21:35 New Cassandra host marcus14-p/....:9042 added
INFO 06:21:35 New Cassandra host /....:9042 added
Created schema. Sleeping 3s for propagation.
Exception in thread "main"
org.apache.commons.math3.exception.NotStrictlyPositiveException: standard
deviation (0)
at
org.apache.commons.math3.distribution.NormalDistribution.<init>(NormalDistribution.java:108)
at
org.apache.cassandra.stress.settings.OptionDistribution$GaussianFactory.get(OptionDistribution.java:418)
at
org.apache.cassandra.stress.generate.SeedManager.<init>(SeedManager.java:59)
at
org.apache.cassandra.stress.settings.SettingsCommandUser.getFactory(SettingsCommandUser.java:78)
at org.apache.cassandra.stress.StressAction.run(StressAction.java:61)
at org.apache.cassandra.stress.Stress.main(Stress.java:109)
The tool is 2.1.2 version, but the tested Cassandra is 2.0.8 version
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