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https://issues.apache.org/jira/browse/CASSANDRA-7559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14064340#comment-14064340
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Russell Alexander Spitzer commented on CASSANDRA-7559:
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cassandra.util.pair is also unserializable so i'll look at just removing the
stored Pair altogether.
> Switch Stress from using math3.pair because it is unserializable
> -----------------------------------------------------------------
>
> Key: CASSANDRA-7559
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7559
> Project: Cassandra
> Issue Type: Bug
> Components: Tools
> Reporter: Russell Alexander Spitzer
> Assignee: Russell Alexander Spitzer
>
> Stress uses org.apache.commons.math3.util.Pair to hold information in
> settings because eventually it is used in commons.math3.distributions. This
> makes the settings unserializable so we can't run with StressDemon.
> {code}
> /bin/cassandra-stress user no_warmup "ops(insert=1)" n=10000
> profile=cqlstress-example.yaml -sendto 127.0.0.1
> Exception in thread "main" java.io.NotSerializableException:
> org.apache.commons.math3.util.Pair
> at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1183)
> at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
> at java.util.ArrayList.writeObject(ArrayList.java:742)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
> at
> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495)
> at
> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
> at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
> at
> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
> at
> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
> at
> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
> at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
> at
> java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
> at
> java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
> at
> java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
> at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
> at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
> at org.apache.cassandra.stress.Stress.main(Stress.java:78)
> Control-C caught. Canceling running action and shutting down...
> {code}
> To fix this we can pass around serializable pairs and convert to
> commons.math3 pairs before we actually pass the objects to the distribution
> code.
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