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https://issues.apache.org/jira/browse/CASSANDRA-15543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17042208#comment-17042208
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Brandon Williams commented on CASSANDRA-15543:
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This is relatively easy to reproduce. We can get three types of responses here.
The one the test wants:
{code}
org.apache.cassandra.exceptions.ReadFailureException: Operation failed -
received 1 responses and 1 failures: INCOMPATIBLE_SCHEMA from 127.0.0.3:7012,
INCOMPATIBLE_SCHEMA from 127.0.0.2:7012
{code}
but sometimes with two failures:
{code}
org.apache.cassandra.exceptions.ReadFailureException: Operation failed -
received 1 responses and 2 failures: INCOMPATIBLE_SCHEMA from 127.0.0.3:7012,
INCOMPATIBLE_SCHEMA from 127.0.0.2:7012
{code}
And sometimes either one of the nodes by itself:
{code}
org.apache.cassandra.exceptions.ReadFailureException: Operation failed -
received 1 responses and 1 failures: INCOMPATIBLE_SCHEMA from 127.0.0.3:7012
{code}
At the least it seems we have a legit problem with terminology or counting here.
> flaky test
> org.apache.cassandra.distributed.test.SimpleReadWriteTest.readWithSchemaDisagreement
> -----------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-15543
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15543
> Project: Cassandra
> Issue Type: Bug
> Components: Test/dtest
> Reporter: David Capwell
> Priority: Normal
> Fix For: 4.0-alpha
>
>
> This fails infrequently, last seen failure was on java 8
> {code}
> junit.framework.AssertionFailedError
> at
> org.apache.cassandra.distributed.test.DistributedReadWritePathTest.readWithSchemaDisagreement(DistributedReadWritePathTest.java:276)
> {code}
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