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https://issues.apache.org/jira/browse/CASSANDRA-20544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17942297#comment-17942297
]
David Capwell commented on CASSANDRA-20544:
-------------------------------------------
||Repo||Branch||Parent Branch||SHA||Status||
|https://github.com/dcapwell/cassandra.git|CASSANDRA-20544|trunk|4e455ea1ef82a242d9524450d2019a26702df213|Unstable
Failed Builds:
||Build||Result||Reason||
| jvm11-dtests | fail | Test
org.apache.cassandra.distributed.test.IPMembershipTest::startupNewIP-_jdk11
failed |
| jvm11-dtests-fuzz | fail | Test
junit.framework.TestSuite::org.apache.cassandra.fuzz.sai.MultiNodeSAITest-_jdk11
had an error |
| python-dtests | fail | Test
gossip_test.TestGossip::gossip_test.py::TestGossip::test_2dc_parallel_startup_one_seed
failed,T |
| python-dtests-large | fail | Test
consistency_test.TestAccuracy::consistency_test.py::TestAccuracy::test_network_topology_strateg
|
> AST Harry's multi node tests are flakey when multi cell list happens cross
> instances
> ------------------------------------------------------------------------------------
>
> Key: CASSANDRA-20544
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20544
> Project: Apache Cassandra
> Issue Type: Bug
> Components: Test/fuzz
> Reporter: David Capwell
> Assignee: David Capwell
> Priority: Normal
> Fix For: NA
>
> Attachments:
> ci_summary-trunk-4e455ea1ef82a242d9524450d2019a26702df213.html,
> result_details-trunk-4e455ea1ef82a242d9524450d2019a26702df213.tar.gz
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> List append relies on TimeUUID.Generator.nextUnixMicro, which relies on the
> local clock’s millisecond clock. In jvm-dtest all instances share the same
> physical clock, so most of the time time moves forward uniformly, but there
> is an edge case when the test “runs too fast” and creates a new TimeUUID
> within the same millisecond, when this happens a logically later timeuuid can
> happens-before a logically earlier timeuuid!
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