Dmitry Konstantinov created CASSANDRA-21810:
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Summary: Flaky tests due to "Broken pipe" on teardown
Key: CASSANDRA-21810
URL: https://issues.apache.org/jira/browse/CASSANDRA-21810
Project: Apache Cassandra
Issue Type: Bug
Components: Test/dtest/python
Reporter: Dmitry Konstantinov
Example:
[https://ci-cassandra.apache.org/job/Cassandra-5.0/686/testReport/junit/dtest-upgrade-novnode.upgrade_tests.cql_tests/TestCQLNodes3RF3_Upgrade_indev_4_0_x_To_indev_5_0_x/Tests___dtest_upgrade_novnode_jdk11_104_128___test_cas_and_compact/]
{code:java}
failed on teardown with "Failed: Unexpected error found in node logs (see
stdout for full details). Errors: [[node1] 'WARN [epollEventLoopGroup-5-3]
2026-10-24 01:19:47,795 PreV5Handlers.java:261 - Unknown exception in client
networking\nio.netty.channel.unix.Errors$NativeIoException: writevAddresses(..)
failed: Broken pipe', [node1] 'WARN [epollEventLoopGroup-5-3] 2026-10-24
01:19:47,796 PreV5Handlers.java:261 - Unknown exception in client
networking\nio.netty.channel.unix.Errors$NativeIoException: writevAddresses(..)
failed: Broken pipe', [node1] 'WARN [epollEventLoopGroup-5-3] 2026-10-24
01:19:47,796 PreV5Handlers.java:261 - Unknown exception in client
networking\nio.netty.channel.unix.Errors$NativeIoException: writevAddresses(..)
failed: Broken pipe', [node1] 'WARN [epollEventLoopGroup-5-3] 2026-10-24
01:19:47,796 PreV5Handlers.java:261 - Unknown exception in client
networking\nio.netty.channel.unix.Errors$NativeIoException: writevAddresses(..)
failed: Broken pipe']" {code}
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