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https://issues.apache.org/jira/browse/CASSANDRA-18189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17752060#comment-17752060
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Brandon Williams commented on CASSANDRA-18189:
----------------------------------------------
Given that this is not a new regression for 5.0 I'm going to stop working on it
for now. Here are my notes:
The [returns from
cqlsh|https://github.com/apache/cassandra-dtest/blob/trunk/cqlsh_tests/test_cqlsh_copy.py#L2422]
are collected but never inspected. The number of records reported in the log
after this is just
[regurgitated|https://github.com/apache/cassandra-dtest/blob/trunk/cqlsh_tests/test_cqlsh_copy.py#L2423]
from the original insert, so it can easily be incorrect. It is ignored errors
here that result in the math being broken for the assertion later. This can
affect all versions of the _bulk_round_trip_ tests.
The _with_timeouts_ version specifically also has the issue of relying on small
read/write request timeout settings to force timeouts to occur, which will
obviously be very sensitive to the environment the test is run in.
> Test failure in
> cqlsh_tests.test_cqlsh_copy.TestCqlshCopy.test_bulk_round_trip_with_timeouts
> --------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-18189
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18189
> Project: Cassandra
> Issue Type: Bug
> Components: Test/dtest/python
> Reporter: Caleb Rackliffe
> Assignee: Brandon Williams
> Priority: Normal
> Labels: cqlsh, dtest, python, test
> Fix For: 3.0.x, 3.11.x, 4.0.x, 4.1.x, 5.x
>
>
> https://ci-cassandra.apache.org/job/Cassandra-4.0/523/testReport/dtest.cqlsh_tests.test_cqlsh_copy/TestCqlshCopy/test_bulk_round_trip_with_timeouts/
> {noformat}
> assert 100000 == 94764
> + where 100000 = sum(<generator object
> TestCqlshCopy._test_bulk_round_trip.<locals>.<genexpr> at 0x7f8b21987b90>)
> + and 94764 = sum(<generator object
> TestCqlshCopy._test_bulk_round_trip.<locals>.<genexpr> at 0x7f8b21986dc0>)
> {noformat}
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