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https://issues.apache.org/jira/browse/CASSANDRA-15650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17064073#comment-17064073
]
David Capwell commented on CASSANDRA-15650:
-------------------------------------------
To help me replicate I am using the following scripts
{code}
$ cat ci-test-loop
#!/usr/bin/env bash
#set -o xtrace
set -o errexit
set -o pipefail
set -o nounset
class_name="$1"
path="$(echo "$class_name" | tr '.' '/' ).java"
prefix="$( find test | grep "$path" | awk -F/ '{print $2}' )"
while ant testclasslist -Dtest.classlistfile=<(echo "$path")
-Dtest.classlistprefix=$prefix ; do
rm -rf build/test/logs || true
done;
{code}
{code}
$ cat mac-throttle.sh
#!/usr/bin/env bash
#set -o xtrace
set -o errexit
set -o pipefail
set -o nounset
bin="$(cd "$(dirname "$0")" > /dev/null; pwd)"
_main() {
local pid
while true; do
pid="$(ps -ef | grep JUnitTestRunner | grep -v grep | awk '{print $2}' ||
true)"
if [ ! -z "${pid:-}" ]; then
renice +15 -p $pid || true
fi
sleep 1
done
}
_main "$@"
{code}
{code}
for core in $(sudo cpuctl list | awk -F: '{print $1}' | tr -d 'CPU' | tail -n
+3); do sudo cpuctl offline $core; done;
{code}
> Fix flaky test
> org.apache.cassandra.distributed.test.*RepairCoordinatorFastTest
> -------------------------------------------------------------------------------
>
> Key: CASSANDRA-15650
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15650
> Project: Cassandra
> Issue Type: Bug
> Components: Test/dtest
> Reporter: David Capwell
> Assignee: David Capwell
> Priority: Normal
> Fix For: 4.0-alpha
>
>
> Test failure:
> https://app.circleci.com/pipelines/github/dcapwell/cassandra/177/workflows/3dff37a5-9bf4-40e2-8d5b-f127b416dc79/jobs/862
> {code}
> [junit-timeout] Testcase:
> onlyCoordinator[SEQUENTIAL/true](org.apache.cassandra.distributed.test.FullRepairCoordinatorFastTest):
> FAILED
> [junit-timeout] nodetool command repair was successful but not expected to
> be. Actual: 0
> [junit-timeout] junit.framework.AssertionFailedError: nodetool command repair
> was successful but not expected to be. Actual: 0
> [junit-timeout] at
> org.apache.cassandra.distributed.api.NodeToolResult$Asserts.failure(NodeToolResult.java:76)
> [junit-timeout] at
> org.apache.cassandra.distributed.test.RepairCoordinatorFast.onlyCoordinator(RepairCoordinatorFast.java:255)
> [junit-timeout] at
> java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [junit-timeout] at java.lang.Thread.run(Thread.java:748)
> {code}
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