Kezhu Wang created ZOOKEEPER-4511:
-------------------------------------
Summary: Flaky test:
FileTxnSnapLogMetricsTest.testFileTxnSnapLogMetrics
Key: ZOOKEEPER-4511
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4511
Project: ZooKeeper
Issue Type: Bug
Components: tests
Reporter: Kezhu Wang
* https://github.com/kezhuw/zookeeper/runs/5830250287?check_suite_focus=true
* https://github.com/apache/zookeeper/runs/5759834147?check_suite_focus=true
{code:none}
org.opentest4j.AssertionFailedError: expected: <1> but was: <0>
at
org.apache.zookeeper.server.persistence.FileTxnSnapLogMetricsTest.testFileTxnSnapLogMetrics(FileTxnSnapLogMetricsTest.java:86)
{code}
This test tries to write some txns to trigger snapshot with remaning txns in
txn log. But snapshot taking is asynchronous, thus all txns could be written to
snapshot. So in restarting, it is possible that no txns to load after snapshot
restored. This will fail assertion.
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