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HBASE-27720 TestClusterRestartFailover is flakey due to metrics assertion #5110

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Apr 8, 2023
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HBASE-27720 TestClusterRestartFailover is flakey due to metrics assertion #5110

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6 changes: 6 additions & 0 deletions hbase-server/src/test/java/org/apache/hadoop/hbase/master/TestClusterRestartFailover.java
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Original file line number Diff line number Diff line change
Expand Up @@ -141,6 +141,12 @@ private void setupCluster() throws Exception {
LOG.info("Setup cluster");
UTIL.startMiniCluster(StartTestingClusterOption.builder().masterClass(HMasterForTest.class)
.numMasters(1).numRegionServers(3).build());
// this test has been flaky. When it is rerun by surefire, the underlying minicluster isn't
// completely cleaned. specifically, the metrics system isn't reset. The result is an otherwise
// successful re-run is failed because there's 8 or 12 SCPcounts instead of the 4 that a
// single run of the test would otherwise produce. Thus, explicitly reset the metrics source
// each time we setup the cluster.
UTIL.getMiniHBaseCluster().getMaster().getMasterMetrics().getMetricsSource().init();
LOG.info("Cluster is up");
UTIL.waitFor(60000, () -> UTIL.getMiniHBaseCluster().getMaster().isInitialized());
LOG.info("Master is up");
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