secfree created HADOOP-18059:
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Summary: CachedDNSToSwitchMapping#reloadCachedMappings is not
consistent with CachedDNSToSwitchMapping#resolve
Key: HADOOP-18059
URL: https://issues.apache.org/jira/browse/HADOOP-18059
Project: Hadoop Common
Issue Type: Bug
Reporter: secfree
The follow test case failed.
{code}
public class TestCachedDNSToSwitchMapping {
@Test
public void testReloadCachedMappings() {
StaticMapping.resetMap();
StaticMapping.addNodeToRack("127.0.0.1", "/rack0");
StaticMapping.addNodeToRack("notexisit.host.com", "/rack1");
CachedDNSToSwitchMapping cacheMapping =
new CachedDNSToSwitchMapping(new StaticMapping());
List<String> names = new ArrayList<>();
names.add("localhost");
names.add("notexisit.host.com");
cacheMapping.resolve(names);
Assert.assertTrue(cacheMapping.getSwitchMap().containsKey("127.0.0.1"));
Assert.assertTrue(cacheMapping.getSwitchMap().containsKey("notexisit.host.com"));
cacheMapping.reloadCachedMappings(names);
// failed here
Assert.assertEquals(0, cacheMapping.getSwitchMap().keySet().size());
}
}
{code}
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