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Posted to common-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/01/31 06:31:00 UTC
[jira] [Work logged] (HADOOP-18059) CachedDNSToSwitchMapping#reloadCachedMappings is not consistent with CachedDNSToSwitchMapping#resolve
[ https://issues.apache.org/jira/browse/HADOOP-18059?focusedWorklogId=717760&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-717760 ]
ASF GitHub Bot logged work on HADOOP-18059:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 31/Jan/22 06:30
Start Date: 31/Jan/22 06:30
Worklog Time Spent: 10m
Work Description: secfree closed pull request #3837:
URL: https://github.com/apache/hadoop/pull/3837
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Issue Time Tracking
-------------------
Worklog Id: (was: 717760)
Time Spent: 1h (was: 50m)
> 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
> Assignee: secfree
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 1h
> Remaining Estimate: 0h
>
> 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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