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https://issues.apache.org/jira/browse/GEODE-8623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17230958#comment-17230958
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ASF GitHub Bot commented on GEODE-8623:
---------------------------------------
jinmeiliao commented on pull request #5680:
URL: https://github.com/apache/geode/pull/5680#issuecomment-726347938
appreciate everyone's feedback. I am closing this PR and continue the work
on another PR: https://github.com/apache/geode/pull/5743
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> Timing between DNS and Geode startup can result in permanent unknown host
> exceptions.
> -------------------------------------------------------------------------------------
>
> Key: GEODE-8623
> URL: https://issues.apache.org/jira/browse/GEODE-8623
> Project: Geode
> Issue Type: Bug
> Affects Versions: 1.9.0, 1.9.1, 1.10.0, 1.9.2, 1.11.0, 1.12.0, 1.13.0,
> 1.14.0, 1.13.1
> Reporter: Jacob Barrett
> Priority: Minor
> Labels: pull-request-available
>
> In a managed environment were local host name DNS entries and the startup of
> Geode happen concurrently it is possible for Geode to fail name resolution in
> the local hostname caching. If it fails to resolve the local hostname when
> loading the caching utility class then any service dependent on this name
> will fail without chance for recovery.
> {code}
> [error 2020/09/30 19:50:21.644 UTC <main> tid=0x1] Jmx manager could not be
> started because java.net.UnknownHostException
> org.apache.geode.management.ManagementException: java.net.UnknownHostException
> at
> org.apache.geode.management.internal.ManagementAgent.startAgent(ManagementAgent.java:133)
> at
> org.apache.geode.management.internal.SystemManagementService.startManager(SystemManagementService.java:432)
> at
> org.apache.geode.management.internal.beans.ManagementAdapter.handleCacheCreation(ManagementAdapter.java:181)
> at
> org.apache.geode.management.internal.beans.ManagementListener.handleEvent(ManagementListener.java:127)
> at
> org.apache.geode.distributed.internal.InternalDistributedSystem.notifyResourceEventListeners(InternalDistributedSystem.java:2063)
> at
> org.apache.geode.distributed.internal.InternalDistributedSystem.handleResourceEvent(InternalDistributedSystem.java:606)
> at
> org.apache.geode.internal.cache.GemFireCacheImpl.initialize(GemFireCacheImpl.java:1239)
> at
> org.apache.geode.internal.cache.InternalCacheBuilder.create(InternalCacheBuilder.java:219)
> at
> org.apache.geode.internal.cache.InternalCacheBuilder.create(InternalCacheBuilder.java:171)
> at org.apache.geode.cache.CacheFactory.create(CacheFactory.java:142)
> at
> org.apache.geode.distributed.internal.DefaultServerLauncherCacheProvider.createCache(DefaultServerLauncherCacheProvider.java:52)
> at
> org.apache.geode.distributed.ServerLauncher.createCache(ServerLauncher.java:887)
> at
> org.apache.geode.distributed.ServerLauncher.start(ServerLauncher.java:803)
> at
> org.apache.geode.distributed.ServerLauncher.run(ServerLauncher.java:732)
> at
> org.apache.geode.distributed.ServerLauncher.main(ServerLauncher.java:251)
> Caused by: java.net.UnknownHostException
> at
> org.apache.geode.internal.net.SocketCreator.getLocalHost(SocketCreator.java:285)
> at
> org.apache.geode.management.internal.ManagementAgent.configureAndStart(ManagementAgent.java:310)
> at
> org.apache.geode.management.internal.ManagementAgent.startAgent(ManagementAgent.java:131)
> ... 14 more
> [error 2020/09/30 19:50:21.724 UTC <main> tid=0x1]
> org.apache.geode.management.ManagementException: java.net.UnknownHostException
> Exception in thread "main" org.apache.geode.management.ManagementException:
> java.net.UnknownHostException
> at
> org.apache.geode.management.internal.ManagementAgent.startAgent(ManagementAgent.java:133)
> at
> org.apache.geode.management.internal.SystemManagementService.startManager(SystemManagementService.java:432)
> at
> org.apache.geode.management.internal.beans.ManagementAdapter.handleCacheCreation(ManagementAdapter.java:181)
> at
> org.apache.geode.management.internal.beans.ManagementListener.handleEvent(ManagementListener.java:127)
> at
> org.apache.geode.distributed.internal.InternalDistributedSystem.notifyResourceEventListeners(InternalDistributedSystem.java:2063)
> at
> org.apache.geode.distributed.internal.InternalDistributedSystem.handleResourceEvent(InternalDistributedSystem.java:606)
> at
> org.apache.geode.internal.cache.GemFireCacheImpl.initialize(GemFireCacheImpl.java:1239)
> at
> org.apache.geode.internal.cache.InternalCacheBuilder.create(InternalCacheBuilder.java:219)
> at
> org.apache.geode.internal.cache.InternalCacheBuilder.create(InternalCacheBuilder.java:171)
> at org.apache.geode.cache.CacheFactory.create(CacheFactory.java:142)
> at
> org.apache.geode.distributed.internal.DefaultServerLauncherCacheProvider.createCache(DefaultServerLauncherCacheProvider.java:52)
> at
> org.apache.geode.distributed.ServerLauncher.createCache(ServerLauncher.java:887)
> at
> org.apache.geode.distributed.ServerLauncher.start(ServerLauncher.java:803)
> at
> org.apache.geode.distributed.ServerLauncher.run(ServerLauncher.java:732)
> at
> org.apache.geode.distributed.ServerLauncher.main(ServerLauncher.java:251)
> Caused by: java.net.UnknownHostException
> at
> org.apache.geode.internal.net.SocketCreator.getLocalHost(SocketCreator.java:285)
> at
> org.apache.geode.management.internal.ManagementAgent.configureAndStart(ManagementAgent.java:310)
> at
> org.apache.geode.management.internal.ManagementAgent.startAgent(ManagementAgent.java:131)
> ... 14 more
> {code}
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