Jonathan Hurley created AMBARI-17946:
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Summary: Initial Upgrade Checks Can Fail With
ConcurrentModificationException
Key: AMBARI-17946
URL: https://issues.apache.org/jira/browse/AMBARI-17946
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: 2.2.0
Reporter: Jonathan Hurley
Assignee: Jonathan Hurley
Priority: Critical
Fix For: 2.4.0
Intermittently, the pre-stack upgrade checks will fail with a
{{ConcurrentModificationException}}:
{code}
WARNING: A HTTP GET method, public javax.ws.rs.core.Response
org.apache.ambari.server.api.services.PreUpgradeCheckService.getPreUpgradeChecks(java.lang.String,javax.ws.rs.core.HttpHeaders,javax.ws.rs.core.UriInfo),
should not consume any entity.
27 Jul 2016 04:21:27,035 ERROR [ambari-client-thread-35] CheckHelper:120 -
Check HOSTS_MASTER_MAINTENANCE failed
java.util.ConcurrentModificationException
at
java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:711)
at
java.util.LinkedHashMap$LinkedValueIterator.next(LinkedHashMap.java:739)
at
org.apache.ambari.server.checks.HostsMasterMaintenanceCheck.perform(HostsMasterMaintenanceCheck.java:83)
at
org.apache.ambari.server.state.CheckHelper.performChecks(CheckHelper.java:99)
at
org.apache.ambari.server.controller.internal.PreUpgradeCheckResourceProvider.getResources(PreUpgradeCheckResourceProvider.java:192)
at
org.apache.ambari.server.controller.internal.ClusterControllerImpl$ExtendedResourceProviderWrapper.queryForResources(ClusterControllerImpl.java:966)
at
org.apache.ambari.server.controller.internal.ClusterControllerImpl.getResources(ClusterControllerImpl.java:141)
{code}
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