Tom Beerbower created AMBARI-12262:
--------------------------------------
Summary: ConcurrentModificationException during add host to config
group
Key: AMBARI-12262
URL: https://issues.apache.org/jira/browse/AMBARI-12262
Project: Ambari
Issue Type: Bug
Reporter: Tom Beerbower
Assignee: Tom Beerbower
Fix For: 2.1.0
1. Provision a cluster with the attached blueprint. Ambari will create 2 config
groups for HDFS and YARN besides the default one.
2. Install the ambari-agent on a new host and let it register to Ambari
3. Add the newly registered host to the cluster (POST
/clusters/${getClusterName()}/hosts)
4. Add the components from slave_1 host group to the new host
5. Try to add the new host to both HDFS:slave_1 and YARN:slave_1 host group
Stack trace ...
{code}
javax.persistence.PersistenceException:
java.util.ConcurrentModificationException
at
org.eclipse.persistence.internal.jpa.QueryImpl.executeUpdate(QueryImpl.java:308)
at
org.apache.ambari.server.orm.dao.DaoUtils.executeUpdate(DaoUtils.java:88)
at
org.apache.ambari.server.orm.dao.ConfigGroupConfigMappingDAO.removeAllByGroup(ConfigGroupConfigMappingDAO.java:96)
at
org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:60)
at
org.apache.ambari.server.state.configgroup.ConfigGroupImpl.persistConfigMapping(ConfigGroupImpl.java:403)
...
Caused by: java.util.ConcurrentModificationException
at
java.util.IdentityHashMap$IdentityHashMapIterator.nextIndex(IdentityHashMap.java:734)
at java.util.IdentityHashMap$KeyIterator.next(IdentityHashMap.java:825)
at
org.eclipse.persistence.internal.sessions.CollectionChangeRecord.mergeRecord(CollectionChangeRecord.java:260)
at
org.eclipse.persistence.internal.sessions.ObjectChangeSet.mergeObjectChanges(ObjectChangeSet.java:740)
at
org.eclipse.persistence.internal.sessions.UnitOfWorkChangeSet.mergeObjectChanges(UnitOfWorkChangeSet.java:492)
at
org.eclipse.persistence.internal.sessions.UnitOfWorkChangeSet.mergeUnitOfWorkChangeSet(UnitOfWorkChangeSet.java:509)
at
org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.writeChanges(RepeatableWriteUnitOfWork.java:466)
at
org.eclipse.persistence.internal.jpa.EntityManagerImpl.flush(EntityManagerImpl.java:863)
at
org.eclipse.persistence.internal.jpa.QueryImpl.performPreQueryFlush(QueryImpl.java:963)
at
org.eclipse.persistence.internal.jpa.QueryImpl.executeUpdate(QueryImpl.java:296)
{code}
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