Dmitry Lysnichenko created AMBARI-23403:
-------------------------------------------
Summary: Upgrade throws NullPointerException when configuration
type is not selected
Key: AMBARI-23403
URL: https://issues.apache.org/jira/browse/AMBARI-23403
Project: Ambari
Issue Type: Bug
Reporter: Dmitry Lysnichenko
Assignee: Dmitry Lysnichenko
{code}
java.lang.NullPointerException
at
org.apache.ambari.server.state.UpgradeHelper.processConfigurationsIfRequired(UpgradeHelper.java:1032)
at
org.apache.ambari.server.state.UpgradeHelper.updateDesiredRepositoriesAndConfigs(UpgradeHelper.java:849)
at
org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:118)
at
org.apache.ambari.server.serveraction.upgrades.UpdateDesiredRepositoryAction.updateDesiredRepositoryVersion(UpdateDesiredRepositoryAction.java:166)
at
org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:128)
at
org.apache.ambari.server.serveraction.upgrades.UpdateDesiredRepositoryAction.execute(UpdateDesiredRepositoryAction.java:104)
at
org.apache.ambari.server.serveraction.ServerActionExecutor$Worker.execute(ServerActionExecutor.java:550)
at
org.apache.ambari.server.serveraction.ServerActionExecutor$Worker.run(ServerActionExecutor.java:466)
at java.lang.Thread.run(Thread.java:745)
{code}
The main issue here is that if any configuration types in the "clusterconfig"
table (in the ambari-server DB) happen to not be selected (no versions of that
config type have "selected"= "1", then this NullPointerException is thrown.
The Ambari Server Upgrade code should probably handle this exception case more
gracefully, by adding a check for null in the {code}UpgradeHelper{code} class,
and returning a more useful error message. Perhaps the customer should get a
message indicating the problem with the config types.
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