Package org.apache.ambari.server.checks

Class Summary

Class	Description
AmbariMetricsHadoopSinkVersionCompatibilityCheck	This pre upgrade check verifies if the Ambari Metrics Hadoop Sink package version on all hosts is the expected one corresponding to the stack version.
AutoStartDisabledCheck	The AutoStartDisabledCheck class is used to check that the cluster does not have auto-restart enabled.
ClusterCheck	A base implementation of UpgradeCheck which offers injected helpers and access to information about repositories and the cluster.
ComponentsExistInRepoCheck	The ComponentsExistInRepoCheck is used to determine if any of the components scheduled for upgrade do not exist in the target repository or stack.
ComponentsInstallationCheck	Checks that service components are installed.
ConfigurationMergeCheck	Checks for configuration merge conflicts.
ConfigurationMergeCheck.MergeDetail	Used to represent specific detail about merge failures.
DatabaseConsistencyChecker
DatabaseConsistencyChecker.CheckHelperAuditModule	Extension of audit logger module
DatabaseConsistencyChecker.CheckHelperControllerModule	Extension of main controller module
DatabaseConsistencyCheckHelper
HardcodedStackVersionPropertiesCheck	Checks for properties that contain hardcoded CURRENT hdp version string.
HealthCheck	Checks that there are no WARNING/CRITICAL alerts on current cluster.
HostMaintenanceModeCheck	The HostMaintenanceModeCheck is used to provide a warning if any hosts are in maintenance mode.
HostsHeartbeatCheck	Checks that all hosts are heartbeating with the Ambari Server.
HostsMasterMaintenanceCheck	Checks that all hosts in maintenance state do not have master components.
HostsRepositoryVersionCheck	Checks that all hosts have particular repository version.
InstallPackagesCheck	Checks if Install Packages needs to be re-run
KerberosAdminPersistedCredentialCheck	The KerberosAdminPersistedCredentialCheck class is used to check that the Kerberos administrator credentials are stored in the persisted credential store when Kerberos is enabled.
LZOCheck	The LZOCheck is used to check that the LZO codec enabled in the core-site config fnd warning if any hosts require LZO, it should be installed before starting the upgrade.
MissingOsInRepoVersionCheck	This checks if the source and target version has an entry for each OS type in the cluster.
MpackInstallChecker	Mpack Install Checker
MpackInstallChecker.MpackCheckerAuditModule	Extension of audit logger module
OrchestrationQualification	The OrchestrationQualification class is used to determine if the check is required to run based on the RepositoryType.
PluginChecksLoadedCheck	The PluginChecksLoadedCheck class is used to display warnings if there were any stack plugin checks which were not able to be loaded.
PreviousUpgradeCompleted	The PreviousUpgradeCompleted class is used to determine if there is a prior upgrade or downgrade which has not completed.
RequiredServicesInRepositoryCheck	The RequiredServicesInRepositoryCheck is used to ensure that if there are any services which require other services to also be included in the upgrade that they are included in the repository.
ServiceCheckValidityCheck	Checks that all Service Checks are less recent than last configuration update for given services.
ServicePresenceCheck	Checks if Atlas service is present.
ServicesMaintenanceModeCheck	Checks to ensure that services are not in maintenance mode.
ServicesUpCheck	The ServicesUpCheck class is used to ensure that services are up "enough" before an upgrade begins.
UpgradeCheckRegistry	The UpgradeCheckRegistry contains the ordered list of all pre-upgrade checks.
UpgradeCheckRegistry.PluginUpgradeChecks	Encapsulates information about which plugins could and could not be loaded from a stack.
UpgradeCheckRegistryProvider	The UpgradeCheckRegistryProvider is a provider which binds any requests for the UpgradeCheckRegistry.
UpgradeTypeQualification	The UpgradeTypeQualification class is used to determine if the check is required to run based on the UpgradeType.
VersionMismatchCheck	Warns about host components whose upgrade state is VERSION_MISMATCH.

Enum Summary

Enum	Description
DatabaseConsistencyCheckResult	Enum representing the possible outcomes of the on-start database consistency check.