Description of problem:
Not sure what the cause is, but I'm seeing this exception on engine.log:
2017-03-29 02:17:43,213-04 ERROR [org.ovirt.engine.core.bll.provider.GetAllProvidersQuery] (default task-32) [0806cd42-f579-4090-9f22-7e8620379cbc] Query 'GetAllProvidersQuery' failed: No enum constant org.ovirt
.engine.core.common.businessentities.ProviderType.http://localhost:9696
2017-03-29 02:17:43,213-04 ERROR [org.ovirt.engine.core.bll.provider.GetAllProvidersQuery] (default task-32) [0806cd42-f579-4090-9f22-7e8620379cbc] Exception: java.lang.IllegalArgumentException: No enum constant
 org.ovirt.engine.core.common.businessentities.ProviderType.http://localhost:9696
        at java.lang.Enum.valueOf(Enum.java:238) [rt.jar:1.8.0_121]
        at org.ovirt.engine.core.common.businessentities.ProviderType.valueOf(ProviderType.java:11) [common.jar:]
        at org.ovirt.engine.core.dao.provider.ProviderDaoImpl$ProviderRowMapper.mapRow(ProviderDaoImpl.java:134) [dal.jar:]
        at org.ovirt.engine.core.dao.provider.ProviderDaoImpl$ProviderRowMapper.mapRow(ProviderDaoImpl.java:119) [dal.jar:]
        at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:93) [spring-jdbc.jar:4.2.4.RELEASE]
        at org.springframework.jdbc.core.RowMapperResultSetExtractor.extractData(RowMapperResultSetExtractor.java:60) [spring-jdbc.jar:4.2.4.RELEASE]
        at org.springframework.jdbc.core.JdbcTemplate$1.doInPreparedStatement(JdbcTemplate.java:693) [spring-jdbc.jar:4.2.4.RELEASE]
        at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:629) [spring-jdbc.jar:4.2.4.RELEASE]
        at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:680) [spring-jdbc.jar:4.2.4.RELEASE]
        at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:712) [spring-jdbc.jar:4.2.4.RELEASE]
        at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:762) [spring-jdbc.jar:4.2.4.RELEASE]
        at org.ovirt.engine.core.dal.dbbroker.PostgresDbEngineDialect$PostgresSimpleJdbcCall.executeCallInternal(PostgresDbEngineDialect.java:152) [dal.jar:]
        at org.ovirt.engine.core.dal.dbbroker.PostgresDbEngineDialect$PostgresSimpleJdbcCall.doExecute(PostgresDbEngineDialect.java:118) [dal.jar:]
        at org.springframework.jdbc.core.simple.SimpleJdbcCall.execute(SimpleJdbcCall.java:198) [spring-jdbc.jar:4.2.4.RELEASE]
        at org.ovirt.engine.core.dal.dbbroker.SimpleJdbcCallsHandler.executeImpl(SimpleJdbcCallsHandler.java:135) [dal.jar:]
        at org.ovirt.engine.core.dal.dbbroker.SimpleJdbcCallsHandler.executeReadList(SimpleJdbcCallsHandler.java:105) [dal.jar:]
        at org.ovirt.engine.core.dao.DefaultReadDao.getAll(DefaultReadDao.java:81) [dal.jar:]
        at org.ovirt.engine.core.bll.provider.GetAllProvidersQuery.executeQueryCommand(GetAllProvidersQuery.java:23) [bll.jar:]
        at org.ovirt.engine.core.bll.QueriesCommandBase.executeCommand(QueriesCommandBase.java:110) [bll.jar:]
        at org.ovirt.engine.core.dal.VdcCommandBase.execute(VdcCommandBase.java:33) [dal.jar:]
        at org.ovirt.engine.core.bll.executor.DefaultBackendQueryExecutor.execute(DefaultBackendQueryExecutor.java:14) [bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runQueryImpl(Backend.java:566) [bll.jar:]
        at org.ovirt.engine.core.bll.Backend.runQuery(Backend.java:534) [bll.jar:]
        at sun.reflect.GeneratedMethodAccessor78.invoke(Unknown Source) [:1.8.0_121]


Version-Release number of selected component (if applicable):
ovirt-engine-4.2.0-0.0.master.20170328185427.gitb0842bf.el7.centos.noarch