Description of problem:

after migration from 3.6 el6 -> 3.6 el7 (FYA in this step there was upgrade to postgresql 9.x and DBs were converted to newer format via `postgresql-setup upgrade') -> 4.0 el7 dwhd has psql exception in log and I can see following event in Admin Portal:

ETL service sampling has encountered an error. Please consult the service log for more details.

2016-04-01 14:59:41|ETL Service Started
Exception in component tJDBCInput_63
org.postgresql.util.PSQLException: ERROR: relation "v3_0_latest_disks_vm_map_view" does not exist
  Position: 120
        at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2157)
        at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1886)
        at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:555)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:403)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:283)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_63Process(ConfigurationSync.java:60390)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_61Process(ConfigurationSync.java:34858)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_28Process(ConfigurationSync.java:34291)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_7Process(ConfigurationSync.java:32445)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_26Process(ConfigurationSync.java:31070)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_6Process(ConfigurationSync.java:28303)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_24Process(ConfigurationSync.java:25551)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_5Process(ConfigurationSync.java:23572)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_22Process(ConfigurationSync.java:21643)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_4Process(ConfigurationSync.java:19005)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_34Process(ConfigurationSync.java:16414)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_33Process(ConfigurationSync.java:15200)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_20Process(ConfigurationSync.java:13991)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_3Process(ConfigurationSync.java:12608)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_18Process(ConfigurationSync.java:11622)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_1Process(ConfigurationSync.java:10063)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_15Process(ConfigurationSync.java:8607)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_2Process(ConfigurationSync.java:7224)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_11Process(ConfigurationSync.java:6251)
        at ovirt_engine_dwh.configurationsync_4_0.ConfigurationSync.tJDBCInput_9Process(ConfigurationSync.java:4439)

2016-04-01 15:02:20|y0g8GP|Cj8dZA|35VTZi|OVIRT_ENGINE_DWH|SampleRunJobs|Default|6|Java Exception|tRunJob_1|java.lang.RuntimeException:Child job running failed|1
Exception in component tRunJob_1
java.lang.RuntimeException: Child job running failed
        at ovirt_engine_dwh.sampletimekeepingjob_4_0.SampleTimeKeepingJob.tRunJob_1Process(SampleTimeKeepingJob.java:6028)
        at ovirt_engine_dwh.sampletimekeepingjob_4_0.SampleTimeKeepingJob.tJDBCInput_2Process(SampleTimeKeepingJob.java:5773)
        at ovirt_engine_dwh.sampletimekeepingjob_4_0.SampleTimeKeepingJob.tJDBCConnection_1Process(SampleTimeKeepingJob.java:4400)
        at ovirt_engine_dwh.sampletimekeepingjob_4_0.SampleTimeKeepingJob.tJDBCConnection_2Process(SampleTimeKeepingJob.java:4275)
        at ovirt_engine_dwh.sampletimekeepingjob_4_0.SampleTimeKeepingJob.tRowGenerator_2Process(SampleTimeKeepingJob.java:4144)
        at ovirt_engine_dwh.sampletimekeepingjob_4_0.SampleTimeKeepingJob.tJDBCInput_3Process(SampleTimeKeepingJob.java:3544)
        at ovirt_engine_dwh.sampletimekeepingjob_4_0.SampleTimeKeepingJob.tJDBCInput_5Process(SampleTimeKeepingJob.java:2923)
        at ovirt_engine_dwh.sampletimekeepingjob_4_0.SampleTimeKeepingJob.tJDBCInput_4Process(SampleTimeKeepingJob.java:2236)
        at ovirt_engine_dwh.sampletimekeepingjob_4_0.SampleTimeKeepingJob.tJDBCConnection_3Process(SampleTimeKeepingJob.java:1580)
        at ovirt_engine_dwh.sampletimekeepingjob_4_0.SampleTimeKeepingJob$2.run(SampleTimeKeepingJob.java:9721)


Version-Release number of selected component (if applicable):
ovirt-engine-dwh-4.0.0-0.0.master.20160327105937.20160327105357.git7b654cf.el7.noarch

How reproducible:
100%

Steps to Reproduce:
1. migrate from 3.6 el7 to 4.0
2. start dwhd
3. observe ovirt-engine-dwhd.log and events in Admin Portal

Actual results:
dwhd does not work correctly

Expected results:
should work

Additional info: