Hello everyone.
I intalled 4 node with hosted engine, everything works fine exept the dashboard. it doesn't collect any data and is always empty of information.
searching around I found out that the problem could be the dwh service, inside the log there is an error:

## log file
2020-02-19 17:46:14|ETL Service Started
ovirtEngineDbDriverClass|org.postgresql.Driver
ovirtEngineHistoryDbJdbcConnection|jdbc:postgresql://localhost:5432/ovirt_engine_history?sslfactory=org.postgresql.ssl.NonValidatingFactory
hoursToKeepDaily|0
hoursToKeepHourly|720
ovirtEngineDbPassword|**********************
runDeleteTime|3
ovirtEngineDbJdbcConnection|jdbc:postgresql://localhost:5432/engine?sslfactory=org.postgresql.ssl.NonValidatingFactory
runInterleave|60
limitRows|limit 1000
ovirtEngineHistoryDbUser|ovirt_engine_history
ovirtEngineDbUser|engine
deleteIncrement|10
timeBetweenErrorEvents|300000
hoursToKeepSamples|24
deleteMultiplier|1000
lastErrorSent|2011-07-03 12:46:47.000000
etlVersion|4.3.8
dwhAggregationDebug|false
dwhUuid|5c4ffc1b-928f-4d06-a40f-bb34ba11c7f2
ovirtEngineHistoryDbDriverClass|org.postgresql.Driver
ovirtEngineHistoryDbPassword|**********************
Exception in component tJDBCInput_2
org.postgresql.util.PSQLException: Bad value for type short : 201905
        at org.postgresql.jdbc2.AbstractJdbc2ResultSet.getShort(AbstractJdbc2ResultSet.java:2098)
        at ovirt_engine_dwh.osenumupdate_4_3.OsEnumUpdate.tJDBCInput_2Process(OsEnumUpdate.java:2354)
        at ovirt_engine_dwh.osenumupdate_4_3.OsEnumUpdate.tRowGenerator_1Process(OsEnumUpdate.java:1921)
        at ovirt_engine_dwh.osenumupdate_4_3.OsEnumUpdate.tJDBCInput_4Process(OsEnumUpdate.java:1376)
        at ovirt_engine_dwh.osenumupdate_4_3.OsEnumUpdate.tJDBCConnection_1Process(OsEnumUpdate.java:873)
        at ovirt_engine_dwh.osenumupdate_4_3.OsEnumUpdate.tJDBCConnection_2Process(OsEnumUpdate.java:736)
        at ovirt_engine_dwh.osenumupdate_4_3.OsEnumUpdate.runJobInTOS(OsEnumUpdate.java:4396)
        at ovirt_engine_dwh.osenumupdate_4_3.OsEnumUpdate.runJob(OsEnumUpdate.java:4099)
        at ovirt_engine_dwh.samplerunjobs_4_3.SampleRunJobs.tRunJob_4Process(SampleRunJobs.java:947)
        at ovirt_engine_dwh.samplerunjobs_4_3.SampleRunJobs.tJDBCConnection_2Process(SampleRunJobs.java:767)
        at ovirt_engine_dwh.samplerunjobs_4_3.SampleRunJobs.tJDBCConnection_1Process(SampleRunJobs.java:642)
        at ovirt_engine_dwh.samplerunjobs_4_3.SampleRunJobs$2.run(SampleRunJobs.java:2683)

## SERVICE STATUS
● ovirt-engine-dwhd.service - oVirt Engine Data Warehouse
   Loaded: loaded (/usr/lib/systemd/system/ovirt-engine-dwhd.service; enabled; vendor preset: disabled)
   Active: active (running) since Wed 2020-02-19 17:46:14 CET; 16h ago
 Main PID: 6425 (ovirt-engine-dw)
   CGroup: /system.slice/ovirt-engine-dwhd.service
           ├─6425 /usr/bin/python /usr/share/ovirt-engine-dwh/services/ovirt-engine-dwhd/ovirt-engine-dwhd.py --redirect-output --systemd=notify start
           └─6512 ovirt-engine-dwhd -Dorg.ovirt.engine.dwh.settings=/tmp/tmparNn_x/settings.properties -Xms1g -Xmx1g -classpath /usr/share/ovirt-engine-dwh/lib/*::/usr/share/java/dom4j.jar:/usr/share/java/apache-commons-collections.jar:/usr/share/java/postgresql-jdbc.jar ovirt_engine_dwh.historyetl_4_3.HistoryETL --context=Default

Feb 19 17:46:14 engine.ovirt.local systemd[1]: Starting oVirt Engine Data Warehouse...
Feb 19 17:46:14 engine.ovirt.local systemd[1]: Started oVirt Engine Data Warehouse.
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