[ovirt-users] web 404 after reinstall ovirt-engine

[董青龙]

Hi, all
        I installed ovirt-engine 4.1.8.2 for the second time and I got "successful" after I excuted "engine-setup". But I got "404" when I tried to access webadmin portal using "https://FQDN/ovirt-engine". By the way, I could access the web after I installed ovirt-engine for the first time. Then I excuted "engine-cleanup" and "yum remove ovirt-engine" and installed ovirt-engine for the second time. I also tried to remove ovirt-engine-dwh and postgresql but after I reinstalled ovirt-engine I still got "404".
        Can I fix this problem? Hope some can help, thanks!
        Here are some logs in "/var/log/ovirt-engine/engine.log":
...
2018-01-19 12:56:06,288+08 ERROR [org.ovirt.engine.ui.frontend.server.dashboard.DashboardDataServlet] (ServerService Thread Pool -- 61) [] Could not access engine's DWH configuration table: java.sql.SQLException: javax.resource.ResourceException: IJ000453: Unable to get managed connection for java:/ENGINEDataSource
...
Caused by: javax.resource.ResourceException: IJ000453: Unable to get managed connection for java:/ENGINEDataSource
...
Caused by: javax.resource.ResourceException: IJ031084: Unable to create connection
...
Caused by: org.postgresql.util.PSQLException: FATAL: password authentication failed for user "engine"
...
2018-01-19 12:56:06,292+08 WARN  [org.ovirt.engine.ui.frontend.server.dashboard.DashboardDataServlet] (ServerService Thread Pool -- 61) [] No valid DWH configurations were found, assuming DWH database isn't setup.
2018-01-19 12:56:06,292+08 INFO  [org.ovirt.engine.ui.frontend.server.dashboard.DashboardDataServlet] (ServerService Thread Pool -- 61) [] Dashboard DB query cache has been disabled.
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