WSO2 Identity Server pattern clustering - wso2

Question

We are in production with WSO2 Identity Server 5.8.0
We configured the system according to the pattern 1 as described here
When we checked the symlink of config and governance we noticed that only config has a symlink icon as showed in this image
Moreover we registered some Service Providers but in the management interface they are not listed although they are present in the table. This seems to be related to the fact that we changed the WSO2 IS admin username after we created the Service Providers and in the table sp_app there is the old username (I can't understand the reason)
Her our configurations about pattern-1. We are using postgreSQL DB.
What we did is the following:
creation of db username_db. Here we executed the following SQL scripts
dbScripts/bps/bpel/create/postgresql.sql
dbScripts/content/postgresql.sql
dbScripts/identity/postgresql.sql
dbScripts/identity/uma/postgresql.sql
dbScripts/metrics/postgresql.sql
creation of db wso2sharedregistry. Here we executed the sql contained in
dbScripts/postgresql.sql
We configigured the following datasource in the master-datasources.xml file
<datasources-configuration xmlns:svns="http://org.wso2.securevault/configuration">
<providers>
<provider>org.wso2.carbon.ndatasource.rdbms.RDBMSDataSourceReader</provider>
</providers>
<datasources>
<datasource>
<name>WSO2_CARBON_DB</name>
<description>The datasource used for registry and user manager</description>
<jndiConfig>
<name>jdbc/usernameDB</name>
</jndiConfig>
<definition type="RDBMS">
<configuration>
<url>jdbc:postgresql://xxxxx:yyyy/username_db</url>
<username>username</username>
<password>username</password>
<driverClassName>org.postgresql.Driver</driverClassName>
<maxActive>50</maxActive>
<maxWait>60000</maxWait>
<testOnBorrow>true</testOnBorrow>
<validationInterval>30000</validationInterval>
<defaultAutoCommit>true</defaultAutoCommit>
<!--<validationQuery>SELECT 1</validationQuery>-->
</configuration>
</definition>
</datasource>
<datasource>
<name>WSO2_SHAREDREGISTRY_DB</name>
<description>The datasource used for registry and user manager</description>
<jndiConfig>
<name>jdbc/WSO2sharedbd</name>
</jndiConfig>
<definition type="RDBMS">
<configuration>
<url>jdbc:postgresql://xxxxx:yyyy/wso2sharedregistry</url>
<username>username</username>
<password>username</password>
<driverClassName>org.postgresql.Driver</driverClassName>
<maxActive>50</maxActive>
<maxWait>60000</maxWait>
<testOnBorrow>true</testOnBorrow>
<validationInterval>30000</validationInterval>
<defaultAutoCommit>true</defaultAutoCommit>
<!--<validationQuery>SELECT 1</validationQuery>-->
</configuration>
</definition>
</datasource>
</datasources>
</datasources-configuration>
We configured the registry.xml in this way
<?xml version="1.0" encoding="ISO-8859-1"?>
<wso2registry>
<currentDBConfig>wso2registry</currentDBConfig>
<readOnly>false</readOnly>
<enableCache>true</enableCache>
<registryRoot>/</registryRoot>
<dbConfig name="wso2registry">
<dataSource>jdbc/WSO2CarbonDB</dataSource>
</dbConfig>
<dbConfig name="wso2sharedregistry">
<dataSource>jdbc/WSO2sharedbd</dataSource>
</dbConfig>
<handler class="org.wso2.carbon.identity.entitlement.policy.finder.registry.RegistryPolicyHandler">
<filter class="org.wso2.carbon.identity.entitlement.policy.finder.registry.RegistryPolicyMediaTypeMatcher">
<property name="mediaType">application/xacml-policy+xml</property>
</filter>
</handler>
<remoteInstance url="https://localhost:9443/registry">
<id>instanceid</id>
<dbConfig>wso2sharedregistry</dbConfig>
<readOnly>false</readOnly>
<enableCache>false</enableCache>
<registryRoot>/</registryRoot>
</remoteInstance>
<mount path="/_system/governance" overwrite="true">
<instanceId>instanceid</instanceId>
<targetPath>/_system/governance</targetPath>
</mount>
<mount path="/_system/config" overwrite="true">
<instanceId>instanceid</instanceId>
<targetPath>/_system/nodes</targetPath>
</mount>
<indexingConfiguration>
<startIndexing>false</startIndexing>
<startingDelayInSeconds>35</startingDelayInSeconds>
<indexingFrequencyInSeconds>5</indexingFrequencyInSeconds>
<!--number of resources submit for given indexing thread -->
<batchSize>40</batchSize>
<!--number of worker threads for indexing -->
<indexerPoolSize>40</indexerPoolSize>
<!-- location storing the time the indexing took place-->
<lastAccessTimeLocation>/_system/local/repository/components/org.wso2.carbon.registry/indexing/lastaccesstime</lastAccessTimeLocation>
<!-- the indexers that implement the indexer interface for a relevant media type/(s) -->
<indexers>
<indexer class="org.wso2.carbon.registry.indexing.indexer.MSExcelIndexer" mediaTypeRegEx="application/vnd.ms-excel"/>
<indexer class="org.wso2.carbon.registry.indexing.indexer.MSPowerpointIndexer" mediaTypeRegEx="application/vnd.ms-powerpoint"/>
<indexer class="org.wso2.carbon.registry.indexing.indexer.MSWordIndexer" mediaTypeRegEx="application/msword"/>
<indexer class="org.wso2.carbon.registry.indexing.indexer.PDFIndexer" mediaTypeRegEx="application/pdf"/>
<indexer class="org.wso2.carbon.registry.indexing.indexer.XMLIndexer" mediaTypeRegEx="application/xml"/>
<indexer class="org.wso2.carbon.registry.indexing.indexer.XMLIndexer" mediaTypeRegEx="application/(.)+\+xml"/>
<indexer class="org.wso2.carbon.registry.indexing.indexer.PlainTextIndexer" mediaTypeRegEx="application/swagger\+json"/>
<indexer class="org.wso2.carbon.registry.indexing.indexer.PlainTextIndexer" mediaTypeRegEx="application/(.)+\+json"/>
<indexer class="org.wso2.carbon.registry.indexing.indexer.PlainTextIndexer" mediaTypeRegEx="text/(.)+"/>
<indexer class="org.wso2.carbon.registry.indexing.indexer.PlainTextIndexer" mediaTypeRegEx="application/x-javascript"/>
</indexers>
<exclusions>
<exclusion pathRegEx="/_system/config/repository/dashboards/gadgets/swfobject1-5/.*[.]html"/>
<exclusion pathRegEx="/_system/local/repository/components/org[.]wso2[.]carbon[.]registry/mount/.*"/>
</exclusions>
</indexingConfiguration>
<versionResourcesOnChange>false</versionResourcesOnChange>
<!-- NOTE: You can edit the options under "StaticConfiguration" only before the
startup. -->
<staticConfiguration>
<versioningProperties>true</versioningProperties>
<versioningComments>true</versioningComments>
<versioningTags>true</versioningTags>
<versioningRatings>true</versioningRatings>
</staticConfiguration>
</wso2registry>
Any tips in how we can:
show the previously registered Service Providers
create the correct registry symlink