OBIEE .lok .DAT files

Came across this issue today took me an age to work out what was wrong then I knocked up a couple of finds and boom all sorted. Anyway the below is more for self reference in case I come across it again.

<Error> <Store> <BEA-280061> <The persistent store “_WLS_AdminServer” could not be deployed: weblogic.store.PersistentStoreException: java.io.IOException: [Store:280021]There was an error while opening the file store file “_WLS_ADMINSERVER000000.DAT”

Other Errors that can be encountered are

There are 1 nested errors:
 weblogic.management.ManagementException: Unable to obtain lock on /u01/app/oracle/admin/soa_domains/aserver/soa_domain/servers/AdminServer/tmp/AdminServer.lok. Server may already be running at weblogic.management.internal.ServerLocks.getServerLock(ServerLocks.java:159)
 <Warning> <BEA-171520> <Could not obtain an exclusive lock for directory: /u01/app/oracle/admin/soa_domains/aserver/soa_domain/servers/AdminServer/data/ldap/ldapfiles. Waiting for 10 seconds and then retrying in case existing WebLogic Server is still shutting down.><Warning> <BEA-171520> <Could not obtain an exclusive lock for directory: /u01/app/oracle/admin/soa_domains/aserver/soa_domain/servers/AdminServer/data/ldap/ldapfiles. Waiting for 10 seconds and then retrying in case existing WebLogic Server is still shutting down.>

or

<Security> <BEA-090082> <Security initializing using security realm myrealm.>
 <Error> <Store> <BEA-280061> <The persistent store “_WLS_AdminServer” could not be deployed: weblogic.store.PersistentStoreException: [Store:280105]The persistent file store “_WLS_AdminServer” cannot open file _WLS_ADMINSERVER000000.DAT. weblogic.store.PersistentStoreException: [Store:280105]The persistent file store “_WLS_AdminServer” cannot open file _WLS_ADMINSERVER000000.DAT. at weblogic.store.io.file.Heap.open(Heap.java:325)

To resolve the above issues, clear below .lok and .DAT files

find . -name “*.DAT” -print -exec rm {} \;
 find . -name “*.lok” -print -exec rm {} \;

For Admin server
 $DOMAIN_HOME/servers/<server name>/tmp/Adminserver.lok
 $DOMAIN_HOME/servers/<server name>/data/ldap/ldapfiles/Embedded.lok
 $DOMAIN_HOME/servers/<server name>/data/store/default/_WLS_ADMINSERVER000000.DAT
 $DOMAIN_HOME/servers/<server name>/data/store/diagnostics/WLS_DIAGNOSTICS000000.DAT

For Managed servers

$DOMAIN_HOME/servers/<server name>/tmp/<servername>.lok
 $DOMAIN_HOME/servers/<server name>/data/ldap/ldapfiles/Embedded.lok
 $DOMAIN_HOME/servers/<server name>/data/ldap/store/default/_WLS_<servername>000000.DAT
 $DOMAIN_HOME/servers/<server name>/data/ldap/store/diagnostics/WLS_DIAGNOSTICS000000.DAT