RMAN Duplicate failed , errors RMAN-05501: aborting duplication of target database,RMAN-03015,RMAN-04006,ORA-12514

rman duplicate command failed with error while allocating  multiple channel through run block

$ cat Proddb_standby_build.sh

connect target sys/Password@PRODDB_PRIM

connect auxiliary  sys/Password@PRODDB_OCI_STDBY

run {

allocate channel ch1 type disk;

allocate channel ch2 type disk;

allocate channel ch3 type disk;

allocate channel ch4 type disk;

allocate channel ch5 type disk;

allocate channel ch6 type disk;

allocate auxiliary channel ch7 type disk;

allocate auxiliary channel ch8 type disk;

DUPLICATE TARGET DATABASE FOR STANDBY FROM ACTIVE DATABASE DORECOVER;

}

error details:

$ tail -90f Proddb_standby_build.log

Spooling started in log file: /home/oracle/scripts/Migration/proddb/Proddb_standby_build.log

Recovery Manager19.10.0.0.0

RMAN>

PL/SQL package SYS.DBMS_BACKUP_RESTORE version 19.08.00.00 in TARGET database is not current

PL/SQL package SYS.DBMS_RCVMAN version 19.08.00.00 in TARGET database is not current

connected to target database: PRODDB (DBID=2143832746)

RMAN>

connected to auxiliary database: PRODDB (not mounted)

RMAN> 2> 3> 4> 5> 6> 7> 8> 9> 10> 11>

using target database control file instead of recovery catalog

allocated channel: ch1

channel ch1: SID=1565 instance=proddb1 device type=DISK

allocated channel: ch2

channel ch2: SID=1711 instance=proddb1 device type=DISK

allocated channel: ch3

channel ch3: SID=1778 instance=proddb1 device type=DISK

allocated channel: ch4

channel ch4: SID=1850 instance=proddb1 device type=DISK

allocated channel: ch5

channel ch5: SID=2134 instance=proddb1 device type=DISK

allocated channel: ch6

channel ch6: SID=2205 instance=proddb1 device type=DISK

allocated channel: ch7

channel ch7: SID=2411 device type=DISK

allocated channel: ch8

channel ch8: SID=2477 device type=DISK

Starting Duplicate Db at 19-OCT-21

current log archived

contents of Memory Script:

{

   backup as copy reuse

   passwordfile auxiliary format  '/u02/app/oracle/product/19.0.0.0/dbhome_2/dbs/orapwproddb11'   ;

}

executing Memory Script

Starting backup at 19-OCT-21

Finished backup at 19-OCT-21

duplicating Online logs to Oracle Managed File (OMF) location

duplicating Datafiles to Oracle Managed File (OMF) location

contents of Memory Script:

{

   sql clone "alter system set  control_files =

  ''+DATAC1/PRODDB_OCI/CONTROLFILE/current.328.1079736267'' comment=

 ''Set by RMAN'' scope=spfile";

   backup as copy current controlfile for standby auxiliary format  '+DATAC1/PRODDB_OCI/CONTROLFILE/current.328.1079736267';

   sql clone "alter system set  control_files =

  ''+DATAC1/PRODDB_OCI/CONTROLFILE/current.328.1079736267'' comment=

 ''Set by RMAN'' scope=spfile";

   shutdown clone immediate;

   startup clone nomount;

}

executing Memory Script

sql statement: alter system set  control_files =   ''+DATAC1/PRODDB_OCI/CONTROLFILE/current.328.1079736267'' comment= ''Set by RMAN'' scope=spfile

Starting backup at 19-OCT-21

channel ch1: starting datafile copy

copying standby control file

output file name=+DATAC1/PRODDB_OCI/CONTROLFILE/current.328.1079736267 tag=TAG20211019T015841

channel ch1: datafile copy complete, elapsed time: 00:00:03

Finished backup at 19-OCT-21

sql statement: alter system set  control_files =   ''+DATAC1/PRODDB_OCI/CONTROLFILE/current.328.1079736267'' comment= ''Set by RMAN'' scope=spfile

Oracle instance shut down

released channel: ch1

released channel: ch2

released channel: ch3

released channel: ch4

released channel: ch5

released channel: ch6

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03002: failure of Duplicate Db command at 10/19/2021 01:59:21

RMAN-05501: aborting duplication of target database

RMAN-03015: error occurred in stored script Memory Script

RMAN-04006: error from auxiliary database: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor

Solution: Configure parallelism in rman and run duplicate 

Connect to rman target:

rman 

connect target sys/Password@PRODDB_PRIM  

connect auxiliary  sys/Password@PRODDB_OCI_STDBY

Configure parallelism:

CONFIGURE DEVICE TYPE DISK PARALLELISM 8 BACKUP TYPE TO BACKUPSET;

Duplicate will run without any errors now

DUPLICATE TARGET DATABASE FOR STANDBY FROM ACTIVE DATABASE DORECOVER;