Standby Database Creation Issue

Raghav_DBA

I created standby database on same server on which primary exists. I am getting TNS issue for Standby TNS due to that FAL failed to request gap sequence.

In Primary log file

Fatal NI connect error 12520, connecting to:

 (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=catovmcl01-ld8z0-scan.prodexacssubnet.catoprvcn.oraclevcn.com)(PORT=1528))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=PFLEXRPT.prodexacssubnet.catoprvcn.oraclevcn.com)(CID=(PROGRAM=oracle)(HOST=catovmcl01-ld8z01)(USER=oracle))))

Primary TNS

PFLEXCDB_PRI=

  (DESCRIPTION=

   (ADDRESS=

    (PROTOCOL= TCP)

    (HOST= Scan_NAME)

    (PORT= 1528))

   (CONNECT_DATA=

    (SERVER= DEDICATED)

    (SERVICE_NAME= PFLEXCDB_PRI.prodexacssubnet.catoprvcn.oraclevcn.com)))

In Standby Log file

PR00 (PID:188039): FAL: Failed to request gap sequence

PR00 (PID:188039): GAP - thread 1 sequence 24-24

PR00 (PID:188039): DBID 2573059216 branch 1106383893

PR00 (PID:188039): FAL: All defined FAL servers have been attempted

Standby TNS

PFLEXRPT=

  (DESCRIPTION=

   (ADDRESS=

    (PROTOCOL= TCP)

    (HOST= Scan_NAME)

    (PORT= 1528))

   (CONNECT_DATA=

    (SERVER= DEDICATED)

    (SERVICE_NAME= PFLEXRPT.prodexacssubnet.catoprvcn.oraclevcn.com)))

on Primary 

log_archive_dest_3          string   LOCATION=+RECOC1 VALID_FOR=(AL

                         L_LOGFILES,ALL_ROLES) DB_UNIQU

                         E_NAME=PFLEXCDB_PRI

log_archive_dest_4          string   SERVICE=PFLEXRPT LGWR ASYNC VA

                         LID_FOR=(ONLINE_LOGFILES,PRIMA

                         RY_ROLE) DB_UNIQUE_NAME=PFLEXR

                         PT

On Standby

log_archive_dest_3          string   LOCATION=+RECOC1 VALID_FOR=(AL

                         L_LOGFILES,ALL_ROLES) DB_UNIQU

                         E_NAME=PFLEXRPT

log_archive_dest_4          string   SERVICE=PFLEXCDB_PRI LGWR ASYN

                         C VALID_FOR=(ONLINE_LOGFILES,P

                         RIMARY_ROLE) DB_UNIQUE_NAME=PF

                         LEXCDB_PRI

LOG_ARCHIVE_DEST_4

ORA-12520: TNS:listener could not find available handler for

requested type of server

This error I am getting in primary database for log_archive_dest_4

DB Name = PFLEXCDB

Primary Unique Name= PFLEXCDB_PRI

Standby Unique Name = PFLEXRPT