Shulou(Shulou.com)06/01 Report--

Oracle Study-- an error case of ORA-12537 (TNS:connection closed)

System environment:

Operating system: RedHat EL55

Cluster: Oracle 11gR2 GRID

Oracle: Oracle 11gR2

The following error occurred while building Oracle 11gR2 RAC:

1. When building the database

2. Listener log information

3. Client connection error message

Solution:

1. View the executable file # ls-l $ORACLE_HOME/bin/oracle-rwxr-x--x 1 oracle asmadmin 184286251 Aug 9 16:25 / home/oracle/app/oracle/product/11.2/db/bin/oracle-permission "- rwxr-x--x" in Oracle The permission for oracle to run the program should be 6751ORACLE_HOME/bin/oracle# ls 2. Solution: # chmod 6751 $ORACLE_HOME/bin/oracle# ls-l $ORACLE_HOME/bin/oracle-rwsr-s--x 1 oracle asmadmin 184286251 Aug 9 16:25 / home/oracle/app/oracle/product/11.2/db/bin/oracle

-at this point, the problem is solved!

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