Re: ORA-12547: TNS:lost contact

Posted by ErmanArslansOracleBlog on Aug 17, 2017; 7:33am
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/ORA-12547-TNS-lost-contact-tp3202p3228.html

This is a clone right?

Please take "all the actions" documented in that document.. A db tier oracle home recloning is involved here as awell.

I mean;

1 - Delete target Oracle_Home directory (rm -rf)
2 - Unzip the source to the target Oracle_Home (step 2 of Note:1221705.1)
3 - Unset LD_LIBRARY_PATH and any other variables that point to a different $ORACLE_HOME
4 - Clone the home (step 3 of Note:1221705.1)
5 - Run the command (Against binaries in $ORACLE_HOME/bin )

% readelf -d $ORACLE_HOME/bin/oracle | grep -i rpath

to check that there are no more references to the source environment

Alternatively, check the timestamps of the files under $ORACLE_HOME/bin to make sure that all binaries have been successfully relinked

ldd command can also be used to check the binaries for library path used for compilation.
library should point to cloned  ORACLE_HOME/lib