ORA-12157: TNS:internal network communication error
Applies to:
Oracle Server - Enterprise Edition - Version: 9.2.0.1 to 11.1.0.99This problem can occur on any platform.
Although this problem was first identified on x86 and x86_64 Linux, it is a generic potential issue when the TMPDIR variable is incorrectly set.
Symptoms
Immediately following my 10.2.0.1 install onto RHEL 4 u3 x86_64 (“default-RPMs”), when the
DBCA starts to create the initial DB, the following error pops up:
ORA-12157: TNS:internal network communication error
Changes
First attempted use of the DBCA tool, whether manually, or by "install-requested" automatic instance creation.Cause
You have the environment variable TMPDIR set to a directory that does not exist.
Solution
Ensure that the TEMP and TMPDIR environment variables are set to a valid file system with atleast 400 MB of writable free space.
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