Changing Logfiles Permission of WebLogic and Node Manager Logfiles to 644

In some cases you will need to align the Logfile permissions of the Oracle WebLogic Server (12.2.1.1 and 12.2.1.2) and Node Manager generated Logfiles to 644 (-rw-r--r--), so that for example Monitoring Tools like Patrol can access and monitor the WebLogic Server Logfiles with another OS user as the Oracle Software Installation user.

Just take a look on the Start Script startWebLogic.sh under your $DOMAIN_HOME/bin and the startNodeManager.sh under $ORACLE_HOME/wlserver/server/bin. Within these 2 Start Scripts you will find each a line defining the umask with 027.

# Snippet from $ORACLE_HOME/wlserver/server/bin/startNodeManager.sh

. . .
# Set user-defined variables.
unset JAVA_VM MEM_ARGS

umask 027


mypwd="$(pwd)"
. . .

# Replace the line "umask 027" with "umask 022"

. . .
# Set user-defined variables.
unset JAVA_VM MEM_ARGS

umask 022


mypwd="$(pwd)"
. . .

# Snippet from $DOMAIN_HOME/bin/startWebLogic.sh

. . .
umask 027


mypwd="$(pwd)"
. . .

# Replace the line "umask 027" with "umask 022"

. . .
umask 022


mypwd="$(pwd)"
. . .

When you startup now your Node Manager and your WebLogic Server Domain, your Logfiles will still have the permissions "-rw-r-----" :-(

That's a known bug, for Oracle WebLogic Server 12.2.1.1.0 and 12.2.1.2.0 just apply the Patch 24794915.

After you applied the patch, you will get the required permissions with "-rw-r--r--".
Under Oracle WebLogic Server 12.2.1.3.0 the bug is already fixed and you don't need to apply any patch for the umask problem.