This is probably because gridengine-common.postinst does chown 644 ${TMPFILE} instead of chmod 644 ${TMPFILE}
so other tools can't read /etc/default/gridengine
This is probably because gridengine- common. postinst does
chown 644 ${TMPFILE}
instead of
chmod 644 ${TMPFILE}
so other tools can't read /etc/default/ gridengine