The latest known bugs and other issues are listed here, along with appropriate workarounds when they are available.
There are some known issues that affect scalability for large numbers of sessions (more than 80 simultaneous sessions per server) on Oracle Linux 6 and Oracle Solaris 11 systems. These limits are a result of default configurations and low file descriptor resource caps configured in the system DBus and gdm processes. The following workarounds can be applied to extend scalability.
Become superuser on the Sun Ray server.
Change the default DBus resource limits by creating a
/etc/dbus-1/system-local.conf
file with
the following lines:
<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-Bus Bus Configuration 1.0//EN" "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd"> <busconfig> <!-- default for this is 2048 --> <limit name="max_completed_connections">32768</limit> <!-- default for this is 256 --> <limit name="max_connections_per_user">4096</limit> </busconfig>
Change the system GDM daemons file descriptor resource cap
by adding a ulimit command to the
/etc/X11/prefdm
file.
After the line PATH=...
, add the
following line:
ulimit -n 16384
Reboot the system for the changes to take effect.
Become superuser on the Sun Ray server.
Change the default DBus resource limits by creating a
/etc/dbus-1/system-local.conf
file with
the following lines:
<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-Bus Bus Configuration 1.0//EN" "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd"> <busconfig> <!-- default for this is 2048 --> <limit name="max_completed_connections">32768</limit> <!-- default for this is 256 --> <limit name="max_connections_per_user">4096</limit> </busconfig>
Change the system DBus daemons file descriptor resource cap
by adding a plimit command to the
/etc/init.d/utsyscfg
file.
After the line start)
(line 320), add the
following lines:
if [ -x /bin/plimit ]; then DPID=$(pgrep -f "dbus-daemon --system") if [ -n "$DPID" ]; then plimit -n 16384 $DPID fi fi
Force the system gdm process to use the Solaris Extended
File Facility by replacing a line in the
/lib/svc/method/svc-gdm
file.
Replace the line /usr/sbin/gdm $arg &
with the following two lines:
ulimit -n 16384 LD_PRELOAD_32=/usr/lib/extendedFILE.so.1 /usr/sbin/gdm $arg &
Reboot the system for the changes to take effect.