In certain scenarios, the /var/log partition on the Junos Space server can reach 100% utilization, causing the GUI to become inaccessible. This article provides the steps to identify the cause and apply a workaround.

When attempting to access the Junos Space GUI, the following error appears:

Service Unavailable:

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Step 1: Log in to the Junos Space VIP CLI

Access the CLI using SSH.

Step 2: Check disk utilization

Run the following commands to verify which partition has reached 100%:

[root@space-005056a9eca5 log]# df -kh 
Filesystem                    Size  Used Avail Use% Mounted on

/dev/sda1                     477M   44M  405M  10% /boot

/dev/mapper/jmpvgnocf-lvvar   262G   41G  208G  17% /var

/dev/mapper/jmpvgnocf-lvlog    48G   46G     0 100% /var/log

/dev/mapper/jmpvgnocf-lvtmp    72G  438M   68G   1% /tmp

Step 3: Identify large log files

Navigate to the log directory and list the files consuming the most space:

[root@space-005056a9eca5 log]# cd /var/log

[root@space-005056a9eca5 log]# find /var/log/ -xdev -type f -printf '%s %p\n'| sort -nr | head -50

15519858889 /var/log/SystemStatusLog

7897601850 /var/log/nma.log

7374729509 /var/log/secure

4023007962 /var/log/messages

4021721289 /var/log/daemon.log

3145080832 /var/log/httpd/access_log

Step 4: Truncate the large file

In this example, SystemStatusLog is consuming the most space.

[root@space-005056a9eca5 log]# > SystemStatusLog

This truncates the file and instantly frees space.

Step 5: Verify disk space again

Confirm that the /var/log partition now has available space:

[root@space-005056a9eca5 log]# df -kh  

Step 6: Check and restart impacted services

If any services appear dead or not running, restart them:

# service jboss status
#service jboss-dc  status
# service httpd status
# service slipstream status

Note : If issue persist, please contact JUNIPER JTAC Support for assistance.