Syslog message JTASK_TERMINATE_DISK_SPACE 

user@router> help syslog JTASK_TERMINATE_DISK_SPACE 

Name:     JTASK_TERMINATE_DISK_SPACE

Message:    disk full, terminating <executable-name>[<pid>] version <version> built by <builder> on <date>.BACKTRACE: <message>

Help:     process could not write to disk because disk is full

Description:  The routing process has terminated due to no disk space available.

Type:     Error: An error occurred

Severity:   error

Facility:   LOG_DAEMON

Cause:     disk-full

Action:    Examine disk storage, especially/ args tmp and/ args var/tmp, for old or obsolete files such as old core files or old log files that can be safely removed.

RPD core dump can happen however no core file will be written

The log message due to lack of space.

Please monitor the disk storage by issuing the command

show system storage

and monitor the Available storage of /dev/gpt/junos