Technical Documentation

traceoptions (Resource Cleanup)


traceoptions {file filename files number match regex size size (world-readable | no-world-readable);flag flag;level level;no-remote-trace;}

Hierarchy Level

[edit system processes resource-cleanup]

Release Information

Statement introduced in JUNOS Release 9.3.


Enable debugging tracing for resource cleanup process.


file filename

Name of the file to receive the output of the tracing operation. Enclose the name within quotation marks. To include the filestatement, you must specify a filename.

files number

(Optional) Maximum number of trace files. When a trace file named trace-file reaches its maximum size, it is renamed trace-file.0, then trace-file.1, and so on, until the maximum number of trace files is reached. Then the oldest trace file is overwritten.

If you specify a maximum number of files, you also must specify a maximum file size with the size option.

flag flag

Specify which tracing operation to perform. To specify more than one tracing operation, include multiple flag statements. You can include the following flags:

  • all—Enable all trace options flags.
  • events—Trace process state change and cleanup events.
  • gencfg——Trace GENCFG blobs recorded for cleanup.
  • module—Trace module code.
  • sysvsem—Trace SYSV semaphores recorded for cleanup.
  • sysvshm—Trace SYSV shared memory segments recorded for cleanup.
  • tracking—Trace tracking code.
  • ui—Trace user interface operations.
level level

Specify the level of debugging output:

  • all—Match all levels.
  • error—Match error conditions.
  • info—Match informational messages.
  • notice—Match conditions that warrant special handling (but are not errors).
  • verbose—Match verbose messages.
  • warning—Match warning messages.
match regex

(Optional) Refine the output to include lines that contain the regular expression.


Disable remote tracing.

size size

(Optional) Maximum size of each trace file, in kilobytes (KB), megabytes (MB), or gigabytes (GB). If you specify a maximum file size, you also must specify a maximum number of trace files with the files number option.

Syntax: xk to specify KB, xm to specify MB, or xg to specify GB
Range: 10 KB through 1 GB
Default: 128 KB
world-readable | no-world-readable

(Optional). Grant all users permission to read log files, or restrict the permission only to the root user and users who have the JUNOS maintenance permission.

Usage Guidelines

See Tracing System Resource Cleanup Operations for JUNOS SDK Applications.

Required Privilege Level

trace—To view this statement in the configuration.

trace-control—To add this statement to the configuration.

Published: 2010-05-09