Monday, August 29, 2016

F5 LTM & APM - Running qkview from CLI




Running qkview from the command line

Impact of procedure: The qkview utility runs a large number of commands when collecting information. This behavior may cause an additional performance burden on systems that are already under heavy load.
  1. Log in to the command line.
  2. Run qkview by typing the following command:
qkview
The output file name displays when the command has completed.
  1. Collect the output file from the /var/tmp/ directory, by copying the file to an external host using a utility such as ftp or scp.
Note: You may also run qkview by using the tmsh run /util qkview command.
Using qkview command line options
Impact of procedure: Performing the following procedure should not have a negative impact on your system.
  1. To view the list of qkview command line options, type the following command:
    qkview -h

    For example, to reduce the performance burden of qkview, you can run qkview at the lowest possible priority by typing the following command:
    nice -n 19 qkview

    Note: For heavily loaded systems, qkview may take a long time to finish running when using nice -n 19.
  2. To run the qkview command and specify the file size allowed, use the qkview -s option.For example, to specify no file size limit, type the following command:

    qkview -s0

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