arthas/arthas-tutorials-en/command/options/options.md

Global options

Name	Default Value	Description
unsafe	false	whether to enhance to system-level class. Use it with caution since JVM may hang
dump	false	whether to dump enhanced class to the external files. If it's on, enhanced class will be dumped into /${application dir}/arthas-class-dump/{{}} , the specific output path will be output in the console
batch-re-transform	true	whether to re-transform matched classes in batch
json-format	false	whether to output in JSON format
disable-sub-class	false	whether to enable matching child classes. The default value is true{{}} . If exact match is desire, turn off this flag
support-default-method	true	whether to enable matching default method in interface. The default value is true{{}} . Refer to #1105
save-result	false	whether to save execution result. All execution results will be saved to ~/logs/arthas-cache/result.log{{}} when it's turned on
job-timeout	1d	default timeout for background jobs. Background job will be terminated once it's timed out (i.e. 1d, 2h, 3m, 25s)	print-parent-fields	true	This option enables print files in parent class, default value true.

options command Docs

View all options

options{{execute T2}}

Get special option value

options json-format{{execute T2}}

By default, json-format{{}} is false. When set json-format{{}} to true, commands like wathc{{}} /tt{{}} will print result with json{{}} format.

Set special option value

For example, to enable saving command execution result, first check the log, and you can see there's no result:

cat /root/logs/arthas-cache/result.log{{execute T2}}

To enable saving command execution result, input the command below:

options save-result true{{execute T2}}

Wait for a second, and you will see there exist some results:

cat /root/logs/arthas-cache/result.log{{execute T2}}