projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 44f5039e PP |
1 | lttng-load(1) |
| 2 | ============= | |
| 3 | ||
| 4 | ||
| 5 | NAME | |
| 6 | ---- | |
| 7 | lttng-load - Load LTTng tracing session configurations | |
| 8 | ||
| 9 | ||
| 10 | SYNOPSIS | |
| 11 | -------- | |
| 12 | [verse] | |
| 13 | *lttng* ['GENERAL OPTIONS'] *load* [option:--force] [option:--input-path='PATH'] ['SESSION'] | |
| 14 | ||
| 15 | ||
| 16 | DESCRIPTION | |
| 17 | ----------- | |
| 18 | The `lttng load` command loads the configurations of one or more | |
| 19 | tracing sessions from files. | |
| 20 | ||
| 21 | The `lttng load` command is used in conjunction with the | |
| 22 | linklttng:lttng-save(1) command to save and restore the complete | |
| 23 | configurations of tracing sessions. This includes the enabled channels | |
| 24 | and event rules, the context added to channels, the tracing activity, | |
| 25 | and more. | |
| 26 | ||
| 27 | Once one or more tracing session configurations are loaded, they appear | |
| 28 | exactly as they were saved from the user's point of view. | |
| 29 | ||
| 30 | The default input path is `$LTTNG_HOME/.lttng/sessions` | |
| 31 | (`$LTTNG_HOME` defaults to `$HOME`). The input path can be | |
| 32 | overridden with the option:--input-path option. | |
| 33 | ||
| 34 | If the input path is a directory, then if 'SESSION' is specified, the | |
| 35 | tracing session configuration named 'SESSION' is searched in all the | |
| 36 | files of this directory and loaded if found. If 'SESSION' is not | |
| 37 | specified, the option:--all option is implicit: all the tracing session | |
| 38 | configurations found in all the files in this directory are loaded. | |
| 39 | ||
| 40 | If the input path is a file, then if 'SESSION' is specified, the tracing | |
| 41 | session configuration named 'SESSION' is searched in this file and | |
| 42 | loaded if found. If 'SESSION' is not specified, the option:--all option | |
| 43 | is implicit: all the tracing session configurations found in this file | |
| 44 | are loaded. | |
| 45 | ||
| 46 | By default, existing tracing sessions are not overwritten when loading; | |
| 47 | the command fails. The option:--force option can be used to allow this. | |
| 48 | ||
| 49 | ||
| 50 | include::common-cmd-options-head.txt[] | |
| 51 | ||
| 52 | ||
| 53 | option:-a, option:--all:: | |
| 54 | Load all tracing session configurations (default). | |
| 55 | ||
| 56 | option:-f, option:--force:: | |
| 57 | Overwrite existing tracing sessions when loading. | |
| 58 | ||
| 59 | option:-i, option:--input-path='PATH':: | |
| 60 | Set input path to 'PATH', either a directory or a file, in which | |
| 61 | tracing session configurations are searched for. | |
| 62 | ||
| 63 | ||
| 64 | include::common-cmd-help-options.txt[] | |
| 65 | ||
| 66 | ||
| 67 | include::common-cmd-footer.txt[] | |
| 68 | ||
| 69 | ||
| 70 | SEE ALSO | |
| 71 | -------- | |
| 72 | linklttng:lttng-save(1), | |
| 73 | linklttng:lttng(1) |