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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) |