| | 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* ['linkgenoptions:(GENERAL OPTIONS)'] *load* [option:--force] [option:--input-path='PATH'] |
| | 14 | [option:--override-url='URL'] ['SESSION'] |
| | 15 | |
| | 16 | |
| | 17 | DESCRIPTION |
| | 18 | ----------- |
| | 19 | The `lttng load` command loads the configurations of one or more |
| | 20 | tracing sessions from files. |
| | 21 | |
| | 22 | The `lttng load` command is used in conjunction with the |
| | 23 | man:lttng-save(1) command to save and restore the complete |
| | 24 | configurations of tracing sessions. This includes the enabled channels |
| | 25 | and event rules, the context added to channels, the tracing activity, |
| | 26 | and more. |
| | 27 | |
| | 28 | Once one or more tracing session configurations are loaded, they appear |
| | 29 | exactly as they were saved from the user's point of view. |
| | 30 | |
| | 31 | The following directories are searched, non-recursively, in this order |
| | 32 | for configuration files: |
| | 33 | |
| | 34 | . `$LTTNG_HOME/.lttng/sessions` (`$LTTNG_HOME` defaults to `$HOME`) |
| | 35 | . +{system_sessions_dir}+ |
| | 36 | |
| | 37 | The input path can be overridden with the option:--input-path option. |
| | 38 | When this option is specified, the default directories are :not: |
| | 39 | searched for configuration files. When it's not specified, _both_ |
| | 40 | default directories are searched for configuration files. |
| | 41 | |
| | 42 | If the input path is a *directory*, then: |
| | 43 | |
| | 44 | * If 'SESSION' is specified, the tracing session configuration named |
| | 45 | 'SESSION' is searched for in all the files of this directory and |
| | 46 | loaded if found. |
| | 47 | * If 'SESSION' is not specified, the option:--all option is implicit: |
| | 48 | all the tracing session configurations found in all the files in this |
| | 49 | directory are loaded. |
| | 50 | |
| | 51 | If the input path is a *file*, then: |
| | 52 | |
| | 53 | * If 'SESSION' is specified, the tracing session configuration named |
| | 54 | 'SESSION' is searched for in this file and loaded if found. |
| | 55 | * If 'SESSION' is not specified, the option:--all option is implicit: |
| | 56 | all the tracing session configurations found in this file are loaded. |
| | 57 | |
| | 58 | Aspects of the loaded configurations can be overridden at load time. |
| | 59 | |
| | 60 | option:--override-url:: |
| | 61 | Provides the equivalent of the option:--set-url option |
| | 62 | of the (1)lttng-create command. The validity of the url override is |
| | 63 | dependant on the type of session(s) to be loaded. Refer to (1)lttng-create for |
| | 64 | the accepted URL format. |
| | 65 | |
| | 66 | By default, existing tracing sessions are not overwritten when loading: |
| | 67 | the command fails. The option:--force option can be used to allow this. |
| | 68 | |
| | 69 | |
| | 70 | include::common-cmd-options-head.txt[] |
| | 71 | |
| | 72 | |
| | 73 | option:-a, option:--all:: |
| | 74 | Load all tracing session configurations (default). |
| | 75 | |
| | 76 | option:-f, option:--force:: |
| | 77 | Overwrite existing tracing sessions when loading. |
| | 78 | |
| | 79 | option:-i, option:--input-path='PATH':: |
| | 80 | Load tracing session configurations from 'PATH', either a directory |
| | 81 | or a file, instead of loading them from the default search |
| | 82 | directories. |
| | 83 | |
| | 84 | option:-U, option:--override-url='URL':: |
| | 85 | Load tracing session configurations and apply an url override |
| | 86 | while loading. Applies to all sessions loaded. |
| | 87 | |
| | 88 | include::common-cmd-help-options.txt[] |
| | 89 | |
| | 90 | |
| | 91 | include::common-cmd-footer.txt[] |
| | 92 | |
| | 93 | |
| | 94 | SEE ALSO |
| | 95 | -------- |
| | 96 | man:lttng-save(1), |
| | 97 | man:lttng(1) |
projects / lttng-tools.git / blame_incremental