8 lttng-destroy - Destroy LTTng recording sessions
14 *lttng* ['linkgenoptions:(GENERAL OPTIONS)'] *destroy* [option:--no-wait] [option:--all | option:--glob 'SESSION' | 'SESSION']
19 The `lttng destroy` command destroys:
21 With the 'SESSION' argument::
22 The recording session named 'SESSION'.
24 With the option:--all option::
25 *All* the recording sessions of the connected session daemon for
26 your Unix user, or for all users if your Unix user is `root`, as
27 listed in the output of `lttng list` (see man:lttng-list(1)).
29 See the ``Session daemon connection'' section of man:lttng(1) to learn
30 how a user application connects to a session daemon.
33 The current recording session (see man:lttng-concepts(7) to learn
34 more about the current recording session).
36 In that case, the current recording session becomes nonexistent.
38 See man:lttng-concepts(7) to learn more about recording sessions.
40 ``Destroying'' a recording session means freeing the resources which the
41 LTTng daemons and tracers acquired for it, also making sure to flush all
42 the recorded trace data to either the local file system or the connected
43 LTTng relay daemon (see man:lttng-relayd(8)), depending on the recording
46 The `destroy` command stops any recording activity within the selected
47 recording session(s). By default, the command runs an implicit
48 man:lttng-stop(1) command to ensure that the trace data of the recording
49 session(s) is valid before it exits. Make the command exit immediately
50 with the option:--no-wait option. In this case, however, the traces(s)
51 might not be valid when the command exits, and there's no way to know
52 when it/they become valid.
54 If, for a recording session{nbsp}__RS__ to destroy with the `destroy`
55 command, the following statements are true:
57 * You don't specify the option:--no-wait option.
59 * LTTng archived the current trace chunk (see man:lttng-concepts(7))
60 of{nbsp}__RS__ at least once during its lifetime.
62 Then all the subdirectories of the output directory of{nbsp}__RS__
63 (local or remote) are considered trace chunk archives once the `destroy`
64 command exits. In other words, it's safe to read them, modify them, move
67 See the ``<<examples,EXAMPLES>>'' section below for usage examples.
70 include::common-lttng-cmd-options-head.txt[]
73 option:-a, option:--all::
74 Destroy all the recording sessions of your Unix user, or of all
75 users if your Unix user is `root`, as listed in the output of
76 man:lttng-list(1), instead of the current recording session or the
77 recording session named 'SESSION'.
79 option:-g, option:--glob::
80 Interpret SESSION as a globbing pattern.
82 option:-n, option:--no-wait::
83 Do :not: ensure that the trace data of the recording session(s) to
84 destroy is valid before exiting.
87 include::common-lttng-cmd-help-options.txt[]
90 include::common-lttng-cmd-after-options.txt[]
96 .Destroy the current recording session.
104 .Destroy the current recording session without waiting for completion.
106 See the option:--no-wait option.
110 $ lttng destroy --no-wait
114 .Destroy a specific recording session.
118 $ lttng destroy my-session
122 .Destroy all recording sessions.
124 See the option:--all option.
128 $ lttng destroy --all
132 .Destroy all recording sessions with the suffix foo.
134 See the option:--glob option.
138 $ lttng destroy --global '*foo'
143 include::common-footer.txt[]
151 man:lttng-concepts(7)