Provided by: lttng-tools_2.10.6-1_amd64
lttng-destroy - Destroy an LTTng tracing session
lttng [GENERAL OPTIONS] destroy [--no-wait] [--all | SESSION]
The lttng destroy command destroys one or more tracing sessions. If no options are specified, the current tracing session is destroyed (see lttng-create(1) for more information about the current tracing session). If SESSION is specified, the existing tracing session named SESSION is destroyed. lttng list outputs all the existing tracing sessions (see lttng-list(1)). If the --all option is used, all the tracing sessions, as listed in the output of lttng list, are destroyed. Destroying a tracing session stops any tracing running within the latter. By default, the implicit lttng-stop(1) command invoked by the lttng destroy command ensures that the tracing session’s trace data is valid before returning. With the --no-wait option, the lttng-stop(1) command finishes immediately, hence a local trace might not be valid when the command is done. In this case, there is no way to know when the trace becomes valid. Destroying a tracing session does not destroy the recorded trace data, if any; it frees resources acquired by the session daemon and tracer side, making sure to flush all trace data.
General options are described in lttng(1). -a, --all Destroy all tracing sessions. -n, --no-wait Do not ensure that the chosen tracing session’s trace data is valid before returning to the prompt. Program information -h, --help Show command help. This option, like lttng-help(1), attempts to launch /usr/bin/man to view the command’s man page. The path to the man pager can be overridden by the LTTNG_MAN_BIN_PATH environment variable. --list-options List available command options.
LTTNG_ABORT_ON_ERROR Set to 1 to abort the process after the first error is encountered. LTTNG_HOME Overrides the $HOME environment variable. Useful when the user running the commands has a non-writable home directory. LTTNG_MAN_BIN_PATH Absolute path to the man pager to use for viewing help information about LTTng commands (using lttng-help(1) or lttng COMMAND --help). LTTNG_SESSION_CONFIG_XSD_PATH Path in which the session.xsd session configuration XML schema may be found. LTTNG_SESSIOND_PATH Full session daemon binary path. The --sessiond-path option has precedence over this environment variable. Note that the lttng-create(1) command can spawn an LTTng session daemon automatically if none is running. See lttng-sessiond(8) for the environment variables influencing the execution of the session daemon.
$LTTNG_HOME/.lttngrc User LTTng runtime configuration. This is where the per-user current tracing session is stored between executions of lttng(1). The current tracing session can be set with lttng-set-session(1). See lttng- create(1) for more information about tracing sessions. $LTTNG_HOME/lttng-traces Default output directory of LTTng traces. This can be overridden with the --output option of the lttng-create(1) command. $LTTNG_HOME/.lttng User LTTng runtime and configuration directory. $LTTNG_HOME/.lttng/sessions Default location of saved user tracing sessions (see lttng-save(1) and lttng-load(1)). /usr/local/etc/lttng/sessions System-wide location of saved tracing sessions (see lttng-save(1) and lttng-load(1)). Note $LTTNG_HOME defaults to $HOME when not explicitly set.
0 Success 1 Command error 2 Undefined command 3 Fatal error 4 Command warning (something went wrong during the command)
If you encounter any issue or usability problem, please report it on the LTTng bug tracker <https://bugs.lttng.org/projects/lttng-tools>.
· LTTng project website <http://lttng.org> · LTTng documentation <http://lttng.org/docs> · Git repositories <http://git.lttng.org> · GitHub organization <http://github.com/lttng> · Continuous integration <http://ci.lttng.org/> · Mailing list <http://lists.lttng.org> for support and development: lttng- email@example.com · IRC channel <irc://irc.oftc.net/lttng>: #lttng on irc.oftc.net
This program is part of the LTTng-tools project. LTTng-tools is distributed under the GNU General Public License version 2 <http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html>. See the LICENSE <https://github.com/lttng/lttng-tools/blob/master/LICENSE> file for details.
Special thanks to Michel Dagenais and the DORSAL laboratory <http://www.dorsal.polymtl.ca/> at École Polytechnique de Montréal for the LTTng journey. Also thanks to the Ericsson teams working on tracing which helped us greatly with detailed bug reports and unusual test cases.
LTTng-tools was originally written by Mathieu Desnoyers, Julien Desfossez, and David Goulet. More people have since contributed to it. LTTng-tools is currently maintained by Jérémie Galarneau <mailto:firstname.lastname@example.org>.
lttng-create(1), lttng-set-session(1), lttng(1)