NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT VARIABLES | FILES | EXIT STATUS | BUGS | RESOURCES | COPYRIGHTS | THANKS | AUTHORS | SEE ALSO | COLOPHON

LTTNG-DISABLE-EVEN(1)           LTTng Manual           LTTNG-DISABLE-EVEN(1)

NAME         top

       lttng-disable-event - Disable LTTng event rules

SYNOPSIS         top

       lttng [GENERAL OPTIONS] disable-event
             (--kernel [--probe | --function | --syscall] |
              --userspace | --jul | --log4j | --python)
             [--session=SESSION] [--channel=CHANNEL]
             (--all-events | EVENT[,EVENT]...)

DESCRIPTION         top

       The lttng disable-event command disables one or more event rules
       previously enabled by the lttng-enable-event(1) command.

       Event rules are always assigned to a channel when they are created.
       If the --channel option is omitted, the default channel named
       channel0 is used.

       If the --session option is omitted, the chosen channel is picked from
       the current tracing session.

       If the --all-events option is used, all the existing event rules of
       the chosen domain are disabled. Otherwise, at least one event rule to
       disable named EVENT must be specified.

       With the --kernel option, the event source type can be specified
       using one of the --tracepoint, --probe, --function, or --syscall
       options. See lttng-enable-event(1) for more details about event
       source types.

       Events can be disabled while tracing is active (use lttng-start(1) to
       make a tracing session active).

OPTIONS         top

       General options are described in lttng(1).

   Domain
       One of:

       -j, --jul
           Disable event rules in the java.util.logging (JUL) domain.

       -k, --kernel
           Disable event rules in the Linux kernel domain.

       -l, --log4j
           Disable event rules in the Apache log4j domain.

       -p, --python
           Disable event rules in the Python domain.

       -u, --userspace
           Disable event rules in the user space domain.

   Target
       -c CHANNEL, --channel=CHANNEL
           Disable event rules in the channel named CHANNEL instead of the
           default channel name channel0.

       -s SESSION, --session=SESSION
           Disable event rules in the tracing session named SESSION instead
           of the current tracing session.

   Event source type
       One of:

       --function
           Linux kernel kretprobe. Only available with the --kernel domain
           option.

       --probe
           Linux kernel kprobe. Only available with the --kernel domain
           option.

       --syscall
           Linux kernel system call. Only available with the --kernel domain
           option.

       --tracepoint
           Linux kernel or application tracepoint. Only available with the
           --kernel domain option (default Linux kernel domain event source
           type).

   Disabling
       -a, --all-events
           Disable all enabled event rules in the chosen tracing session,
           tracing domain, and channel.

   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.

ENVIRONMENT VARIABLES         top

       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.

FILES         top

       $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.

EXIT STATUS         top

       0
           Success

       1
           Command error

       2
           Undefined command

       3
           Fatal error

       4
           Command warning (something went wrong during the command)

BUGS         top

       If you encounter any issue or usability problem, please report it on
       the LTTng bug tracker <https://bugs.lttng.org/projects/lttng-tools>.

RESOURCES         top

       ·   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-dev@lists.lttng.org

       ·   IRC channel <irc://irc.oftc.net/lttng>: #lttng on irc.oftc.net

COPYRIGHTS         top

       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.

THANKS         top

       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.

AUTHORS         top

       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:jeremie.galarneau@efficios.com>.

SEE ALSO         top

       lttng-enable-event(1), lttng(1)

COLOPHON         top

       This page is part of the LTTng-Tools (    LTTng tools) project.
       Information about the project can be found at ⟨http://lttng.org/⟩.
       It is not known how to report bugs for this man page; if you know,
       please send a mail to man-pages@man7.org.  This page was obtained
       from the project's upstream Git repository 
       ⟨git://git.lttng.org/lttng-tools.git⟩ on 2017-05-03.  If you discover
       any rendering problems in this HTML version of the page, or you
       believe there is a better or more up-to-date source for the page, or
       you have corrections or improvements to the information in this
       COLOPHON (which is not part of the original manual page), send a mail
       to man-pages@man7.org

LTTng 2.10.0-pre                 05/03/2017            LTTNG-DISABLE-EVEN(1)

Pages that refer to this page: lttng(1)lttng-enable-event(1)