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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT VARIABLES | FILES | EXIT STATUS | BUGS | RESOURCES | COPYRIGHTS | THANKS | AUTHORS | SEE ALSO | COLOPHON |
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LTTNG-DISABLE-EVEN(1) LTTng Manual LTTNG-DISABLE-EVEN(1)
lttng-disable-event - Disable LTTng event rules
lttng [GENERAL OPTIONS] disable-event
(--kernel [--probe | --function | --syscall] |
--userspace | --jul | --log4j | --python)
[--session=SESSION] [--channel=CHANNEL]
(--all-events | EVENT[,EVENT]...)
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).
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.
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-dev@lists.lttng.org
· 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:jeremie.galarneau@efficios.com>.
lttng-enable-event(1), lttng(1)
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 2018-02-02. (At that time,
the date of the most recent commit that was found in the repository
was 2018-02-01.) 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 2.11.0-pre 02/02/2018 LTTNG-DISABLE-EVEN(1)
Pages that refer to this page: lttng(1), lttng-enable-event(1)
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