отключить правила событий LTTng (Disable LTTng event rules)
Имя (Name)
lttng-disable-event - Disable LTTng event rules
Синопсис (Synopsis)
lttng [GENERAL OPTIONS] disable-event
(--kernel [--probe | --function | --syscall] |
--userspace | --jul | --log4j | --python)
[--session=SESSION] [--channel=CHANNEL]
(--all-events | EVENT[,EVENT]...)
Описание (Description)
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).
Параметры (Options)
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.
Переменные окружения (Environment variables)
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.
Файлы (Files)
$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.
Статус выхода (Exit)
0
Success
1
Command error
2
Undefined command
3
Fatal error
4
Command warning (something went wrong during the command)
Ошибки (баги) (Bugs)
If you encounter any issue or usability problem, please report it
on the LTTng bug tracker <https://bugs.lttng.org/projects/lttng-
tools>.
Ресурсы (Resources)
• LTTng project website <https://lttng.org>
• LTTng documentation <https://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
