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1 | lttng-disable-event(1) |
2 | ====================== | |
188419c4 | 3 | :revdate: 3 May 2021 |
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4 | |
5 | ||
6 | NAME | |
7 | ---- | |
484b2a0c | 8 | lttng-disable-event - Disable LTTng recording event rules |
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9 | |
10 | ||
11 | SYNOPSIS | |
12 | -------- | |
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13 | Disable one or more recording event rules matching Linux kernel |
14 | events: | |
15 | ||
16 | [verse] | |
17 | *lttng* ['linkgenoptions:(GENERAL OPTIONS)'] *disable-event* option:--kernel | |
18 | [option:--tracepoint | option:--syscall | option:--probe | option:--function] | |
19 | (option:--all-events | 'NAME'[,'NAME']...) | |
20 | [option:--session='SESSION'] [option:--channel='CHANNEL'] | |
21 | ||
22 | Disable one or more recording event rules matching user space | |
23 | tracepoint or Java/Python logging events: | |
24 | ||
290294e8 | 25 | [verse] |
ce19b9ed | 26 | *lttng* ['linkgenoptions:(GENERAL OPTIONS)'] *disable-event* |
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27 | (option:--userspace | option:--jul | option:--log4j | option:--python) [option:--tracepoint] |
28 | (option:--all-events | 'NAME'[,'NAME']...) | |
290294e8 | 29 | [option:--session='SESSION'] [option:--channel='CHANNEL'] |
484b2a0c | 30 | |
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31 | |
32 | DESCRIPTION | |
33 | ----------- | |
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34 | The `lttng disable-event` command disables one or more enabled recording |
35 | event rules previously created with the man:lttng-enable-event(1) | |
188419c4 PP |
36 | command which belong to: |
37 | ||
38 | With the option:--session='SESSION' option:: | |
39 | The tracing session named 'SESSION'. | |
40 | ||
41 | Without the option:--session option:: | |
42 | The current tracing session (see man:lttng-concepts(7) to learn more | |
43 | about the current tracing session). | |
44 | ||
45 | With the option:--channel='CHANNEL' option:: | |
46 | The channel named 'CHANNEL'. | |
47 | ||
48 | Without the option:--channel option:: | |
49 | The channel named `channel0`. | |
50 | ||
51 | See man:lttng-concepts(7) to learn more about recording event rules. | |
290294e8 | 52 | |
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53 | As of LTTng{nbsp}{lttng_version}, the `disable-event` command can only |
54 | find recording event rules to disable by their instrumentation point | |
55 | type and event name conditions. Therefore, you cannot disable recording | |
56 | event rules having a specific instrumentation point log level condition, | |
57 | for example. | |
290294e8 | 58 | |
188419c4 | 59 | List the recording event rules of a given tracing session |
484b2a0c | 60 | and/or channel with the man:lttng-list(1) command. |
290294e8 | 61 | |
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62 | Without the option:--all-events option, the `disable-event` command |
63 | disables one recording event rule per 'NAME' argument. 'NAME' is the | |
64 | exact event name condition pattern of the recording event rule to | |
65 | disable, as listed in the output of `lttng list` (see | |
66 | man:lttng-list(1)). | |
290294e8 | 67 | |
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68 | You may disable an enabled recording event rule regardless of the |
69 | activity (started or stopped) of its tracing session (see | |
70 | man:lttng-start(1) and man:lttng-stop(1)). | |
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71 | |
72 | ||
73 | include::common-cmd-options-head.txt[] | |
74 | ||
75 | ||
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76 | Tracing domain |
77 | ~~~~~~~~~~~~~~ | |
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78 | One of: |
79 | ||
80 | option:-j, option:--jul:: | |
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81 | Disable recording event rules in the `java.util.logging` (JUL) |
82 | domain. | |
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83 | |
84 | option:-k, option:--kernel:: | |
484b2a0c | 85 | Disable recording event rules in the Linux kernel domain. |
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86 | |
87 | option:-l, option:--log4j:: | |
484b2a0c | 88 | Disable recording event rules in the Apache log4j domain. |
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89 | |
90 | option:-p, option:--python:: | |
484b2a0c | 91 | Disable recording event rules in the Python domain. |
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92 | |
93 | option:-u, option:--userspace:: | |
484b2a0c | 94 | Disable recording event rules in the user space tracing domain. |
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95 | |
96 | ||
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97 | Recording target |
98 | ~~~~~~~~~~~~~~~~ | |
59b19c3c | 99 | option:-c 'CHANNEL', option:--channel='CHANNEL':: |
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100 | Disable recording event rules attached to the channel named |
101 | 'CHANNEL' instead of `channel0`. | |
290294e8 | 102 | |
59b19c3c | 103 | option:-s 'SESSION', option:--session='SESSION':: |
484b2a0c | 104 | Disable recording event rules in the tracing session named 'SESSION' |
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105 | instead of the current tracing session. |
106 | ||
107 | ||
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108 | Instrumentation point type condition |
109 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
110 | At most one of: | |
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111 | |
112 | option:--function:: | |
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113 | Only disable recording event rules which match Linux kretprobe |
114 | events. | |
115 | + | |
116 | Only available with the option:--kernel option. | |
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117 | |
118 | option:--probe:: | |
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119 | Only disable recording event rules which match Linux kprobe events. |
120 | + | |
121 | Only available with the option:--kernel option. | |
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122 | |
123 | option:--syscall:: | |
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124 | Only disable recording event rules which match Linux system call |
125 | events. | |
126 | + | |
127 | Only available with the option:--kernel option. | |
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128 | |
129 | option:--tracepoint:: | |
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130 | Only disable recording event rules which match: |
131 | + | |
132 | -- | |
133 | With the option:--kernel or option:--userspace option::: | |
134 | LTTng tracepoint events. | |
135 | With the option:--jul, option:--log4j, or option:--python option::: | |
136 | Logging events. | |
137 | -- | |
138 | + | |
139 | As of LTTng{nbsp}{lttng_version}, this is the default instrumentation | |
140 | point type condition option, but this may change in the future. | |
141 | ||
142 | ||
143 | Event name condition | |
144 | ~~~~~~~~~~~~~~~~~~~~ | |
290294e8 | 145 | option:-a, option:--all-events:: |
484b2a0c | 146 | Disable recording event rules regardless of their event name |
188419c4 | 147 | condition. |
484b2a0c | 148 | |
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149 | |
150 | include::common-cmd-help-options.txt[] | |
151 | ||
152 | ||
153 | include::common-cmd-footer.txt[] | |
154 | ||
155 | ||
156 | SEE ALSO | |
157 | -------- | |
484b2a0c | 158 | man:lttng(1), |
7c1a4458 | 159 | man:lttng-enable-event(1), |
21b35b3a PP |
160 | man:lttng-list(1), |
161 | man:lttng-concepts(7) |