lttng-metadata(1)

1LTTNG-METADATA(1)                LTTng Manual                LTTNG-METADATA(1)
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NAME

6       lttng-metadata - Manage an LTTng tracing session's metadata generation
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SYNOPSIS

9       lttng [GENERAL OPTIONS] metadata regenerate [--session=SESSION]
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DESCRIPTION

12           Warning
13           This command is deprecated; it has been replaced by lttng
14           regenerate metadata (see lttng-regenerate(1)).
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OPTIONS

17       General options are described in lttng(1).
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19       -s SESSION, --session=SESSION
20           Manage the metadata generation of the tracing session named SESSION
21           instead of the current tracing session.
22
23   Program information
24       -h, --help
25           Show command help.
26
27           This option, like lttng-help(1), attempts to launch /usr/bin/man to
28           view the command’s man page. The path to the man pager can be
29           overridden by the LTTNG_MAN_BIN_PATH environment variable.
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31       --list-options
32           List available command options.
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LIMITATIONS

35       The lttng metadata regenerate command can only be used on kernel and
36       user space tracing sessions (using per-user buffering), in non-live
37       mode.
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39       See lttng-enable-channel(1) for more information about buffering
40       schemes and lttng-create(1) for more information about the different
41       tracing session modes.
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ENVIRONMENT VARIABLES

44       LTTNG_ABORT_ON_ERROR
45           Set to 1 to abort the process after the first error is encountered.
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47       LTTNG_HOME
48           Overrides the $HOME environment variable. Useful when the user
49           running the commands has a non-writable home directory.
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51       LTTNG_MAN_BIN_PATH
52           Absolute path to the man pager to use for viewing help information
53           about LTTng commands (using lttng-help(1) or lttng COMMAND --help).
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55       LTTNG_SESSION_CONFIG_XSD_PATH
56           Path in which the session.xsd session configuration XML schema may
57           be found.
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59       LTTNG_SESSIOND_PATH
60           Full session daemon binary path.
61
62           The --sessiond-path option has precedence over this environment
63           variable.
64
65       Note that the lttng-create(1) command can spawn an LTTng session daemon
66       automatically if none is running. See lttng-sessiond(8) for the
67       environment variables influencing the execution of the session daemon.
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FILES

70       $LTTNG_HOME/.lttngrc
71           User LTTng runtime configuration.
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73           This is where the per-user current tracing session is stored
74           between executions of lttng(1). The current tracing session can be
75           set with lttng-set-session(1). See lttng-create(1) for more
76           information about tracing sessions.
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78       $LTTNG_HOME/lttng-traces
79           Default output directory of LTTng traces. This can be overridden
80           with the --output option of the lttng-create(1) command.
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82       $LTTNG_HOME/.lttng
83           User LTTng runtime and configuration directory.
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85       $LTTNG_HOME/.lttng/sessions
86           Default location of saved user tracing sessions (see lttng-save(1)
87           and lttng-load(1)).
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89       /usr/local/etc/lttng/sessions
90           System-wide location of saved tracing sessions (see lttng-save(1)
91           and lttng-load(1)).
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93           Note
94           $LTTNG_HOME defaults to $HOME when not explicitly set.
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EXIT STATUS

97       0
98           Success
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100       1
101           Command error
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103       2
104           Undefined command
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106       3
107           Fatal error
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109       4
110           Command warning (something went wrong during the command)
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BUGS

113       If you encounter any issue or usability problem, please report it on
114       the LTTng bug tracker <https://bugs.lttng.org/projects/lttng-tools>.
115

RESOURCES

117       •   LTTng project website <https://lttng.org>
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119       •   LTTng documentation <https://lttng.org/docs>
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121       •   Git repositories <http://git.lttng.org>
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123       •   GitHub organization <http://github.com/lttng>
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125       •   Continuous integration <http://ci.lttng.org/>
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127       •   Mailing list <http://lists.lttng.org> for support and development:
128           lttng-dev@lists.lttng.org
129
130       •   IRC channel <irc://irc.oftc.net/lttng>: #lttng on irc.oftc.net
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COPYRIGHTS

133       This program is part of the LTTng-tools project.
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135       LTTng-tools is distributed under the GNU General Public License version
136       2 <http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html>. See the
137       LICENSE <https://github.com/lttng/lttng-tools/blob/master/LICENSE> file
138       for details.
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THANKS

141       Special thanks to Michel Dagenais and the DORSAL laboratory
142       <http://www.dorsal.polymtl.ca/> at École Polytechnique de Montréal for
143       the LTTng journey.
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145       Also thanks to the Ericsson teams working on tracing which helped us
146       greatly with detailed bug reports and unusual test cases.
147