lttng-metadata(1) ================= NAME ---- lttng-metadata - Manage an LTTng tracing session's metadata generation SYNOPSIS -------- [verse] *lttng* ['linkgenoptions:(GENERAL OPTIONS)'] *metadata regenerate* [option:--session='SESSION'] DESCRIPTION ----------- The `lttng metadata` command manages a tracing session's metadata generation options. As of this version, only the `regenerate` command's action is available. Regenerating a tracing session's metadata can be used to resample the offset between the system's monotonic clock and the wall-clock time. This command is meant to be used to resample the wall-clock time following a major link:https://en.wikipedia.org/wiki/Network_Time_Protocol[NTP] correction. As such, a system booting with an incorrect wall time can be traced before its wall time is NTP-corrected. Regenerating the tracing session's metadata ensures that trace viewers can accurately determine the events time relative to Unix Epoch. include::common-cmd-options-head.txt[] option:-s, option:--session='SESSION':: Manage the metadata generation of the tracing session named 'SESSION' instead of the current tracing session. include::common-cmd-help-options.txt[] LIMITATIONS ----------- The `lttng metadata regenerate` command can only be used on kernel and user space tracing sessions (using per-user buffering), in non-live mode. See man:lttng-enable-channel(1) for more information about buffering schemes and man:lttng-create(1) for more information about the different tracing session modes. include::common-cmd-footer.txt[] SEE ALSO -------- man:lttng(1)