X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;ds=sidebyside;f=doc%2Fman%2Flttng-clear.1.txt;h=3d125a672a2b683fd77e43c827c5c41c1714088e;hb=e971184584781f70bbbfc52bbede8b9abf0436e5;hp=f60a55b96d3896655a96e96405d9b46cd62e5b7a;hpb=af1c4164dd7bad940a84c29c2b429d76e3fc0e33;p=lttng-tools.git diff --git a/doc/man/lttng-clear.1.txt b/doc/man/lttng-clear.1.txt index f60a55b96..3d125a672 100644 --- a/doc/man/lttng-clear.1.txt +++ b/doc/man/lttng-clear.1.txt @@ -1,10 +1,10 @@ lttng-clear(1) ============== -:revdate: 3 May 2021 +:revdate: 14 June 2021 NAME ---- -lttng-clear - Clear an LTTng tracing session +lttng-clear - Clear an LTTng recording session SYNOPSIS @@ -15,62 +15,98 @@ SYNOPSIS DESCRIPTION ----------- -The `lttng clear` command clears one or more tracing sessions, that is, -it deletes the contents of their tracing buffers and of all their local -and streamed trace data. +The `lttng clear` command clears one or more recording sessions, that +is, it deletes the contents of their recording buffers and of all their +local and streamed trace data. -See man:lttng-concepts(7) to learn more about tracing sessions. +See man:lttng-concepts(7) to learn more about recording sessions. The `clear` command clears: Without any option:: - The current tracing session. + The current recording session. + -See man:lttng-concepts(7) to learn more about the current tracing +See man:lttng-concepts(7) to learn more about the current recording session. With the 'SESSION' argument:: - The tracing session named 'SESSION'. + The recording session named 'SESSION'. With the option:--all option:: - *All* the tracing sessions of the connected session daemon for your - Unix user, or for all users if your Unix user is `root`, as listed - in the output of `lttng list` (see man:lttng-list(1)). + *All* the recording sessions of the connected session daemon for + your Unix user, or for all users if your Unix user is `root`, as + listed in the output of `lttng list` (see man:lttng-list(1)). + See the ``Session daemon connection'' section of man:lttng(1) to learn how a user application connects to a session daemon. -If a tracing session is configured in snapshot mode (see the +If a recording session is configured in snapshot mode (see the nloption:--snapshot option of the man:lttng-create(1) command), the -`clear` command only clears the tracing buffers. +`clear` command only clears the recording buffers. -For a given tracing session, if at least one rotation occurred (see -man:lttng-concepts(7)), the `clear` command only clears its tracing +For a given recording session, if at least one rotation occurred (see +man:lttng-concepts(7)), the `clear` command only clears its recording buffers and its current trace chunk, :not: its archived trace chunks. NOTE: The nloption:--disallow-clear option and the `LTTNG_RELAYD_DISALLOW_CLEAR` environment variable of man:lttng-relayd(8) can disable remote clearing operations. If LTTng -sends tracing data over the network for the selected tracing session(s) -to an LTTng relay daemon configured as such, the `clear` command fails. +sends recording data over the network for the selected recording +session(s) to an LTTng relay daemon configured as such, the `clear` +command fails. +See the ``<>'' section below for usage examples. -include::common-cmd-options-head.txt[] + +include::common-lttng-cmd-options-head.txt[] Recording target ~~~~~~~~~~~~~~~~ option:-a, option:--all:: - Clear all the tracing sessions of your Unix user, or of all users if + Clear all the recording sessions of your Unix user, or of all users if your Unix user is `root`, as listed in the output of - man:lttng-list(1), instead of the current tracing session or the - tracing session named 'SESSION'. + man:lttng-list(1), instead of the current recording session or the + recording session named 'SESSION'. + + +include::common-lttng-cmd-help-options.txt[] + +include::common-lttng-cmd-after-options.txt[] -include::common-cmd-help-options.txt[] + +[[examples]] +EXAMPLES +-------- +.Clear the current recording session. +==== +[role="term"] +---- +$ lttng clear +---- +==== + +.Clear a specific recording session. +==== +[role="term"] +---- +$ lttng clear my-session +---- +==== + +.Clear all recording sessions. +==== +See the option:--all option. + +[role="term"] +---- +$ lttng clear --all +---- +==== -include::common-cmd-footer.txt[] +include::common-footer.txt[] SEE ALSO