From: Daniel.Thibault@drdc-rddc.gc.ca (Thibault, Daniel)
Subject: [lttng-dev] What is the point of the lttng --group option?
Date: Fri, 31 May 2013 16:39:48 +0000 [thread overview]
Message-ID: <48CF5AC71E61DB46B70D0F388054EFFD12D224CE@VAL-E-02.valcartier.drdc-rddc.gc.ca> (raw)
In order for a user-level (non-sudoed) lttng command to be handled by the root lttng-sessiond daemon, the stars have to be properly aligned:
* The root daemon has to be running
* There must not be an lttng-sessiond daemon running for that user (other users' lttng-sessiond daemons are ignored)
* The user must belong to the root daemon's group name ('tracing' unless the lttng-sessiond --group option was used to set it to something else)
Otherwise the user-level lttng command is handled by the user's local lttng-sessiond daemon (which is spawned if not already running).
Specifying the lttng --group makes no difference. Whether you belong to it or not, the success of your non-sudoed root daemon command is decided by the three bullets listed above.
So what is this option supposed to be used for?
Daniel U. Thibault
Protection des syst?mes et contremesures (PSC) | Systems Protection & Countermeasures (SPC)
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reply other threads:[~2013-05-31 16:39 UTC|newest]
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