On 08/06/2015 03:10 AM, Daleep Bais wrote:
Hi,
Whenever I restart or check the logs for OSD, MON, I get below warning
message..
I am running a test cluster of 09 OSD's and 03 MON nodes.
[ceph-node1][WARNIN] libust[3549/3549]: Warning: HOME environment
variable not set. Disabling LTTng-UST per-user tracing. (in
setup_local_apps() at lttng-ust-comm.c:375)
In short: this is harmless, you can ignore it.
liblttng-ust tries to listen for control commands from lttng-sessiond
in a few places by default, including under $HOME. It does this via a
shared mmaped file. If you were interested in tracing as a non-root
user, you could set LTTNG_HOME to a place that was usable, like /var/lib
/ceph/. Since ceph daemons run as root today, this is irrelevant, and
you can still use lttng as root just fine. Unfortunately there's no
simple to silence liblttng-ust about this.
Josh
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