Description of problem:
Every 10 seconds salt-minion logs in the Monitor logs.

Warning: HOME environment variable not set. Disabling LTTng-UST per-user tracing. (in setup_local_apps() at lttng-ust-comm.c:305)

This floods the log files for the customer. Upstream tracker: http://tracker.ceph.com/issues/13470 is open for this similar noise issue.
But salt-minion was not logging in that tracker it was log-rotate and it was once a day when log rotate was run.

Customer set HOME variable in ceph_common.sh and the messages continued to log.

Every once in awhile I do see salt-minion process using libttng and then it is gone:

salt-mini 58036          root  mem       REG                8,3     40552  101469588 /usr/lib64/liblttng-ust-tracepoint.so.0.0.0
salt-mini 58036          root  mem       REG                8,3    316472  101469590 /usr/lib64/liblttng-ust.so.0.0.0
salt-mini 58036          root  mem       REG               0,17      4096      28718 /dev/shm/lttng-ust-wait-5
salt-mini 58036 58047    root  mem       REG                8,3     40552  101469588 /usr/lib64/liblttng-ust-tracepoint.so.0.0.0


Version-Release number of selected component (if applicable):

Red Hat Ceph Storage 1.3.2
Salt 2014.1.5-3

How reproducible:
I cannot reproduce on my environment.

Expected results:

Customer would like these messages to not spam the monitor logs and setting environment variable is not affecting them from logging.