Bug 1329278

Summary: Every 10 seconds salt-minion logs Warning: HOME environment variable not set. Disabling LTTng-UST per-user tracing. (in setup_local_apps() at lttng-ust-comm.c:305)
Product: Red Hat Ceph Storage Reporter: Mike Hackett <mhackett>
Component: CalamariAssignee: Christina Meno <gmeno>
Calamari sub component: Minions QA Contact: ceph-qe-bugs <ceph-qe-bugs>
Status: CLOSED INSUFFICIENT_DATA Docs Contact:
Severity: low    
Priority: low CC: ceph-eng-bugs, kdreyer, mhackett
Version: 1.3.2   
Target Milestone: rc   
Target Release: 1.3.4   
Hardware: Unspecified   
OS: All   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-04-24 17:48:30 UTC Type: Bug
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Mike Hackett 2016-04-21 13:53:28 UTC 
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.
Comment 3 Ken Dreyer (Red Hat) 2016-08-02 16:34:23 UTC 
This might be fixed since bz 1302139 was fixed. Are you still seeing this with the latest RHCS 1.3.z builds?
Comment 4 Mike Hackett 2016-08-26 16:12:02 UTC 
Ken, 

I will validate with customer this is not see in newer build of 1.3.2. (94.5-14 for example).

Thank you,