Bug 1275730

Summary:	snmpd repeatedly logs errors for "Cannot statfs net:[###...#]"
Product:	Red Hat OpenStack	Reporter:	Peter Portante <pportant>
Component:	openstack-tripleo-heat-templates	Assignee:	Vinay Kapalavai <vkapalav>
Status:	CLOSED ERRATA	QA Contact:	Nataf Sharabi <nsharabi>
Severity:	medium	Docs Contact:
Priority:	low
Version:	7.0 (Kilo)	CC:	bnemec, ebarrera, hbrock, jason.dobies, jdanjou, jeffrey.r.morgan.jr, jslagle, kholden, lnatapov, mburns, mrunge, pkilambi, rhel-osp-director-maint, rhos-maint, rmeggins, srevivo, tkatarki, tvignaud, vkapalav
Target Milestone:	---	Keywords:	TestOnly, Triaged, ZStream
Target Release:	14.0 (Rocky)
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	openstack-tripleo-heat-templates-9.0.0-0.20180804083746.el7ost	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-03-18 13:03:09 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Peter Portante 2015-10-27 15:10:23 UTC

Looks snmpd periodically logs errors of the form:

  Cannot statfs net:[4026532907]#012: No such file or directory

This seems to be caused by these two mount entries:

  proc on /run/netns/qdhcp-f90899a0-dc73-45c6-9889-80473cf67336 type proc (rw,nosuid,nodev,noexec,relatime)
  proc on /run/netns/qdhcp-f90899a0-dc73-45c6-9889-80473cf67336 type proc (rw,nosuid,nodev,noexec,relatime)

If one runs "snmpd -D -Lo -f > /tmp/snmpd.debug.log 2>&1", killing it after about 10 seconds (be patient, it does not take ctrl-c right away), you find in the log entries like:

  trace: _fsys_type(): hardware/fsys/fsys_mntent.c, 73:
  fsys:type: Classifying proc
  Cannot statfs net:[4026532907]
  : No such file or directory
  trace: netsnmp_fsys_by_path(): hardware/fsys/hw_fsys.c, 154:
  fsys:path: Get filesystem entry (net:[4026532907])

These seem to match up with the two mount entries.

Comment 2 Peter Portante 2015-10-27 16:02:49 UTC

The reason this is filed against the OSP director is that my RHEL 7.1 host was installed a running with SNMPD prior to the openstack install.

After running, "openstack undercloud install", SNMPD was started and the error messages begin.

Comment 9 Hugh Brock 2016-03-21 11:33:47 UTC

This has missed 8.0 -- I'm moving it to 9.0 and assigning it to the default owner (Angus)

Comment 12 Ben Nemec 2017-03-09 23:30:02 UTC

This seems like a fairly cosmetic issue.  Is it causing any functional issues?

Comment 13 Peter Portante 2017-03-10 03:49:34 UTC

It does not appear to be a functional issue.  But neither is it cosmetic, since depending on the configuration, you can see lots of these logs logged by snmpd at an error level.

This affects common logging efforts, as the more noise our products emit, the harder it is to wade through that noise to find real errors.

Adding Tushar to comment.

Comment 25 Lon Hohberger 2019-01-15 19:35:15 UTC

According to our records, this should be resolved by openstack-tripleo-heat-templates-9.0.1-0.20181013060908.el7ost.  This build is available now.

Comment 28 Nataf Sharabi 2019-02-19 11:24:14 UTC

Couldn't reproduce the original bug.


Not via manual run (snmpd -D -Lo TCP:1161 > /tmp/snmpd.debug.log1 2>&1)

Or via systemctl start snmpd

Comment 30 errata-xmlrpc 2019-03-18 13:03:09 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2019:0446