Ceilometer

Meter type of hardware bandwidth should be GAUGE

Bug #1326723 reported by Lawrance
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Ceilometer
Fix Released
Medium
Lawrance
Ceilometer 2014.2 "juno"

Bug Description

When i check the hardware network bandwidth metering code, the oid it walks is "1.3.6.1.2.1.2.2.1.5" i find it use TYPE_CUMULATIVE, code is below:

class BandwidthBytesPollster(_Base):

    @staticmethod
    def generate_one_sample(host, c_data):
        (nic, info) = c_data
        return util.make_sample_from_host(host,
                                          name='network.bandwidth.bytes',
                                          type=sample.TYPE_CUMULATIVE,
                                          unit='B',
                                          volume=info.bandwidth,
                                          res_metadata=nic,
                                          )

but when i review net-snmp.org,i find the link:
http://www.net-snmp.org/docs/mibs/interfaces.html

the oid "1.3.6.1.2.1.2.2.1.5" is representing ifSpeed and the type is GAUGE, should it use TYPE_GAUGE?

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix proposed to ceilometer (master)

Fix proposed to branch: master
Review: https://review.openstack.org/98075

Changed in ceilometer:
assignee: nobody → Lawrance (jing)
status: New → In Progress
Revision history for this message
Lawrance (jing) wrote :

maybe the CUMULATIVE TYPE is right!

Revision history for this message
gordon chung (chungg) wrote :

this source describes it as a gauge: http://www.alvestrand.no/objectid/1.3.6.1.2.1.2.2.1.5 and http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?local=en&translate=Translate&objectInput=1.3.6.1.2.1.2.2.1.5

Revision history for this message
Lawrance (jing) wrote :

as decribed in http://docs.openstack.org/developer/ceilometer/measurements.html

Cumulative Increasing over time (instance hours)

but the hardware.network.bandwidth.bytes is not Increasing over time
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:36:15 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:36:15 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 1250000.0 | B | 2014-06-04T12:36:15 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:36:15 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:36:15 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 536870911.0 | B | 2014-06-04T12:36:15 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 536870911.0 | B | 2014-06-04T12:36:15 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 1250000.0 | B | 2014-06-04T12:36:15 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 1250000.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 125000000.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 125000000.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 1250000.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 536870911.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 536870911.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 1250000.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 1250000.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 125000000.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 125000000.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:26:16 |
| localhost | hardware.network.bandwidth.bytes | cumulative | 0.0 | B | 2014-06-04T12:26:16 |

Revision history for this message
gordon chung (chungg) wrote :

hi Lawrance,

just to clarify. you think it should be gauge and not cumulative right?

Changed in ceilometer:
importance: Undecided → Medium
Lianhao Lu (lianhao-lu)
Changed in ceilometer:
milestone: none → juno-1
Eoghan Glynn (eglynn)
Changed in ceilometer:
milestone: juno-1 → juno-2
Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to ceilometer (master)

Reviewed: https://review.openstack.org/98075
Committed: https://git.openstack.org/cgit/openstack/ceilometer/commit/?id=d7c2144a9ab0b0bc5d35aa6a24f01b9fcfd90ece
Submitter: Jenkins
Branch: master

commit d7c2144a9ab0b0bc5d35aa6a24f01b9fcfd90ece
Author: liuqing <jing.liuqing@99cloud.net>
Date: Thu Jun 5 17:54:42 2014 +0800

    Use TYPE_GAUGE rather than TYPE_CUMULATIVE

    For hardware network bandwidth metering, it uses TYPE_CUMULATIVE, but
    the oid "1.3.6.1.2.1.2.2.1.5"(in file ceilometer/hardware/inspector/snmp.py)
    it walks in net-snmp.org is representing ifSpeed and the type is GAUGE.

    Cumulative definition: Increasing over time, but when i run
    `ceilometer sample-list --meter hardware.network.bandwidth.bytes`
    the output is not increasing over time.

    reference:
    http://docs.openstack.org/developer/ceilometer/measurements.html
    http://www.net-snmp.org/docs/mibs/interfaces.html

    Change-Id: Ic8a8280695c25db103fe4e4592fe00622728655d
    Closes-Bug: #1326723

Changed in ceilometer:
status: In Progress → Fix Committed
Russell Bryant (russellb)
Changed in ceilometer:
status: Fix Committed → Fix Released
Thierry Carrez (ttx)
Changed in ceilometer:
milestone: juno-2 → 2014.2
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