[ovirt-users] Re: Disk Statistics API in oVirt

On Jul 17, 2018 11:56, Hari Prasanth Loganathan <hariprasanth.l@ msystechnologies.com> wrote: It is an issue from our side. Please ignore my question. You've now made several posts about wanting help, but this completely contradicts it! I don't get it, do you have an issue you want help with, or should everyone just ignore you? /K But How frequently we will collect the disk statistics and update in PostgreSQL? Thanks, Hari On Tue, Jul 17, 2018 at 3:18 PM, Hari Prasanth Loganathan <hariprasanth.l@ msystechnologies.com> wrote: Hi Team, We are using the following API to collect the disk statistics, https://X.X.X.2/ovirt-engine/api/ *disks/2331bad7-71ec-4fad-95bb-2b3449f3dbda/statistics* <https://X.X.X.2/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb-2b3449f3db... I found one issue in the disk statistics. In case If the Virtual Machine has this disk (*2331bad7-71ec-4fad-95bb-2b3449f3dbda*) attached to it and I perform some read / write operation in the VM and it increases the corresponding disk level Read data rate / Write data rate / disk.read.latency / disk.write.latency. *Example*, I received the following values for this disk, But the problem is even when I bring down the VM still the last known value is received continuously. *Is it a known issue Or any workaround is available? * *Expected : All values should go to Zero* *Actual : All values retains the last known values when the VM was in UP state. * { "statistic": [ { "kind": "gauge", "type": "decimal", "unit": "bytes_per_second", "values": { "value": [ { "datum": 2184 } ] }, "disk": { "href": "/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb- 2b3449f3dbda", "id": "2331bad7-71ec-4fad-95bb-2b3449f3dbda" }, "name": "data.current.read", "description": "Read data rate", "href": "/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb- 2b3449f3dbda/statistics/33b9212b-f9cb-3fd0-b364-248fb61e1272", "id": "33b9212b-f9cb-3fd0-b364-248fb61e1272" }, { "kind": "gauge", "type": "decimal", "unit": "bytes_per_second", "values": { "value": [ { "datum": 41202005 } ] }, "disk": { "href": "/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb- 2b3449f3dbda", "id": "2331bad7-71ec-4fad-95bb-2b3449f3dbda" }, "name": "data.current.write", "description": "Write data rate", "href": "/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb- 2b3449f3dbda/statistics/2f23addd-4ebd-3d82-a449-c28778bc33eb", "id": "2f23addd-4ebd-3d82-a449-c28778bc33eb" }, { "kind": "gauge", "type": "decimal", "unit": "seconds", "values": { "value": [ { "datum": 0.12 } ] }, "disk": { "href": "/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb- 2b3449f3dbda", "id": "2331bad7-71ec-4fad-95bb-2b3449f3dbda" }, "name": "disk.read.latency", "description": "Read latency", "href": "/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb- 2b3449f3dbda/statistics/3a7b3f72-d035-3bb9-b196-e86a4eb34993", "id": "3a7b3f72-d035-3bb9-b196-e86a4eb34993" }, { "kind": "gauge", "type": "decimal", "unit": "seconds", "values": { "value": [ { "datum": 1.4 } ] }, "disk": { "href": "/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb- 2b3449f3dbda", "id": "2331bad7-71ec-4fad-95bb-2b3449f3dbda" }, "name": "disk.write.latency", "description": "Write latency", "href": "/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb- 2b3449f3dbda/statistics/b1e75c7b-cea4-37d2-8459-f7d68efc69a3", "id": "b1e75c7b-cea4-37d2-8459-f7d68efc69a3" }, { "kind": "gauge", "type": "decimal", "unit": "seconds", "values": { "value": [ { "datum": 0 } ] }, "disk": { "href": "/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb- 2b3449f3dbda", "id": "2331bad7-71ec-4fad-95bb-2b3449f3dbda" }, "name": "disk.flush.latency", "description": "Flush latency", "href": "/ovirt-engine/api/disks/2331bad7-71ec-4fad-95bb- 2b3449f3dbda/statistics/9c17ad7b-9ef1-3e8d-ad0a-ff8bee3925f0", "id": "9c17ad7b-9ef1-3e8d-ad0a-ff8bee3925f0" } ] } Thanks, Hari DISCLAIMER - *MSysTechnologies LLC* This email message, contents and its attachments may contain confidential, proprietary or legally privileged information and is intended solely for the use of the individual or entity to whom it is actually intended. 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