Hi, Looking at the code, the disk statistics are only updated when the VM is running. It looks like a bug. Could you open a Bugzilla ticket, so we can properly fix it?
https://bugzilla.redhat.com/enter_bug.cgi?product=ovirt-engine Set the component to: Backend.Core And oVirt Team to: Virt Regards, Andrej On Mon, 30 Jul 2018 at 20:01, Hari Prasanth Loganathan < [email protected]> wrote: > Thanks Greg, please let me know this. > > > On Mon, 30 Jul 2018 at 11:29 PM, Greg Sheremeta <[email protected]> > wrote: > >> Sorry for the delay. adding some others that may know. >> >> On Sun, Jul 29, 2018 at 11:02 PM Hari Prasanth Loganathan < >> [email protected]> wrote: >> >>> Hi Guys, >>> >>> Any update on this, please? >>> >>> Thanks, >>> Hari >>> >>> On Fri, Jul 27, 2018 at 5:52 AM, Greg Sheremeta <[email protected]> >>> wrote: >>> >>>> + @Tomas Jelinek <[email protected]> do you know this one? >>>> >>>> On Wed, Jul 18, 2018 at 1:57 AM Hari Prasanth Loganathan < >>>> [email protected]> wrote: >>>> >>>>> Hi Karli, >>>>> >>>>> Sorry for the confusion, Initially I thought it is an issue from our >>>>> side so posted like 'ignore it', >>>>> But this issue is from oVirt. So could you please help me. >>>>> >>>>> *Steps to reproduce :* >>>>> 1) Attach the disk to any VM >>>>> 2) Perform some read and write operation in the VM which will increase >>>>> the disk level - 'Read data rate / Write data rate / >>>>> disk.read.latency / disk.write.latency' >>>>> 3) Now when I bring down the VM, all the disk statistics should come >>>>> down to be zero *But it is still retaining with last known value when >>>>> the VM was in UP state.* >>>>> >>>>> >>>>> *Expected : All values should go to ZeroActual : All values retains >>>>> the last known values when the VM was in UP state. * >>>>> >>>>> Thanks, >>>>> Hari >>>>> >>>>> >>>>> On Wed, Jul 18, 2018 at 11:20 AM, Karli Sjöberg <[email protected]> >>>>> wrote: >>>>> >>>>>> >>>>>> >>>>>> On Jul 17, 2018 11:56, Hari Prasanth Loganathan < >>>>>> [email protected]> 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 < >>>>>> [email protected]> 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-2b3449f3dbda/statistics> >>>>>> >>>>>> 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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