Roy Golan has posted comments on this change.

Change subject: core: Push ioTune QoS info when hotplugging disk
......................................................................


Patch Set 3:

(4 comments)

http://gerrit.ovirt.org/#/c/33907/3/backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/vdsbroker/HotPlugDiskVDSCommand.java
File 
backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/vdsbroker/HotPlugDiskVDSCommand.java:

Line 69:             drive.put(VdsProperties.PropagateErrors, 
disk.getPropagateErrors().toString().toLowerCase());
Line 70: 
Line 71:             // maps to avoid fetching qos object for same disk profile 
id
Line 72:             Map<Guid, Guid> diskProfileStorageQosMap = new HashMap<>();
Line 73:             Map<Guid, Map<String, Long>> storageQosIoTuneMap = new 
HashMap<>();
> What difference will that make? The bytecode will end up the same and it wi
I'm not talking about any optimisation here. just plain code readability

the 2 declared vars have no use except from passing them
so its way shorter to just hand them inline.

no mean to pre-optimize nothing.
Line 74:             Map<String, Long> ioTune =
Line 75:                     VmInfoBuilder.buildIoTune(diskImage, 
diskProfileStorageQosMap, storageQosIoTuneMap);
Line 76:             if (ioTune != null) {
Line 77:                 if (vmDevice.getSpecParams() == null) {


Line 72:             Map<Guid, Guid> diskProfileStorageQosMap = new HashMap<>();
Line 73:             Map<Guid, Map<String, Long>> storageQosIoTuneMap = new 
HashMap<>();
Line 74:             Map<String, Long> ioTune =
Line 75:                     VmInfoBuilder.buildIoTune(diskImage, 
diskProfileStorageQosMap, storageQosIoTuneMap);
Line 76:             if (ioTune != null) {
> Guys are you aware of the fact that specParams are not ioTune specific? I c
I didn't mean specparams but rather the static buildioTune
method on the info builder.

like numa has a NumaFactorySetting and a relevant test
class, this should have one as well
Line 77:                 if (vmDevice.getSpecParams() == null) {
Line 78:                     vmDevice.setSpecParams(new HashMap<String, 
Object>());
Line 79:                 }
Line 80:                 vmDevice.getSpecParams().put(VdsProperties.Iotune, 
ioTune);


http://gerrit.ovirt.org/#/c/33907/3/backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/vdsbroker/VmInfoBuilder.java
File 
backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/vdsbroker/VmInfoBuilder.java:

Line 361: 
Line 362:         ArchStrategyFactory.getStrategy(vm.getClusterArch()).run(new 
CreateAdditionalControllers(devices));
Line 363:     }
Line 364: 
Line 365:     static Map<String, Long> buildIoTune(DiskImage diskImage,
> No modifier has a special meaning. Package private and not accessible from 
don't think that was the meaning and anyhow I'm against that method here. this 
should be in a IoTuneSettingFactory or something similar
Line 366:             Map<Guid, Guid> diskProfileStorageQosMap,
Line 367:             Map<Guid, Map<String, Long>> storageQosIoTuneMap) {
Line 368:         Guid diskProfileId = diskImage.getDiskProfileId();
Line 369:         if (diskProfileId == null) {


Line 387:         }
Line 388:         return null;
Line 389:     }
Line 390: 
Line 391:     static private Map<String, Long> buildIoTuneMap(StorageQos 
storageQos) {
> That is exactly what I see in the patch.. or do you mean to use private sta
yes private then static.
its a matter of code format rules. is that surprising? :)
Line 392:         // build map
Line 393:         Map<String, Long> ioTuneMap = new HashMap<>();
Line 394:         if (storageQos.getMaxThroughput() != null) {
Line 395:             // Convert MiB/s to B/s vdsm is expecting


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Gerrit-MessageType: comment
Gerrit-Change-Id: Ic4bb85cd307089088be77cff28adbc783ebcaedd
Gerrit-PatchSet: 3
Gerrit-Project: ovirt-engine
Gerrit-Branch: master
Gerrit-Owner: Martin Sivák <[email protected]>
Gerrit-Reviewer: Gilad Chaplik <[email protected]>
Gerrit-Reviewer: Liron Aravot <[email protected]>
Gerrit-Reviewer: Martin Sivák <[email protected]>
Gerrit-Reviewer: Roy Golan <[email protected]>
Gerrit-Reviewer: Tomer Saban <[email protected]>
Gerrit-Reviewer: [email protected]
Gerrit-Reviewer: oVirt Jenkins CI Server
Gerrit-HasComments: Yes
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