[YUNIKORN-2517] [Yunikorn] Incorrect Placeholder Count for Duplicate Task Groups in Gang scheduling

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: core - scheduler
• Assignee: Manikandan R
• Reporter: Rajesh Kanhaiya Lal
• Created: 26/Mar/24 06:29
• Updated: 18/Oct/24 00:09

Description

Hi Team , I am getting incorrect placeholder count for the duplicate task groups in gang scheduling.

Example :

TaskGroups: []v1alpha1.TaskGroup{
				{Name: "groupdup", MinMember: int32(3), MinResource: map[string]resource.Quantity{
					"cpu":    resource.MustParse("10m"),
					"memory": resource.MustParse("10M"),
				}},
				{Name: "groupdup", MinMember: int32(5), MinResource: map[string]resource.Quantity{
					"cpu":    resource.MustParse("10m"),
					"memory": resource.MustParse("10M"),
				}},
				{Name: "groupa", MinMember: int32(7), MinResource: map[string]resource.Quantity{
					"cpu":    resource.MustParse("10m"),
					"memory": resource.MustParse("10M"),
				}},
			}, 

for the above config, we are getting a total of 17 pods ( 2 groups. + 15 Placeholders).

It's adding the duplicate group placeholder as well.

Could you please take a look?

gangjob-c805x-l4fx9                  1/1     Running   0          47s
gangjob-c805x-tc8tr                  1/1     Running   0          47s
tg-appid-oqina-groupa-1ap48pr4us     1/1     Running   0          45s
tg-appid-oqina-groupa-25t5jubyzl     1/1     Running   0          45s
tg-appid-oqina-groupa-6oxhqxnebc     1/1     Running   0          45s
tg-appid-oqina-groupa-bqj9nk3mdq     1/1     Running   0          45s
tg-appid-oqina-groupa-hugxbjb3xv     1/1     Running   0          45s
tg-appid-oqina-groupa-o46k68fhw1     1/1     Running   0          45s
tg-appid-oqina-groupa-vs5kxeop8z     1/1     Running   0          45s
tg-appid-oqina-groupdup-786dl3gch2   1/1     Running   0          45s
tg-appid-oqina-groupdup-877tnd4xdl   1/1     Running   0          45s
tg-appid-oqina-groupdup-b7yef7w47x   1/1     Running   0          45s
tg-appid-oqina-groupdup-cdqm1fcwbo   1/1     Running   0          45s
tg-appid-oqina-groupdup-hlxwv9to9z   1/1     Running   0          45s
tg-appid-oqina-groupdup-mvcd5pkijw   1/1     Running   0          45s
tg-appid-oqina-groupdup-o4d9s8d02p   1/1     Running   0          45s
tg-appid-oqina-groupdup-srrxrukstd   1/1     Running   0          45s 

 

 

Issue Links

• is caused by: YUNIKORN-1931 Improve placeholder name generation
• is related to: YUNIKORN-2933 Don't add duplicated taskGroup to app