akoskuczi-bw commented on issue #12229:
URL: https://github.com/apache/cloudstack/issues/12229#issuecomment-3663320462
Reproduced in a new cluster:
HA setup with 3 control plane nodes and 2 workers.
Scaled workers up to 3, then attempted to scale back down to 2.
The exception was raised during the scale-down operation.
{
"count": 1,
"kubernetescluster": [
{
"account": "admin",
"associatednetworkname": "VPC1-NET-K8S-1",
"autoscalingenabled": false,
"clustertype": "CloudManaged",
"controlnodes": 3,
"controlofferingid": "163b275b-9ff2-4dbd-b10c-c71403a15c52",
"controlofferingname": "k8s-small",
"cpunumber": "36",
"created": "2025-12-17T01:41:32+0000",
"csienabled": true,
"description": "k8s-1",
"domain": "ROOT",
"domainid": "e89c5713-d51f-11f0-b69a-525400aa0210",
"domainpath": "ROOT",
"endpoint": "https://192.168.205.19:6443/",
"etcdips": {},
"etcdnodes": 0,
"hasannotations": false,
"id": "60c485e3-4763-400e-9af1-40c8ded126d8",
"keypair": "Akoss-MacBook-Air",
"kubernetesversionid": "033cd216-a754-409b-b579-3aeafd841b25",
"kubernetesversionname": "v1.33.1-calico-x86_64",
"masternodes": 3,
"memory": "61440",
"name": "k8s-1",
"networkid": "3007e805-e186-487b-85f2-6af091a1352c",
"serviceofferingid": "163b275b-9ff2-4dbd-b10c-c71403a15c52",
"serviceofferingname": "k8s-small",
"size": 3,
"state": "Scaling",
"templateid": "e8b53ef3-d51f-11f0-b69a-525400aa0210",
"templatename": "SystemVM Template (KVM)",
"virtualmachines": [
{
"account": "admin",
"affinitygroup": [],
"arch": "x86_64",
"created": "2025-12-17T01:41:43+0000",
"deleteprotection": false,
"details": {
"SSH.KeyPairNames": "Akoss-MacBook-Air",
"SSH.PublicKey": "ssh-rsa
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"controlNodeLoginUser": "cloud",
"rootdisksize": "20"
},
"displayname": "k8s-1-control-19b29f86601",
"displayvm": true,
"domain": "ROOT",
"domainid": "e89c5713-d51f-11f0-b69a-525400aa0210",
"guestosid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"haenable": false,
"hostcontrolstate": "Enabled",
"hostid": "e1f21bff-9033-4823-aec2-329a14a06453",
"hostname": "acsh2.hu.nttlab.com",
"hypervisor": "KVM",
"id": "b7feed25-254a-49e2-905a-468691f5fa2a",
"instancename": "i-2-49-VM",
"isdynamicallyscalable": false,
"isetcdnode": false,
"isexternalnode": false,
"keypairs": "Akoss-MacBook-Air",
"kubernetesnodeversion": "1.33.1",
"lastupdated": "2025-12-17T01:42:02+0000",
"name": "k8s-1-control-19b29f86601",
"nic": [
{
"broadcasturi": "vxlan://37314",
"deviceid": "0",
"extradhcpoption": [],
"gateway": "10.0.2.1",
"id": "dd2e38fe-4ca6-4c60-bab9-5681579c3d05",
"ipaddress": "10.0.2.36",
"isdefault": true,
"isolationuri": "vxlan://37314",
"macaddress": "02:01:00:d3:00:16",
"netmask": "255.255.255.0",
"networkid": "3007e805-e186-487b-85f2-6af091a1352c",
"networkname": "VPC1-NET-K8S-1",
"secondaryip": [],
"traffictype": "Guest",
"type": "Isolated",
"vpcid": "ac204c2f-6a63-414e-82bb-2c45b87306cd",
"vpcname": "VPC1"
}
],
"osdisplayname": "Debian GNU/Linux 12 (64-bit)",
"ostypeid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"pooltype": "NetworkFilesystem",
"receivedbytes": 0,
"securitygroup": [],
"sentbytes": 0,
"state": "Running",
"tags": [],
"userid": "67ab52c3-d520-11f0-b69a-525400aa0210",
"username": "admin",
"vmtype": "cksnode",
"zoneid": "3e69da92-3496-4e85-a996-526087ba81ee",
"zonename": "Zone-A"
},
{
"account": "admin",
"affinitygroup": [],
"arch": "x86_64",
"created": "2025-12-17T01:42:02+0000",
"deleteprotection": false,
"details": {
"SSH.KeyPairNames": "Akoss-MacBook-Air",
"SSH.PublicKey": "ssh-rsa
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",
"controlNodeLoginUser": "cloud",
"rootdisksize": "20"
},
"displayname": "k8s-1-control-19b29f8af29",
"displayvm": true,
"domain": "ROOT",
"domainid": "e89c5713-d51f-11f0-b69a-525400aa0210",
"guestosid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"haenable": false,
"hostcontrolstate": "Enabled",
"hostid": "772f4811-59dd-4530-9fe5-fb6aa19d92e8",
"hostname": "acsh1.hu.nttlab.com",
"hypervisor": "KVM",
"id": "3f417ea5-f57c-4f9e-a1b1-7ac020d3bbc3",
"instancename": "i-2-50-VM",
"isdynamicallyscalable": false,
"isetcdnode": false,
"isexternalnode": false,
"keypairs": "Akoss-MacBook-Air",
"kubernetesnodeversion": "1.33.1",
"lastupdated": "2025-12-17T01:42:19+0000",
"name": "k8s-1-control-19b29f8af29",
"nic": [
{
"broadcasturi": "vxlan://37314",
"deviceid": "0",
"extradhcpoption": [],
"gateway": "10.0.2.1",
"id": "d210d83f-8c0b-46ff-8c2e-0ce3fc2a2b0f",
"ipaddress": "10.0.2.254",
"isdefault": true,
"isolationuri": "vxlan://37314",
"macaddress": "02:01:00:d3:00:17",
"netmask": "255.255.255.0",
"networkid": "3007e805-e186-487b-85f2-6af091a1352c",
"networkname": "VPC1-NET-K8S-1",
"secondaryip": [],
"traffictype": "Guest",
"type": "Isolated",
"vpcid": "ac204c2f-6a63-414e-82bb-2c45b87306cd",
"vpcname": "VPC1"
}
],
"osdisplayname": "Debian GNU/Linux 12 (64-bit)",
"ostypeid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"pooltype": "NetworkFilesystem",
"receivedbytes": 0,
"securitygroup": [],
"sentbytes": 0,
"state": "Running",
"tags": [],
"userid": "67ab52c3-d520-11f0-b69a-525400aa0210",
"username": "admin",
"vmtype": "cksnode",
"zoneid": "3e69da92-3496-4e85-a996-526087ba81ee",
"zonename": "Zone-A"
},
{
"account": "admin",
"affinitygroup": [],
"arch": "x86_64",
"created": "2025-12-17T01:42:19+0000",
"deleteprotection": false,
"details": {
"SSH.KeyPairNames": "Akoss-MacBook-Air",
"SSH.PublicKey": "ssh-rsa
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"controlNodeLoginUser": "cloud",
"rootdisksize": "20"
},
"displayname": "k8s-1-control-19b29f8f27a",
"displayvm": true,
"domain": "ROOT",
"domainid": "e89c5713-d51f-11f0-b69a-525400aa0210",
"guestosid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"haenable": false,
"hostcontrolstate": "Enabled",
"hostid": "e1f21bff-9033-4823-aec2-329a14a06453",
"hostname": "acsh2.hu.nttlab.com",
"hypervisor": "KVM",
"id": "683a6849-fe57-4299-8ec6-87ccc4f58a9c",
"instancename": "i-2-51-VM",
"isdynamicallyscalable": false,
"isetcdnode": false,
"isexternalnode": false,
"keypairs": "Akoss-MacBook-Air",
"kubernetesnodeversion": "1.33.1",
"lastupdated": "2025-12-17T01:42:38+0000",
"name": "k8s-1-control-19b29f8f27a",
"nic": [
{
"broadcasturi": "vxlan://37314",
"deviceid": "0",
"extradhcpoption": [],
"gateway": "10.0.2.1",
"id": "547e94b4-d7a4-45d6-8a00-37723f631d51",
"ipaddress": "10.0.2.108",
"isdefault": true,
"isolationuri": "vxlan://37314",
"macaddress": "02:01:00:d3:00:18",
"netmask": "255.255.255.0",
"networkid": "3007e805-e186-487b-85f2-6af091a1352c",
"networkname": "VPC1-NET-K8S-1",
"secondaryip": [],
"traffictype": "Guest",
"type": "Isolated",
"vpcid": "ac204c2f-6a63-414e-82bb-2c45b87306cd",
"vpcname": "VPC1"
}
],
"osdisplayname": "Debian GNU/Linux 12 (64-bit)",
"ostypeid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"pooltype": "NetworkFilesystem",
"receivedbytes": 0,
"securitygroup": [],
"sentbytes": 0,
"state": "Running",
"tags": [],
"userid": "67ab52c3-d520-11f0-b69a-525400aa0210",
"username": "admin",
"vmtype": "cksnode",
"zoneid": "3e69da92-3496-4e85-a996-526087ba81ee",
"zonename": "Zone-A"
},
{
"account": "admin",
"affinitygroup": [],
"arch": "x86_64",
"created": "2025-12-17T01:42:39+0000",
"deleteprotection": false,
"details": {
"SSH.KeyPairNames": "Akoss-MacBook-Air",
"SSH.PublicKey": "ssh-rsa
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"controlNodeLoginUser": "cloud",
"rootdisksize": "20"
},
"displayname": "k8s-1-node-19b29f93e7e",
"displayvm": true,
"domain": "ROOT",
"domainid": "e89c5713-d51f-11f0-b69a-525400aa0210",
"guestosid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"haenable": false,
"hostcontrolstate": "Enabled",
"hostid": "772f4811-59dd-4530-9fe5-fb6aa19d92e8",
"hostname": "acsh1.hu.nttlab.com",
"hypervisor": "KVM",
"id": "3cadc08b-3bc3-4626-b4de-e3b4fd327866",
"instancename": "i-2-52-VM",
"isdynamicallyscalable": false,
"isetcdnode": false,
"isexternalnode": false,
"keypairs": "Akoss-MacBook-Air",
"kubernetesnodeversion": "1.33.1",
"lastupdated": "2025-12-17T01:42:58+0000",
"name": "k8s-1-node-19b29f93e7e",
"nic": [
{
"broadcasturi": "vxlan://37314",
"deviceid": "0",
"extradhcpoption": [],
"gateway": "10.0.2.1",
"id": "b70be17e-7bbc-490d-a69c-07527eb798ff",
"ipaddress": "10.0.2.186",
"isdefault": true,
"isolationuri": "vxlan://37314",
"macaddress": "02:01:00:d3:00:19",
"netmask": "255.255.255.0",
"networkid": "3007e805-e186-487b-85f2-6af091a1352c",
"networkname": "VPC1-NET-K8S-1",
"secondaryip": [],
"traffictype": "Guest",
"type": "Isolated",
"vpcid": "ac204c2f-6a63-414e-82bb-2c45b87306cd",
"vpcname": "VPC1"
}
],
"osdisplayname": "Debian GNU/Linux 12 (64-bit)",
"ostypeid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"pooltype": "NetworkFilesystem",
"receivedbytes": 0,
"securitygroup": [],
"sentbytes": 0,
"state": "Running",
"tags": [],
"userid": "67ab52c3-d520-11f0-b69a-525400aa0210",
"username": "admin",
"vmtype": "cksnode",
"zoneid": "3e69da92-3496-4e85-a996-526087ba81ee",
"zonename": "Zone-A"
},
{
"account": "admin",
"affinitygroup": [],
"arch": "x86_64",
"created": "2025-12-17T01:42:58+0000",
"deleteprotection": false,
"details": {
"SSH.KeyPairNames": "Akoss-MacBook-Air",
"SSH.PublicKey": "ssh-rsa
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"controlNodeLoginUser": "cloud",
"rootdisksize": "20"
},
"displayname": "k8s-1-node-19b29f98aa5",
"displayvm": true,
"domain": "ROOT",
"domainid": "e89c5713-d51f-11f0-b69a-525400aa0210",
"guestosid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"haenable": false,
"hostcontrolstate": "Enabled",
"hostid": "909a292d-d1e0-4a0c-8d53-a0865ee8c6fa",
"hostname": "acsh4.hu.nttlab.com",
"hypervisor": "KVM",
"id": "c56312a3-c953-4198-ab08-8bae8df36248",
"instancename": "i-2-53-VM",
"isdynamicallyscalable": false,
"isetcdnode": false,
"isexternalnode": false,
"keypairs": "Akoss-MacBook-Air",
"kubernetesnodeversion": "1.33.1",
"lastupdated": "2025-12-17T01:43:15+0000",
"name": "k8s-1-node-19b29f98aa5",
"nic": [
{
"broadcasturi": "vxlan://37314",
"deviceid": "0",
"extradhcpoption": [],
"gateway": "10.0.2.1",
"id": "d23c35f8-aa37-4d9c-90dd-162dadf7b17d",
"ipaddress": "10.0.2.130",
"isdefault": true,
"isolationuri": "vxlan://37314",
"macaddress": "02:01:00:d3:00:1a",
"netmask": "255.255.255.0",
"networkid": "3007e805-e186-487b-85f2-6af091a1352c",
"networkname": "VPC1-NET-K8S-1",
"secondaryip": [],
"traffictype": "Guest",
"type": "Isolated",
"vpcid": "ac204c2f-6a63-414e-82bb-2c45b87306cd",
"vpcname": "VPC1"
}
],
"osdisplayname": "Debian GNU/Linux 12 (64-bit)",
"ostypeid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"pooltype": "NetworkFilesystem",
"receivedbytes": 0,
"securitygroup": [],
"sentbytes": 0,
"state": "Running",
"tags": [],
"userid": "67ab52c3-d520-11f0-b69a-525400aa0210",
"username": "admin",
"vmtype": "cksnode",
"zoneid": "3e69da92-3496-4e85-a996-526087ba81ee",
"zonename": "Zone-A"
},
{
"account": "admin",
"affinitygroup": [],
"arch": "x86_64",
"created": "2025-12-17T01:52:47+0000",
"deleteprotection": false,
"details": {
"SSH.KeyPairNames": "Akoss-MacBook-Air",
"SSH.PublicKey": "ssh-rsa
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"controlNodeLoginUser": "cloud",
"rootdisksize": "20"
},
"displayname": "k8s-1-node-19b2a0288a6",
"displayvm": true,
"domain": "ROOT",
"domainid": "e89c5713-d51f-11f0-b69a-525400aa0210",
"guestosid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"haenable": false,
"hostcontrolstate": "Enabled",
"hostid": "909a292d-d1e0-4a0c-8d53-a0865ee8c6fa",
"hostname": "acsh4.hu.nttlab.com",
"hypervisor": "KVM",
"id": "7ea2afff-300f-47b2-a077-490c38d86bfa",
"instancename": "i-2-54-VM",
"isdynamicallyscalable": false,
"isetcdnode": false,
"isexternalnode": false,
"keypairs": "Akoss-MacBook-Air",
"kubernetesnodeversion": "1.33.1",
"lastupdated": "2025-12-17T01:53:08+0000",
"name": "k8s-1-node-19b2a0288a6",
"nic": [
{
"broadcasturi": "vxlan://37314",
"deviceid": "0",
"extradhcpoption": [],
"gateway": "10.0.2.1",
"id": "a5e6071c-3286-410c-b466-0e24da6e9d68",
"ipaddress": "10.0.2.110",
"isdefault": true,
"isolationuri": "vxlan://37314",
"macaddress": "02:01:00:d3:00:1b",
"netmask": "255.255.255.0",
"networkid": "3007e805-e186-487b-85f2-6af091a1352c",
"networkname": "VPC1-NET-K8S-1",
"secondaryip": [],
"traffictype": "Guest",
"type": "Isolated",
"vpcid": "ac204c2f-6a63-414e-82bb-2c45b87306cd",
"vpcname": "VPC1"
}
],
"osdisplayname": "Debian GNU/Linux 12 (64-bit)",
"ostypeid": "94fd284d-27fc-4a50-990f-d2a10cc162ab",
"pooltype": "NetworkFilesystem",
"receivedbytes": 0,
"securitygroup": [],
"sentbytes": 0,
"state": "Running",
"tags": [],
"userid": "67ab52c3-d520-11f0-b69a-525400aa0210",
"username": "admin",
"vmtype": "cksnode",
"zoneid": "3e69da92-3496-4e85-a996-526087ba81ee",
"zonename": "Zone-A"
}
],
"workerofferingid": "8ae8a869-13cb-4af1-afc7-03124dc573aa",
"workerofferingname": "k8s-large",
"zoneid": "3e69da92-3496-4e85-a996-526087ba81ee",
"zonename": "Zone-A"
}
]
}
select * from kubernetes_cluster_vm_map;
+----+------------+-------+--------------+-----------+---------------+----------------+-------------------------+
| id | cluster_id | vm_id | control_node | etcd_node | external_node |
manual_upgrade | kubernetes_node_version |
+----+------------+-------+--------------+-----------+---------------+----------------+-------------------------+
| 19 | 4 | 49 | 1 | 0 | 0 |
0 | 1.33.1 |
| 20 | 4 | 50 | 1 | 0 | 0 |
0 | 1.33.1 |
| 21 | 4 | 51 | 1 | 0 | 0 |
0 | 1.33.1 |
| 22 | 4 | 52 | 0 | 0 | 0 |
0 | 1.33.1 |
| 23 | 4 | 53 | 0 | 0 | 0 |
0 | 1.33.1 |
| 24 | 4 | 54 | 0 | 0 | 0 |
0 | 1.33.1 |
+----+------------+-------+--------------+-----------+---------------+----------------+-------------------------+
6 rows in set (0.01 sec)
The error is: fromIndex(4) > toIndex(3)
Additional note: the default pod network subnet did not fit my requirements,
so I modified Calico’s default-ipv4-ippool and restarted all pods. I’m not sure
if this change is related to the scaling issue.
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