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https://issues.apache.org/jira/browse/CLOUDSTACK-9733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15906843#comment-15906843
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ASF GitHub Bot commented on CLOUDSTACK-9733:
--------------------------------------------
Github user cloudmonger commented on the issue:
https://github.com/apache/cloudstack/pull/1897
### ACS CI BVT Run
**Sumarry:**
Build Number 460
Hypervisor xenserver
NetworkType Advanced
Passed=105
Failed=0
Skipped=7
_Link to logs Folder (search by build_no):_
https://www.dropbox.com/sh/yj3wnzbceo9uef2/AAB6u-Iap-xztdm6jHX9SjPja?dl=0
**Failed tests:**
**Skipped tests:**
test_01_test_vm_volume_snapshot
test_vm_nic_adapter_vmxnet3
test_static_role_account_acls
test_11_ss_nfs_version_on_ssvm
test_nested_virtualization_vmware
test_3d_gpu_support
test_deploy_vgpu_enabled_vm
**Passed test suits:**
test_deploy_vm_with_userdata.py
test_affinity_groups_projects.py
test_portable_publicip.py
test_over_provisioning.py
test_global_settings.py
test_scale_vm.py
test_service_offerings.py
test_routers_iptables_default_policy.py
test_loadbalance.py
test_routers.py
test_reset_vm_on_reboot.py
test_deploy_vms_with_varied_deploymentplanners.py
test_network.py
test_router_dns.py
test_non_contigiousvlan.py
test_login.py
test_deploy_vm_iso.py
test_list_ids_parameter.py
test_public_ip_range.py
test_multipleips_per_nic.py
test_regions.py
test_affinity_groups.py
test_network_acl.py
test_pvlan.py
test_volumes.py
test_nic.py
test_deploy_vm_root_resize.py
test_resource_detail.py
test_secondary_storage.py
test_vm_life_cycle.py
test_routers_network_ops.py
test_disk_offerings.py
> Concurrent volume snapshots of a VM are not allowed and are not limited per
> host as per the global configuration parameter
> "concurrent.snapshots.threshold.perhost".
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-9733
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9733
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Snapshot, Volumes
> Reporter: Suresh Kumar Anaparti
> Assignee: Suresh Kumar Anaparti
> Fix For: 4.10.0.0
>
>
> Pre-CloudStack 4.4.0, before the VM job framework changes (CLOUDSTACK-669),
> Concurrent volume (both root and data) snapshots were allowed per host based
> on the value of global config "concurrent.snapshots.threshold.perhost". The
> volumes could belong to the same VM or spread across multiple VMs on a given
> host. The synchronisation was done based on the host (Id).
> As part of the VM job framework changes (CLOUDSTACK-669) in CloudStack 4.4.0,
> a separate job queue was introduced for individual VMs with a concurrency
> level of 1 (i.e. all operations to a given VM are serialized). Volume
> snapshot was also considered as a VM operation as part of these changes and
> goes through the VM job queue. These changes made the config
> "concurrent.snapshots.threshold.perhost" obsolete (it was also no longer
> getting honoured, since there is no single point of enforcement).
> Only one volume snapshot of a VM is allowed at any given point of time as the
> sync object is the VM (id). So concurrent volume snapshots of a VM are not
> allowed and are not limited per host as per the global configuration
> parameter "concurrent.snapshots.threshold.perhost".
> This functionality needs to be re-introduced to execute more than 1 snapshot
> of a VM at a time (when the underlying hypervisor supports) and snapshots
> should be limited per host based on the value of
> "concurrent.snapshots.threshold.perhost" at the cluster level (for more
> flexibility).
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