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Message #81056
[Bug 1856923] [NEW] Virtual machine hot migration failed, no prompt timeout
Public bug reported:
OpenStack verison Pike.
1.memory_remaining_bytes does not decrease
```
nova server-migration-show 675bcaf1-a9ab-452a-8b0f-be57f5b63cd3 2971
+------------------------+--------------------------------------+
| Property | Value |
+------------------------+--------------------------------------+
| created_at | 2019-12-12T05:38:12.000000 |
| dest_compute | cmp063 |
| dest_host | - |
| dest_node | - |
| disk_processed_bytes | 0 |
| disk_remaining_bytes | 0 |
| disk_total_bytes | 0 |
| id | 2971 |
| memory_processed_bytes | 33290950593 |
| memory_remaining_bytes | 20959232 |
| memory_total_bytes | 34364792832 |
| server_uuid | 675bcaf1-a9ab-452a-8b0f-be57f5b63cd3 |
| source_compute | cmp013 |
| source_node | - |
| status | running |
| updated_at | 2019-12-12T05:44:07.000000 |
+------------------------+--------------------------------------+
```
2.nova-compute logs No migration process log after 2% memory remaining
3.abort migration failed
```
2019-12-12 14:31:04,844.844 13398 ERROR nova.virt.libvirt.driver [req-2c8d930b-1a2e-4062-9482-aec0293f675c 78b7f111ca204778858e15d18a3e50a7 d3a063c353814be2957c305396181623 - default default] [instance: 675bcaf1-a9ab-452a-8b0f-be57f5b63cd3] Failed to cancel migration Timed out during operation: cannot acquire state change lock (held by remoteDispatchDomainGetJobStats): libvirtError: Timed out during operation: cannot acquire state change lock (held by remoteDispatchDomainGetJobStats)
2019-12-12 14:31:04,924.924 13398 ERROR oslo_messaging.rpc.server [req-2c8d930b-1a2e-4062-9482-aec0293f675c 78b7f111ca204778858e15d18a3e50a7 d3a063c353814be2957c305396181623 - default default] Exception during message handling: libvirtError: Timed out during operation: cannot acquire state change lock (held by remoteDispatchDomainGetJobStats)
```
** Affects: nova
Importance: Undecided
Status: New
--
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Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1856923
Title:
Virtual machine hot migration failed, no prompt timeout
Status in OpenStack Compute (nova):
New
Bug description:
OpenStack verison Pike.
1.memory_remaining_bytes does not decrease
```
nova server-migration-show 675bcaf1-a9ab-452a-8b0f-be57f5b63cd3 2971
+------------------------+--------------------------------------+
| Property | Value |
+------------------------+--------------------------------------+
| created_at | 2019-12-12T05:38:12.000000 |
| dest_compute | cmp063 |
| dest_host | - |
| dest_node | - |
| disk_processed_bytes | 0 |
| disk_remaining_bytes | 0 |
| disk_total_bytes | 0 |
| id | 2971 |
| memory_processed_bytes | 33290950593 |
| memory_remaining_bytes | 20959232 |
| memory_total_bytes | 34364792832 |
| server_uuid | 675bcaf1-a9ab-452a-8b0f-be57f5b63cd3 |
| source_compute | cmp013 |
| source_node | - |
| status | running |
| updated_at | 2019-12-12T05:44:07.000000 |
+------------------------+--------------------------------------+
```
2.nova-compute logs No migration process log after 2% memory remaining
3.abort migration failed
```
2019-12-12 14:31:04,844.844 13398 ERROR nova.virt.libvirt.driver [req-2c8d930b-1a2e-4062-9482-aec0293f675c 78b7f111ca204778858e15d18a3e50a7 d3a063c353814be2957c305396181623 - default default] [instance: 675bcaf1-a9ab-452a-8b0f-be57f5b63cd3] Failed to cancel migration Timed out during operation: cannot acquire state change lock (held by remoteDispatchDomainGetJobStats): libvirtError: Timed out during operation: cannot acquire state change lock (held by remoteDispatchDomainGetJobStats)
2019-12-12 14:31:04,924.924 13398 ERROR oslo_messaging.rpc.server [req-2c8d930b-1a2e-4062-9482-aec0293f675c 78b7f111ca204778858e15d18a3e50a7 d3a063c353814be2957c305396181623 - default default] Exception during message handling: libvirtError: Timed out during operation: cannot acquire state change lock (held by remoteDispatchDomainGetJobStats)
```
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