Public bug reported:
An extra call is made to nova-api for fetching server details to check it's
existence.
Once existence of server is confirmed, after that "server migration list" call
is made to nova-api.
In existing nova cli code flow, if server does not exist and "nova
server-migration-list {server-id}" is invoked, it will display error to user
and will not execute server migration list API call.
In contrary, if user directly execute curl command to fetch migration list for
server which does not exists, then also same error message is displayed to user.
So, it seems extra call to check existence of server.
Solution:
Code should be improved to eliminate extra nova-api call to check server
existence before executing concerned command.
Server migration list can directly be executed through curl to avoid extra call
to check server existence before invoking server migration list.
curl -g -i -X GET
http://{hostip}:8774/v2.1/{tenant_id}/servers/{server_id}/migrations -H
"Accept: application/json" -H "X-OpenStack-Nova-API-Version: 2.23" -H
"X-Auth-Token:{token_id}".
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1764372
Title:
while executing ServerMigrationList use-case an extra call is made to
nova-api for fetching server details.
Status in OpenStack Compute (nova):
New
Bug description:
An extra call is made to nova-api for fetching server details to check it's
existence.
Once existence of server is confirmed, after that "server migration list"
call is made to nova-api.
In existing nova cli code flow, if server does not exist and "nova
server-migration-list {server-id}" is invoked, it will display error to user
and will not execute server migration list API call.
In contrary, if user directly execute curl command to fetch migration list
for server which does not exists, then also same error message is displayed to
user.
So, it seems extra call to check existence of server.
Solution:
Code should be improved to eliminate extra nova-api call to check server
existence before executing concerned command.
Server migration list can directly be executed through curl to avoid extra
call to check server existence before invoking server migration list.
curl -g -i -X GET
http://{hostip}:8774/v2.1/{tenant_id}/servers/{server_id}/migrations -H
"Accept: application/json" -H "X-OpenStack-Nova-API-Version: 2.23" -H
"X-Auth-Token:{token_id}".
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https://bugs.launchpad.net/nova/+bug/1764372/+subscriptions
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