Public bug reported:
When user has a lot of machines using flavour which is not available
anymore, performance of instance list panel is very bad. The reason is
the redundant API call in instances/views.py for each machine like this.
Horizon first grabs a list of all available flavours and then iterates
through all machines. If for a particular one flavour is not on the
cached list, it sends an API request to nova. I believe it's redundant,
as if the flavour was not grabbed in the first call, it won't appear in
any of the following.
** Affects: horizon
Importance: Undecided
Assignee: Mateusz Kowalski (makowals)
Status: In Progress
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https://bugs.launchpad.net/bugs/1655300
Title:
Low performance when instances are using not available flavour
Status in OpenStack Dashboard (Horizon):
In Progress
Bug description:
When user has a lot of machines using flavour which is not available
anymore, performance of instance list panel is very bad. The reason is
the redundant API call in instances/views.py for each machine like
this.
Horizon first grabs a list of all available flavours and then iterates
through all machines. If for a particular one flavour is not on the
cached list, it sends an API request to nova. I believe it's
redundant, as if the flavour was not grabbed in the first call, it
won't appear in any of the following.
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