1. devstack
  2. Commit 54edc7aeef97df768477b5fa14f8fc45266a9c2e
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tempest: Increase m1.nano and m1.micro RAM by 64MB to avoid tmpfs exhaustion

tmpfs exhaustion has long been suspected as the root issue behind
failures to load ssh keys and other metadata from local config drives as
documented in bug #1808010. This can also lead to failures fetching
metadata from n-metadata-api leaving Tempest unable to SSH into
instances.

This change increases the RAM of the m1.nano and m1.micro flavors by
64MB to hopefully avoid these errors going forward. This is also ahead
of our eventual upgrade to Cirros 0.5.0 where 128MB becomes a
requirement.

Related-Bug: #1808010
Change-Id: I4b597579cf89939955d3c110c0bd58ca05de61f0

Lee Yarwood authored on 2020/05/22 21:03:15
Showing 1 changed files
lib/tempest
History View file @ 54edc7a
... ... 
@@ -203,13 +203,13 @@ function configure_tempest {
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             if [[ ! ( $available_flavors =~ 'm1.nano' ) ]]; then
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                 # Determine the flavor disk size based on the image size.
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                 disk=$(image_size_in_gib $image_uuid)
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-                openstack flavor create --id 42 --ram 64 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.nano
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+                openstack flavor create --id 42 --ram 128 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.nano
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             fi
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             flavor_ref=42
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             if [[ ! ( $available_flavors =~ 'm1.micro' ) ]]; then
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                 # Determine the alt flavor disk size based on the alt image size.
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                 disk=$(image_size_in_gib $image_uuid_alt)
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-                openstack flavor create --id 84 --ram 128 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.micro
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+                openstack flavor create --id 84 --ram 192 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.micro
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             fi
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             flavor_ref_alt=84
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         else