Add cache client retry options for the pymemcache backend

This patch specifies a set of options required to setup the retrying
wrapper feature of pymemcache (dogpile.cache) cache backend.

Original oslo.cache change:
https://review.opendev.org/c/openstack/oslo.cache/+/803747

Co-Authored-By: Hervé Beraud <hberaud@redhat.com>
Depends-On: https://review.opendev.org/826869
Change-Id: Ie28399b714f1707edfc6832cebd739dd3710cff8
This commit is contained in:
Takashi Kajinami 2022-02-16 11:27:04 +09:00
parent 37d5b04d78
commit be95d672a8
3 changed files with 34 additions and 0 deletions

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@ -167,6 +167,21 @@
# be available.
# Default to $::os_service_default
#
# [*enable_retry_client*]
# (Optional) Enable retry client mechanisms to handle failure.
# Those mechanisms can be used to wrap all kind of pymemcache
# clients. The wrapper allows you to define how many attempts
# to make and how long to wait between attemots.
# Default to $::os_service_default
#
# [*retry_attempts*]
# (Optional) Number of times to attempt an action before failing.
# Default to $::os_service_default
#
# [*retry_delay*]
# (Optional) Number of seconds to sleep between each attempt.
# Default to $::os_service_default
#
class heat::cache (
$config_prefix = $::os_service_default,
$expiration_time = $::os_service_default,
@ -197,6 +212,9 @@ class heat::cache (
$tls_certfile = $::os_service_default,
$tls_keyfile = $::os_service_default,
$tls_allowed_ciphers = $::os_service_default,
$enable_retry_client = $::os_service_default,
$retry_attempts = $::os_service_default,
$retry_delay = $::os_service_default,
) {
include heat::deps
@ -225,6 +243,9 @@ class heat::cache (
tls_certfile => $tls_certfile,
tls_keyfile => $tls_keyfile,
tls_allowed_ciphers => $tls_allowed_ciphers,
enable_retry_client => $enable_retry_client,
retry_attempts => $retry_attempts,
retry_delay => $retry_delay,
}
heat_config {

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@ -0,0 +1,4 @@
---
features:
- |
Add cache client retry options for the pymemcache (dogpile.cache) backend.

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@ -33,6 +33,9 @@ describe 'heat::cache' do
:tls_certfile => '<SERVICE DEFAULT>',
:tls_keyfile => '<SERVICE DEFAULT>',
:tls_allowed_ciphers => '<SERVICE DEFAULT>',
:enable_retry_client => '<SERVICE DEFAULT>',
:retry_attempts => '<SERVICE DEFAULT>',
:retry_delay => '<SERVICE DEFAULT>',
:manage_backend_package => true,
)
is_expected.to contain_heat_config('constraint_validation_cache/caching').with_value('<SERVICE DEFAULT>')
@ -64,6 +67,9 @@ describe 'heat::cache' do
:memcache_pool_unused_timeout => '120',
:memcache_pool_connection_get_timeout => '360',
:tls_enabled => false,
:enable_retry_client => false,
:retry_attempts => 2,
:retry_delay => 0,
:manage_backend_package => false,
:constraint_validation_caching => true,
:constraint_validation_expiration_time => '3600',
@ -98,6 +104,9 @@ describe 'heat::cache' do
:tls_certfile => '<SERVICE DEFAULT>',
:tls_keyfile => '<SERVICE DEFAULT>',
:tls_allowed_ciphers => '<SERVICE DEFAULT>',
:enable_retry_client => false,
:retry_attempts => 2,
:retry_delay => 0,
:manage_backend_package => false,
)
is_expected.to contain_heat_config('constraint_validation_cache/caching').with_value('true')