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fix: use shared cache backend across WSGI workers #2290

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Merged
keshav-space merged 2 commits into from
Apr 30, 2026
+16 −5
Merged

fix: use shared cache backend across WSGI workers #2290

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a68d2fd
fix: use shared cache backend across WSGI workers
keshav-space Apr 30, 2026
61c4693
feat: use additional worker count to indicate load factor
keshav-space Apr 30, 2026
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4 changes: 2 additions & 2 deletions vulnerabilities/templates/pipeline_dashboard.html
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Original file line number Diff line number Diff line change
Expand Up @@ -86,13 +86,13 @@ <h1>Pipeline Dashboard</h1>
worker{{ additional|pluralize }} for the {{ queue_name }} queue.">
<span class="icon"><i class="fa fa-exclamation-triangle"></i></span>
</span>
{% elif load_factor < 1 %}
{% elif additional < 1 %}
<span class="has-text-weight-bold is-size-6 has-text-success has-tooltip-arrow has-tooltip-multiline has-tooltip-success"
data-tooltip="{{ queue_name|capfirst }} queue perfectly balanced.">
{{ load_factor|floatformat:2 }}
<span class="icon"><i class="fa fa-check-circle"></i></span>
</span>
{% elif load_factor < 1.6 %}
{% elif additional < 2 %}
<span class="has-text-weight-bold is-size-6 has-text-orange has-tooltip-arrow has-tooltip-multiline has-tooltip-orange"
data-tooltip="Consider adding {{ additional }} additional worker{{ additional|pluralize }} to the {{ queue_name }} queue.">
{{ load_factor|floatformat:2 }}
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5 changes: 2 additions & 3 deletions vulnerabilities/views.py
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Original file line number Diff line number Diff line change
Expand Up @@ -59,8 +59,6 @@

PAGE_SIZE = 10

CACHE_TIMEOUT = 60 * 5


class VulnerableCodeView(View):
"""
Expand Down Expand Up @@ -965,11 +963,12 @@ def get_queryset(self):

def get_context_data(self, **kwargs):
context = super().get_context_data(**kwargs)
cache_timeout = 60 * 10
load_per_queue = cache.get("load_per_queue")

if load_per_queue is None:
load_per_queue = compute_queue_load_factor()
cache.set("load_per_queue", load_per_queue, CACHE_TIMEOUT)
cache.set("load_per_queue", load_per_queue, cache_timeout)

context["load_per_queue"] = load_per_queue
context["active_pipeline_count"] = PipelineSchedule.objects.filter(is_active=True).count()
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12 changes: 12 additions & 0 deletions vulnerablecode/settings.py
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Expand Up @@ -402,6 +402,18 @@
}


vcio_redis_host = env.str("VULNERABLECODE_REDIS_HOST", default=None)
vcio_redis_port = env.str("VULNERABLECODE_REDIS_PORT", default=None)

if vcio_redis_host and vcio_redis_port:
CACHES = {
"default": {
"BACKEND": "django.core.cache.backends.redis.RedisCache",
"LOCATION": f"redis://{vcio_redis_host}:{vcio_redis_port}",
}
}


# FederatedCode integration

FEDERATEDCODE_VULNERABILITIES_REPO = env.str(
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