Closed Bug 417525 Opened 18 years ago Closed 18 years ago

memcache cache hit rate is 65% and lower during peak traffic

Categories

(addons.mozilla.org Graveyard :: Administration, defect)

Product:
addons.mozilla.org Graveyard
Component:
Administration
Platform:
x86
macOS
Type:
defect
Priority:
Not set
Severity:
blocker

Tracking

(Not tracked)

Status:
RESOLVED FIXED

People

(Reporter: morgamic, Assigned: laura)

Details

Our memcache hit rate is low, we need to get it up to 90%-ish to save the db slaves from melting. Last night the patch aplied saved the master but we need to take things a step further and save the slaves. Take a closer look at the api_controller as well as the existing AMO controllers to find out why our cache hit rate is so low, and post a fix ASAP.
Severity: normal → blocker
Summary: memcache cache hit rate is 65% and lower during peak traffice → memcache cache hit rate is 65% and lower during peak traffic
Don't know if I am stating the obvious here, but when I looked at the server statistics earlier, the cache hit rates were at 90ish for both servers.
Back to 90% because we increased CACHE_PAGES_FOR. Current value is 7200, we can lower later, but for now until we have other optimizations in place we need to cache more aggressively.
Status: NEW → RESOLVED
Closed: 18 years ago
Resolution: --- → FIXED
Product: addons.mozilla.org → addons.mozilla.org Graveyard
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