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| Description: |
*Steps to reproduce:*
Unclear, will try to find proper reproductions steps/a load test later.
The the key conditions seem to be a high write load on the security cache, caused, e.g., by a lot of notifications being dispatched with a high user count which causes rights checks for all of them whose results are inserted into the security cache. At the same time, a high number pages are viewed and some pages are modified a group containing most users is updated , causing invalidations in the security cache to be emptied . To really trigger issues, the security cache should be large (like 1M entries) and full, so the invalidation actually takes a few seconds.
*Expected result:*
Accessing pages, in particular pages that are frequently visited, is still fast.
*Actual result:*
Loading any page takes 20-30 seconds. |
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