Fix/11.0/fix ticket10723/mem overload n#7832
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mksahakyan merged 3 commits into11.0from Jun 29, 2025
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…overload.
In the ticket 10723 was discovered that dCache caching a response for
a rejected authentication attempt, based on the identity.
(in case of chained certificates) might create 100k "cached" failed login entries in dCache.
This can lead to overeading to an overload and triggering java garbage collectors
running at 100 % CPU and large memory consumption.
Motivation
dCache Overload from Failed Logins via Chained Proxies.
Modification
Replace CopyOnWriteArraySet with Guava cache.
Result
FailedLogins will now be keeping only the last specfied number of logs by `gplazma.authz.max-cache-size= 10000` property.
Acked-by: Tigra Mkrtchyan
Target: master. 11.0, 10.2, 10.1, 10.0, 9.2
Require-book: no
Require-notes: yes
Patch: https://rb.dcache.org/r/14444/
Motivation stic field for the KnownFailedLogins
(cherry picked from commit f5f9278) Signed-off-by: sahakya <marina.sahakyan@desy.de>
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