Dipit Grover has uploaded this change for review.
Idmapper: Limit max group-cache entries, and add a fifo queue
This change limits the max number of group entries in the cache.
The limit is configurable through the DIRECTORY_SERVICES
section in Ganesha config.
The cache eviction strategy is determined using the fifo queue.
The fifo queue order mimics the order of expiration time of the
cache entries, since expiration time is a linear function of
the insertion time --
expiration_time = insertion_time + cache_validity (constant)
The head of the queue therefore contains the entry with least
time-validity, and the tail of the queue contains the entry
with most time-validity. The eviction happens from the head,
and insertion happens at the tail.
Change-Id: If590670162bd5a814959d4a81d5fd02eaa990256
Signed-off-by: Dipit Grover <dipit@google.com>
---
M src/doc/man/ganesha-core-config.rst
M src/idmapper/idmapper_cache.c
M src/include/gsh_config.h
M src/support/nfs_read_conf.c
4 files changed, 25 insertions(+), 0 deletions(-)
git pull ssh://review.gerrithub.io:29418/ffilz/nfs-ganesha refs/changes/42/1177642/1
To view, visit change 1177642. To unsubscribe, or for help writing mail filters, visit settings.