Why is 0% or low cache hit rate for nscd?
Issue
- Why is 0% or low cache hit rate for nscd?
Sample output:
# nscd -g | grep -A 22 "passwd cache:"
passwd cache:
yes cache is enabled
no cache is persistent
yes cache is shared
211 suggested size
216064 total data pool size
768 used data pool size
600 seconds time to live for positive entries
20 seconds time to live for negative entries
0 cache hits on positive entries
0 cache hits on negative entries
3 cache misses on positive entries
3 cache misses on negative entries
0% cache hit rate
8 current number of cached values
8 maximum number of cached values
0 maximum chain length searched
0 number of delays on rdlock
0 number of delays on wrlock
0 memory allocations failed
yes check /etc/passwd for changes
Environment
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 6
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