Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 96 by tru64ufs: prefix structure memory leak
http://code.google.com/p/memcached/issues/detail?id=96
What steps will reproduce the problem?
1. memcached -D: -m 10
2. keep insert unique keys with no prefix :
3. watch resident set size of memcached process, it keeps growing without
stopping
What is the expected output? What do you see instead?
RSS should stabilize at some point (maybe 10MB + 10%)
What version of the product are you using? On what operating system?
memcached 1.4.1, Linux CentOS 5.3
Please provide any additional information below.
settings.detail_enabled = 1;
causes calls to stats_prefix_record_*()
these calls stats_prefix_find() which calloc() and malloc() PREFIX_STATS
structures if not found.
Since we are keep inserting unique keys, memcached keeps calloc/malloc
these structures.
The only thing that frees all the memory is to call "STATS RESET"
But I think it is better for key structure to have a pointer to this
prefix_stats structures with refcount.
When a refcount goes zero, you can free these structures.
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