Race conditions with Ns Set Persist?

[Sep Ng]

I have several ns_set objects in my aolserver with the persist flag on to manage several things but I'm noticing that some of the ns_set objects are losing keys for no apparent reason.  Also at one instance, the ns_set object retrieved belongs to a totally different one.  I'm not sure if there's a bug with ns_set or if there's something wrong with my code, but I thought I'd throw this one out there to see if you guys have experienced this issue before.

Thanks in advance.

[Jeff Rogers]

ns_sets are not internally interlocked. If you are using the same
shared set in multiple threads, you need to protect it with a mutex.

Do you specifically need the indexability of ns_sets? nsvs are easier to
use for most cases, and if you have more than a few keys probably faster
too.

-J

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[Sep Ng]

As far as I can tell, the ns_sets are being used exclusively by specific threads, so the data shouldn't really be going from one ns_set to another, except that it does happen, so I'm thinking there might be something happening with the ns_set implementation.

I'll look into the possibility of using nsvs.