CODEWITHSUNDEEP
erlangmnesia
vinnitu
vinnitu

Reputation: 4364

mnesia: intensive usage table

When I receive such message, like this:

** WARNING ** Mnesia is overloaded: {dump_log, write_threshold}

what is approach to known which table is being used intensively? What kind of debugging do I need to do?

Thanks.

Upvotes: 7

Views: 3963

Answers (1)

stephbu
stephbu

Reputation: 5082

Interesting post over on StreamHacker on the subject:

http://streamhacker.com/2008/12/10/how-to-eliminate-mnesia-overload-events/

One of the suggestions in the article is switching to synchronous writes, not sure that this is such a good generic answer. It would certainly change your scaling characteristics, so don't skip engineering and measuring the change.

However both dc_dump_limit and dump_log_write_threshold are good settings to play with. The defaults are somewhat overly sensitive.

Upvotes: 2

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