[erlang-questions] my mnesia is lazy

Ulf Wiger ulf.wiger@REDACTED
Fri May 8 10:49:45 CEST 2009

Mnesia sends that report when a log dump starts before
the previous log dump has finished. It doesn't have to
be a problem, but is an indication that Mnesia is, at least
temporarily, a bit backlogged.

Things to look at to improve the situation is to use a
thread pool (if you aren't already), and perhaps tune
the values of dump_log_time_threshold and dump_log_write_threshold.

Ulf W

Larry White wrote:
> I just started working with mnesia and it seems to be working fine, but 
> I keep getting streams of these error messages when it isn't doing 
> anything at all in terms of handling requests:
> =ERROR REPORT==== 7-May-2009::14:37:29 ===
> Mnesia(nonode@REDACTED): ** WARNING ** Mnesia is overloaded: {dump_log,
>                                                             time_threshold}
> It happens a few times every day.  Is this normal behavior?

Ulf Wiger
CTO, Erlang Training & Consulting Ltd

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