Thanks Martin,
Apparently the BATs stayed large because my server had crashed.  I
again tried to load a file into my server and it crashed again.  The
reason is probably that I am on a 32 bit machine (osx laptop) and I
was trying to insert a file slightly over 5 gigs.  One of the problems
was that I wasn't getting any messages, I couldn't tell if the file
was even being inserted.

Initially I tried loading my file using the following syntax:
./MapiClient -l sql -d demo -u monetdb -P monetdb -s "copy into
sys.dash5 from 'data/dump.final' using delimiters '|'"
This command just seems to hang there.

I then logged in using mjclient and just issued the command inside the
quotes: "copy into ... using deli..."
This ran for a while then I received the following message:
Error: End of stream reached (Mserver still alive?)

When I checked my server, it had crashed, with the following message:
./mserver5
# MonetDB Server v5.0.0_beta2_1
# Copyright (c) 1993-2007 CWI, all rights reserved
# Compiled for i686-apple-darwin8.8.1/32bit with 32bit OIDs dynamically linked
# dbname:demo
# Visit http://monetdb.cwi.nl/ for further information
#warning: please don't forget to set your vault key!
#(see /Users/me/MonetDB/etc/monetdb5.conf)
>include sql;
>##GDKvmtrim(4294967295)
MT_mmap_trim(4095 MB): rss = 0 MB
##GDKvmtrim(4294967295)
MT_mmap_trim(4095 MB): rss = 0 MB
##GDKvmtrim(4294967295)
MT_mmap_trim(4095 MB): rss = 0 MB
gdk_utils.mx:1149: failed assertion `(oldsize & 2) == 0'
Abort trap

Part of the problem is that I don't really see any messages saying
what the server is doing.  I try to follow the change in disk size (df
-kh) but I saw that number decreasing very slowly and by very small
amount.

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