For any couchdb newbies that are distel users, I figured out the
following tweaks to run couch in the debugger:
Assuming couch is built to run from the sources directory with couch-
dev.ini
1. run the couchdb script using the -i option, where the script has
been modified to add a -sname mynodename to the erl command
./bin/couchdb -i -c couch-dev.ini
2. from the erlang shell change to the sources directory:
cd("src/couchdb").
3. compile modules with debug info as needed:
c(couch_btree,[debug_info]).
4. in emacs, rather than starting an erlang shell, attach to the
running couch:
C-c C-d n and specify the node name passed into -sname in the
couchdb script
set breakpoints, load modules, etc... as usual
I find it useful to be able to step through the code and highly
recommend distel for any emacs users. The M-. feature alone is worth
it. Because it attaches to a running erlang node looking up all the
code sources is free. For more details see http://bc.tech.coop/blog/
070528.html
Bob Dionne
http://dionne-associates.com
