[elephant-devel] trouble getting going (with open-store, ...)

[Ian Eslick]

I'm sorry if the website hasn't been updated (Robert, can you check
this?), but the tutorial should be updated to reflect the new (as of
0.6.0) open-store protocol, which requires specification of the type of
backend you'll be using.  A specification is a list of two elements; a
backend type specification [:bdb, :clsql] and backend-specific store
information:

(open-store '(:bdb "/home/user/db/testdb"))
(open-store '(:clsql (:sqlite3 "sqlite3-test.db"))
(open-store '(:clsql (:postgresql "localhost.localdomain" "test"
"postgres" "")))

The tests should print a long list of test names, then return T.
To run the tests you need to follow the comments in elephant-tests.lisp:

;;
;; GUIDE TO TESTING
;;
;; 1) Set *default-spec* to the above spec of your choice
;; 2) Call (do-backend-tests) to test the standard API
;; 3) To test migration: (do-migration-tests *default-spec*
<second-spec>) inserting a second
;;    spec, typically a bdb spec or create another instance of a sql db
depending on
;;    your configuration
;; 4) A backend is green if it passes do-backend-tests and can
succesfully be
;;    used as spec1 or spec2 argument in the migration test
;;

To set *default-spec* you need to do something like:

(setq *default-spec* *testbdb-spec*)

or

(setq *default-spec* *testsqlite3-spec*)

Can you list the various problems you had trying to get the system to
run?  We're working on useability for the next release and want to fix
as many of the inconveniences as possible.

Thank you,
Ian

Red Daly wrote:
> I have been trying to get Elephant up and running for a few days with
> little luck.  I have tried CMUCL and SBCL, with different unsuccessful
> outcomes.  During my latest attempt on SBCL, I seem to be able to call
> the following two lines without errors:
> (asdf:operate 'asdf:load-op :elephant)
> (asdf:operate 'asdf:load-op :ele-bdb)
>
> I then run the tests...
> (asdf:operate 'asdf:load-op :elephant-tests)
> (in-package :ele-tests)
> (setf *default-spec* "bdb")
> (do-backend-tests)
>
> do-backend-tests returns NIL.. which I interpret to be success?
>
>
> however, I am unable to open a store according to the instructions in
> the two tutorials on the common-lisp.net project site.  Here is an
> example attempt:
>
> * (open-store "store")
>
> debugger invoked on a SIMPLE-ERROR in thread
> #<THREAD "initial thread" {A7B93E1}>:
>   The assertion (CONSP ELEPHANT::SPEC) failed.
>
> Type HELP for debugger help, or (SB-EXT:QUIT) to exit from SBCL.
>
> restarts (invokable by number or by possibly-abbreviated name):
>   0: [CONTINUE] Retry assertion.
>   1: [ABORT   ] Exit debugger, returning to top level.
>
> (SB-KERNEL:ASSERT-ERROR (CONSP ELEPHANT::SPEC) NIL NIL)
> 0] backtrace
>
> 0: (SB-KERNEL:ASSERT-ERROR (CONSP ELEPHANT::SPEC) NIL NIL)
> 1: (OPEN-STORE "store" :RECOVER NIL :RECOVER-FATAL NIL :THREAD T)
> 2: (SB-INT:EVAL-IN-LEXENV (OPEN-STORE "store") #<NULL-LEXENV>)
> 3: (SB-EXT:INTERACTIVE-EVAL (OPEN-STORE "store"))
> 4: (SB-IMPL::REPL-FUN NIL)
> 5: ((LAMBDA ()))
> 6: ((LAMBDA ()))
> 7: (SB-IMPL::%WITH-REBOUND-IO-SYNTAX #<CLOSURE (LAMBDA #) {A7F28FD}>)
> 8: (SB-IMPL::TOPLEVEL-REPL NIL)
> 9: (SB-IMPL::TOPLEVEL-INIT)
> 10: ((LABELS SB-IMPL::RESTART-LISP))
>
>
> I would appreciate any help in getting elephant up and running.  I am
> running SBCL 0.9.8, ubuntu dapper, and bdb 4.3 (apt-installable
> version).  I will gladly supply more information to help determine the
> error of my ways.  I can't wait to try out elephant!
>
> Thanks sincerely,
> red daly
>
> _______________________________________________
> elephant-devel site list
> elephant-devel at common-lisp.net
> http://common-lisp.net/mailman/listinfo/elephant-devel
>