Hi Kevin,
I have some theories, but no conclusion yet. I did revert two very
small changes which could have been responsible. Please rebuild and
see if you can reproduce.
Thank you,
Ian
On Jan 7, 2009, at 9:10 PM, Kevin Raison wrote:
> I was finally able to recreate this in the repl (as opposed to
> seeing it
> in my error logs), so here is a trace:
>
> The slot DB-BDB::INDICES-CACHE is unbound in the object
> #<BDB-INDEXED-BTREE oid:2>.
> [Condition of type UNBOUND-SLOT]
>
> Backtrace:
> 0: ((SB-PCL::FAST-METHOD SLOT-UNBOUND (T T T)) #<unavailable
> argument> #<unavailable argument> #<unavailable argument>
> #<BDB-INDEXED-BTREE oid:2> DB-BDB::INDICES-CACHE)
> 1: (SB-PCL::SLOT-UNBOUND-INTERNAL #<BDB-INDEXED-BTREE oid:2> 2)
> 2: ((SB-PCL::FAST-METHOD (SETF GET-VALUE) (T T
> DB-BDB::BDB-INDEXED-BTREE)) #<unavailable lambda list>)
> 3: ((LAMBDA (WORD)) "34766")
> 4: (SB-IMPL::MAP1 #<CLOSURE (LAMBDA #) {1003CA4ED9}> (("" "asa"
> "106007" "deny" "inbound" "udp" ...)) :LIST T)
> 5: (MAPCAR #<CLOSURE (LAMBDA #) {1003CA4ED9}> ("" "asa" "106007"
> "deny" "inbound" "udp" ...))[:EXTERNAL]
> 6: ((SB-PCL::FAST-METHOD INDEX-LOG-ENTRY (LOG-ENTRY)) #<unavailable
> argument> #<unavailable argument> #<LOG-ENTRY oid:6373>)
> 7: ((LAMBDA ()))
> 8: ((SB-PCL::FAST-METHOD ELEPHANT::EXECUTE-TRANSACTION
> (DB-BDB::BDB-STORE-CONTROLLER T)) #<unavailable argument>
> #<unavailable
> argument> #<unavailable argument> #<unavailable argument>)[:EXTERNAL]
> 9: (ADD-LOG-ENTRY ..)
> 10: (SB-INT:SIMPLE-EVAL-IN-LEXENV ..)
>
> And here is the code that sometimes causes the issue:
> (defmethod index-log-entry ((log-entry log-entry))
> (let ((*store-controller* *syslog-controller*))
> (let ((btree (get-from-root "log-entry-index" :sc
> *syslog-controller*)))
> (map-words #'(lambda (word)
> (unless (or (member word *superfluous-
> words* :test
> #'string-equal)
> (< (length word) 2))
> (unless (existsp word btree)
> (setf (get-value word btree) (make-pset :sc
> *syslog-controller*)))
> (insert-item log-entry
> (get-value word btree))))
> (text log-entry)))))
>
>
> If I drop and recreate the btree, everything runs smoothly (no errors)
> for a few hours and then the above error message starts showing up
> about
> half to three quarters of the time.
>
> Thanks again,
> Kevin
>
>
> Kevin Raison wrote:
>> I am seeing an intermittent error with 1.0 alpha when trying to
>> write to
>> an indexed btree (using BerkeleyDB 4.7 as provided by Ubuntu's
>> package
>> repositories):
>>
>> The slot DB-BDB::INDICES-CACHE is unbound in the object
>> #<BDB-INDEXED-BTREE oid:2>
>>
>> Within the same thread, sometimes this happens and sometimes I am
>> able
>> to read and write to the btree. I am using sbcl 1.0.24 on 32 bit
>> intel
>> linux. Is there something obvious that might help alleviate this or
>> should I provide more context?
>>
>> Thanks!
>> Kevin
>>
>> _______________________________________________
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>> elephant-devel@common-lisp.net
>> http://common-lisp.net/mailman/listinfo/elephant-devel
>
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