[elephant-devel] Strange behavior with indexed-btree
Kevin Raison
raison at chatsubo.net
Sat Jan 10 19:04:03 UTC 2009
After pulling the latest patches and rebuilding without optimizations as
you suggest, I get the following errors, the second of which is slightly
different than what I was receiving previously.
First, a deserialization error:
Condition ELEPHANT-TYPE-DESERIALIZATION-ERROR was signalled.
[Condition of type ELEPHANT-TYPE-DESERIALIZATION-ERROR]
Restarts:
0: [RETRY] Retry SLIME REPL evaluation request.
1: [ABORT] Return to SLIME's top level.
2: [TERMINATE-THREAD] Terminate this thread (#<THREAD "repl-thread"
RUNNING {10034F31F1}>)
Backtrace:
0: ((LAMBDA (SWANK-BACKEND::DEBUGGER-LOOP-FN)) #<FUNCTION (LAMBDA #)
{10040B2389}>)
1: (SWANK::DEBUG-IN-EMACS #<ELEPHANT-TYPE-DESERIALIZATION-ERROR
{1002CB3531}>)
2: (SWANK:INVOKE-SLIME-DEBUGGER #<ELEPHANT-TYPE-DESERIALIZATION-ERROR
{1002CB3531}>)
3: ((LAMBDA (SWANK-BACKEND::HOOK SWANK-BACKEND::FUN)) #<FUNCTION
SWANK:SWANK-DEBUGGER-HOOK> #<CLOSURE (LAMBDA #) {1002CB3AC9}>)
4: (INVOKE-DEBUGGER #<ELEPHANT-TYPE-DESERIALIZATION-ERROR {1002CB3531}>)
5: ((FLET #:FUN23) #<ELEPHANT-TYPE-DESERIALIZATION-ERROR {1002CB3531}>)
6: ((SB-PCL::FAST-METHOD ELEPHANT::EXECUTE-TRANSACTION
(DB-BDB::BDB-STORE-CONTROLLER T)) ..)[:EXTERNAL]
7: (SB-INT:SIMPLE-EVAL-IN-LEXENV (REINDEX-LOG-ENTRIES) #<NULL-LEXENV>)
8: (SWANK::EVAL-REGION "(reindex-log-entries)\n")
9: ((LAMBDA ()))
10: (SWANK::TRACK-PACKAGE #<CLOSURE (LAMBDA #) {1002C596F9}>)
11: (SWANK::CALL-WITH-RETRY-RESTART "Retry SLIME REPL evaluation
request." #<CLOSURE (LAMBDA #) {1002C59619}>)
12: (SWANK::CALL-WITH-BUFFER-SYNTAX NIL #<CLOSURE (LAMBDA #)
{1002C595E9}>)
13: (SWANK::REPL-EVAL "(reindex-log-entries)\n")
And then this one with any subsequent access to the bdb:
Bad type argument:
BDB-DB-ERROR
[Condition of type SIMPLE-TYPE-ERROR]
Restarts:
0: [RETRY] Retry SLIME REPL evaluation request.
1: [ABORT] Return to SLIME's top level.
2: [TERMINATE-THREAD] Terminate this thread (#<THREAD "repl-thread"
RUNNING {10034F31F1}>)
Backtrace:
0: (MAKE-CONDITION BDB-DB-ERROR)[:EXTERNAL]
1: (ERROR BDB-DB-ERROR)[:EXTERNAL]
2: ((SB-PCL::FAST-METHOD ELEPHANT::EXECUTE-TRANSACTION
(DB-BDB::BDB-STORE-CONTROLLER T)) #<unused argument> #<unused argument>
#<BDB-STORE-CONTROLLER /srv/console/db/> #<CLOSURE (LAMBDA #) {10037C53D9$
3: (ADD-LOG-ENTRY)[:EXTERNAL]
4: (SB-INT:SIMPLE-EVAL-IN-LEXENV (ADD-LOG-ENTRY :SEVERITY 2
:HOST-UUID "123" :TIMESTAMP ...) #<NULL-LEXENV>)
5: (SWANK::EVAL-REGION "(add-log-entry :severity 2 :host-uuid \"123\"
:timestamp (get-universal-time)\n :program
\"blah\" :text \"test entry\")\n")
6: ((LAMBDA ()))
7: (SWANK::TRACK-PACKAGE #<CLOSURE (LAMBDA #) {10037C1BF9}>)
8: (SWANK::CALL-WITH-RETRY-RESTART "Retry SLIME REPL evaluation
request." #<CLOSURE (LAMBDA #) {1003636499}>)
9: (SWANK::CALL-WITH-BUFFER-SYNTAX NIL #<CLOSURE (LAMBDA #)
{1003636469}>)
10: (SWANK::REPL-EVAL "(add-log-entry :severity 2 :host-uuid \"123\"
:timestamp (get-universal-time)\n :program \"blah\"
:text \"test entry\")\n")
11: (SB-INT:SIMPLE-EVAL-IN-LEXENV (SWANK:LISTENER-EVAL "(add-log-entry
:severity 2 :host-uuid \"123\" :timestamp (get-universal-time)\n
:program \"blah\" :text \"test entry\")\n"$
12: (SWANK::EVAL-FOR-EMACS (SWANK:LISTENER-EVAL "(add-log-entry
:severity 2 :host-uuid \"123\" :timestamp (get-universal-time)\n
:program \"blah\" :text \"test entry\")\n") "CONSO$
13: (SWANK::PROCESS-REQUESTS NIL)
14: ((LAMBDA ()))
15: ((LAMBDA (SWANK-BACKEND::HOOK SWANK-BACKEND::FUN)) #<FUNCTION
SWANK:SWANK-DEBUGGER-HOOK> #<CLOSURE (LAMBDA #) {10038AD269}>)
16: (SWANK::CALL-WITH-REDIRECTED-IO #<SWANK::CONNECTION {10032FB281}>
#<CLOSURE (LAMBDA #) {10038AD289}>)
17: (SWANK::CALL-WITH-CONNECTION #<SWANK::CONNECTION {10032FB281}>
#<CLOSURE (LAMBDA #) {10038AD269}>)
18: (SWANK::HANDLE-REQUESTS #<SWANK::CONNECTION {10032FB281}> NIL)
19: (SWANK::CALL-WITH-BINDINGS NIL #<CLOSURE (LAMBDA #) {10034F5189}>)
20: ((FLET SB-THREAD::WITH-MUTEX-THUNK))
21: ((FLET #:WITHOUT-INTERRUPTS-BODY-[CALL-WITH-MUTEX]477))
22: (SB-THREAD::CALL-WITH-MUTEX ..)
23: ((LAMBDA ()))
24: ("foreign function: call_into_lisp")
25: ("foreign function: new_thread_trampoline")
Ian Eslick wrote:
> Also try pushing :elephant-without-optimize onto *features* prior to
> doing a force rebuild of elephant. This should give you some more
> information and rule out any optimization/declaration related bugs.
>
> 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
>>>
>>> _______________________________________________
>>> elephant-devel site list
>>> elephant-devel at common-lisp.net
>>> http://common-lisp.net/mailman/listinfo/elephant-devel
>> _______________________________________________
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>> elephant-devel at common-lisp.net
>> http://common-lisp.net/mailman/listinfo/elephant-devel
>
>
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