Bugs item #2851106, was opened at 2009-09-04 14:27
Message generated for change (Comment added) made by jflokstra
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Category: PFtijah
Group: Pathfinder "stable"
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Ying Zhang (yingying)
Assigned to: Jan Flokstra (jflokstra)
Summary: PF: problems with Tijah doc tape
Initial Comment:
I sometimes get the error that there is no matching MIL operator for some Tijah
doc tape MIL proc.
This happens some what unpredictable, i.e., it doesn't happen every time.
However, once I start to get this error, it won't disappear even by restarting
Mserver.
I have seen this error on different systems, e.g. FC10 and Mac OS10.5.
The error occurs both with the algebra and the MPS backend.
In the following mclient sessions, I was trying to add a document to a new DB.
It returns the error, while the documents have been added.
$ mclient -lx
xquery>pf:add-doc("/ufs/zhang/xmark/tkde/xmark2mb.xml", "test.xml", 'test',10)
more><>
MAPI = mone...@localhost:50000
QUERY = pf:add-doc("/ufs/zhang/xmark/tkde/xmark2mb.xml", "test.xml", 'test',10)
ERROR = !ERROR: interpret: no matching MIL operator to
'ALG_tj_docmgmt_tape(BAT[str,BAT], BAT[oid,BAT], BAT[oid,str], BAT[oid,str],
BAT[oid,str], BAT[oid,lng])'.
xquery>count(doc("test.xml"))
more><>
1
xquery>\q
$ mclient -lx -g
xquery>pf:add-doc("/ufs/zhang/xmark/tkde/xmark2mb.xml", "test2.xml", 'test',10)
more><>
MAPI = mone...@localhost:50000
QUERY = pf:add-doc("/ufs/zhang/xmark/tkde/xmark2mb.xml", "test2.xml", 'test',10)
ERROR = !ERROR: interpret: no matching MIL operator to
'tj_play_doc_tape(BAT[oid,BAT], BAT[oid,oid], BAT[oid,int], BAT[oid,lng],
BAT[oid,str])'.
xquery>count(doc("test2.xml"))
more><>
1
xquery>pf:documents()
more><>
<document updatable="true" url="/ufs/zhang/xmark/tkde/xmark2mb.xml"
collection="test">test.xml</document>,
<document updatable="true" url="/ufs/zhang/xmark/tkde/xmark2mb.xml"
collection="test">test2.xml</document>
xquery>\q
----------------------------------------------------------------------
>Comment By: Jan Flokstra (jflokstra)
Date: 2009-09-07 10:54
Message:
There ineed seems to be a problem with dense heads here. It is only strange
it only happens with pftijah. The 'subject' function was created with the
function 'play_update_tape' in pf_support.mx as example. This function uses
[void,xxx] bats as parameter.
PROC play_update_tape(bat[void, bat] ws, bat[void, oid] item, bat[void,
int] kind, bat[void,lng] int_values, bat[void,str] str_values) : void
So the signature of the failing function in modules/pftijah/pftijah.mx is
PROC ALG_tj_docmgmt_tape(BAT[str,bat] tape,
BAT[void,BAT] ws,
BAT[void,str] location,
BAT[void,str] docnames,
BAT[void,str] colnames,
BAT[void,lng] percentages) : bit
I think you can change the voids in the headtypes to oid and then look
what happens. When this solves the problem without a lot of deep debugging
I haqve no problem with this.
----------------------------------------------------------------------
Comment By: Ying Zhang (yingying)
Date: 2009-09-04 15:25
Message:
Unfortunately, starting Mserver with -d10 doesn't make difference.
----------------------------------------------------------------------
Comment By: Stefan Manegold (stmane)
Date: 2009-09-04 14:49
Message:
could you please check and report whether the problem also occurs with
property checking enabled, i.e., when starting Mserver with -d10 ?
If this prevent the error, the problem might be a not correctly
set denseness property "somewhere" in some code that creats a BAT,
triggering a function resolution mismatch between an expected dense
BAT-head (or -tail)
and a provided arbitrary (not knownly dense) BAT-head (or -tail) ...
----------------------------------------------------------------------
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