You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@jena.apache.org by "james michael dupont (JIRA)" <ji...@apache.org> on 2017/07/22 10:01:05 UTC
[jira] [Comment Edited] (JENA-1376) FUSEKI recursive stack overflow
crash on * query in optional where clause
[ https://issues.apache.org/jira/browse/JENA-1376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16097217#comment-16097217 ]
james michael dupont edited comment on JENA-1376 at 7/22/17 10:00 AM:
----------------------------------------------------------------------
Data set is here, 554627 lines from the http://*:8080/fuseki/gcc/data
https://gist.github.com/h4ck3rm1k3/2f61ceba01c5ace0631aecae2ea86b5a#file-gcc-data-fuseki-ttl-bz2
bunzip2 -c gcc-data-fuseki.ttl.bz2 | wc
554627 2219539 128217162
{noformat}PREFIX gcc: <https://h4ck3rm1k3.github.io/gogccintro/gcc/ontology/2017/05/20/gcc_compiler.owl#>
SELECT * { ?b_args2 gcc:chain ?b_args3. }
{noformat}
this returns 19,638 entries
{noformat}PREFIX gcc: <https://h4ck3rm1k3.github.io/gogccintro/gcc/ontology/2017/05/20/gcc_compiler.owl#>
SELECT * { ?b_args2 gcc:chain* ?b_args3. }
{noformat}
crashes
{noformat}PREFIX gcc: <https://h4ck3rm1k3.github.io/gogccintro/gcc/ontology/2017/05/20/gcc_compiler.owl#>
SELECT * { ?b_args2 gcc:chain+ ?b_args3. }
{noformat}
as well
was (Author: h4ck3rm1k3):
Data set is here, 554627 lines from the http://*:8080/fuseki/gcc/data
https://gist.github.com/h4ck3rm1k3/2f61ceba01c5ace0631aecae2ea86b5a#file-gcc-data-fuseki-ttl-bz2
bunzip2 -c gcc-data-fuseki.ttl.bz2 | wc
554627 2219539 128217162
{{PREFIX gcc: <https://h4ck3rm1k3.github.io/gogccintro/gcc/ontology/2017/05/20/gcc_compiler.owl#>
SELECT * { ?b_args2 gcc:chain ?b_args3. } }}
this returns 19,638 entries
{{PREFIX gcc: <https://h4ck3rm1k3.github.io/gogccintro/gcc/ontology/2017/05/20/gcc_compiler.owl#>
SELECT * { ?b_args2 gcc:chain* ?b_args3. } }}
crashes
{{PREFIX gcc: <https://h4ck3rm1k3.github.io/gogccintro/gcc/ontology/2017/05/20/gcc_compiler.owl#>
SELECT * { ?b_args2 gcc:chain+ ?b_args3. } }}
as well
> FUSEKI recursive stack overflow crash on * query in optional where clause
> -------------------------------------------------------------------------
>
> Key: JENA-1376
> URL: https://issues.apache.org/jira/browse/JENA-1376
> Project: Apache Jena
> Issue Type: Bug
> Reporter: james michael dupont
>
> changing
> {noformat}
> ?b_args2 gcc:chain ?b_args3.
> {noformat}
> to
> {noformat}
> ?b_args2 gcc:chain* ?b_args3.
> {noformat}
> causes a 500 error see http://paste.debian.net/977429/ for the full stack.
> at org.apache.jena.sparql.path.eval.PathEngineSPARQL.ALP_1(PathEngineSPARQL.java:133)
> {noformat}
> prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
> PREFIX gcc: <https://h4ck3rm1k3.github.io/gogccintro/gcc/ontology/2017/05/20/gcc_compiler.owl#>
> PREFIX owl: <http://www.w3.org/2002/07/owl#>
> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
> select distinct
> ?b
> ?b_name_string
> ?b_args ?b_args_type ?b_args_name_string ?b_args2_name_string ?b_args3_name_string
> where {
>
> optional {
> ?b_args2 gcc:chain* ?b_args3.
> ?b_args3_name gcc:strg ?b_args3_name_string.
> ?b_args3 gcc:name ?b_args3_name.
> ?b_args3 rdf:type gcc:parm_decl.
> }
>
> optional {
> ?b_args gcc:chain ?b_args2.
> ?b_args2_name gcc:strg ?b_args2_name_string.
> ?b_args2 gcc:name ?b_args2_name.
> ?b_args2 rdf:type gcc:parm_decl.
> }
>
> ?b_args_name gcc:strg ?b_args_name_string.
> ?b_args gcc:name ?b_args_name.
> ?b_args rdf:type gcc:parm_decl.
>
> ?b rdf:type gcc:function_decl.
> ?b gcc:scpe ?a.
> ?b gcc:name ?b_name.
> ?b gcc:args ?b_args.
> ?b_name gcc:strg ?b_name_string.
> ?a rdf:type gcc:translation_unit_decl.
>
> }
> limit 10
> {noformat}
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)