On 22/12/15 18:22, Andy Seaborne wrote:
JENA-1104 suggests there is a ordering/timing issue and that it is not
Fuseki1/Fuseki2 expect that things happen in a different order.
OK.
Should I reopen that Jira? It was closed because the issue was not
reproducible. The behaviour I'm seeing has been pretty solid.
I'm not sure that a shared index across two different datasets will
work if updates are involved. Maybe someone else can help with that.
Thanks for the heads up. We don't need them to. We just need a second
query service we can send long running queries to.
What's fuseki:allowTimeoutOverride? Is this a local build with the
code for that uncommented out?
Not a local build no. I didn't come up with this, but it may be related to
https://issues.apache.org/jira/browse/JENA-218?focusedCommentId=13712368&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13712368
Thanks for looking at this.
Brian
Andy
On 21/12/15 14:53, Brian McBride wrote:
The fuseki configuration below sets up two services with a shared
dataset. The dataset has a lucene text index.
This configuration works on Fuseki 1.3.1. Fuseki 2.3.1 fails to start.
The log output is shown below. Looks like the lucene index may be
trying to grab a lock for the dataset twice.
If I change the second fuseki:dataset line to:
[[
fuseki:dataset <#ds> ;
]]
then it works on Fuseki 2.3.1 and Unexpectedly both services have
access to the text index, which doesn't seem right, thought suits me for
the moment as I need both services to have access to the index.
Is there some configuration change I need to make between Fuseki 1 and
Fuseki 2?
Brian
Fuseki 2.3.1 log output
[[
2015-12-21 14:42:20.940 WARN Config :: Fuseki v2:
Management functions are always on the same port as the server.
--mgtPort ignored.
2015-12-21 14:42:21.062 INFO Server :: Fuseki 2.3.1
2015-12-08T09:24:07+0000
2015-12-21 14:42:21.229 INFO Config ::
FUSEKI_HOME=/usr/share/fuseki
2015-12-21 14:42:21.230 INFO Config ::
FUSEKI_BASE=/etc/fuseki
2015-12-21 14:42:21.233 INFO Servlet :: Initializing Shiro
environment
2015-12-21 14:42:21.233 INFO EnvironmentLoader :: Starting Shiro
environment initialization.
2015-12-21 14:42:21.242 INFO Config :: Shiro file:
file:///etc/fuseki/shiro.ini
2015-12-21 14:42:21.415 INFO EnvironmentLoader :: Shiro environment
initialized in 181 ms.
2015-12-21 14:42:21.415 INFO Config :: Configuration
file: /etc/fuseki/config.ttl
2015-12-21 14:42:22.193 WARN AssemblerHelp :: ja:loadClass:
Migration to Jena3: Converting com.hp.hpl.jena.tdb.TDB to
org.apache.jena.tdb.TDB
2015-12-21 14:42:23.557 ERROR Server :: Exception in
initialization: caught:
org.apache.lucene.store.LockObtainFailedException: Lock obtain timed
out: NativeFSLock@/var/lib/fuseki/databases/ds-lucene/write.lock
2015-12-21 14:42:23.577 INFO Server :: Started 2015/12/21
14:42:23 UTC on port 3030
]]
Fuseki configuration.
[[
# Licensed under the terms of http://www.apache.org/licenses/LICENSE-2.0
@prefix : <#> .
@prefix fuseki: <http://jena.apache.org/fuseki#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix tdb: <http://jena.hpl.hp.com/2008/tdb#> .
@prefix ja: <http://jena.hpl.hp.com/2005/11/Assembler#> .
[] rdf:type fuseki:Server ;
fuseki:services (
<#service_ds>
<#service_ds_timeout_override>
) .
# TDB
[] ja:loadClass "com.hp.hpl.jena.tdb.TDB" .
tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset .
tdb:GraphTDB rdfs:subClassOf ja:Model .
<#service_ds> rdf:type fuseki:Service ;
rdfs:label "TDB Service (RW)" ;
fuseki:name "ds" ;
fuseki:serviceQuery "query" ;
fuseki:dataset <#ds-with-lucene> ;
.
<#service_ds_timeout_override>
rdfs:label "TDB Service Query with
timeout override" ;
fuseki:name "ds_to" ;
fuseki:allowTimeoutOverride true;
fuseki:serviceQuery "query" ;
fuseki:dataset <#ds-with-lucene> ;
.
<#ds> rdf:type tdb:DatasetTDB ;
tdb:location "/var/lib/fuseki/databases/ds" ;
.
@prefix text: <http://jena.apache.org/text#> .
[] ja:loadClass "org.apache.jena.query.text.TextQuery" .
text:TextDataset rdfs:subClassOf ja:RDFDataset .
text:TextIndexLucene rdfs:subClassOf text:TextIndex .
<#ds-with-lucene>
rdf:type text:TextDataset;
text:dataset <#ds> ;
text:index <#indexLucene> ;
.
<#indexLucene> a text:TextIndexLucene ;
text:directory <file:///var/lib/fuseki/databases/ds-lucene>;
text:entityMap <#entMap> ;
.
<#entMap> a text:EntityMap ;
text:entityField "uri" ;
text:defaultField "text" ;
text:map (
[
text:field "text" ;
text:predicate rdfs:label ;
]
) .
]]
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