On 10/09/2021 11:53, Bernhard Krabina wrote:
Dear all,
I am trying to get the fuseki triple store to work for the first time. I have
it running via tomcat on localhost:8080/fuseki
However, if I type any dataset name, select in-memory (or any other option), I
just get the result
"Sorry, that didn't work because:
error"
Some kind of HTTP error response.
The error message is in the grey box below "Sorry, that didn't work
because:"
For example, if you try when using the IP address of the machine, and
not "localhost", it says "Forbidden." because of the default security
means only localhost can make admin requests.
To get more detail, you could try using curl or wget to make the request
copying the URL from the browser bar. You should be able to get he HTTP
response code thatway.
Without any further indication. Is there a way to make this more verbose? I
could not find any more detailed error message in any logs (but I might look in
the wrong place).
Try in the tomcat logs under /var/log/...
Here is my setup:
Debian 10.8, Tomcat 9.0.5.2
I deployed the Fuseki 4.1.0 .war-File which worked great.
/etc/fuseki is owned by the tomcat user.
I tried to follow these directions:
https://jena.apache.org/documentation/fuseki2/fuseki-webapp.html#fuseki-web-application
I don't quite understand the "configuring logging" section. My path is
/opt/tomcat/webapps/fuseki/log4j2.properties
The file is there. When the logging goes to the standard output, this would
mean that the error message should be displayed in the browser, right?
No - it goes to wherever stdout is for the tomcat server.
Also the next paragraph "Fuseki with Tomcat9 and systemd" is confusing:
I have a path /etc/systemd/system with a file tomcat.service
I edited this file and added
# Allow access to the Fuseki area
ReadWritePaths=/etc/fuseki/
StandardOutput=file:/opt/tomcat/logs/catalina.out
But this does not solve the problem. There is still nor warning or error
message ini Catalina.out
10-Sep-2021 10:46:11.229 INFO [main]
org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for
TLDs yet contained no TLDs. Enable debug logging for this logger for a complete
list of JARs that were scanned but no TLDs were found in them. Skipping
unneeded JARs during scanning can improve startup time and JSP compilation time.
[2021-09-10 10:46:12] Config INFO FUSEKI_HOME=unset
[2021-09-10 10:46:12] Config INFO FUSEKI_BASE=/etc/fuseki
[2021-09-10 10:46:12] Config INFO Shiro file: file:///etc/fuseki/shiro.ini
[2021-09-10 10:46:13] Config INFO Context path = /fuseki
[2021-09-10 10:46:13] Server INFO Configuration file:
/etc/fuseki/config.ttl
[2021-09-10 10:46:13] Server INFO System
[2021-09-10 10:46:13] Server INFO Memory: 910.5 MiB
[2021-09-10 10:46:13] Server INFO Java: 11.0.12
[2021-09-10 10:46:13] Server INFO OS: Linux 5.4.34-1-pve amd64
[2021-09-10 10:46:13] Server INFO PID: 5322
If nothing comes from Fuseki after this line, then it is likely an
access control problem.
10-Sep-2021 10:46:13.718 INFO [main]
org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application
archive [/opt/tomcat/webapps/fuseki.war] has finished in [4,605] ms
10-Sep-2021 10:46:13.719 INFO [main]
org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
application directory [/opt/tomcat/webapps/ROOT]
10-Sep-2021 10:46:13.737 INFO [main]
org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
application directory [/opt/tomcat/webapps/ROOT] has finished in [17] ms
10-Sep-2021 10:46:13.737 INFO [main]
org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
application directory [/opt/tomcat/webapps/docs]
10-Sep-2021 10:46:13.754 INFO [main]
org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
application directory [/opt/tomcat/webapps/docs] has finished in [17] ms
10-Sep-2021 10:46:13.754 INFO [main]
org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
application directory [/opt/tomcat/webapps/host-manager]
10-Sep-2021 10:46:13.784 INFO [main]
org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
application directory [/opt/tomcat/webapps/host-manager] has finished in [30] ms
10-Sep-2021 10:46:13.785 INFO [main]
org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
application directory [/opt/tomcat/webapps/examples]
10-Sep-2021 10:46:14.196 INFO [main]
org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
application directory [/opt/tomcat/webapps/examples] has finished in [411] ms
10-Sep-2021 10:46:14.196 INFO [main]
org.apache.catalina.startup.HostConfig.deployDirectory Deploying web
application directory [/opt/tomcat/webapps/manager]
10-Sep-2021 10:46:14.255 INFO [main]
org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web
application directory [/opt/tomcat/webapps/manager] has finished in [59] ms
10-Sep-2021 10:46:14.262 INFO [main] org.apache.coyote.AbstractProtocol.start Starting
ProtocolHandler ["http-nio-8080"]
10-Sep-2021 10:46:14.298 INFO [main] org.apache.catalina.startup.Catalina.start
Server startup in [9929] milliseconds
Any help is appreciated and sorry in case I am making any very basic mistakes.
Best regards,
Bernhard
