Error while indexing a fresh opengrok instance for the first time.

[tarangchikhalia]

Describe the bug
I setup the development environment of OpenGrok in my workstation running Linux. Initially the server configuration is not set. As per the documentation - https://github.com/oracle/opengrok/wiki/Developer-intro,
I setup the IDEA and when running the
java -Djava.util.logging.config.file=logging.properties \ -cp 'distribution/target/dist/*' org.opengrok.indexer.index.Indexer \ -W /var/opengrok/etc/configuration.xml \ -s /var/opengrok/src \ -d /var/opengrok/data \ -c /usr/local/bin/ctags \ -H -S -P \ -U http://localhost:8080/source
I am getting below error:
SEVERE: cannot reach OpenGrok web application on http://localhost:8080/source: Internal Server Error http://localhost:8080/source is not reachable and the -U option was specified, exiting.

This is because the target webappURI is not pinging the webapp as it is not setup yet. The ping is returning the 500 error code which is failing the first time index.

OpenGrok: v1.12.12,
JDK: 11
OS: Ubuntu 22.10
Tomcat: 10.x

To Reproduce
Run the above index command on fresh instance

Expected behavior
The index should run without errors

[vladak]

The webapp will return the 500 error even when not configured, i.e. the configuration file is missing. Is there anything relevant in the Tomcat logs ?

[vladak]

It is a question whether the webapp without configuration file should return such error. Anyhow, run the indexer first to generate the config file, then deploy the webapp.

[tarangchikhalia]

Thanks @vladak. I will check the tomcat logs and I will give it a try.