NationalSecurityAgency/ghidra · error · NoDatabaseException

NoDatabaseException: baseURL

Error message

NoDatabaseException: baseURL

What it means

During database initialization the code GETs 'vector/_settings'. If Elasticsearch responds with an error whose message contains 'no such index', the core 'vector' index of the BSim database does not exist on that URL, so NoDatabaseException(baseURL) is thrown: the named database was never created at that server.

Source

Thrown at Ghidra/Features/BSim/src/main/java/ghidra/features/bsim/query/elastic/ElasticDatabase.java:2394

	private void initializeElastic(Configuration config)
			throws ElasticException, NoDatabaseException {
		connection = new ElasticConnection(baseURL, repository);
		if (baseURL.startsWith("https")) {
			connectionType = ConnectionType.SSL_Password_Authentication;
		}
		config.info = new DatabaseInformation();
		readBasicInfo(config);

		vectorFactory = new Base64VectorFactory();
		config.weightfactory = new WeightFactory();
		config.idflookup = new IDFLookup();
		JsonObject res;
		try {
			res = connection.executeURIOnly(ElasticConnection.GET, "vector/_settings");
		}
		catch (ElasticException ex) {
			if (ex.getMessage().contains("no such index")) {
				throw new NoDatabaseException(baseURL);
			}
			throw ex;
		}
		JsonObject repo = (JsonObject) res.get(repository + "_vector");
		JsonObject settings = (JsonObject) repo.get("settings");
		JsonObject index = (JsonObject) settings.get("index");
		JsonObject analysis = (JsonObject) index.get("analysis");
		JsonObject tokenizer = (JsonObject) analysis.get("tokenizer");
		String tokenizerName = null;
		for (String key : tokenizer.keySet()) {
			if (key.startsWith("lsh_")) {
				tokenizerName = key;
				break;
			}
		}
		if (tokenizerName == null) {
			throw new ElasticException("Missing tokenizer configuration");
		}

View on GitHub (pinned to d5f144c24d)

Solutions

1. Run the BSim create-database workflow for that URL/name first.
2. Verify the URL/database name spelling and that it resolves to the intended ES host.
3. Point the client at the cluster that actually hosts the index.

Example fix

// before
FunctionDatabase db = FunctionDatabase.getInstance();
db.initialize(url); // throws NoDatabaseException
// after
if (!databaseExistsOnCluster(url)) {
    createDatabase(url, template); // first-time setup
}
FunctionDatabase db = FunctionDatabase.getInstance();
db.initialize(url);

// Check the index exists before opening.
boolean exists = esClient.indices().exists(b -> b.index(repo + "_vector")).value();
if (!exists) throw new NoDatabaseException(url);

boolean databaseInitialized = esClient.indices().exists(e -> e.index(repo + "_vector")).value();

try {
    db.initialize(url);
} catch (NoDatabaseException e) {
    // first run: create then retry
    createDatabase(url, template); db.initialize(url);
}

When it happens

Trigger: Opening/connecting to a BSim Elasticsearch URL whose repository+database was never created (the create-database step was not run, or was run against a different cluster).

Common situations: Wrong bsim:// URL or typo in the database name; server reset/rebuilt; connecting to the wrong ES cluster; create-database step skipped or failed silently.

Related errors

• {getType()}scripts cannot be used for context [{context.name
• Unknown script name {scriptSource}
• Document is missing "features"
• Document does not contain complete "features"
• PostgreSQL pg_ctl command not found: {}

AI-assisted analysis of NationalSecurityAgency/ghidra@d5f144c24d (2026-08-14). Data as JSON: /api/errors/1340332d1cc5bea6. Report an issue: GitHub.