{"record":{"id":"6994871591ccd6f6","repo":"apache/cassandra","slug":"snitch-definitions-at-s-do-not-define-a-location","errorCode":null,"errorMessage":"Snitch definitions at %s do not define a location for this node's broadcast address %s, nor does it provides a default","messagePattern":"Snitch definitions at (.+?) do not define a location for this node's broadcast address (.+?), nor does it provides a default","errorType":"validation","errorClass":"ConfigurationException","httpStatus":null,"severity":"error","filePath":"src/java/org/apache/cassandra/locator/TopologyFileLocationProvider.java","lineNumber":140,"sourceCode":"                    local = makeLocation(value);\n                    break;\n                }\n            }\n            catch (UnknownHostException e)\n            {\n                throw new ConfigurationException(\"Unknown host \" + hostString, e);\n            }\n\n        }\n\n        // This may be null, which is ok unless config doesn't contain the location of the local node\n        Location defaultLocation = makeLocation(properties.getProperty(DEFAULT_PROPERTY));\n\n        if (local == null)\n        {\n            if (defaultLocation == null)\n            {\n                throw new ConfigurationException(String.format(\"Snitch definitions at %s do not define a location for \" +\n                                                               \"this node's broadcast address %s, nor does it provides a default\",\n                                                               PROPERTIES_FILENAME, broadcastAddress));\n            }\n            else\n            {\n                logger.debug(\"Broadcast address {} was not present in snitch config, using default location {}. \" +\n                             \"This only matters on first boot, before registering with the cluster metadata service\",\n                             broadcastAddress, defaultLocation);\n                local = defaultLocation;\n            }\n        }\n\n        logger.debug(\"Loaded location {} for broadcast address {} from property file. \" +\n                     \"This only matters on first boot, before registering with the cluster metadata service\",\n                     local, broadcastAddress);\n\n        return local;\n    }","sourceCodeStart":122,"sourceCodeEnd":158,"githubUrl":"https://github.com/apache/cassandra/blob/88fd0f6a0eaed8943f05ac9e8f947882b8ddc8f1/src/java/org/apache/cassandra/locator/TopologyFileLocationProvider.java#L122-L158","documentation":"TopologyFileLocationProvider requires that the loaded topology properties file either contain an entry for this node's broadcast address or define a default location. If the local node's address is absent from the file and no default is configured, a ConfigurationException is thrown because the snitch cannot determine the node's datacenter/rack.","triggerScenarios":"Node starts with a broadcast_address (or broadcast_address set via config) that has no key in cassandra-topology.properties, and the file has no `default` property defined.","commonSituations":"Node's IP changed after adding it to the cluster; broadcast_address configured differently from the address listed in the properties file; new node added without updating the topology file; missing `default` line in the properties file.","solutions":["Add an entry for this node's broadcast address to cassandra-topology.properties mapping it to dc:rack","Add a `default=<dc>:<rack>` line to cassandra-topology.properties as a fallback","Verify the value of broadcast_address in cassandra.yaml matches an existing key in the properties file","Restart the node after fixing the properties file"],"exampleFix":"# before (cassandra-topology.properties missing the node)\n10.0.0.5=DC1:RAC1\n\n# after\n10.0.0.5=DC1:RAC1\n10.0.0.9=DC1:RAC2\ndefault=DC1:RAC1","handlingStrategy":"validation","validationCode":"Properties p = new Properties();\np.load(new FileInputStream(confDir + \"/cassandra-topology.properties\"));\nString broadcast = getBroadcastAddress().getHostAddress();\nif (!p.containsKey(broadcast) && !p.containsKey(\"default\"))\n    throw new IllegalArgumentException(\"Topology file missing entry for \" + broadcast + \" and no default\");","typeGuard":null,"tryCatchPattern":"try { startCassandra(); } catch (ConfigurationException e) { logger.error(\"Node location undefined in topology file: {}\", e.getMessage()); }","preventionTips":["Always define a `default` location line in cassandra-topology.properties","Keep broadcast_address consistent with the keys in the topology file","Update the topology file whenever adding nodes or changing IPs"],"tags":["configuration","snitch","topology"],"backgroundTag":"missing-config-value","analyzedSha":"88fd0f6a0eaed8943f05ac9e8f947882b8ddc8f1","analyzedAt":"2026-09-10T07:29:22.284Z","contentChangedAt":"2026-09-10T07:29:22.284Z","schemaVersion":2},"datasetVersion":"2026-09-14T16:17:12.679Z"}