dosubot[bot] commented on issue #2740: URL: https://github.com/apache/incubator-hugegraph/issues/2740#issuecomment-2690185775
<!-- Answer --> I found a similar closed issue related to HugeGraph not responding after a Cassandra restart, but no solution was found in the comments <sup>[[1]](https://github.com/apache/incubator-hugegraph/issues/639)</sup>. Regarding your issue, it seems that HugeGraph is not handling the reconnection to Cassandra after it has been restarted. This is a known challenge, as HugeGraph may not automatically reconnect to the backend once the connection is lost. Here are a few things you might consider checking or trying: 1. **Logs for Connection Errors**: Check the logs for any specific error messages related to the connection to Cassandra. Look for messages like "Failed to connect keyspace" or `NoHostAvailableException`, which indicate connection issues <sup>[[2]](https://github.com/apache/incubator-hugegraph-doc/blob/master/content/en/docs/quickstart/hugegraph-server.md)</sup>. 2. **Configuration for Reconnection**: Ensure that your HugeGraph configuration is set up to handle reconnections. While I couldn't find specific configurations in the repository, you might want to check if there are any settings related to connection retries or timeouts. 3. **Restart HugeGraph**: If HugeGraph does not automatically reconnect, you might need to restart the HugeGraph server after Cassandra is back online. This can help re-establish the connection. 4. **Graceful Handling of Restarts**: HugeGraph has mechanisms to handle backend restarts gracefully, such as the `PdConfigureListener`, which listens for restart messages and updates configurations <sup>[[3]](https://github.com/apache/incubator-hugegraph/blob/master/hugegraph-store/hg-store-node/src/main/java/org/apache/hugegraph/store/node/listener/PdConfigureListener.java)</sup>. Ensure that your setup is using the latest configurations. If these steps do not resolve the issue, you might need to look into more detailed logs or consider reaching out to other developers who have faced similar issues for potential workarounds. <!-- Dosu Comment Footer --> *To continue talking to [Dosu](https://dosu.dev), mention @dosu.* --- <sup>Help Dosu learn! Give it feedback: [Great Response](https://app.dosu.dev/response-feedback/aa67a55b-05a9-4b6b-a808-7ff55f95e836?feedback_type=great_response) | [Irrelevant Answer](https://app.dosu.dev/response-feedback/aa67a55b-05a9-4b6b-a808-7ff55f95e836?feedback_type=irrelevant_answer) | [Incorrect Sources](https://app.dosu.dev/response-feedback/aa67a55b-05a9-4b6b-a808-7ff55f95e836?feedback_type=incorrect_sources) | [Too Verbose](https://app.dosu.dev/response-feedback/aa67a55b-05a9-4b6b-a808-7ff55f95e836?feedback_type=too_verbose) | [Hallucination](https://app.dosu.dev/response-feedback/aa67a55b-05a9-4b6b-a808-7ff55f95e836?feedback_type=hallucination) | [Bug Report](https://app.dosu.dev/response-feedback/aa67a55b-05a9-4b6b-a808-7ff55f95e836?feedback_type=bug_report) | [Other](https://app.dosu.dev/response-feedback/aa67a55b-05a9-4b6b-a808-7ff55f95e836?feedback_type=other)</sup> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
