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Gateway Hub - Unhandled Error 500

If you encounter the web page error below:

Unhandled Error 500

  1. Check the apid.log under the /logs/apid/ directory.

  2. Look for the unhandled error message:

2020-11-12 11:51:20.390Z ERROR [DefaultExceptionHandler ] - Unhandled error
java.lang.ClassCastException: [B cannot be cast to java.lang.Comparable
  1. Review the API Daemon startup log.
2020-11-12 11:59:03.423Z WARN [FileUtils$ReleasableFileLock ] - Lock file [/app/kafka/hub-2.2.0-GA/tmp/apid-kafka-kvs/hub-keyValueStore-entitySnapshots/checkpoint/.lock] already exists, which indicates that this application exited abruptly
2020-11-12 11:59:03.423Z INFO [FileUtils$ReleasableFileLock ] - Acquired file lock on [/app/kafka/hub-2.2.0-GA/tmp/apid-kafka-kvs/hub-keyValueStore-entitySnapshots/checkpoint/.lock]
2020-11-12 11:59:03.429Z ERROR [KafkaBasedReadOnlyEntitySnapshotKeyValueStoreProvider] - Could not initialize Kafka-based key-value store using topic hub-keyValueStore-entitySnapshots: com.itrsgroup.hub.kafka.kvs.KafkaBasedKeyValueStoreInitializationException: Failed to read checkpoint data: java.io.EOFException
java.io.EOFException: null

This indicates that the application exited abruptly. The stack trace shows the apid reports failed to read the checkpoint data.

  1. Follow the steps below to fix the issue:
["Geneos"] ["FAQ"]

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