使用 Kerberos 身份驗證通過 SpringBoot 連接到 Kafka 時遇到問題。我正在使用具有以下詳細信息的自定義 Kafka 連接管理器 -          bootstrap-servers-sasl: node1:9094, node2:9094, node3:9094          protocol: SASL_SSL          mechanism: GSSAPI          kerberos:            service:              name: kfkusr          jaas:             config: "com.sun.security.auth.module.Krb5LoginModule required useKeyTab=true storeKey=true keyTab=\"#keytab-name#\" principal=\"abc/[email protected]\";"where#keytab-name#將在運行時被以下值替換為 -我的本地電腦 -C:/Users/MyPC/AppData/Local/Temp/abc.node2_d2254866264751402128.keytabPCF-/home/vcap/tmp/abc.node2_d2215947326380395062.keytab在本地應用程序運行良好，消息將發送到 Kafka。但是當在 PCF 上運行時失敗并出現以下異常 -2019-08-09T14:40:46.481-05:00 [APP/PROC/WEB/0] [OUT] WARN [9f-3868cbe47d81] org.apache.kafka.clients.NetworkClient o.a.k.c.NetworkClient.processDisconnection(NetworkClient.java:585) - ||||||||||||||Connection to node -1 terminated during authentication. This may indicate that authentication failed due to invalid credentials.......Failed to send; nested exception is org.apache.kafka.common.errors.TimeoutException: Failed to update metadata after 60000 ms.: org.springframework.kafka.core.KafkaProducerException: Failed to send; nested exception is org.apache.kafka.common.errors.TimeoutException: Failed to update metadata after 60000 ms......Exception thrown when sending a message with key='null' and payload='<my payload>' to topic <test_topic> :: org.apache.kafka.common.errors.TimeoutException: Failed to update metadata after 60000 ms.