Hi François,
yes, I did (for both Client and Server), but no luck: [2022-06-06 13:06:11,348] INFO Client will use DIGEST-MD5 as SASL mechanism. (org.apache.zookeeper.client.ZooKeeperSaslClient) [2022-06-06 13:06:11,348] ERROR Exception while trying to create SASL client. (org.apache.zookeeper.client.ZooKeeperSaslClient) java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at org.apache.zookeeper.util.SecurityUtils.createSaslClient(SecurityUtils.java:72) at org.apache.zookeeper.client.ZooKeeperSaslClient.createSaslClient(ZooKeeperSaslClient.java:251) at org.apache.zookeeper.client.ZooKeeperSaslClient.<init>(ZooKeeperSaslClient.java:139) at org.apache.zookeeper.ClientCnxn$SendThread.startConnect(ClientCnxn.java:1161) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1210) [2022-06-06 13:06:11,351] INFO Opening socket connection to server smsk02ap432u/10.78.197.18:2181. (org.apache.zookeeper.ClientCnxn) [2022-06-06 13:06:11,353] INFO SASL config status: Will attempt to SASL-authenticate using Login Context section 'Client' (org.apache.zookeeper.ClientCnxn) [2022-06-06 13:06:11,361] INFO Socket connection established, initiating session, client: /10.78.197.18:35924, server: smsk02ap432u/10.78.197.18:2181 (org.apache.zookeeper.ClientCnxn) [2022-06-06 13:06:11,405] INFO Session establishment complete on server smsk02ap432u/10.78.197.18:2181, session id = 0x100eca49b4d0000, negotiated timeout = 18000 (org.apache.zookeeper.ClientCnxn) [2022-06-06 13:06:11,409] ERROR SASL authentication with Zookeeper Quorum member failed. (org.apache.zookeeper.ClientCnxn) javax.security.sasl.SaslException: saslClient failed to initialize properly: it's null. at org.apache.zookeeper.client.ZooKeeperSaslClient.initialize(ZooKeeperSaslClient.java:399) at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1220) [2022-06-06 13:06:11,410] DEBUG [ZooKeeperClient Kafka server] Received event: WatchedEvent state:SyncConnected type:None path:null (kafka.zookeeper.ZooKeeperClient) [2022-06-06 13:06:11,411] DEBUG [ZooKeeperClient Kafka server] Received event: WatchedEvent state:null type:None path:null (kafka.zookeeper.ZooKeeperClient) [2022-06-06 13:06:11,411] INFO EventThread shut down for session: 0x100eca49b4d0000 (org.apache.zookeeper.ClientCnxn) [2022-06-06 13:06:11,412] INFO [ZooKeeperClient Kafka server] Closing. (kafka.zookeeper.ZooKeeperClient) [2022-06-06 13:06:11,413] DEBUG Shutting down task scheduler. (kafka.utils.KafkaScheduler) [2022-06-06 13:06:11,415] INFO [ZooKeeperClient Kafka server] Closed. (kafka.zookeeper.ZooKeeperClient) [2022-06-06 13:06:11,421] ERROR Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer) kafka.zookeeper.ZooKeeperClientAuthFailedException: Auth failed either before or while waiting for connection at kafka.zookeeper.ZooKeeperClient.waitUntilConnected(ZooKeeperClient.scala:260) at kafka.zookeeper.ZooKeeperClient.<init>(ZooKeeperClient.scala:108) at kafka.zk.KafkaZkClient$.apply(KafkaZkClient.scala:1981) at kafka.server.KafkaServer.initZkClient(KafkaServer.scala:491) at kafka.server.KafkaServer.startup(KafkaServer.scala:201) at kafka.Kafka$.main(Kafka.scala:109) at kafka.Kafka.main(Kafka.scala) Best regards, Evgeny Business Application Support VTB Capital Telephone.: +7 (495) 960 9999 (ext.264423) Mobile: +7 (916) 091-8939 -----Original Message----- From: fpapon <fpa...@apache.org> Sent: 6 июня 2022 г. 13:08 To: users@kafka.apache.org Subject: Re: SASL authentication between Kafka and Zookeeper Hi, Did you tried to use? org.apache.zookeeper.server.auth.DigestLoginModule instead of org.apache.kafka.common.security.plain.PlainLoginModule Regards, François On 06/06/2022 11:27, Ivanov, Evgeny wrote: > org.apache.kafka.common.security.plain.PlainLoginModule required -- -- François ________________________________ This email message (and any attachments) is confidential and may be privileged or otherwise protected from disclosure by applicable law. If you are not the intended recipient or have received this in error please notify the system manager, postmas...@vtbcapital.ru and remove this message and any attachments from your system. Any unauthorized dissemination, copying or other use of this message and/or any attachments is strictly prohibited and may constitute a breach of civil or criminal law. JSC VTB Capital may monitor email traffic data and also the content of email.