Unknowingly "dfs.encrypt.data.transfer" configured as true in datanode?? Please cross with check datanode configurations using the following way. http://<DN_IP>:<httpport>/conf<http://%3cDN_IP%3e:%3chttpport%3e/conf>
bq.1 what the client mean, it mean the application running on hdfs, how does it have a encryption? Yes, application (client) which is connected to DN while handshake From: ZongtianHou [mailto:zongtian...@icloud.com] Sent: 27 June 2018 14:54 To: user@hadoop.apache.org Subject: Re: Security problem extra Does anyone have some clue about it? I have updated the jdk, and still cannot solve the problem. Thx advance for any info!! On 27 Jun 2018, at 12:23 AM, ZongtianHou <zongtian...@icloud.com<mailto:zongtian...@icloud.com>> wrote: This is the log info: org.apache.hadoop.hdfs.server.datanode.DataNode: Failed to read expected encryption handshake from client at /127.0.0.1:53611. Perhaps the client is running an older version of Hadoop which does not support encryption I have two more questions here. 1 what the client mean, it mean the application running on hdfs, how does it have a encryption? 2 I have turn off the encryption about data transfer, rpc protection, http protection by setting properties of hadoop.rpc.protection, dfs.encrypt.data.transfer and dfs.http.policy as false, why there is still encryption? Any clue will be appreciated.
