integration hdfs ui with knox sso

[#1]

i following bellow steps to setup sso:

• Install Knox.
• Configure Ambari Authentication for LDAP/AD.
• Configure an LDAP/AD Identity Provider (IdP).
• Enable Knox SSO using the Ambari CLI.

after this step sso worked me for redirect to ambari ui.

in the next step when i add the bellow property to core-site.xml, restarting hdfs failed:

"hadoop.http.authentication.type": "org.apache.hadoop.security.authentication.server.JWTRedirectAuthenticationHandler”
"hadoop.http.authentication.public.key.pem": “$SSOPUBLICKEY"
"hadoop.http.authentication.authentication.provider.url": "$SSOPROVIDERURL"

when add this property (hadoop.http.authentication.type) to hdfs happening error.

hdfs log file:

2019-02-26 16:28:06,366 ERROR datanode.DataNode (DataNode.java:secureMain(2870)) - Exception in secureMain
java.io.IOException: Problem starting http server Caused by: 
        at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:1165)
        at org.apache.hadoop.hdfs.server.datanode.web.DatanodeHttpServer.<init>(DatanodeHttpServer.java:141)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.startInfoServer(DataNode.java:954)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:1404)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:497)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2769)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2677)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2719)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2863)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2887)
javax.servlet.ServletException: javax.servlet.ServletException: Keytab does not exist: /home/hdfs/hadoop.keytab  
        at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:1165)
        at org.apache.hadoop.hdfs.server.datanode.web.DatanodeHttpServer.<init>(DatanodeHttpServer.java:141)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.startInfoServer(DataNode.java:954)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:1404)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:497)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2769)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2677)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2719)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2863)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2887)

how can resolve this issue?

[#2 · Accepted solution]

I checked so many paper and documents. Not to mention at all that the public key should be added to the /home/hdfs/ path.

after adding public key to /home/hdfs/hadoop-keytab path the issue is resolved.

if this file dont exist we creating.

add public key to ----->/home/hdfs/hadoop-keytab

[#3]

Can you please send the steps to add public key to /home/hdfshdfs-keytab to my mail id : [email protected]