Even i faced the same problem while upgrading the HDP version. I just logged into Ranger UI as admin user, and in the user section i reset the same password for "admin" and "amb_ranger_admin" users and restarted ranger service. This worked for me. ... View more

@Jan De Luyck Set these below parameters in your “Custom spark-defaults” config setting in Ambari (or your spark-env.sh) to take care of these massive logs: spark.history.fs.cleaner.enabled=true spark.history.fs.cleaner.interval=1d spark.history.fs.cleaner.maxAge=5d ... View more

The problem is that it could not find necessary jar files. put the following statement in spark-env.sh SPARK_DIST_CLASSPATH="$SPARK_HOME/jars/*" ... View more

Ambari Log: 05 Sep 2017 05:29:38,359 INFO [ambari-client-thread-32] ConfigurationBuilder:127 - HdfsApi configured to connect to defaultFS='webhdfs://<<hostname>>:50070' 05 Sep 2017 05:29:38,363 ERROR [ambari-client-thread-32] HdfsUtil:153 - exception occurred while creating hdfsApi objcet : No FileSystem for scheme: webhdfs java.io.IOException: No FileSystem for scheme: webhdfs at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2644) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2651) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:92) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2687) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2669) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:371) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:170) at org.apache.ambari.view.utils.hdfs.HdfsApi$1.run(HdfsApi.java:74) at org.apache.ambari.view.utils.hdfs.HdfsApi$1.run(HdfsApi.java:72) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657) at org.apache.ambari.view.utils.hdfs.HdfsApi.execute(HdfsApi.java:401) at org.apache.ambari.view.utils.hdfs.HdfsApi.<init>(HdfsApi.java:72) at org.apache.ambari.view.utils.hdfs.HdfsUtil.getHdfsApi(HdfsUtil.java:150) at org.apache.ambari.view.utils.hdfs.HdfsUtil.connectToHDFSApi(HdfsUtil.java:122) at org.apache.ambari.view.commons.hdfs.HdfsService.getApi(HdfsService.java:98) at org.apache.ambari.view.commons.hdfs.UserService.trashdir(UserService.java:104) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205) ... View more

I tried, but didnt work. ... View more

@Jay SenSharma Thanks for you support..!! dfs.webhdfs.enabled is enabled to true ... View more

Hadoop version : Hadoop 2.7.3.2.5.3.0-37 Subversion git@github.com:hortonworks/hadoop.git -r 9828acfdec41a121f0121f556b09e2d112259e92 Compiled by jenkins on 2016-11-29T18:06Z Compiled with protoc 2.5.0 From source with checksum a6c8c64bfe734b01a46c7c480ebc7ff This command was run using /usr/hdp/2.5.3.0-37/hadoop/hadoop-common-2.7.3.2.5.3.0-37.jar Non Kerberized Non HA fs.defaultFS : hdfs://<<Hostname>>:8020 hadoop.proxyuser.hdfs.groups: * hadoop.proxyuser.hdfs.hosts: * hadoop.proxyuser.ambari-server.groups: * hadoop.proxyuser.ambari-server.hosts: * ... View more

@Kishore Kumar Did you check the connectivity from Ambari Server to Namenode service? ... View more