when i install cm agent using cloudera manager,got "Installation failed. Failed to copy installation files."   click the ditails: Failed to copy installation files. View /tmp/scm_prepare_node.SkukORUR Could not verify key bundle check the log /var/log/cloudera-scm-server# tail -f cloudera-scm-server.log 2019-02-27 21:26:32,543 INFO scm-web-227:com.cloudera.cmf.command.flow.CmdStep: Executing command work: Install on ip-172-22-1-148. 2019-02-27 21:26:32,543 INFO scm-web-227:com.cloudera.server.cmf.node.NodeConfiguratorService: Adding password-based configurator for ip-172-22-1-148 2019-02-27 21:26:32,544 INFO scm-web-227:com.cloudera.server.cmf.node.NodeConfiguratorService: Submitted configurator for ip-172-22-1-148 with id 69 2019-02-27 21:26:32,547 INFO NodeConfiguratorThread-68-0:com.cloudera.server.cmf.node.NodeConfiguratorProgress: ip-172-22-1-148: Transitioning from INIT (PT0.004S) to CONNECT 2019-02-27 21:26:32,548 INFO NodeConfiguratorThread-68-0:net.schmizz.sshj.transport.TransportImpl: Client identity string: SSH-2.0-SSHJ_0_14_0 2019-02-27 21:26:32,552 INFO scm-web-227:com.cloudera.enterprise.JavaMelodyFacade: Exiting HTTP Operation: Method:POST, Path:/add-hosts-wizard/install, Status:200 2019-02-27 21:26:32,553 INFO NodeConfiguratorThread-68-0:net.schmizz.sshj.transport.TransportImpl: Server identity string: SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu2.4 2019-02-27 21:26:32,560 INFO NodeConfiguratorThread-68-0:com.cloudera.server.cmf.node.NodeConfiguratorProgress: ip-172-22-1-148: Transitioning from CONNECT (PT0.013S) to AUTHENTICATE 2019-02-27 21:26:32,603 INFO NodeConfiguratorThread-68-0:com.cloudera.server.cmf.node.NodeConfiguratorProgress: ip-172-22-1-148: Transitioning from AUTHENTICATE (PT0.043S) to MAKE_TEMP_DIR 2019-02-27 21:26:32,681 INFO NodeConfiguratorThread-68-0:com.cloudera.server.cmf.node.NodeConfigurator: Executing mktemp -d /tmp/scm_prepare_node.XXXXXXXX on ip-172-22-1-148 2019-02-27 21:26:32,684 INFO NodeConfiguratorThread-68-0:com.cloudera.server.cmf.node.NodeConfiguratorProgress: ip-172-22-1-148: Transitioning from MAKE_TEMP_DIR (PT0.081S) to COPY_FILES 2019-02-27 21:26:32,854 INFO NodeConfiguratorThread-68-0:com.cloudera.server.cmf.node.NodeConfigurator: Using key bundle from URL: http://archive.cloudera.com/cm6/6.1.1/allkeys.asc 2019-02-27 21:26:32,904 WARN NodeConfiguratorThread-68-0:com.cloudera.server.cmf.node.NodeConfigurator: Unhandled exception java.lang.SecurityException: Could not verify key bundle at com.cloudera.server.cmf.node.NodeConfigurator.verifyGpgKeyBundle(NodeConfigurator.java:685) at com.cloudera.server.cmf.node.NodeConfigurator.copyFiles(NodeConfigurator.java:629) at com.cloudera.server.cmf.node.NodeConfigurator.configure(NodeConfigurator.java:992) at com.cloudera.server.cmf.node.NodeConfigurator.run(NodeConfigurator.java:1062) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.NullPointerException at com.cloudera.cmf.crypto.ClearSignedFileProcessor.getFileSignature(ClearSignedFileProcessor.java:197) at com.cloudera.server.cmf.node.NodeConfigurator.verifyGpgKeyBundle(NodeConfigurator.java:682) ... 8 more 2019-02-27 21:26:32,904 INFO NodeConfiguratorThread-68-0:com.cloudera.server.cmf.node.NodeConfiguratorProgress: ip-172-22-1-148: Setting COPY_FILES as failed and done state 2019-02-27 21:26:32,904 INFO NodeConfiguratorThread-68-0:net.schmizz.sshj.transport.TransportImpl: Disconnected - BY_APPLICATION 2019-02-27 21:26:33,048 INFO scm-web-236:com.cloudera.enterprise.JavaMelodyFacade: Entering HTTP Operation: Method:POST, Path:/express-wizard/updateHostsState 2019-02-27 21:26:33,051 INFO scm-web-236:com.cloudera.enterprise.JavaMelodyFacade: Exiting HTTP Operation: Method:POST, Path:/express-wizard/updateHostsState, Status:200 2019-02-27 21:26:37,561 ERROR CommandPusher:com.cloudera.cmf.command.flow.WorkOutputs: CMD id: 21 Failed to complete installation on host ip-172-22-1-148. 2019-02-27 21:26:37,562 ERROR CommandPusher:com.cloudera.cmf.model.DbCommand: Command 21(GlobalHostInstall) has completed. finalstate:FINISHED, success:false, msg:Failed to complete installation. 2019-02-27 21:26:38,179 INFO scm-web-229:com.cloudera.enterprise.JavaMelodyFacade: Entering HTTP Operation: Method:POST, Path:/add-hosts-wizard/installprogressdata.json 2019-02-27 21:26:38,181 INFO scm-web-229:com.cloudera.enterprise.JavaMelodyFacade: Exiting HTTP Operation: Method:POST, Path:/add-hosts-wizard/installprogressdata.json, Status:200 2019-02-27 21:26:38,292 INFO scm-web-237:com.cloudera.enterprise.JavaMelodyFacade: Entering HTTP Operation: Method:POST, Path:/express-wizard/updateHostsState 2019-02-27 21:26:38,293 INFO scm-web-237:com.cloudera.enterprise.JavaMelodyFacade: Exiting HTTP Operation: Method:POST, Path:/express-wizard/updateHostsState, Status:200   i tryed  wget https://archive.cloudera.com/cm6/6.1.1/ubuntu1604/apt/archive.key ;apt-key add archive.key did not work   ... 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I config  prostro on hue ：Hue Service → Configuration → Service-Wide → Advanced → Hue Service Advanced Configuration Snippet (Safety Valve) for hue_safety_valve.ini， when I add the following:   [notebook] [[interpreters]] [[[presto]]] name=Presto JDBC interface=jdbc options='{"url": "jdbc:presto://172.31.17.252:9080/", "driver": "com.facebook.presto.jdbc.PrestoDriver"}' thus the hue-->query-->editor only show  "prosto JDBC ", how to config presto without losting the hive and impala button on edior ????   I try to config all these  [notebook] ## Show the notebook menu or not # show_notebooks=true ## Flag to enable the selection of queries from files, saved queries into the editor or as snippet. # enable_external_statements=true ## Flag to enable the bulk submission of queries as a background task through Oozie. # enable_batch_execute=true ## Flag to turn on the SQL indexer. # enable_sql_indexer=false ## Flag to turn on the Presentation mode of the editor. # enable_presentation=true ## Flag to enable the SQL query builder of the table assist. # enable_query_builder=true ## Flag to enable the creation of a coordinator for the current SQL query. # enable_query_scheduling=false ## Main flag to override the automatic starting of the DBProxy server. # enable_dbproxy_server=true ## Classpath to be appended to the default DBProxy server classpath. # dbproxy_extra_classpath= ## Comma separated list of interpreters that should be shown on the wheel. This list takes precedence over the ## order in which the interpreter entries appear. Only the first 5 interpreters will appear on the wheel. # interpreters_shown_on_wheel= # One entry for each type of snippet. [[interpreters]] # Define the name and how to connect and execute the language. [[[hive]]] # The name of the snippet. name=Hive # The backend connection to use to communicate with the server. interface=hiveserver2 [[[impala]]] name=Impala interface=hiveserver2 # [[[sparksql]]] # name=SparkSql # interface=hiveserver2 [[[spark]]] name=Scala interface=livy [[[pyspark]]] name=PySpark interface=livy [[[r]]] name=R interface=livy [[[jar]]] name=Spark Submit Jar interface=livy-batch [[[py]]] name=Spark Submit Python interface=livy-batch [[[text]]] name=Text interface=text [[[markdown]]] name=Markdown interface=text [[[mysql]]] name = MySQL interface=rdbms [[[sqlite]]] name = SQLite interface=rdbms [[[postgresql]]] name = PostgreSQL interface=rdbms [[[oracle]]] name = Oracle interface=rdbms [[[solr]]] name = Solr SQL interface=solr ## Name of the collection handler # options='{"collection": "default"}' [[[pig]]] name=Pig interface=oozie [[[java]]] name=Java interface=oozie [[[spark2]]] name=Spark interface=oozie [[[mapreduce]]] name=MapReduce interface=oozie [[[sqoop1]]] name=Sqoop1 interface=oozie [[[distcp]]] name=Distcp interface=oozie [[[shell]]] name=Shell interface=oozie [[[presto]]] name=Presto JDBC interface=jdbc options='{"url": "jdbc:presto://172.31.17.252:9080/hive/tmp", "driver": "com.facebook.presto.jdbc.PrestoDriver","user":"", "password":""}'   thus The hive  impala return，but I  when click prestoJDBC on editor ,I got this in hue server log file : Error running autocomplete Traceback (most recent call last): File "/home/ubuntu/data_disk/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/desktop/libs/notebook/src/notebook/decorators.py", line 97, in decorator return func(*args, **kwargs) File "/home/ubuntu/data_disk/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/desktop/libs/notebook/src/notebook/api.py", line 572, in autocomplete autocomplete_data = get_api(request, snippet).autocomplete(snippet, database, table, column, nested) File "/home/ubuntu/data_disk/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/desktop/libs/notebook/src/notebook/connectors/base.py", line 269, in get_api return JdbcApi(request.user, interpreter=interpreter) File "/home/ubuntu/data_disk/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/desktop/libs/notebook/src/notebook/connectors/jdbc.py", line 66, in __init__ self.db = API_CACHE[self.cache_key] = Jdbc(self.options['driver'], self.options['url'], username, self.options['password']) File "/home/ubuntu/data_disk/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/desktop/libs/librdbms/src/librdbms/jdbc.py", line 67, in __init__ self.gateway = JavaGateway.launch_gateway(classpath=classpath) File "/home/ubuntu/data_disk/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/py4j-0.9-py2.7.egg/py4j/java_gateway.py", line 1537, in launch_gateway daemonize_redirect=daemonize_redirect) File "/home/ubuntu/data_disk/parcels/CDH-5.15.1-1.cdh5.15.1.p0.4/lib/hue/build/env/lib/python2.7/site-packages/py4j-0.9-py2.7.egg/py4j/java_gateway.py", line 178, in launch_gateway close_fds=True) File "/usr/lib/python2.7/subprocess.py", line 711, in __init__ errread, errwrite) File "/usr/lib/python2.7/subprocess.py", line 1343, in _execute_child raise child_exception OSError: [Errno 2] No such file or directory   what  file missing ??????         ... View more