I was setting a Nifi cluster in Kubernetes. I met some error: 2019-07-26 06:49:29,318 INFO [Process Cluster Protocol Request-1] o.a.n.c.c.node.NodeClusterCoordinator Status of 192.168.13.84:8080 changed from null to NodeConnectionStatus[nodeId=192.168.13.84:8080, state=CONNECTING, updateId=13] 2019-07-26 06:49:29,321 INFO [Process Cluster Protocol Request-1] o.a.n.c.p.impl.SocketProtocolListener Finished processing request 427a5aac-f506-4c0e-9ea0-093335bb369f (type=NODE_STATUS_CHANGE, length=1192 bytes) from 192-168-30-21.nifi-cluster.default.svc.cluster.local in 129 millis 2019-07-26 06:49:31,667 INFO [Process Cluster Protocol Request-2] o.a.n.c.c.node.NodeClusterCoordinator Status of 192.168.95.78:8080 changed from null to NodeConnectionStatus[nodeId=192.168.95.78:8080, state=CONNECTED, updateId=14] Can you help me? ... View more

I have a problem about Nifi Web UI. When I set nifi.web.http.host=luan-ht01, I could not access Nifi Web UI on browsers by public IP, example: http://localhost:8080/nifi/, http://107.113.193.160:8080/nifi. I only could access Nifi Web by host name, example: http://luan-ht01:8080/nifi/ . Do you have any solutions? Thank you very much. I 'm using Nifi 1.9.0. ... View more

Ambari: 2.7.3.0 HDP: 3.1.0 HDF: 3.2.0 I want to install Streaming Analytics Manager (SAM) on HDP. I used local repository and installed SAM success. But I could not run SAM on Ambari. Error: ERROR StatusLogger No log4j2 configuration file found. Using default configuration: logging only errors to the console. Set system property 'log4j2.debug' to show Log4j2 internal initialization logging. Exception in thread "main" java.lang.RuntimeException: java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at com.zaxxer.hikari.util.UtilityElf.createInstance(UtilityElf.java:93) at com.zaxxer.hikari.pool.PoolBase.initializeDataSource(PoolBase.java:319) at com.zaxxer.hikari.pool.PoolBase.<init>(PoolBase.java:114) at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:105) at com.zaxxer.hikari.HikariDataSource.<init>(HikariDataSource.java:72) Can you help me? Thank you very much. ... View more

Ambari; 2.7.3.0 HDP: 3.1.0 Ubuntu 16.04 Hi there, I want to use HttpFS. But when I run command: hdfs httpfs start But I faced this error: Exception in thread "main" java.io.IOException: Unable to initialize WebAppContext at org.apache.hadoop.http.HttpServer2.start(HttpServer2.java:1156) at org.apache.hadoop.fs.http.server.HttpFSServerWebServer.start(HttpFSServerWebServer.java:132) at org.apache.hadoop.fs.http.server.HttpFSServerWebServer.main(HttpFSServerWebServer.java:165) Caused by: java.lang.RuntimeException: Could not read HttpFS signature secret file: /usr/hdp/3.1.0.0-78/hadoop/conf/httpfs-signature.secret at org.apache.hadoop.fs.http.server.HttpFSAuthenticationFilter.getConfiguration(HttpFSAuthenticationFilter.java:95) Can you help me? Thank you. ... View more

Hello there, I 'm using HDP 3.1.0. I want to use Hue for Hive and Oozie. I found this guide for HDP 2.6.5: https://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.6.5/bk_command-line-installation/content/installing_hue.html Ca I install Hue in HDP 3.1.0? ... View more

Ambari version: 2.7.3.0 Ubuntu version: 16.04 When I used Ambari to deploy Hadoop cluster, Ambari created 2 file in apt source.list.d (ambari-hdp-1.list and hdp.list). So they could not run. ... View more