Not that misery always loves company, but I had the previous Kylin version and was trying to use it with the Hortonworks 2.0 distro, and even though I could eventually get the service to start, the UI would never launch. The few people that responded to me told me to try things I already tried (like try a different URL or try using different browsers) and it never worked. As someone who's spent decades working in BI and OLAP (especially in SSAS, Essbase and TM1) I too was very interested in trying Kylin as a big data OLAP option and even took the Udemy course on it. Unfortunately, I just had to sit and watch as the course instructor performed cube-building tasks as I was never able to get the UI to launch.
If you get a real answer to this issue, I'd like to try again. I have the Hortonworks 3.0 distro now, and would like to try the new version of Kylin, if possible. If not, I'll take a look at Druid. Good luck. -Phil From: Rubio Piqueras, David [mailto:david.ru...@gft.com] Sent: Tuesday, April 14, 2020 11:58 AM To: dev@kylin.apache.org Subject: Kylin 3.0 - Need some help - Can't open the Kylin UI Hi guys, Just starting using Kylin too which looks so interesting. We downloaded your Kylin 3.0 image version: However, I can't open the Kylin UI anytime I try to open it. Checking the logs, this is what we are seeing: 2020-04-14 13:58:23,853 INFO [main-SendThread(localhost:2181)] zookeeper.ClientCnxn:1235 : Session establishment complete on server localhost/127.0.0.1:2181, sessionid = 0x17178f6fbd6000a, negotiated timeout = 40000 Exception in thread "main" java.lang.IllegalArgumentException: Failed to find metadata store by url: kylin_metadata@hbase at org.apache.kylin.common.persistence.ResourceStore.createResourceStore(Resour ceStore.java:101) at org.apache.kylin.common.persistence.ResourceStore.getStore(ResourceStore.jav a:113) at org.apache.kylin.rest.service.AclTableMigrationTool.checkIfNeedMigrate(AclTa bleMigrationTool.java:99) at org.apache.kylin.tool.AclTableMigrationCLI.main(AclTableMigrationCLI.java:43 ) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAcces sorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstruc torAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.kylin.common.persistence.ResourceStore.createResourceStore(Resour ceStore.java:94) ... 3 more Caused by: org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after attempts=1, exceptions: Tue Apr 14 13:58:24 UTC 2020, RpcRetryingCaller{globalStartTime=1586872703980, pause=100, retries=1}, java.net.ConnectException: Connection refused at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetrying Caller.java:147) at org.apache.hadoop.hbase.client.ResultBoundedCompletionService$QueueingFuture .run(ResultBoundedCompletionService.java:64) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:11 49) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:6 24) at java.lang.Thread.run(Thread.java:748) Caused by: java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:2 06) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:529) at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:493) at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.setupConnection(RpcClie ntImpl.java:424) at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.setupIOstreams(RpcClien tImpl.java:748) at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.writeRequest(RpcClientI mpl.java:920) at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.tracedWriteRequest(RpcC lientImpl.java:889) at org.apache.hadoop.hbase.ipc.RpcClientImpl.call(RpcClientImpl.java:1222) at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpc Client.java:213) at org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementati on.callBlockingMethod(AbstractRpcClient.java:287) at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$Blocki ngStub.scan(ClientProtos.java:32651) at org.apache.hadoop.hbase.client.ScannerCallable.openScanner(ScannerCallable.j ava:372) at org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:199 ) at org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:62) at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetry ingCaller.java:200) at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas$RetryingRPC.call( ScannerCallableWithReplicas.java:346) at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas$RetryingRPC.call( ScannerCallableWithReplicas.java:320) at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetrying Caller.java:126) ... 4 more 2020-04-14 13:58:24,142 INFO [close-hbase-conn] hbase.HBaseConnection:137 : Closing HBase connections... 2020-04-14 13:58:24,143 INFO [close-hbase-conn] client.ConnectionManager$HConnectionImplementation:1676 : Closing zookeeper sessionid=0x17178f6fbd6000a 2020-04-14 13:58:24,150 INFO [close-hbase-conn] zookeeper.ZooKeeper:684 : Session: 0x17178f6fbd6000a closed 2020-04-14 13:58:24,150 INFO [main-EventThread] zookeeper.ClientCnxn:512 : EventThread shut down ERROR: Unknown error. Please check full log I'm not sure, but my feeling is that there is an error with the HBase or Kafka or Zookeper default configuration that needs some changes from my end, but not sure what. Appreciate your help on this, Thanks. David Rubio _______________________________________ GFT IT Consulting, S.L.U. Avinguda Oest 48 46001 VALENCIA T +34963012486 david.ru...@gft.com <mailto:david.ru...@gft.com> <https://www.gft.com/es> www.gft.com/es https://blog.gft.com/es <https://www.twitter.com/gft_es> www.twitter.com/gft_es _______________________________________
