I am experiencing a problem with communication between Dremio and MapRFS. I am unable to connect the two. When attempting to access data after connecting with Hive, I receive the following error: “java.io.IOException: No FileSystem for scheme: maprfs”.
@elmaataouin Can you please send the “describe extended <table_name>” output from Hive or Beeline? From the Dremio coordinator are you able to query the table via Hive or Beeline?
maintenant j’ai un autre problème lors de démarrage
Dremio is exiting. Failure while starting services.
java.lang.RuntimeException: java.io.IOException: Could not configure server because SASL configuration did not allow the ZooKeeper server to authenticate itself properly: javax.security.auth.login.LoginException: MapR user ticket not available! error = com.mapr.security.MutableInt@5ccaa4b9
at com.google.common.base.Throwables.propagate(Throwables.java:240)
at com.dremio.dac.daemon.ZkServer.init(ZkServer.java:111)
at com.dremio.dac.daemon.ZkServer.start(ZkServer.java:74)
at com.dremio.service.SingletonRegistry$AbstractServiceReference.start(SingletonRegistry.java:137)
at com.dremio.service.ServiceRegistry.start(ServiceRegistry.java:74)
at com.dremio.service.SingletonRegistry.start(SingletonRegistry.java:33)
at com.dremio.dac.daemon.DACDaemon.startPreServices(DACDaemon.java:178)
at com.dremio.dac.daemon.DACDaemon.init(DACDaemon.java:188)
at com.dremio.dac.daemon.DremioDaemon.main(DremioDaemon.java:102)
Caused by: java.io.IOException: Could not configure server because SASL configuration did not allow the ZooKeeper server to authenticate itself properly: javax.security.auth.login.LoginException: MapR user ticket not available! error = com.mapr.security.MutableInt@5ccaa4b9
at org.apache.zookeeper.server.ServerCnxnFactory.configureSaslLogin(ServerCnxnFactory.java:205)
at org.apache.zookeeper.server.NIOServerCnxnFactory.configure(NIOServerCnxnFactory.java:87)
at org.apache.zookeeper.server.ZooKeeperServerMain.runFromConfig(ZooKeeperServerMain.java:110)
at com.dremio.dac.daemon.ZkServer$ZkEmbeddedServer.run(ZkServer.java:142)
at java.base/java.lang.Thread.run(Thread.java:834)
@elmaataouin Is Dremio not able to start now? It seems like the MapR user ticket is not available?
https://knowledge.informatica.com/s/article/611977?language=en_US