I know that NameNode and DataNode are running and I know I have a file system from this:
[jzeiberg@sr-linux2 conf]$ hadoop fs -ls hdfs://localhost:9000/ Found 4 items -rw-rw-rw- 1 hdfs supergroup 0 2018-12-05 10:57 hdfs://localhost:9000/MY_HADOOP_CLUSTER drwx------ - jzeiberg supergroup 0 2018-12-12 13:54 hdfs://localhost:9000/accumulo drwxr-xr-x - jzeiberg supergroup 0 2018-12-05 14:14 hdfs://localhost:9000/failures drwxr-xr-x - jzeiberg supergroup 0 2018-12-05 14:14 hdfs://localhost:9000/import But when I run either of these commands: accumulo-service master start or accumulo-cluster restart I get this error for the master service (the others start fine): 018-12-12 13:28:33,449 [conf.SiteConfiguration] INFO : Found Accumulo configuration on classpath at /home/jzeiberg/accumulo/accumulo-2.0.0-SNAPSHOT/conf/accumulo.properties 2018-12-12 13:28:33,643 [zookeeper.ZooUtil] ERROR: Problem reading instance id out of hdfs at hdfs://localhost:9000/accumulo/instance_id java.io.IOException: No FileSystem for scheme: hdfs at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2796) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2810) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:98) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2853) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2835) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:387) at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296) at org.apache.accumulo.core.volume.VolumeImpl.<init>(VolumeImpl.java:45) at org.apache.accumulo.core.volume.VolumeConfiguration.create(VolumeConfiguration.java:161) at org.apache.accumulo.core.volume.VolumeConfiguration.getVolume(VolumeConfiguration.java:40) at org.apache.accumulo.fate.zookeeper.ZooUtil.getInstanceIDFromHdfs(ZooUtil.java:591) at org.apache.accumulo.fate.zookeeper.ZooUtil.getInstanceIDFromHdfs(ZooUtil.java:585) at org.apache.accumulo.server.util.ZooZap.main(ZooZap.java:76) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.accumulo.start.Main.lambda$execMainClass$1(Main.java:166) at java.lang.Thread.run(Thread.java:748) 2018-12-12 13:28:33,644 [start.Main] ERROR: Thread 'org.apache.accumulo.server.util.ZooZap' died. java.lang.RuntimeException: Can't tell if Accumulo is initialized; can't read instance id at hdfs://localhost:9000/accumulo/instance_id at org.apache.accumulo.fate.zookeeper.ZooUtil.getInstanceIDFromHdfs(ZooUtil.java:613) at org.apache.accumulo.fate.zookeeper.ZooUtil.getInstanceIDFromHdfs(ZooUtil.java:585) at org.apache.accumulo.server.util.ZooZap.main(ZooZap.java:76) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.accumulo.start.Main.lambda$execMainClass$1(Main.java:166) at java.lang.Thread.run(Thread.java:748) Caused by: java.io.IOException: No FileSystem for scheme: hdfs at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2796) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2810) at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:98) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2853) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2835) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:387) at org.apache.hadoop.fs.Path.getFileSystem(Path.java:296) at org.apache.accumulo.core.volume.VolumeImpl.<init>(VolumeImpl.java:45) at org.apache.accumulo.core.volume.VolumeConfiguration.create(VolumeConfiguration.java:161) at org.apache.accumulo.core.volume.VolumeConfiguration.getVolume(VolumeConfiguration.java:40) at org.apache.accumulo.fate.zookeeper.ZooUtil.getInstanceIDFromHdfs(ZooUtil.java:591) -- Sent from: http://apache-accumulo.1065345.n5.nabble.com/Developers-f3.html