[ACCUMULO-2045] Accumulo fails to init when using viewfs://

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Assignee: Keith Turner
• Reporter: Keith Turner
• Created: 17/Dec/13 20:55
• Updated: 25/Apr/14 17:49
• Resolved: 17/Dec/13 21:01

Description

I was trying to use viewfs:// with hadoop 2.2.0 and two namenodes. I tried to run accumulo init and it failed.

I had the following in my hadoop core-site.xml

<configuration>
  <property>
    <name>fs.default.name</name>
    <value>viewfs:///</value>
  </property>
  <property>
    <name>fs.viewfs.mounttable.default.link./nn1</name>
    <value>hdfs://ip-10-1-3-10:9000</value>
  </property>
  <property>
    <name>fs.viewfs.mounttable.default.link./nn2</name>
    <value>hdfs://ip-10-1-3-11:9000</value>
  </property>
</configuration>

I had the following in my accumulo-site.xml

  <property>
    <name>instance.volumes</name>
    <value>viewfs://nn1,viewfs://nn2</value>
  </property>

I saw the following exception. At this point I am not sure if this is a config problem, accumulo bug, or hadoop bug.

$ ./bin/accumulo  init
2013-12-17 20:49:13,289 [init.Initialize] FATAL: java.io.IOException: viewfs://nn1/
java.io.IOException: viewfs://nn1/
	at org.apache.hadoop.fs.viewfs.InodeTree.<init>(InodeTree.java:338)
	at org.apache.hadoop.fs.viewfs.ViewFileSystem$1.<init>(ViewFileSystem.java:161)
	at org.apache.hadoop.fs.viewfs.ViewFileSystem.initialize(ViewFileSystem.java:161)
	at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2433)
	at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:88)
	at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2467)
	at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2449)
	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:367)
	at org.apache.hadoop.fs.Path.getFileSystem(Path.java:287)
	at org.apache.accumulo.server.fs.VolumeManagerImpl.get(VolumeManagerImpl.java:356)
	at org.apache.accumulo.server.init.Initialize.main(Initialize.java:556)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.accumulo.start.Main$1.run(Main.java:137)
	at java.lang.Thread.run(Thread.java:744)
Thread "init" died java.lang.reflect.InvocationTargetException
java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.accumulo.start.Main$1.run(Main.java:137)
	at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.RuntimeException: java.io.IOException: viewfs://nn1/
	at org.apache.accumulo.server.init.Initialize.main(Initialize.java:569)
	... 6 more
Caused by: java.io.IOException: viewfs://nn1/
	at org.apache.hadoop.fs.viewfs.InodeTree.<init>(InodeTree.java:338)
	at org.apache.hadoop.fs.viewfs.ViewFileSystem$1.<init>(ViewFileSystem.java:161)
	at org.apache.hadoop.fs.viewfs.ViewFileSystem.initialize(ViewFileSystem.java:161)
	at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2433)
	at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:88)
	at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2467)
	at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2449)
	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:367)
	at org.apache.hadoop.fs.Path.getFileSystem(Path.java:287)
	at org.apache.accumulo.server.fs.VolumeManagerImpl.get(VolumeManagerImpl.java:356)
	at org.apache.accumulo.server.init.Initialize.main(Initialize.java:556)
	... 6 more