[ACCUMULO-2044] Accumulo fails when instance.volumes and fs.default.name are disjoint

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.6.0
• Component/s: master, tserver
• Assignee: Keith Turner
• Reporter: Keith Turner
• Created: 17/Dec/13 20:46
• Updated: 13/Jan/14 21:00
• Resolved: 13/Jan/14 21:00

Description

In the hadoop core-site.xml I had the following.

  <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>

In accumulo-site.xml, I had the following.

  <property>
    <name>instance.volumes</name>
    <value>hdfs://ip-10-1-3-10:9000,hdfs://ip-10-1-3-11</value>
  </property>

When I tried to initialize accumulo I saw the following error. I think the problem is ZooUtil.getInstanceIDFromHdfs() just gets the default filesystem.

java.lang.IllegalArgumentException: Wrong FS: hdfs://ip-10-1-3-10:9000/accumulo/instance_id, expected: viewfs:/
	at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:642)
	at org.apache.hadoop.fs.viewfs.ViewFileSystem.getUriPath(ViewFileSystem.java:113)
	at org.apache.hadoop.fs.viewfs.ViewFileSystem.listStatus(ViewFileSystem.java:363)
	at org.apache.accumulo.core.zookeeper.ZooUtil.getInstanceIDFromHdfs(ZooUtil.java:53)
	at org.apache.accumulo.server.client.HdfsZooInstance._getInstanceID(HdfsZooInstance.java:125)
	at org.apache.accumulo.server.client.HdfsZooInstance.getInstanceID(HdfsZooInstance.java:119)
	at org.apache.accumulo.core.zookeeper.ZooUtil.getRoot(ZooUtil.java:37)
	at org.apache.accumulo.server.util.TablePropUtil.getTablePath(TablePropUtil.java:58)
	at org.apache.accumulo.server.util.TablePropUtil.setTableProperty(TablePropUtil.java:34)
	at org.apache.accumulo.server.init.Initialize.initMetadataConfig(Initialize.java:502)
	at org.apache.accumulo.server.init.Initialize.initMetadataConfig(Initialize.java:514)
	at org.apache.accumulo.server.init.Initialize.initFileSystem(Initialize.java:273)
	at org.apache.accumulo.server.init.Initialize.initialize(Initialize.java:222)
	at org.apache.accumulo.server.init.Initialize.doInit(Initialize.java:206)
	at org.apache.accumulo.server.init.Initialize.main(Initialize.java:565)
	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)
2013-12-17 20:30:12,370 [init.Initialize] FATAL: Failed to initialize filesystem
java.io.IOException: java.lang.IllegalArgumentException: Wrong FS: hdfs://ip-10-1-3-10:9000/accumulo/instance_id, expected: viewfs:/
	at org.apache.accumulo.server.init.Initialize.initMetadataConfig(Initialize.java:509)
	at org.apache.accumulo.server.init.Initialize.initMetadataConfig(Initialize.java:514)
	at org.apache.accumulo.server.init.Initialize.initFileSystem(Initialize.java:273)
	at org.apache.accumulo.server.init.Initialize.initialize(Initialize.java:222)
	at org.apache.accumulo.server.init.Initialize.doInit(Initialize.java:206)
	at org.apache.accumulo.server.init.Initialize.main(Initialize.java:565)
	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.IllegalArgumentException: Wrong FS: hdfs://ip-10-1-3-10:9000/accumulo/instance_id, expected: viewfs:/
	at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:642)
	at org.apache.hadoop.fs.viewfs.ViewFileSystem.getUriPath(ViewFileSystem.java:113)
	at org.apache.hadoop.fs.viewfs.ViewFileSystem.listStatus(ViewFileSystem.java:363)
	at org.apache.accumulo.core.zookeeper.ZooUtil.getInstanceIDFromHdfs(ZooUtil.java:53)
	at org.apache.accumulo.server.client.HdfsZooInstance._getInstanceID(HdfsZooInstance.java:125)
	at org.apache.accumulo.server.client.HdfsZooInstance.getInstanceID(HdfsZooInstance.java:119)
	at org.apache.accumulo.core.zookeeper.ZooUtil.getRoot(ZooUtil.java:37)
	at org.apache.accumulo.server.util.TablePropUtil.getTablePath(TablePropUtil.java:58)
	at org.apache.accumulo.server.util.TablePropUtil.setTableProperty(TablePropUtil.java:34)
	at org.apache.accumulo.server.init.Initialize.initMetadataConfig(Initialize.java:502)
	... 11 more

In testing I have done in the past with multiple namenode, the default namenode configured for hadoop was the same as the first namenode I configured for Accumulo. In this case the configs are disjoint, I may see other errors using this configuration.