client code for TableConfiguration has problems
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Key: ACCUMULO-240
URL: https://issues.apache.org/jira/browse/ACCUMULO-240
Project: Accumulo
Issue Type: Bug
Components: client
Affects Versions: 1.3.5
Reporter: Adam Fuchs
Assignee: Adam Fuchs
There are a number of problems with accessing TableConfiguration object from
client code, the first being that TableOperationImpl uses code that relies on a
hidden HDFSZooInstance in client configuration. If the client is not running
with access to the HDFS Accumulo directory, or if the HDFS setup on the client
differs from the Accumulo instance, then this call will fail:
{noformat}
Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by:
org.apache.accumulo.core.client.impl.HdfsZooInstance$AccumuloNotInitializedException:
Accumulo not initialized, there is no instance id at /accumulo/instance_id
at
org.apache.accumulo.core.client.impl.HdfsZooInstance._getInstanceID(HdfsZooInstance.java:136)
at
org.apache.accumulo.core.client.impl.HdfsZooInstance.getInstanceID(HdfsZooInstance.java:123)
at
org.apache.accumulo.core.conf.ZooConfiguration.getInstanceId(ZooConfiguration.java:65)
at
org.apache.accumulo.core.conf.ZooConfiguration.iterator(ZooConfiguration.java:132)
at
org.apache.accumulo.core.conf.TableConfiguration.iterator(TableConfiguration.java:129)
at
org.apache.accumulo.core.conf.ConfigSanityCheck.validate(ConfigSanityCheck.java:29)
at
org.apache.accumulo.core.conf.AccumuloConfiguration.getTableConfiguration(AccumuloConfiguration.java:150)
at
org.apache.accumulo.core.client.admin.TableOperationsImpl.getProperties(TableOperationsImpl.java:544)
at
org.apache.accumulo.core.client.admin.TableOperationsImpl.setLocalityGroups(TableOperationsImpl.java:583)
{noformat}
Another problem is that the ZooConfiguration object uses static instance
information, negating the possibility of using multiple instances in the same
JVM.
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