fe/src/main/java/org/apache/impala/catalog/local/InconsistentMetadataFetchException.java

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//
//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.impala.catalog.local;

/**
 * If this is thrown, it indicates that the catalog implementation in the Impalad
 * has identified that the metadata it read was not a proper snapshot of the source
 * metadata. In other words, the resulting plan may be incorrect and so the plan
 * in progress should be discarded and retried. It should be assumed that, if this
 * exception is thrown, the catalog has already taken appropriate steps to ensure that
 * a retry will not encounter the same inconsistency.
 *
 * Note that the above does not guarantee that a retry will succeed, only that it will
 * not encounter the _same_ conflict.
 */
public class InconsistentMetadataFetchException extends RuntimeException {
  private static final long serialVersionUID = 1L;

  public InconsistentMetadataFetchException(String msg) {
    super(msg);
  }
}