public void waitUntilAllRegionsAssigned(final TableName tableName) throws IOException {
    waitUntilAllRegionsAssigned(tableName,
      this.conf.getLong("hbase.client.sync.wait.timeout.msec", 60000));
  }
Wait until all regions for a table in hbase:meta have a non-empty info:server, up to a
configuable timeout value (default is 60 seconds) This means all regions have been deployed,
master has been informed and updated hbase:meta with the regions deployed server.
@param tableName the table name
hbase-testing-util/src/main/java/org/apache/hadoop/hbase/HBaseTestingUtility.java