@Override
      void metaTask() throws Throwable {
        testGetRegion(connection, regions.get(0));
        LOG.info("Read " + regions.get(0).getEncodedName());
      }
Does {@link MetaTableAccessor#getRegion(Connection, byte[])} and a write against hbase:meta
while its hosted server is restarted to prove our retrying works.
hbase-server/src/test/java/org/apache/hadoop/hbase/TestMetaTableAccessor.java