private RegionStdOutSink getSink() {
      if (!(sink instanceof RegionStdOutSink)) {
        throw new RuntimeException("Can only write to Region sink");
      }
      return ((RegionStdOutSink) sink);
    }
This is a timeout per table. If read of each region in the table aggregated takes longer than
what is configured here, we log an ERROR rather than just an INFO.
hbase-server/src/main/java/org/apache/hadoop/hbase/tool/CanaryTool.java