[Issue #252] additional debug messages

Author: gsmolk

src/datapagemap.c

@@ -13,6 +13,7 @@
 #include "postgres_fe.h"
 
 #include "datapagemap.h"
+#include "utils/logger.h"
 
 struct datapagemap_iterator
 {
@@ -61,6 +62,9 @@ datapagemap_add(datapagemap_t *map, BlockNumber blkno)
 		map->bitmapsize = newsize;
 	}
 
+	if (map->bitmapsize > 16384)
+		elog(WARNING, "Bitmapsize: %u", map->bitmapsize);
+
 	/* Set the bit */
 	map->bitmap[offset] |= (1 << bitno);
 }

src/parsexlog.c

@@ -1771,6 +1771,10 @@ extractPageInfo(XLogReaderState *record, XLogReaderData *reader_data,
 		if (forknum != MAIN_FORKNUM)
 			continue;
 
+		if (blkno > 131072)
+			elog(WARNING, "Detecting big blkno %u in record %X/%X",
+				blkno, (uint32) (record->ReadRecPtr >> 32), (uint32) (record->ReadRecPtr));
+
 		process_block_change(forknum, rnode, blkno);
 	}
 }