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authorPeter Geoghegan <pg@bowt.ie>2021-03-16 13:11:17 -0700
committerPeter Geoghegan <pg@bowt.ie>2021-03-16 13:11:17 -0700
commit65445469d6de3670f3e027236613e093e119ec55 (patch)
treea3144c48239728cae3cef9674d3758e3cf5c9e4a
parent4b12ab18c9d0735d760bf7667b158707b06e5df8 (diff)
downloadpostgresql-65445469d6de3670f3e027236613e093e119ec55.tar.gz
postgresql-65445469d6de3670f3e027236613e093e119ec55.zip
amcheck: Reduce debug message verbosity.
Empty sibling pages can occasionally be much more common than any other event that we report on at elevel DEBUG1. Increase the elevel for relevant cases to DEBUG2 to avoid overwhelming the user with relatively insignificant details.
-rw-r--r--contrib/amcheck/verify_nbtree.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/contrib/amcheck/verify_nbtree.c b/contrib/amcheck/verify_nbtree.c
index c4ca6339182..b31906cbcfd 100644
--- a/contrib/amcheck/verify_nbtree.c
+++ b/contrib/amcheck/verify_nbtree.c
@@ -721,7 +721,7 @@ bt_check_level_from_leftmost(BtreeCheckState *state, BtreeLevel level)
else
ereport(DEBUG1,
(errcode(ERRCODE_NO_DATA),
- errmsg_internal("block %u of index \"%s\" ignored",
+ errmsg_internal("block %u of index \"%s\" concurrently deleted",
current, RelationGetRelationName(state->rel))));
goto nextpage;
}
@@ -1592,14 +1592,18 @@ bt_right_page_check_scankey(BtreeCheckState *state)
if (!P_IGNORE(opaque) || P_RIGHTMOST(opaque))
break;
- /* We landed on a deleted page, so step right to find a live page */
- targetnext = opaque->btpo_next;
- ereport(DEBUG1,
+ /*
+ * We landed on a deleted or half-dead sibling page. Step right until
+ * we locate a live sibling page.
+ */
+ ereport(DEBUG2,
(errcode(ERRCODE_NO_DATA),
- errmsg_internal("level %u leftmost page of index \"%s\" was found deleted or half dead",
- opaque->btpo_level, RelationGetRelationName(state->rel)),
+ errmsg_internal("level %u sibling page in block %u of index \"%s\" was found deleted or half dead",
+ opaque->btpo_level, targetnext, RelationGetRelationName(state->rel)),
errdetail_internal("Deleted page found when building scankey from right sibling.")));
+ targetnext = opaque->btpo_next;
+
/* Be slightly more pro-active in freeing this memory, just in case */
pfree(rightpage);
}
@@ -1722,7 +1726,7 @@ bt_right_page_check_scankey(BtreeCheckState *state)
* possible that it's an internal page with only a negative infinity
* item.
*/
- ereport(DEBUG1,
+ ereport(DEBUG2,
(errcode(ERRCODE_NO_DATA),
errmsg_internal("%s block %u of index \"%s\" has no first data item",
P_ISLEAF(opaque) ? "leaf" : "internal", targetnext,