-
Type:
Bug
-
Resolution: Duplicate
-
Priority:
Major - P3
-
None
-
Affects Version/s: None
-
Component/s: None
-
Labels:None
-
8
-
Storage Engines 2019-10-21
An assertion is firing in test_las07 in the relevant history feature branch where we try to read a modify from the lookaside and are unable to find a standard update to apply it on top of.
There is an existing bug where the standard update is the on-disk version for that value and won't exist in lookaside (WT-5186) however this is NOT what is happening in this instance. The standard update that we're looking for is not in the update list OR the lookaside so it has probably been lost somehow as part of a bad eviction.
(lldb) frame select 3 frame #3: 0x00007ffff57e5c81 libwiredtiger-3.2.2.so`__wt_find_lookaside_upd(session=0x0000555555dcb448, cbt=0x000055555646a310, updp=0x00007fffffffc398, allow_prepare=false) at cache_las.c:1508 1506 WT_ASSERT(session, las_btree_id == S2BT(session)->id); 1507 WT_ERR(__wt_compare(session, NULL, las_key, key, &cmp)); -> 1508 WT_ASSERT(session, cmp == 0); 1509 WT_ASSERT(session, __wt_txn_visible(session, _las_txnid, _las_timestamp)); 1510 #endif 1511 WT_ERR(cursor->get_value( (lldb) frame variable cmp (int) cmp = -1
- duplicates
-
-
- Closed
-