Symptom
Server aborts on "Destroying Locked Logical Buffer" from slib/s_bufman.cxx:5318 while operating on a THG index.
sp_iqcheckdb() on THG index in verify mode does not show any corruption.
Function stack
-----
s_bufpartition::DestroyLogicalBuffer
s_blockmap::Destroy
s_blockmap::Destroy
hs_ohcMerge<s_btdiskblock, s_btitem, variable>::FinishMerge
hs_ohcMerge<s_btdiskblock, s_btitem, variable>::Execute
hs_ohc::DoProportionalMerge
hs_ohc::DoPushDown
hs_ohc::DoMerge
hs_subohcMergeUnit::Execute
dfo_THGMerge::FetchOpus
dfo_Scheduler::ExecWork
workAllocator::DoWork
hos_thread::Main
hos_lwtask::Start
-----
Additional logical buffer messages from iqmsg
----
| I I N I I H I I I I I I I I I I H I H I |
Flags: | s s e s s a s s n s s s s s s s a n e s |
| D D e V B s B C W S P U M O S F s A a P |
| i i d e u B l h a p r s a w t r A f d r |
| r r s r s u o e s e e e p n a e f f O e |
| t t D s y s c c h c f r e l e f i f A |
| i y e i y k S A i e L r e l i n T l |
| a a o W M u r a t o i l n x i |
| b l n a a m e l c c s i t n o |
s_buf(s) | l l e i p V a F h k t t y L c |
follow... | e o d t p a L e e P y A i a |
| c e e l B d d a r s t |
| r d i u g e t e |
| s d f e a d |
+----------+-----------------------------------------+------------+------------+------------+------------+------------+------------+-------------
| &s_buf | A D N V Y W B C I S P U M O X F Z R H L | LockRefCnt | DBSpaceID | BlkMapUID | Blk Num | _dskBlk | BlockMap | VersionRange
+----------+-----------------------------------------+------------+------------+------------+------------+------------+------------+-------------
0x7f1a88910ab0 | a D n V y w B c i s P U m x f z r h L | 1 | 16387 | 253446 | 2257 | 0x7f13e5f39000 | 0x7f1c5450f4e8 | 26682..26682
ERROR: Destroying Locked Logical Buffer
Buffer in main bufman
**************************************************
*** SAP IQ Abort:
*** From: slib/s_bufman.cxx:5318
*** PID: 26726
*** Message: Destroying Locked Logical Buffer
*** Thread: 139748444509952 (TID: 956)
**************************************************
Read more...
Environment
SAP IQ 16.0
Product
Keywords
Destroying Locked Logical Buffer; s_blockmap::Destroy; dfo_THGMerge; s_bufman.cxx 5318, CR809505, CR#809505, 809505 , KBA , BC-SYB-IQ , Sybase IQ , Bug Filed
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