???????? SQL Server ????? unreported i/O ???????? ?? ??? ????? ?? ??? ????? ???

???? ?????? ???? ??????
???? ID: 826433 - ?? ???????? ?? ?????? ??? ?? ?? ???? ???? ???? ??.
??? ?? ??????? ???? | ??? ?? ??????? ????

?? ????? ??

?????

??? ???????? ??????, ??????? ?? ????????? ?????? ???? ?? ????? ?????? ?? ?????? ??? ??????, ???? ????????? 605, 823, 3448 ???? ???????-??????? ?????? ????? ??? ???? ???? ?? ?? ????? ?????? ?? ???? ?????? ????? ??????? ?? ???? ??:
2003-07-24 16:43:04.57 spid63 Getpage: bstat 0x9, sstat = 0x800, ??? =
2003-07-24 16:43:04.57 spid63 pageno ??/???? ?????: objid ??/???? ?????:
2003-07-24 16:43:04.57 spid63 (1:7040966)/(1:7040966) 2093354622/2039782424
... 2003-07-24 16:43:04.57 spid63 IAM ????? ???? ?? ?? ????? ?? ???????? ?? ??? ?????? ??
2003-07-24 16:52:37.67 spid63 ??????: 605, Severity: 21, ??????: 1
2003-07-24 16:52:37.67 spid63 'pubs' ???????? '??????', ???????? '??????' ?? ??? ???? ???? ?? ??? ????? ???? ?? ??????? ??? ??????? ????? (1:7040966) fetch ???? ?? ??? ?????? ????
2003-07-24 16:52:40.99 spid63 ??????: 3448, Severity: 21, ??????: 1
2003-07-24 16:52:40.99 spid63 ??? ??????? ???? ??? ??????? (63361:16876:181), ID (0:159696956), ????????? ?? ??? ?? (1:7040977) ????? ??, 'pubs' (??????? ID 12) ???????? ??????? ?????: LSN (63192:958360:10) =, ?????? = 2? ??????? ???: OpCode = 2, ?????? 1
2003-07-09 14:31:35.92 spid66 ??????: 823, Severity: 24, ??????: 2
2003-07-09 14:31:35.92 spid66 i/O ?????? (??? ??? ID) ?? ????? 0x00000016774000 ????? 'h:\sql\MSSQL\data\tempdb.mdf' ??? ????? ?? ??? ?? ????? ?? ??? ????? ??

????????

?????? ??? ???????

?? ?????? ?? ?? ???? ?? ??? Microsoft SQL Server 2000 ?? ??? ?????? ?????? ??? ??????? ????? ???????? ??????? ?? ???, Microsoft ?????? ??? ??? ???? ????? ?? ??? ????? ???? ?????? ????? ????::
290211?????? SQL Server 2000 ?????? ??? ?? ??????? ???? ?? ??? ???? ????

??????? ?????

Microsoft ????????? ???????? ???????? introduces SQL ????? ?? ??? ????? ???? ???? ??? ??? ?? ???????? "?????" ??? ??? ?????? ?????? ??????? ?? ?????? ?????? ??? ??? ???? ?? ??? ??????? ??? ?? ???? ??? ???? ????? ?? ? ?? ??? ???????? ?????? ?? releated ????????? ??????, ???? ?? ????? ?? ???? ???? ?? ??? ?? ???? ???? ???

?? ????? ?? ???????? ??????? ??? ????? ????????? (?? ??? ???) ?? ????? ?????? ??? ???????? ???? ?? ??????? ?? ??? ?????? ?? ???, ??????? ????????? ??? (UTC) ??? ???????? ??.. ?? ?? ????? ??????? ????? ???, ?? ?? ??????? ??? ??? ?????? ???? ???? ??.. "UTC ?? ??????? ??? ??? ???? ????? ?? ???, ???????? ??? ??? ""?????? ?? ??? ???"" ??? """"??? ???????"" "??? ?? ????? ????..
   Date         Time   Version         Size             File name
   -------------------------------------------------------------------------
   31-May-2003  18:45  2000.80.818.0      78,400 bytes  Console.exe      
   25-Jun-2003  01:01  2000.80.818.0      33,340 bytes  Dbmslpcn.dll     
   25-Apr-2003  02:12                    786,432 bytes  Distmdl.ldf
   25-Apr-2003  02:12                  2,359,296 bytes  Distmdl.mdf
   30-Jan-2003  01:55                        180 bytes  Drop_repl_hotfix.sql
   23-Jun-2003  22:40  2000.80.837.0   1,557,052 bytes  Dtsui.dll        
   23-Jun-2003  22:40  2000.80.837.0     639,552 bytes  Dtswiz.dll       
   24-Apr-2003  02:51                    747,927 bytes  Instdist.sql
   03-May-2003  01:56                      1,581 bytes  Inst_repl_hotfix.sql
   08-Feb-2003  06:40  2000.80.765.0      90,692 bytes  Msgprox.dll      
   01-Apr-2003  02:07                      1,873 bytes  Odsole.sql
   05-Apr-2003  01:46  2000.80.800.0      62,024 bytes  Odsole70.dll     
   07-May-2003  20:41  2000.80.819.0      25,144 bytes  Opends60.dll     
   02-Apr-2003  21:48  2000.80.796.0      57,904 bytes  Osql.exe         
   02-Apr-2003  23:15  2000.80.797.0     279,104 bytes  Pfutil80.dll     
   22-May-2003  22:57                     19,195 bytes  Qfe469571.sql
   11-Jul-2003  17:04                  1,084,147 bytes  Replmerg.sql
   04-Apr-2003  21:53  2000.80.798.0     221,768 bytes  Replprov.dll     
   08-Feb-2003  06:40  2000.80.765.0     307,784 bytes  Replrec.dll      
   11-Jul-2003  16:56                  1,085,925 bytes  Replsys.sql
   01-Jun-2003  01:01  2000.80.818.0     492,096 bytes  Semobj.dll       
   31-May-2003  18:27  2000.80.818.0     172,032 bytes  Semobj.rll
   29-May-2003  00:29                    115,944 bytes  Sp3_serv_uni.sql
   01-Jun-2003  01:01  2000.80.818.0   4,215,360 bytes  Sqldmo.dll       
   07-Apr-2003  17:44                     25,172 bytes  Sqldumper.exe    
   19-Mar-2003  18:20  2000.80.789.0      28,672 bytes  Sqlevn70.rll
   02-Jul-2003  00:18  2000.80.834.0     180,736 bytes  Sqlmap70.dll     
   08-Feb-2003  06:40  2000.80.765.0      57,920 bytes  Sqlrepss.dll     
   01-Aug-2003  00:50  2000.80.847.0   7,594,065 bytes  Sqlservr.exe     
   25-Jul-2003  21:44  2000.80.845.0     590,396 bytes  Sqlsort.dll      
   08-Feb-2003  06:40  2000.80.765.0      45,644 bytes  Sqlvdi.dll       
   25-Jun-2003  01:01  2000.80.818.0      33,340 bytes  Ssmslpcn.dll     
   01-Jun-2003  01:01  2000.80.818.0      82,492 bytes  Ssnetlib.dll     
   01-Jun-2003  01:01  2000.80.818.0      25,148 bytes  Ssnmpn70.dll     
   01-Jun-2003  01:01  2000.80.818.0     158,240 bytes  Svrnetcn.dll     
   31-May-2003  18:59  2000.80.818.0      76,416 bytes  Svrnetcn.exe     
   30-Apr-2003  23:52  2000.80.816.0      45,132 bytes  Ums.dll          
   02-Jul-2003  00:19  2000.80.834.0      98,816 bytes  Xpweb70.dll
???:????? ??????????, ?? ?????? ???????? ?? ?????? ?? ?? ?? ??????? ??? ???????? ??????? ?? ?? ???? ???

Microsoft ?? ?????? ?? ?? ?? ?????? ?? ???? i/O loads, ?? ??????? ????????? ???????????? ??? ?? ???? ??? ???? ???? stale ?????? ??? ???? ??????? stale ?? ????? ????????? ????? ???/?? ?????? ?? ?????, ?? ????? ???????? ?? ??? ???? ????????? ???????? ?? ?????? ???? ?? ??????? SQLIOStress ?????? ?? ????

??????

Microsoft ?? ?????? ?? ?? ?? ?? ?? Microsoft ???????? ??? ?? ?????? ?? ?? "???? ???? ???? ???" ?????? ???????? ???..

?? ?????? ?? ???? ???? Microsoft SQL Server 2000 ?????? ??? 4 ??? ??? ???? ??? ???

???? ???????

??? ??? ?? ?? "?????" ??? ??? ???????? ?????? ????? ??????? ?? ?? ?? ????? ???? ???? ????? ?????? ?? ?????? ?? explained ?? ???? ?? ???? ??, ?? SQL ?????, ???????? ??????, ???????, ?? ????????? ?? ??? ??? ????? ???????? ?? ??????? ????? ???????? SQL Server ????? ????? ?? ?? ????? ??? ??????? ???????? ?? ????? i/O ?? ??? ????? ??? ??? ???? ?? ???? ???????? ????? ?? ????? ????????? ?? ???? ??? ??????? ?????? ???? ?? ?????? ????:
  • ?? ?????: ?? ??? ??? ???? ?? ???WriteFileAPI, ????? ???????? ??????, ???????, ?? ?????? ???????? ???? ??? ??? ?? ????? ???? ????? ?????? ?? ??? ?? SQL Server ???? ??? ?? ?? ????? ???
  • ?????? ?????: ?? ??? ??? ???? ?? ???ReadFileAPI, ????? ???????? ??????, ???????, ?? ?????? ???????? ??? ???? ?? ???? ?????? ??????? ???? ???
?????? ?? ???, Microsoft ?? ?????? ?? ???????? ?? ???? ???WriteFileAPI ??? ??? ?? ??? ??? ???? ??, ????? ??? ???? ??? ?? ?? ????? ??? ??? ?????? ????, ???? ?? ?? ??? ????????? ??? ??? ?? ????? ??? ???????? ???? ???? ???? ??? ???-???, ?? ?????? ?? ???? ??? ??? ??? ??? ?????? ???? ??? ???? ?????? ??? ???? ???? ?????? ??? ??? ???? ???? ?? ????? ????? ?? ????

?? ?????? ?? ???????? ?? ??? ???????? ????? ?? ????? ???? ?? ??? SQL Server ????? ???? 818 ????? ??? ?? ????????? ???????? ?? ??? ??? ????? ???? 818 ????????? ?? ???? ???-T818, SQL ?????, ?? ?? ??? ??? ???????? ?? ??? ?? ??? ????? ???:
DBCC TRACEON(818, -1)

????? ???? 818 ???????? ????? ??? 2,048 ??? ???? ????? ???? ?? workfile I/os ????, SQL Server ??? ??? ???????? ?????? ?? ?? ???????? ?? ??? ????? ???-?????? ???? ???? ?? ????? ???? ??? ?? ???? ?????? 605, 823 ?? 3448 ????????? ???????, ??? ???? ???? ??? ??????? ?????? (LSN) ??? ???? ???? ???? ???? ?? ??? ????? ??? ??? LSN ??? ???????? ?? ????? ??????? ?? ?? ?? ?? ???? ???????? ?? ????? ????????? ?? ?????? ??, ?? ?? ??? ?????? ????? SQL ????? ?????? ??? ??? ??? ??? ??????? SQL Server ???? ???????? checkpoints ?? ??? ??? ?? lazy writes ?? ??? ??? ??? ??? lazy ???? ?? ?????????? i/O ?? ????? ???? ?? ?? ????????? ????? ??? ???? ???? ?? ??????????? lightweight, ???? ???????? ?? negligible ?????? ?? ???????? ?? ??? ???

????? ????? ?????? ?? ?? SQL ????? ??????? ???? ??? ?? ??????WriteFileAPI ??? ??ReadFileAPI ???? ???????, LSN ???????? ??, ?? ??? ???? ?? ???:
SQL ????? ??? unreported OS/????????? ???? ????? ?? ?????? ?? ??????? 12 ????? (1:75007) ?? ????? ?? ??? ??
LSN ?? (63361:16876:181), LSN ???????? (63361:16876:500)
????????? ???????? ?? ?????? ???? ?? ?????? ?? ?? ???? ?? ??? ?????? ??????? ?? ????? ???? ?? ????? ????
?? ????? ??, ?? ?? ??? ??? ?? ????? ?? ???? ?????? ??????? ??? ???, ?? ???? ???? ??? ?????? ?? ???? ??? ?? ????? ????? ?? ???? ???? ?? ?????? ??? (??? ???? ????? ?? ??? ?????? ????), SQL ????? ???????? ??????, ??????? ?? ????????? ???? ??? ??? ????? ?????? ??????? ???? ???

??? ?????? 3448 ?? ?????? ???? ??? ?????? ???? ?? ??? ??? ????????? ?????? 605 ?? ?????? 823 ?? ?? ?? ???? ??, ???????? ?? ???????? ??? ?? SQL ????? ?? ??? ??????? ?? ??? ???? ?? ?? ????? ?? ??????? ?? ???????????? ???? ?? ?????? ???? ??? ?????? 605 ?? ?????? 823 experiences ???? ????? ?? ???? ??? ????? ???? ???? ??, ?? ????? id SQL Server ??? ??? ???????? ?? ??? ??? (???? redo ???) ????????????? ?? ????? ??? ??? id ???? ??, ?? ????? ????? ????? ??? ?? ???? ??? ???????? SQL ????? ?????? ??? ??? ??? ?? ???? ?? ?????? ?????????? ?? ??????? ???? ????? ?? ?????? ????? ???????? ?? ??? ???? ???? ??? ??? ???? ???

?? ????? ?? ??????? ??????? ?????? ????? ???????? ??? ??? ???? ???:
  • ??? ??????? ??????? ??? ??? ?? ???? ??? ????, ??? ?? ???? ??? ?? ??? ???? ?? ???? ????????????? ?? ????? ???? ??? ???
  • ?? ?? ???? ???????? ????? ?? ?????DBCC DROPCLEANBUFFERS??? (?? ??????? ?? ??? ??? ??????? ????? ??????), ?? ???? ??? ?????DBCC CHECKDB??????? ?? ???????? ???, ??? ?? ??? ????? ???? ???? ???
??? ?????? ?????? ?? ????? ??????? ?? ????? ???????? ??? ????? ??? ?? ?? ?? ??? ??? ????? ?? ?? ????? ???? ?? ??? ??? ?? ????? ???????? ??? ?????????? ???????? ??? invalidation ?? ?? ??? reads ?? ?? ?? ????? ?????? ??? ??? ?? ?????? ?? ?? ??? ?? ????? ?? ???? ???? ?? ?? ??? ?? ???? ?? ?????? ??????? ?????? ?????????? ?? ??? ??????? flush ?? ??? ?? ????? ???? ??????? ???? ???

???-???, ?????? ???? ?? ???? ?? ??? ????????? ??? ?? ??? ???????? ?? ?? ??????? ??????? ?? ??? ??? ?????? ?? ???? ??? ??? ?????? ??? ????? ?????????? ?? ????????? ??????????, ??? ??, ???? ?????????? ?? ??????? ???? ?? ??? ????? ??? ??????? ??????? ?? ??? ???????? ????

Microsoft ?????? 605 ?? ?????? 823 ?? ??? ?????? ?? ???? ???? ????? ?? ?? ?????? ??? ?? ????? ???? ??????? ?? ???? ??? ?? ????????? ??? ?? ???? ??? In some instances, a page appears to be updated two times but with the same LSN value. This behavior may occur if theObject ID??Page ID??? (????? ?????? ???? ?? ??? ???????? ???? ?? ??) ???, ?? ??? ???????? ??? ?? ????? ?? ?? ???? ???? ?? ??? ????? ??? ???? ????? ???? ?? ?? ?????? ??? ???? ??, ?? ???? ??? ?? ????? ???????? ???? ??? SQL ????? ????????? ??? ?? ????? ?????? ???? ??? ?? ?? ??? ???? LSN ??? ?? ??? ?????? ??? ?? ?????? ???? ?????? ?? ???? ??? ????????? ??? ???? ?? ???????????? ???? ?? ?????? ???? ??? ?? ???? ?????? ????????, ???? ?? ????? ????? ???????? ?? ??? ???? ???????????? ?? ???? ????? ?????? ????? illustrates ?? ?????? ?? ?? ?????? ??:
??????: 3456, Severity: 21, ??????: 1 ??? ???? ??????? (276666:1664:19), ??? ??????? ID (0:825853240), ????????? ?? ??? ?? (1:1787100) ????? ??, '??????' (7) ???????? ?????: LSN (276658:4501:9) =, ?????? = 1? ???: OpCode = 4, 2, ?????? PrevPageLSN: (275565:3959:31)

??? ???????? ?? ????? ???? ??? ?? ???? ????? ??? ??? ?? ???:
  • LSN Sequence		Action
    1			Checkpoint
    2			Begin Transaction
    3			Table created or truncated
    4			Inserts (Pages allocated)
    5			Newly allocated page written to disk by Lazy Writer
    6			Select from table ? Scans IAM chain, newly allocated page read back from disk (LRU | HASHED = 0x9 in getpage message), encounters Error 605 - Invalid Object ID
    7			Rollback of transaction initiated
    
  • LSN Sequence		Action
    1			Checkpoint
    2			Begin Transaction
    3			Page Modification
    4			Page written to disk by Lazy Writer
    5			Page read in for another modification (stale image returned)
    6			Page Modified for a second time but because of stale image does not see first modification 
    7			Rollback ? Fails ? Transaction Log shows two different log records with the same PREV LSN for the page
    
SQL ????? '????? ????' ???????? i/O ??????????, ??????? ???? ?? ?? ????????? ????tempdb???????:. ?? i/O ???????? ???? i/O ???????? ???? ?? ??? ???? ???; ???????, ?? ???? ??? ???? ?? ?? ???? ??? ??????? ???? ???????? ?? ?? ???? ?? ?????? ???? ?? ??? ??? ??????????? ????? ?? ????? ???? ?? ??? ??? ?? i/O ???????? ???? ?? ??? ?? ???? ??? explained ???????? ????? ???? ???? ?????

Microsoft ?? ??? ???? ?? ?? ????? ????? ???? ?? ??? ??? ???? ?? ???????? ?????? ???? ?? ??? ?? ??? ???? ????? ????????: ??:
2003-04-01 20:13:31.38 spid122 SQL Server ??????: ????: <p:\sql\ntdbms\storeng\drs\include\record.inl>, ?????? 1447 ???? ?????? = = ' m_SizeRec > 0 && m_SizeRec <= maxdatarow'.=""></=></p:\sql\ntdbms\storeng\drs\include\record.inl>

2003-03-29 09:51:41.12 spid57 ????? ?? ?????? (??? ??? ID)? pageid (0x1:0x13e9) =, dbid = 2, ????? e:\program files\Microsoft = SQL Server\mssql\data\tempdb.mdf. ??????????? ?? ??? ???

2003-03-29 09:51:41.13 spid57 ??????: 823, Severity: 24, ??????: 7
????? 'e:\program files\Microsoft SQL Server\mssql\data\tempdb.mdf' ??? ????? 0x000000027d2000 ?? ??? ?? ????? 2003-03-29 09:51:41.13 spid57 i/O ?????? (??? ??? ID) ?? ??? ?????

* 00931097 Module(sqlservr+00531097) (utassert_fail + 000002E3)
* 005B1DA8 Module(sqlservr+001B1DA8) (RecBase::Resize + 00000091)
* 00407EE7 Module(sqlservr+00007EE7) (RecBase::LocateColumn + 00000012)
* 00852520 Module(sqlservr+00452520) (mergerow + 000000A4)
* 008522B3 Module(sqlservr+004522B3) (merge_getnext + 00000285)
* 0085207D Module(sqlservr+0045207D) (mergenext + 0000000D)
* 004FC5FB Module(sqlservr+000FC5FB) (getsorted + 00000021)

?? ???? ?? ?? ????? ?????? ? ?? ?? ?? ???????? ???????? ?? ??????? ??tempdb???-??? ??????? ?????? ?? ??????? ?????? ????? ?? ??? ????? ???? ?? ???????

??????? ?? stale ????? ?? ??? ???? ??????? ??? ??? ???? ??, ?? ???? ??????? ??????? ??? ?? ???? ?????? ?? ???? ??? ??? ???? ?? ??? ??? ????? ?? ???? ??, ????? ??? ???? ?? ???? ??????? ?????? ?? ??? ??????????? ??????, ???? ?????? 644 ?? ?????? 625 ?? ??? ??? ????? ???? ??:
RID ?? ??? ?? ?????? 644 ??????????? ????????? ???? ???? Severity ???? 21 ????? ??? ??? ' %. * hs '??? ??????????? ????? % S_PGID, ??????????? ID % d, ???????' %. * ls'?
?????? 625 Severity ???? 21 ????? ??? ???? ?????? ?? ??????? RID ?????? S_PGID ????? % ??????? slotid (% d) ????? ???? ???
??? ???????? ?? ??? ?? ?????? ?????? ?????????? ???? ?? ??? ????????? ?? ???????? ??????? ??? ??? ?? ???? ?? ???? ?? ?????? ???? ??? Perhaps ????? ??????????? ????? ???????? ?? ??? ???? ???? ?? ??? ????? supposed ???? ??? ??? ??? ???? ????? ??? ?? ?? ?? ??, ?? ???? ?? ?? ???

????????????? ?? ???? ?? ??????? ????? ??, ?? ??? ?? ?????? ??????? ?? ????? ???? ?? ??? ???? ?????? ?? ??????? ???, ?? Microsoft ??????? ?????? ???? ?? ?? SQL ????? ?? ?????? SQL Server i/O Stress Simulator ?? ??? ?????? ?????? ??????? ??? Microsoft ?????? ?? encourages ?? ???? ???????? ?????? ?? ???? ?????? ??????????? ?? ?? ??????? ??????? ???? ????

???? ??????? ?? ???, Microsoft ?????? ??? ??? ???? ????? ?? ??? ????? ???? ?????? ????? ????::
231619TO HOW: ??? ????? ???????? ???? SQL Server Stress ?? ??? SQLIOStress ?????? ?? ????? ????
SQL ????? ?? ??? ?????? ?????? ?? ?????? ???? ?? ??? ? ????? ?????? ?? ????? ???? ?? ??? ????????? ? ?? ??? ??? Microsoft SQL Server Always-on ??????? ?????? ??????? ????????? ?? ???? ??? ??? FoSQL Server ??????? ????? ?? ????? ?? ?????? ?????????? ?? ???? ??? ???? ??????? ?? ??? Microsoft ???????? ??? ???? ????? ?? ??? ????? ???? ?????? ?? ????? ????:
967576Microsoft SQL Server ??????? ????? ?????/?????? ??????????

???

???? ID: 826433 - ????? ???????: 05 ?????? 2010 - ??????: 2.0
???? ???? ???? ??:
  • Microsoft SQL Server 2008 Developer
  • Microsoft SQL Server 2008 Enterprise
  • Microsoft SQL Server 2008 Express
  • Microsoft SQL Server 2008 Standard
  • Microsoft SQL Server 2005 Developer Edition
  • Microsoft SQL Server 2005 Enterprise Edition
  • Microsoft SQL Server 2005 Express Edition
  • Microsoft SQL Server 2005 Standard Edition
  • Microsoft SQL Server 2000 Service Pack 3
??????: 
kbhotfixserver kbqfe kbbug kbhardware kbfilter kbdriver kbdatabase kbsysadmin kbinfo kbmt KB826433 KbMthi
???? ?????? ????????
??????????: ?? ???? ?? ???? ??????? ?? ????? ?? Microsoft ????-?????? ?????????? ?????? ?????? ???? ??? ??. Microsoft ???? ??? ????-???????? ?? ????-???????? ????? ?????? ?? ???? ???????? ???? ?? ???? ????? ????? ??? ?? ??? ?????? ?? ???? ???? ???? ??? ????? ??. ???????, ????-???????? ???? ????? ???? ???? ???? ???. ?????, ????????, ?????-???? ?? ??????? ?? ???????? ?? ???? ???, ???? ?? ??? ?????? ???? ???? ??? ????? ??? ?? ???? ??. Microsoft ??????? ??? ???? ?? ?????? ?? ??????????, ????????? ?? ??? ?????? ?? ???? ????? ?? ???? ???????? ?? ??? ???? ????? ?? ??? ????????? ???? ??. Microsoft ????-?????? ?????????? ?? ????? ?????? ?? ?? ??? ??.
?????????? ?? ??????? ????????? ??????? ??:826433

??????????? ???

 

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