Apprezzerei un po 'di aiuto per quanto segue, ho fatto un po' di Google, ma non sono riuscito a risolverlo.

Continuo a ricevere un messaggio nel registro SQL "Impossibile allocare le pagine: FAIL_PAGE_ALLOCATION 540", seguito da un dump che aggiungerò alla fine di questa domanda.

Per tua informazione, la build è:

• Server virtuale in esecuzione su vCenter
• Windows Server 2008 R2 a 64 bit SQL
• Server 2012 SP1 Enterprise (11.0.2100) 8 GB di RAM La memoria massima e minima di SQL Server è impostata su 6144 MB

Il server fa parte di un gruppo di disponibilità a 2 nodi, questo è il nodo primario corrente.

Questa istanza ospita i database per Microsoft SharePoint

Ho eseguito una traccia di Perfmon per 24 ore che ha rivelato la caduta di PLE solo dopo una delle discariche, per poi risalire. Nient'altro particolarmente strano.

SQL Server è ancora in esecuzione.

ESTRATTO DAL REGISTRO SQL:

10/03/2014 09:59:52,spid866,Unknown,CACHESTORE_XMLDBELEMENT (node 0)                 KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                   8
10/03/2014 09:59:52,spid866,Unknown,CACHESTORE_XMLDBTYPE (node 0)                    KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                   8
10/03/2014 09:59:52,spid866,Unknown,CACHESTORE_VIEWDEFINITIONS (node 0)              KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                  16
10/03/2014 09:59:52,spid866,Unknown,CACHESTORE_NOTIF (node 0)                        KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                  16
10/03/2014 09:59:52,spid866,Unknown,CACHESTORE_TEMPTABLES (node 0)                   KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                 448
10/03/2014 09:59:52,spid866,Unknown,CACHESTORE_XPROC (node 0)                        KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                 120
10/03/2014 09:59:52,spid866,Unknown,CACHESTORE_PHDR (node 0)                         KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                              157688
10/03/2014 09:59:52,spid866,Unknown,CACHESTORE_SQLCP (node 0)                        KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                              886856
10/03/2014 09:59:52,spid866,Unknown,CACHESTORE_OBJCP (node 0)                        KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                              409760
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_FSCHUNKER (node 0)                   KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                  48
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_LWC (node 0)                         KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                   8
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLLOGPOOL (node 0)                  KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                8208
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_HADR (node 0)                        KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                 688
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_XE (node 0)                          KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                              218176
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_FILETABLE (node 0)                   KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                  16
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLSERVICEBROKERTRANSPORT (node 0)         KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                 232
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_FULLTEXT_SHMEM (node 0)              KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                      24<nl/>SM Committed                                     24<nl/>Pages Allocated                                   0
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SOSMEMMANAGER (node 0)               KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                  474880<nl/>VM Committed                                 474736<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                   0
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SOSOS (node 0)                       KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                 192
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SOSNODE (Total)                      KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                               71968
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SOSNODE (node 64)                    KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                2432
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SOSNODE (node 0)                     KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                               69536
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_HOST (node 0)                        KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                  24
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_XTP (node 0)                         KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                  16
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_XE_BUFFER (node 0)                   KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                  206208<nl/>VM Committed                                 206208<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                   0
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLQERESERVATIONS (node 0)           KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                1328
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_BHF (node 0)                         KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                 192
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLXP (node 0)                       KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                  16
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_FULLTEXT (node 0)                    KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                 296
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SNI (Total)                          KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                1024
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SNI (node 64)                        KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                  16
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SNI (node 0)                         KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                1008
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLHTTP (node 0)                     KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                   8
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLSERVICEBROKER (node 0)            KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                 984
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLCLR (node 0)                      KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                 1603008<nl/>VM Committed                                  28096<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                4816
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLCONNECTIONPOOL (node 0)           KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                               20464
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLSTORENG (node 0)                  KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                   23040<nl/>VM Committed                                  23040<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                               40144
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLUTILITIES (node 0)                KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                 408
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLOPTIMIZER (node 0)                KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                2224
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLQUERYEXEC (node 0)                KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                                2856
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLBUFFERPOOL (node 0)               KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                 3251552<nl/>VM Committed                                 137416<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                             3188808
10/03/2014 09:59:52,spid866,Unknown,MEMORYCLERK_SQLGENERAL (node 0)                  KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                      0<nl/>Locked Pages Allocated                            0<nl/>SM Reserved                                       0<nl/>SM Committed                                      0<nl/>Pages Allocated                               23920
10/03/2014 09:59:52,spid866,Unknown,Memory node Id = 64                              KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                                       0<nl/>VM Committed                                     20<nl/>Locked Pages Allocated                            0
10/03/2014 09:59:52,spid866,Unknown,Memory node Id = 0                               KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                               274536504<nl/>VM Committed                                6291428<nl/>Locked Pages Allocated                            0<nl/>Pages Allocated                             5393336<nl/>Pages Free                                    10504<nl/>Target Committed                            6291432<nl/>Current Committed                           6291432<nl/>Foreign Committed                                 0<nl/>Away Committed                                    0
10/03/2014 09:59:52,spid866,Unknown,Memory Manager                                   KB<nl/>---------------------------------------- ----------<nl/>VM Reserved                               274536568<nl/>VM Committed                                6291448<nl/>Locked Pages Allocated                            0<nl/>Large Pages Allocated                             0<nl/>Emergency Memory                               1024<nl/>Emergency Memory In Use                          16<nl/>Target Committed                            6291456<nl/>Current Committed                           6291448<nl/>Pages Allocated                             5393336<nl/>Pages Reserved                                 1224<nl/>Pages Free                                    10504<nl/>Pages In Use                                3093536<nl/>Page Alloc Potential                        2883352<nl/>NUMA Growth Phase                                 2<nl/>Last OOM Factor                                   2<nl/>Last OS Error                                     0
10/03/2014 09:59:52,spid866,Unknown,Process/System Counts                         Value<nl/>---------------------------------------- ----------<nl/>Available Physical Memory                 787546112<nl/>Available Virtual Memory                 8514575921152<nl/>Available Paging File                    8859074560<nl/>Working Set                              6637367296<nl/>Percent of Committed Memory in WS               100<nl/>Page Faults                               256980685<nl/>System physical memory high                       1<nl/>System physical memory low                        0<nl/>Process physical memory low                       0<nl/>Process virtual memory low                        0
10/03/2014 09:59:52,spid866,Unknown,Failed allocate pages: FAIL_PAGE_ALLOCATION 540

Perché ci sono solo 8208 pagine allocate a MEMORYCLERK_SQLLOGPOOL nell'estratto non sono sicuro che kb2769594 sia il colpevole / la correzione. Inoltre, nessun riferimento al pool interno o HADR come nell'esempio kb2769594. https://support.microsoft.com/kb/2769594

Quindi penso che colpevole / correzione possa essere qualcos'altro.

Sorprendente che non siano state allocate pagine di grandi dimensioni - me ne aspetterei un po 'per non-bpool con 8 GB di RAM sul server. Edizione SQL Server Enterprise? La scarsa memoria di sistema è in qualche modo sorprendente: esiste un altro grande consumatore di memoria oltre a SQL Server? Quale versione del sistema operativo? La cache dei file NTFS è ben controllata?

modifica Tramite Twitter anche chiesto se è previsto LPIM "blocco pagine in memoria" - nessuna pagina bloccata indicata sopra.

Solo per fornire un'altra risposta. Ho appena incontrato gli stessi messaggi di errore e questo problema sembra essere correlato ma non lo stesso problema risolto nel KB collegato nelle altre 2 risposte.

I messaggi di errore che ricevi sembrano indicare lo stesso, ma nel tuo caso (e nel mio) non MEMORYCLERK_SQLLOGPOOLsta occupando molta memoria, ma MEMORYCLERK_XEsta occupando più memoria di quanto ti aspetteresti.

Dopo un'indagine sulle sessioni XE su cui è stata eseguita, sono venute in mente le sessioni system_health e 2 Sharepoint (e sembra che tu stia ospitando anche sharepoint). Queste 2 sessioni accedono al target del ring ring (e registrano molti eventi).

La buona notizia è che secondo alcuni post del blog è ancora corretto in SP2 per SQL Server 2012 e dopo una settimana su SP3 l'impiegato della memoria XE sembra essere sotto controllo.

Lettura correlata:

• https://social.msdn.microsoft.com/forums/sqlserver/en-US/ea3b1e29-d288-4f41-a3f8-3fa1b71e3e82/memoryclerkxe-consuming-30-gb-memory-of-100-gb
• https://geertvanhove.wordpress.com/2015/07/02/memoryclerk_xe-and-sharepoint/

Da Geert:

Questo comportamento è generato da eventi estesi molto probabilmente creati dal monitoraggio di Sharepoint e dalla registrazione delle informazioni nei buffer dell'anello di memoria. Disabilitare i ring buffer o una corretta configurazione dei ring buffer dovrebbe risolvere questo problema.

Sbagliato, questo è un problema noto con Sharepoint su SQL Server 2012 SP1. Dopo aver installato SP2 e riavviato l'istanza, il problema è stato risolto. Tuttavia, ho suggerito di continuare a monitorare gli impiegati di memoria per altre settimane.

PS: questi errori sono stati osservati anche nel mio ambiente: utilizzo di 'dbghelp.dll' versione '4.0.5'

Modifica: posso confermare di non aver riscontrato problemi con questo server per mesi, quindi sembra che l'aggiornamento abbia risolto il mio problema.

SQL Server nel tuo caso è patchato SP1. Microsoft ha rilasciato SQL Server 2012 SP2 e sono stati corretti errori di questo tipo.

Secondo l' articolo di Microsoft la ragione è

Microsoft SQL Server 2012 potrebbe verificarsi alcuni errori di memoria insufficiente a causa di una perdita di memoria interna. In questa situazione, la memoria trapelata viene consumata dall'impiegato di memoria MEMORYCLERK_SQLLOGPOOL utilizzato internamente per le attività del registro delle transazioni. Ad esempio, l'impiegato di memoria MEMORYCLERK_SQLLOGPOOL viene utilizzato internamente per le seguenti attività del registro delle transazioni:

Attività di acquisizione dei cambiamenti AlwaysOn sulle repliche primarie

Ripeti sempre le attività del gestore sulle repliche di disponibilità secondarie

L'articolo dice che il problema è stato risolto CU2/CU5 for SQL Server 2012 SP1. Ma dal momento che Microsoft ha rilasciato SQL Server 2012 SP2 questo conterrebbe tutte queste correzioni e I highly urge you to apply SP2 ASAP.