Có ai biết "Trình nghe IOCP không cho năng suất" biểu thị điều gì không?
Trên máy chủ SQL của chúng tôi vừa có kết xuất lỗi:
=====================================================================
BugCheck Dump
=====================================================================
This file is generated by Microsoft SQL Server
version 9.00.5292.00
upon detection of fatal unexpected error. Please return this file,
the query or program that produced the bugcheck, the database and
the error log, and any other pertinent information with a Service Request.
Computer type is AT/AT COMPATIBLE.
Bios Version is DELL - 1
Phoenix ROM BIOS PLUS Version 1.10 1.5.2
Current time is 23:01:04 09/07/12.
48 Unknown CPU 9., 2 Mhz processor (s).
Windows NT 6.1 Build 7601 CSD Service Pack 1.
Memory
MemoryLoad = 81%
Total Physical = 524278 MB
Available Physical = 97549 MB
Total Page File = 524276 MB
Available Page File = 94472 MB
Total Virtual = 8388607 MB
Available Virtual = 7846765 MB
**Dump thread - spid = 0, PSS = 0x0000000000000000, EC = 0x0000000000000000
***Stack Dump being sent to C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\LOG\SQLDump0008.txt
* *******************************************************************************
*
* BEGIN STACK DUMP:
* 09/07/12 23:01:04 spid 0
*
* Non-yielding IOCP Listener
*
* ******************************************************************************* </pre>
SQLDump0008.log contains:
<pre>
No user action is required.
2012-09-07 18:30:11.28 spid782 Recovery of any in-doubt distributed transactions involving Microsoft Distributed Transaction Coordinator (MS DTC) has completed. This is an informational message only. No user action is required.
2012-09-07 20:58:54.53 spid196 The alert for 'average delay' has been raised. The current value of '509' surpasses the threshold '100'.
2012-09-07 20:59:24.74 spid477 The alert for 'average delay' has been raised. The current value of '299' surpasses the threshold '100'.
2012-09-07 21:44:06.53 spid23s Database mirroring is inactive for database 'ToDoLists'. This is an informational message only. No user action is required.
2012-09-07 21:44:06.59 spid456 The alert for 'average delay' has been raised. The current value of '518' surpasses the threshold '100'.
2012-09-07 21:44:57.98 spid425 Error: 18056, Severity: 20, State: 27.
2012-09-07 21:44:57.98 spid425 The client was unable to reuse a session with SPID 425, which had been reset for connection pooling. This error may have been caused by an earlier operation failing. Check the error logs for failed operations immediately before this error message.
2012-09-07 21:44:57.98 spid808 Error: 18056, Severity: 20, State: 27.
2012-09-07 21:44:57.98 spid808 The client was unable to reuse a session with SPID 808, which had been reset for connection pooling. This error may have been caused by an earlier operation failing. Check the error logs for failed operations immediately before this error message.
2012-09-07 21:44:58.01 spid155 Error: 18056, Severity: 20, State: 27.
2012-09-07 21:44:58.01 spid155 The client was unable to reuse a session with SPID 155, which had been reset for connection pooling. This error may have been caused by an earlier operation failing. Check the error logs for failed operations immediately before this error message.
2012-09-07 21:44:58.03 spid486 Task (Worker 0x00000001B93B21C0) was forced to yield 2 times:
2012-09-07 21:44:58.04 spid65s Database mirroring is inactive for database 'Tracking'. This is an informational message only. No user action is required.
2012-09-07 21:44:58.06 spid486 Task (Worker 0x0000000CB9B341C0) was forced to yield 8 times:
2012-09-07 21:44:58.09 spid486 Task (Worker 0x0000000655A9E1C0) was forced to yield 3 times:
2012-09-07 21:44:58.10 spid486 Task (Worker 0x00000006C03BE1C0) was forced to yield 8 times:
2012-09-07 21:44:58.11 spid65s Error: 1404, Severity: 16, State: 6.
2012-09-07 21:44:58.11 spid65s The command failed because the database mirror is busy. Reissue the command later.
2012-09-07 21:44:58.11 spid486 Task (Worker 0x0000000C819D01C0) was forced to yield 2 times:
2012-09-07 21:44:58.49 spid140 The alert for 'average delay' has been raised. The current value of '191' surpasses the threshold '100'.
2012-09-07 21:45:00.66 spid46s SQL Server has encountered 6 occurrence(s) of cachestore flush for the 'Object Plans' cachestore (part of plan cache) due to some database maintenance or reconfigure operations.
2012-09-07 21:45:17.25 spid83s SQL Server has encountered 6 occurrence(s) of cachestore flush for the 'SQL Plans' cachestore (part of plan cache) due to some database maintenance or reconfigure operations.
2012-09-07 21:45:17.25 spid54s SQL Server has encountered 6 occurrence(s) of cachestore flush for the 'Bound Trees' cachestore (part of plan cache) due to some database maintenance or reconfigure operations.
2012-09-07 21:45:17.28 spid45s The mirrored database "Tracking" is changing roles from "PRINCIPAL" to "MIRROR" due to Role Syncronization.
2012-09-07 21:45:17.61 spid46s Bypassing recovery for database 'Tracking' because it is marked as a mirror database, which cannot be recovered. This is an informational message only. No user action is required.
2012-09-07 21:45:29.21 spid45s Database mirroring is active with database 'Tracking' as the mirror copy. This is an informational message only. No user action is required.
2012-09-07 21:50:56.94 spid196s SQL Server has encountered 5 occurrence(s) of cachestore flush for the 'Object Plans' cachestore (part of plan cache) due to some database maintenance or reconfigure operations.
2012-09-07 21:50:57.14 spid196s SQL Server has encountered 5 occurrence(s) of cachestore flush for the 'SQL Plans' cachestore (part of plan cache) due to some database maintenance or reconfigure operations.
2012-09-07 21:50:57.14 spid196s SQL Server has encountered 5 occurrence(s) of cachestore flush for the 'Bound Trees' cachestore (part of plan cache) due to some database maintenance or reconfigure operations.
2012-09-07 23:00:09.42 spid438 Error: 18056, Severity: 20, State: 27.
2012-09-07 23:00:09.42 spid438 The client was unable to reuse a session with SPID 438, which had been reset for connection pooling. This error may have been caused by an earlier operation failing. Check the error logs for failed operations immediately before this error message.
2012-09-07 23:01:04.26 Server Using 'dbghelp.dll' version '4.0.5'
2012-09-07 23:01:04.29 Server **Dump thread - spid = 0, PSS = 0x0000000000000000, EC = 0x0000000000000000
2012-09-07 23:01:04.29 Server ***Stack Dump being sent to C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\LOG\SQLDump0008.txt
2012-09-07 23:01:04.29 Server * *******************************************************************************
2012-09-07 23:01:04.29 Server *
2012-09-07 23:01:04.29 Server * BEGIN STACK DUMP:
2012-09-07 23:01:04.29 Server * 09/07/12 23:01:04 spid 0
2012-09-07 23:01:04.29 Server *
2012-09-07 23:01:04.29 Server * Non-yielding IOCP Listener
2012-09-07 23:01:04.29 Server *
2012-09-07 23:01:04.29 Server * *******************************************************************************
2012-09-07 23:01:04.29 Server * -------------------------------------------------------------------------------
2012-09-07 23:01:04.29 Server * Short Stack Dump
2012-09-07 23:01:04.33 spid73 The alert for 'average delay' has been raised. The current value of '304' surpasses the threshold '100'.
2012-09-07 23:01:04.34 Server Stack Signature for the dump is 0x00000000000002E8
Thông báo về thông báo 'độ trễ trung bình' liên quan đến phản chiếu cơ sở dữ liệu và là cảnh báo được đưa ra khi thời gian thực hiện giao dịch vượt quá thời gian quy định. Các is_event_loggedcột là 0 cho 'chậm trễ trung bình' cảnh báo.
Bạn có thể thấy đầu ra từ sys.configurationstại Điều gì có thể khiến phiên phản chiếu hết thời gian chờ rồi chuyển đổi dự phòng? .