sql server deadlock monitor

What is a deadlock? ==================== A deadlock occurs when two system server process IDs (SPIDs) are waiting for a resource and neither process can advance because the other process is preventing it from getting the resource. for example, Andrew holds a lock on table A and requests a lock on table B; Lindsay holds a lock on table B and requests a lock on tab

this time, we can use the following stored procedures to detect the process and SQL statements that cause the deadlock. The built-in system stored procedures sp_who and sp_lock of SQL Server can also be used to find blocking and deadlocks, but the method described here is not easy to use. Use masterGoCreate procedur

Sessions 1 and Session 2 cannot continue until the other party frees resources. Therefore, SQL Server chooses a session in the deadlock as the "deadlock victim." Note: The deadlock victim's session will be killed and the transaction will be rolled back. Note: deadlocks and

Let's start with an example of this, which can cause deadlocks in SQL Server 2000 and 2005. In this article, I use the latest CTP (Community Technology Preview, Community Technology Preview) version of SQL Server 2005, and the same applies to SQL

Record the deadlock process and solution of the company's warehouse database server, and the warehouse database Four Conditions for deadlock: Mutual exclusion: resources cannot be shared and can only be used by one process. Hold and wait: processes that have obtained resources can apply for new resources again. No pre-emption: allocated resources cannot be forcib

large transaction, the transaction is too large to allow other sessions to wait for exclusive lock time to become longer 2, everyone is using the same nonclustered index, and scan the Pricingexpressproductcode field 3, the index of repeated values are many From the above symptoms can be basically judged, this nonclustered index is useless, you can disable the ALTER INDEX [ix_pricingexpressproductcode_state] on [dbo]. [Orderxxx] DISABLE After disabling, the

Use of MSSQL webmaster Friends will be MSSQL database to eat memory ability to admire admiration, a small site, run a few days later, MSSQL will put all the memory on the server, at this time you have to restart the server or MSSQL to free memory, Some people think that the MSSQL has a memory leak problem, in fact, Microsoft gave us a clear explanation: After you start

Use of MSSQL webmaster Friends will be MSSQL database to eat memory ability to admire admiration, a small site, run a few days later, MSSQL will put all the memory on the server, at this time you have to restart the server or MSSQL to free memory, Some people think that the MSSQL has a memory leak problem, in fact, Microsoft gave us a clear explanation: After you start

Label:"SQL Server 2005 deadlock resolution Exploration" mentioned earlier, deadlock severity, an average of one deadlock per day, and a lot of data and ideas in resolving and handling SQL server2005 deadlocks, and then we used the

('dbcc inputbuffer ('+ @ spid + ')') If @ sign = 'deadlocked process' exec ('Kill '+ @ spid) Set @ I = @ I + 1 End End Else While @ I Begin Select @ s = 'dbcc inputbuffer ('+ Cast (process ID as varchar) +') 'from # t where id = @ I Insert # T1 exec (@ s) Set @ I = @ I + 1 End Select a. *, the SQL statement of the Process = B. eventinfo From # t a join # t1 B on A. ID = B. ID End Go Set quoted_identifier off Go Set

Select T.username,count (*) from v$session T GROUP by T.username //Find the sql_id value that a user is executing based on the user group session Select * From V$session t where T.username = ' BUDGET ' and t.sql_id are NOT NULL //lookup corresponding SQL_ID's corresponding SQL statement select M.sql_text from V$session T, V$sqlarea m where t.username = ' BUDGET ' and t.sql_id = m.sql_id // SELECT * from V$sqlarea t where T. sql_id = ' G92sy7kwt6mrq '

once you find a process that you think is slowing down your system speed? In most cases, no action can be taken to monitor the system. It is not advisable to end this process because it includes a lot of system locking, unless you are absolutely sure that there will be no other negative effects. Otherwise, you should find a way to automatically analyze the lock status. Another solution is to come up with a way to make a notification when the number o

The use of SQL Server as a database application system, will not be able to sometimes create a deadlock, after the deadlock, the maintenance personnel or developers will mostly only through the sp_who to find the deadlock process, and then killed with Sp_kill. With Sp_who_lo

(in milliseconds) to set the lock request timeout . By default, the database does not have a time-out period (the Timeout_period value is-1, which can be viewed with the SELECT @ @LOCK_TIMEOUT, that is, waiting indefinitely). When the request lock exceeds Timeout_period, an error is returned. A timeout_period value of 0 means no wait at all, and a message is returned when a lock is encountered. Setting the lock request timed out, breaking the second necessary condition of the

Replication is the most powerful and complex component in SQL Server, so it is unavoidable to replicate errors in specific applications. But, thankfully, SQL Server provides replication management tools-Replication Monitor to help DBAs find out why replication errors occur.

Some time ago there is a maintenance of the author of the small computer room air conditioning failure, high temperature caused the system card slow, no one found. So I want to use Zabbix to monitor the CPU temperature and set the alarm threshold value, but also can monitor the fan anomaly, the wind board too dirty air, process deadlock caused high CPU usage anom

Monitor server processes Kent SharkeyMicrosoft Corporation Applicable:Microsoft ASP. NET Abstract:Learn how to create an ASP. Net HTTP handler to view the running and closing status of the processes used by the web site. In addition, you will learn how to create a configuration section handler (this article contains links to an English site ). Download the Visual C # version of processhandlercs. MSI. Downl