有人可以告訴我爲什麼下面的SQL Server查詢是死鎖和解決方案是什麼修復它?這是爲什麼SQL Server查詢死鎖?
<deadlock-list>
<deadlock victim="process88b5b8">
<process-list>
<process id="process88b5b8" taskpriority="0" logused="76132" waitresource="RID: 32:1:151867:174" waittime="5093" ownerId="65554098" transactionguid="0xedf3314c05f1124cbe8d480cd092e03e" transactionname="DTCXact" lasttranstarted="2011-09-02T19:00:29.690" XDES="0x1029e040" lockMode="S" schedulerid="1" kpid="5108" status="suspended" spid="118" sbid="0" ecid="0" priority="0" transcount="2" lastbatchstarted="2011-09-02T19:00:31.317" lastbatchcompleted="2011-09-02T19:00:31.300" hostname="MELWFPL382S" hostpid="0" loginname="MM4" isolationlevel="repeatable read (3)" xactid="65554098" currentdb="32" lockTimeout="4294967295" clientoption1="671088672" clientoption2="128056">
<executionStack>
<frame procname="adhoc" line="1" stmtstart="78" sqlhandle="0x020000004b4b0a0d63e1040095143cbaa0174ffc3e076067"> delete from PARTIES where [email protected] and ISCOUNTERPARTY='N' and PARTYID in (select PARTYID from NAB_PARTY_EXTEND (nolock) where [email protected]) </frame>
<frame procname="unknown" line="1" sqlhandle="0x000000000000000000000000000000000000000000000000">unknown </frame>
</executionStack>
<inputbuf>(@P0 nvarchar(4000),@P1 nvarchar(4000))delete from PARTIES where [email protected] and ISCOUNTERPARTY='N' and PARTYID in (select PARTYID from NAB_PARTY_EXTEND (nolock) where [email protected]) </inputbuf>
</process>
<process id="process9196a8" taskpriority="0" logused="132612" waitresource="RID: 32:1:140302:31" waittime="5046" ownerId="65554657" transactionguid="0x7313c78fecc8914dac3ed821cd7c21fe" transactionname="DTCXact" lasttranstarted="2011-09-02T19:00:34.100" XDES="0x12835778" lockMode="S" schedulerid="2" kpid="3692" status="suspended" spid="94" sbid="0" ecid="0" priority="0" transcount="2" lastbatchstarted="2011-09-02T19:00:35.690" lastbatchcompleted="2011-09-02T19:00:35.687" hostname="MELWFPL382S" hostpid="0" loginname="MM4" isolationlevel="repeatable read (3)" xactid="65554657" currentdb="32" lockTimeout="4294967295" clientoption1="671088672" clientoption2="128056">
<executionStack>
<frame procname="adhoc" line="1" stmtstart="78" sqlhandle="0x020000004b4b0a0d63e1040095143cbaa0174ffc3e076067">delete from PARTIES where [email protected] and ISCOUNTERPARTY='N' and PARTYID in (select PARTYID from NAB_PARTY_EXTEND (nolock) where [email protected]) </frame>
<frame procname="unknown" line="1" sqlhandle="0x000000000000000000000000000000000000000000000000">unknown </frame>
</executionStack>
<inputbuf>(@P0 nvarchar(4000),@P1 nvarchar(4000))delete from PARTIES where [email protected] and ISCOUNTERPARTY='N' and PARTYID in (select PARTYID from NAB_PARTY_EXTEND (nolock) where [email protected]) </inputbuf>
</process>
</process-list>
<resource-list>
<ridlock fileid="1" pageid="140302" dbid="32" objectname="mm4_melwfpl382s.dbo.COUNTERPARTYSSI" id="lock170fa500" mode="X" associatedObjectId="72057595803336704">
<owner-list>
<owner id="process88b5b8" mode="X" />
</owner-list>
<waiter-list>
<waiter id="process9196a8" mode="S" requestType="wait" />
</waiter-list>
</ridlock>
<ridlock fileid="1" pageid="151867" dbid="32" objectname="mm4_melwfpl382s.dbo.COUNTERPARTYSSI" id="lock20e65d80" mode="X" associatedObjectId="72057595803336704">
<owner-list>
<owner id="process9196a8" mode="X" />
</owner-list>
<waiter-list>
<waiter id="process88b5b8" mode="S" requestType="wait" />
</waiter-list>
</ridlock>
</resource-list>
</deadlock>
</deadlock-list>
我不明白的是兩個進程如何在同一個對象上有獨佔鎖。
PARTIES表上有一個索引(IDX_NC_PARTIES_PARTYEXTERNALREF_ISCOUNTERPARTY_PARTYID),數據庫設置爲讀取已提交的快照。
謝謝,
韋恩。
也許您擁有的觸發器正在激活並鎖定資源。如果你有觸發器,首先嚐試禁用它們,看看你的查詢是否運行。 – itsols
您的刪除查詢有問題嗎? – itsols
如果涉及觸發器,我會在星期一檢查。不幸的是,這不是那種容易重現的問題,即我需要將數千條消息輸入到我們的應用程序中,並在發生死鎖之前等待數小時。死鎖是隨機發生的,即它看起來像是各種過程之間的時間問題。添加上述索引是我最近嘗試擺脫僵局。 – Wayne