Hi Fei, My experience with obj# in wait events is that the developers were not very consistent about cleaning up after themselves. It is pretty common to see events that are not related to individual objects that have an obj# (presumably because the developers didn’t clear the field), -1 is generally used when an obj# does not apply and the developers have taken the time to set it. How to analyze or trouble-shooting ... - community.oracle.com Hi, experts Yesterday afternoon our production system (oracle db server 11.2.0.4.0 for Linux x86_64) has produced a large amount of wait event 'enq: TX - row lock contention'.Please take a look at my several screenshots as follows, To restore business as soon as possible, afterwards I manually killed all of the OS processes that produced row lock contention immediately. The following is Oracle死锁问题 | Oracle Community
ashrpt.sql脚本用来生成一个html或text格式的报告来显示特定持续期间的ash信息.为了生成一个ash报告执行以下操作: ... 顶级等待事件参数P1/P2/P3 ... slot time (持续时间 ...
In Session 2, insert a row into the parent and child tables, delete a row in the ...... usn<<16 | slot=131104 sequence=8831 obj#=-1 tim=1749514958 WAIT #2: ... ASH Report - NoCOUG Feb 12, 2008 ... Top User Events; Top Background Events; Top Event P1/P2/P3 Values. Back to Top ... 34.69, name|mode, usn<<16 | slot, sequence ... BHDB.oracle.com, EmailServiceInstance, 100.00, es_access: ... Complete List of SQL Text ... enq: TX - row lock contention ... usn<<16 | slot ... sequence ... - FreeLists Jan 18, 2008 ... enq: TX - row lock contention ... usn<<16 | slot ... sequence Wait ... To: "oracle-l@ xxxxxxxxxxxxx"
When an Oracle instance is started in a Unix environment, a handle (shmid) for the shared memory segment (SGA) is constructed using the values of both ORACLE_SID and ORACLE_HOME as inputs to the shmget system call. As an academic exercise just to prove the point, let’s do something that...
You have had two session that each waited for a resource that was held by the other session. For example: Session 1 update table_ .... where x = 100; Session 1 has now locked the record x=100. No other session can modify this record until Session1 either commits or rolls... Взаимные блокировки в Oracle В ранних версиях Oracle начальное и максимальное количество слотов таблицы транзакций можно было задавать с помощью параметров таблицы INITRANS и MAXTRANS. Теперь изменение этих параметров не имеет никакого значения. В связи с этим, для того чтобы... www.ПЕРВЫЕ ШАГИ.ru :: Шаг 134 - БД Oracle - Импорт... Но если количество индексов для отделения не большое, то можно воспользоваться опцией rebuild команды alter index. Вот собственно кратко о том, как выполняется импорт и экспорт в БД Oracle! Key Tables for Oracle Purchase and P2P Cycle Flow P2P cycle (Procure To Pay). P2P Work Flow: Ø Item Creation. Ø Requisition. Ø Requisition Approval. Ø Request for Quote (RFQ). Ø Quotat ion. Ø Quote Analysis (Track/check record). Ø Issue Purchase Order (PO). Ø PO Approval. Ø Goods Receipt Note (GRN).
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Dec 20, 2002 · Regards, Waleed -----Original Message----- Sent: Friday, December 20, 2002 2:29 PM To: Multiple recipients of list ORACLE-L If the wait times on the latch were significant, I think I'd check that the inserts were high volume inserts into tables with a very small extent sizes and lots of indexes, also with very small extents. Oracle Transaction En-queue Waits and Locked Objects Jul 31, 2017 · Oracle Transaction En-queue Waits and Locked Objects By David Fitzjarrell Recently a question was posted on the Oracle General database forum asking how to find the locked object when the "Top Event P1/P2/P3" values section of an ASH report looks like this (obviously the Diagnostic Pack license is required for such an investigation):
INITRANS и ошибки при большом кол-ве одновременных…
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Donghua's Blog - DBAGlobe: Decoding P1/P2/P3 in for event 'enq: TX ... Nov 30, 2014 ... 2 from v$event_name where name='enq: TX - row lock contention';. EVENT# ... usn<<16 | slot 196619 000000000003000B. SQL> select p3text ... Week 11: Oracle Database 10g Top 20 DBA Features: Week 11 SID : 269 SEQ# : 56 EVENT : enq: TX - row lock contention P1TEXT : name|mode P1 : 1415053318 P1RAW : 54580006 P2TEXT : usn<<16 | slot P2 : 327681 ... Oracle Transaction En-queue Waits and Locked Objects ...