Skip to main content

ORA-04021 timeout occurred while waiting to lock object



Error : ORA-04021 timeout occurred while waiting to lock object


Solutions:


1. Look in V$SESSION_EVENT and V$SESSION_WAIT to see what the session is waiting on.
2. Use the V$LOCKED_OBJECT view to find out if anyone else is locking the object.
3. Check  DB links which aren't working correctly.

Kill the relevant sessions if needed.

Comments

Post a Comment

Popular posts from this blog

Setting ORACLE_SID

The  Oracle System ID  ( S ID ) is used to uniquely identify a particular database on a system How to set ORACLE_SID: Windows: set ORACLE_SID=orcl Unix/ Linux: export ORACLE_SID=orcl SID is case sensitive in Unix / Linux environments. How to check the current ORACLE_SID: Windows: Go to the commnand prompt and type as C:\> set ORACLE_SID (This will show if any ORACLE_SID is already set). C:\> set (To know all the parameters set) Unix/ Linux: echo $ORACLE_SID
1 comment
Read more

Building Continuous Data Trust with Oracle GoldenGate Veridata 26c

Today I'll discus on how we can build continuous data trust with Oracle GoldenGate Veridata 26c! As we accelerate towards hybrid and multi cloud architectures , one challenge keep coming up. That is "H ow do you trust your data across all these platforms?" With increasing data movement, replication, and transformation, even small changes can lead to major business risks. This is where Oracle GoldenGate Veridata 26c comes in handy! Rather than just validating data occasionally, the focus now is on continuous data trust . What is Veridata? It is a tool to compare data across different systems. It ensures source and target databases are in sync. It works during , Data migration, Replication setups, Ongoing operations. What’s new in Veridata 26c? 1. Support for Modern Architectures Built for hybrid, multi-cloud, and lakehouse environments with support for heterogeneous databases. 2. Continuous Data Validation Enables ongoing validation to detect data drift and inconsisten...
Post a Comment
Read more