Spring Batch ORA-08177: can't serialize access for this transaction when running single job, SERIALIZED isolation level

Question

I am getting this exception with SERIALIZED isolation level on JobRepository in Spring Batch:

org.springframework.dao.CannotSerializeTransactionException: Pr         


        

Answer 1

When using serialized transactions you need to increase the initrans parameter on the table per the Oracle Docs. To handle serialized transactions this needs to be 3 or more.

alter table BATCH_.... INITRANS 3

Answer 2

My case when there is something happen on the DB side, re-run have the same problem.

To resolve I clean up all the table below and re-run seems fine after that.

• BATCH_JOB_EXECUTION
• BATCH_JOB_EXECUTION_CONTEXT
• BATCH_JOB_EXECUTION_PARAMS
• BATCH_JOB_INSTANCE
• BATCH_STEP_EXECUTION
• BATCH_STEP_EXECUTION_CONTEXT

Answer 3

We have tried jacking up INI_TRANS to 100 and we were still running into issues

I found this article that suggests adding ROWDEPENDENCIES to the creation of tables.

http://www.devx.com/dbzone/Article/41591?pf=true

For me with INI_TRANS & now ROWDEPENDENCIES the exceptions for Serialized have gone away.

Update: Turns out not to be a perfect solution. We did have one event of this SERIALIZED exception happen over night. Now that's much better as we had 100s of runs before a single failure but it appears that using ROWDEPENDENCIES isn't a yet a complete solution.