Re: Function call very slow from JDBC/java but super fast from DBear

["An, Hongguo (CORP)" <Hongguo.An@xxxxxxx>]

Hi Dave:

Thanks for helping me out.

However, I am not sure what do you mean unnamed statement. Which one is using unnamed statement ?(Dbeaver or JDBC), and if the named statement is good, how can I do it from JDBC?

 

The server is in AWS RDS, I don’t see any log, should I reconfig the server to get logs?

I tried to

Explain call …, but it said syntax error.

 

When the JDBC is running, I got the pid, is there any way for me to check what is it waiting for? There is no dead lock, but some relationship locks, all granted and no waiting, but why it never comes back?

 

Thanks

Andrew

 

From: Dave Cramer <davecramer@postgres.rocks>
Date: Wednesday, August 9, 2023 at 6:30 AM
To: An, Hongguo (CORP) <Hongguo.An@xxxxxxx>
Cc: pgsql-performance@xxxxxxxxxxxxxxxxxxxx <pgsql-performance@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: Function call very slow from JDBC/java but super fast from DBear

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On Tue, 8 Aug 2023 at 17:07, An, Hongguo (CORP) <Hongguo.An@xxxxxxx> wrote:

Hi:

I have a function, if I call it from DBeaver, it returns within a minute.

 

call commonhp.run_unified_profile_load_script_work_assignment_details('BACDHP', 'G3XPM6YE2JHMSQA2');

 

 

but if I called it from spring jdbc template, it never comes back:

     public void runTransform(String proc, InitDataLoadEntity entity) {

          log.info("Initial data finished data migration for {}, starting transform for {}...", entity.getOrganizationOid(), proc);

          var schema = clientDbInfo.getSchema(entity.getOrganizationOid())[1].toUpperCase();

          var count = unifiedProfileJdbcTemplate.update("call commonhp." + proc + "(?, ?)", schema, entity.getOrganizationOid());

          log.info("Initial data finished data migration for {}, end transform for {}, result is {}", entity.getOrganizationOid(), proc, count);

     }

 

 

The server does show high CPU, the function has mainly just one insert command (batch insert), the target table has 3 FKs.

 

 

The main difference is that we are going to use an unnamed statement to run this. 

 

Do you have server logs to see the statement being executed ?

 

explain plan(s)

 

Dave 

 

Please help.

Thanks

Andrew

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