Performance Issue: System Call In ODM Cause Session Lock, In SQL Developer 4.1 (Doc ID 2079030.1)

Last updated on MARCH 08, 2017

Applies to:

Oracle Data Mining - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

Blocking sessions using the following SQL.


select s.action,s.prev_exec_start,s.osuser,s.blocking_session,s.seconds_in_wait, s.sql_id,sql_fulltext ,s.*, p.*
from v$session s, v$process p, V$SQL sql
where s.paddr = p.addr  
and sql.sql_id = s.sql_id
and blocking_session is not NULL
and seconds_in_wait > 60
order by s.prev_exec_start desc;

Cause

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