Patches Available for Deadlocks, Concurrency And Performance Events Observed In MWM v184.108.40.206 Database
(Doc ID 1604683.1)
Last updated on FEBRUARY 28, 2019
Applies to:Oracle Utilities Mobile Workforce Management - Version 220.127.116.11 to 18.104.22.168 [Release 2.1]
Oracle Real-Time Scheduler - Version 22.214.171.124 to 126.96.36.199 [Release 2.1]
Information in this document applies to any platform.
While analyzing the alert logs and database trace file of our Oracle Utilities Mobile Workforce Management (MWM) database, we noticed 'deadlocks' and concurrency problems.
Issues addressed by the patches below are identified by system logging which includes the following:
'ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired''
'FATAL (scheduler.process.SchedulerEventsUpdate_ISD) Failed to process schedule update, rolling back transaction'
'Failed to process registry entry'
'ORA-00060: deadlock detected while waiting for resource'
'Could not synchronize database state with session'
Database ASH report
'enq: TX - row lock contention' as a top event involving SQL updates to M1_TASK and M1_SCHED_REG
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