Patches Available for Deadlocks, Concurrency And Performance Events Observed In MWM v220.127.116.11 Database
Last updated on FEBRUARY 20, 2018
Applies to:Oracle Utilities Mobile Workforce Management - Version 18.104.22.168 to 22.214.171.124 [Release 2.1]
Oracle Real-Time Scheduler - Version 126.96.36.199 to 188.8.131.52 [Release 2.1]
Information in this document applies to any platform.
While analyzing the alert logs and database trace file of our 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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