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MIRA SPEED IS SLOW IN OPEN MODE (Doc ID 2763312.1)

Last updated on MARCH 24, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 18.9.0.0.0 and later
Information in this document applies to any platform.

Symptoms

MIRA speed is slow in Open stage as Compared to the Mount stage.

When Changed to SIRA the speed is Same and high in both Open and Mount stage.

This is a Four node Rac standby .

MOUNT + MIRA

DGMGRL> show database verbose <name>

Database - <name>

Role: PHYSICAL STANDBY
Intended State: APPLY-ON
Transport Lag: 0 seconds (computed 0 seconds ago)
Apply Lag: 9 minutes 30 seconds (computed 0 seconds ago)
Average Apply Rate: 200 MByte/s
Active Apply Rate: (unknown)
Maximum Apply Rate: (unknown)
Real Time Query: OFF
Instance(s):
skpe011 (apply instance)
skpe012
skpe013
skpe014

 

OPEN MODE  + MIRA

DGMGRL> show database verbose <name>

Database - <name>

Role: PHYSICAL STANDBY
Intended State: APPLY-ON
Transport Lag: 0 seconds (computed 2 seconds ago)
Apply Lag: 4 hours 11 minutes (computed 0 seconds ago)
Average Apply Rate: 110.01 MByte/s
Active Apply Rate: (unknown)
Maximum Apply Rate: (unknown)
Real Time Query: ON
Instance(s):
skpe011 (apply instance)
skpe012
skpe013
skpe014

 


Following Changes /Patches already applied

 

Cause

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In this Document
Symptoms
Cause
Solution
References


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