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Copy( cp) Performance On ACFS (Doc ID 1450794.1)

Last updated on MARCH 06, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.0. and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

You have started copy command 'cp' from one node on ACFS and it was interrupted when you run command 'ls' on same directory from another node.cp command will hang and cp process will shoot up and be top process.

you will see high time spend on 'getdents' operation,if you do strace or truss on that ls process .

OSwatcher Top output from the node where cp command was running::

 

Cause

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In this Document
Symptoms
Cause
Solution
References


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