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Bug 2048574

Summary: netdev_dpdk logged "Failed to create memory pool for netdev with MTU 1500" even though MTUs of all DPDK NICs were configured as 9000.
Product: Red Hat OpenStack Reporter: Haresh Khandelwal <hakhande>
Component: documentationAssignee: mgeary <mgeary>
Status: CLOSED CURRENTRELEASE QA Contact: RHOS Documentation Team <rhos-docs>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 13.0 (Queens)CC: apevec, cfields, chrisw, ekuris, eolivare, hakhande, ktraynor, marjones, mgeary, ovs-team, rhayakaw, smooney
Target Milestone: ---Keywords: ZStream
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 2040554 Environment:
Last Closed: 2022-06-02 12:38:31 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2040554, 2281859    
Bug Blocks:    

Comment 8 mgeary 2022-04-13 15:51:38 UTC 
Note: If the MTU size is not 1500, you might get a Failed to create memory pool error message in /var/log/messages. You can ignore this error message if it occurs at instance start up. 

published at https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.2/html-single/network_functions_virtualization_planning_and_configuration_guide/index#c_ovsdpdk-memory-params
Comment 15 mgeary 2022-05-24 16:57:22 UTC 
Addition to note at:

https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.2/html/network_functions_virtualization_planning_and_configuration_guide/assembly_ovsdpdk_parameters#concept_ovsdpdk-cpu-parameters
Comment 17 mgeary 2022-05-25 11:55:59 UTC 
Note added to OSP 13 NFV Guide

https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/13/html/network_functions_virtualization_planning_and_configuration_guide/assembly_ovsdpdk_parameters#c_ovsdpdk-memory-params