[ClusterLabs] [Cluster-devel] DLM connection channel switch take too long time (> 5mins)

Digimer lists at alteeve.ca
Fri Mar 9 00:59:36 EST 2018

On 2018-03-08 12:10 PM, David Teigland wrote:
>> I use active rrp_mode in corosync.conf and reboot the cluster to let the configuration effective.
>> But, the about 5 mins hang in new_lockspace() function is still here.
> The last time I tested connection failures with sctp was several years
> ago, but I recall seeing similar problems.  I had hoped that some of the
> sctp changes might have helped, but perhaps they didn't.
> Dave

To add to this; We found serious issues with DLM over sctp/rrp. Our
solution was to remove RRP and reply on active/passive (mode=1) bonding.
I do not believe you can make anything using DLM reliable on RRP in
either active or passive mode.

Papers and Projects: https://alteeve.com/w/
"I am, somehow, less interested in the weight and convolutions of
Einstein’s brain than in the near certainty that people of equal talent
have lived and died in cotton fields and sweatshops." - Stephen Jay Gould

More information about the Users mailing list