* [linux-lvm] questions about dlm: add TCP multihoming/failover support
@ 2019-09-24 9:04 Gang He
2019-09-24 14:45 ` David Teigland
0 siblings, 1 reply; 2+ messages in thread
From: Gang He @ 2019-09-24 9:04 UTC (permalink / raw)
To: LVM general discussion and development
Hello List,
When I tried to upgrade libdlm to v4.0.9, I can see one commit for add TCP multihoming/failover support.
commit 7a273b8714da400d292d6c9762acedcde1997e52
Author: David Windsor <dwindsor@redhat.com>
Date: Tue May 7 09:56:53 2019 -0400
dlm_controld: bind to all interfaces for failover
According to the commit description, I can find there are some kernel related patches(fs/dlm in kernel space).
e.g.
https://www.redhat.com/archives/cluster-devel/2019-January/msg00009.html
https://www.redhat.com/archives/cluster-devel/2019-January/msg00010.html
But, so far, these kernel patches have not been in Torvalds kernel git tree.
That means we cannot use this feature, although we upgrade libdlm to v4.0.9?
Second, how to use this feature after these kernel patch are available? There is any document to guide the use to use(or test) this feature?
Third, There is any differences between TCP multihoming/failover feature and STCP feature? Please give some comments when choice two features?
Thanks
Gang
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [linux-lvm] questions about dlm: add TCP multihoming/failover support
2019-09-24 9:04 [linux-lvm] questions about dlm: add TCP multihoming/failover support Gang He
@ 2019-09-24 14:45 ` David Teigland
0 siblings, 0 replies; 2+ messages in thread
From: David Teigland @ 2019-09-24 14:45 UTC (permalink / raw)
To: Gang He; +Cc: LVM general discussion and development
On Tue, Sep 24, 2019 at 09:04:56AM +0000, Gang He wrote:
> Hello List,
>
> When I tried to upgrade libdlm to v4.0.9, I can see one commit for add TCP multihoming/failover support.
> commit 7a273b8714da400d292d6c9762acedcde1997e52
> Author: David Windsor <dwindsor@redhat.com>
> Date: Tue May 7 09:56:53 2019 -0400
> dlm_controld: bind to all interfaces for failover
>
> According to the commit description, I can find there are some kernel related patches(fs/dlm in kernel space).
> e.g.
> https://www.redhat.com/archives/cluster-devel/2019-January/msg00009.html
> https://www.redhat.com/archives/cluster-devel/2019-January/msg00010.html
>
> But, so far, these kernel patches have not been in Torvalds kernel git tree.
> That means we cannot use this feature, although we upgrade libdlm to v4.0.9?
>
> Second, how to use this feature after these kernel patch are available? There is any document to guide the use to use(or test) this feature?
The project was never completed and seems to be abandoned. I will revert
that dlm_controld commit if it's never used for anything.
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