[gpfsug-discuss] 'mmces address move' weirdness?

[Sobey, Richard A]

I think it's intended but I don't know why. The AUTH service became unhealthy on one of our CES nodes (SMB only) and we moved its float address elsewhere. CES decided to move it back again moments later despite the node not being fit.


Sorry that doesn't really help but at least you're not alone!


________________________________
From: gpfsug-discuss-bounces at spectrumscale.org <gpfsug-discuss-bounces at spectrumscale.org> on behalf of valdis.kletnieks at vt.edu <valdis.kletnieks at vt.edu>
Sent: 12 June 2017 20:41
To: gpfsug-discuss at spectrumscale.org
Subject: [gpfsug-discuss] 'mmces address move' weirdness?

So here's our address setup:

mmces address list

Address         Node                                Group      Attribute
-------------------------------------------------------------------------
172.28.45.72    arproto1.ar.nis.isb.internal        isb        none
172.28.45.73    arproto2.ar.nis.isb.internal        isb        none
172.28.46.72    arproto2.ar.nis.vtc.internal        vtc        none
172.28.46.73    arproto1.ar.nis.vtc.internal        vtc        none

Having some nfs-ganesha weirdness on arproto2.ar.nis.vtc.internal, so I try to
move the address over to its pair so I can look around without impacting users.
However, seems like something insists on moving it right back 60 seconds
later...

Question 1: Is this expected behavior?
Question 2: If it is, what use is 'mmces address move' if it just gets
undone a few seconds later...

(running on arproto2.ar.nis.vtc.internal):

## (date; ip addr show | grep '\.72';mmces address move --ces-ip 172.28.46.72 --ces-node arproto1.ar.nis.vtc.internal;  while (/bin/true); do date; ip addr show | grep '\.72'; sleep 1; done;) | tee migrate.not.nailed.down
Mon Jun 12 15:34:33 EDT 2017
    inet 172.28.46.72/26 brd 172.28.46.127 scope global secondary bond1:0
Mon Jun 12 15:34:40 EDT 2017
Mon Jun 12 15:34:41 EDT 2017
Mon Jun 12 15:34:42 EDT 2017
Mon Jun 12 15:34:43 EDT 2017
(skipped)
Mon Jun 12 15:35:44 EDT 2017
Mon Jun 12 15:35:45 EDT 2017
    inet 172.28.46.72/26 brd 172.28.46.127 scope global secondary bond1:0
Mon Jun 12 15:35:46 EDT 2017
    inet 172.28.46.72/26 brd 172.28.46.127 scope global secondary bond1:0
Mon Jun 12 15:35:47 EDT 2017
    inet 172.28.46.72/26 brd 172.28.46.127 scope global secondary bond1:0
^C
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