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List:       gpfsug-discuss
Subject:    [gpfsug-discuss] CES: IP address won't assign:	"handleNetworkProblem with lock held"
From:       S.J.Thompson () bham ! ac ! uk (Simon Thompson (Research Computing - IT Services))
Date:       2016-10-17 18:57:15
Message-ID: CF45EE16DEF2FE4B9AA7FF2B6EE26545F583F6D7 () EX13 ! adf ! bham ! ac ! uk
[Download RAW message or body]


Does it strictly follow this?

We were doing some testing with tap interfaces into vxlan networks and found that if \
we simulated taking down the vxlan interface (which appears in ifconfig as a physical \
int really), then it moved the ces ip onto the box's primary Nic which was a \
different subnet.

Simon
________________________________________
From: gpfsug-discuss-bounces@spectrumscale.org [gpfsug-discuss-bounces at \
                spectrumscale.org] on behalf of Olaf Weiser [olaf.weiser at \
                de.ibm.com]
Sent: 17 October 2016 19:27
To: gpfsug main discussion list
Subject: Re: [gpfsug-discuss] CES: IP address won't assign:     "handleNetworkProblem \
with lock held"

simple question  -sorry for that - your Nodes.. do they have an IP address in the \
same subnet as your IP address listed here ? and if, is this network up n running so \
that GPFS can find/detect it ?

what tells mmlscluster --ces ?


from each node - assuming class C /24 network , do a
ip a | grep 10.30.22.





cheers




From:        "Oesterlin, Robert" <Robert.Oesterlin at nuance.com>
To:        gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date:        10/17/2016 08:00 AM
Subject:        [gpfsug-discuss] CES: IP address won't assign:        \
"handleNetworkProblem with lock held" Sent by:        gpfsug-discuss-bounces at \
spectrumscale.org ________________________________



Can anyone help me pinpoint the issue here? These message repeat and the IP addresses \
never get assigned.

[root at tct-gw01 ~]# tail /var/mmfs/gen/mmfslog
Mon Oct 17 10:57:55 EDT 2016: mmcesnetworkmonitor: Found unassigned address \
10.30.22.178 Mon Oct 17 10:57:55 EDT 2016: mmcesnetworkmonitor: Found unassigned \
address 10.30.22.179 Mon Oct 17 10:57:55 EDT 2016: mmcesnetworkmonitor: Found \
unassigned address 10.30.22.177 Mon Oct 17 10:57:55 EDT 2016: mmcesnetworkmonitor: \
Found unassigned address 10.30.22.176 Mon Oct 17 10:57:55 EDT 2016: \
mmcesnetworkmonitor: handleNetworkProblem with lock held: assignIP \
10.30.22.178_0-_+,10.30.22.179_0-_+,10.30.22.177_0-_+,10.30.22.176_0-_+ 1 Mon Oct 17 \
10:57:55 EDT 2016: mmcesnetworkmonitor: Assigning addresses: \
10.30.22.178_0-_+,10.30.22.179_0-_+,10.30.22.177_0-_+,10.30.22.176_0-_+ Mon Oct 17 \
10:57:55 EDT 2016: mmcesnetworkmonitor: moveCesIPs: \
10.30.22.178_0-_+,10.30.22.179_0-_+,10.30.22.177_0-_+,10.30.22.176_0-_+


[root at tct-gw01 ~]# mmces state show -a
NODE                                     AUTH          AUTH_OBJ      NETWORK       \
NFS           OBJ           SMB           CES tct-gw01.infra.us.grid.nuance.com       \
DISABLED      DISABLED      HEALTHY       HEALTHY       DISABLED      DISABLED      \
HEALTHY tct-gw02.infra.us.grid.nuance.com        DISABLED      DISABLED      HEALTHY  \
HEALTHY       DISABLED      DISABLED      HEALTHY tct-gw03.infra.us.grid.nuance.com   \
DISABLED      DISABLED      HEALTHY       HEALTHY       DISABLED      DISABLED      \
HEALTHY tct-gw04.infra.us.grid.nuance.com        DISABLED      DISABLED      HEALTHY  \
HEALTHY       DISABLED      DISABLED      HEALTHY [root at tct-gw01 ~]# mmces address \
list

Address         Node                                Group      Attribute
-------------------------------------------------------------------------
10.30.22.178    unassigned                          none       none
10.30.22.179    unassigned                          none       none
10.30.22.177    unassigned                          none       none
10.30.22.176    unassigned                          none       none


Bob Oesterlin
Sr Storage Engineer, Nuance HPC Grid
507-269-0413
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