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StorageGRID Appliance SG5700 reboots unexpectedly due to network isolation

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Applies to

  • NetApp StorageGRID 11.5 and later
  • NetApp StorageGRID Appliance SG5700

Issue

StorageGRID SG5700 node reboots by itself without any apparent reason.


In the node log (/var/log/storagegrid/nodes/<nodename>.log in base-os) the following can be observed:

[2021-06-14T12:36:14.818704]    INFO -- Possible network isolation: Node has no contact with other nodes. If this warning persists, use the /usr/sbin/add_node_ip.py command to tell this node the address of another node in the grid. See the Recovery and Maintenance Guide for details.
[2021-06-14T12:36:14.818919]    INFO -- 2021-06-14 12:36:14 +0000 | dynip                     | Possible network isolation: Node has no contact with other nodes.
[2021-06-14T12:36:30.821317]    INFO -- Node service caught SIGTERM
[2021-06-14T12:36:30.841484]    INFO -- Node service caught SIGTERM
[2021-06-14T12:36:30.841436]    WARN -- Got socket error 4 with message Interrupted system call

There should be a gap of at least 10 minutes between the first logged isolation event and  the reboot (SIGTERM).

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