I missed the other important log snip: The message "E [MSGID: 101075] [common-utils.c:520:gf_resolve_ip6] 0-resolver: error in getaddrinfo [{family=10}, {ret=Address family for hostname not supported}]" repeated 620 times between [2021-09-20 15:49:23.720633 +0000] and [2021-09-20 15:50:41.731542 +0000] So I will dig in to the code some here. On Mon, Sep 20, 2021 at 10:59:30AM -0500, Erik Jacobson wrote: > Hello all! I hope you are well. > > We are starting a new software release cycle and I am trying to find a > way to upgrade customers from our build of gluster 7.9 to our build of > gluster 9.3 > > When we deploy gluster, we foribly remove all references to any host > names and use only IP addresses. This is because, if for any reason a > DNS server is unreachable, even if the peer files have IPs and DNS, it > causes glusterd to be unable to reach peers properly. We can't really > rely on /etc/hosts either because customers take artistic licene with > their /etc/hosts files and don't realize that problems that can cause. > > So our deployed peer files look something like this: > > uuid=46a4b506-029d-4750-acfb-894501a88977 > state=3 > hostname1=172.23.0.16 > > That is, with full intention, we avoid host names. > > When we upgrade to gluster 9.3, we fall over with these errors and > gluster is now partitioned and the updated gluster servers can't reach > anybody: > > [2021-09-20 15:50:41.731543 +0000] E [name.c:265:af_inet_client_get_remote_sockaddr] 0-management: DNS resolution failed on host 172.23.0.16 > > > As you can see, we have defined on purpose everything using IPs but in > 9.3 it appears this method fails. Are there any suggestions short of > putting real host names in peer files? > > > > FYI > > This supercomputer will be using gluster for part of its system > management. It is how we deploy the Image Objects (squashfs images) > hosted on NFS today and served by gluster leader nodes and also store > system logs, console logs, and other data. > > https://www.olcf.ornl.gov/frontier/ > > > Erik > ________ > > > > Community Meeting Calendar: > > Schedule - > Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC > Bridge: https://meet.google.com/cpu-eiue-hvk > Gluster-users mailing list > Gluster-users@xxxxxxxxxxx > https://lists.gluster.org/mailman/listinfo/gluster-users ________ Community Meeting Calendar: Schedule - Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC Bridge: https://meet.google.com/cpu-eiue-hvk Gluster-users mailing list Gluster-users@xxxxxxxxxxx https://lists.gluster.org/mailman/listinfo/gluster-users