On 25/11/2020 13:04, Ulrich Windl wrote:
Christine Caulfield <ccaul...@redhat.com> schrieb am 25.11.2020 um 10:17
in
Nachricht <56738406-9222-a9f3-c57c-e30400a0b...@redhat.com>:
On 25/11/2020 08:45, Ulrich Windl wrote:
Hi!
Setting up a cluster in SLES15 SP2, I wonder about a few log messages:
1) what does "QB" stand for?
2) When QB talks about "server", does it mean "service"?
Examples:
corosync[7982]: [QB ] server name: cmap
corosync[7982]: [QB ] server name: cfg
corosync[7982]: [QB ] server name: cpg
corosync[7982]: [QB ] server name: votequorum
corosync[7982]: [QB ] server name: quorum
3) what is "7982‑7987‑25" in "corosync[7982]: [QB ] Denied connection,
is
not ready (7982‑7987‑25)"?
2) "QB" is just how corosync tags messages that are issued by libqb ‑
which is the library that provides IPC services (mostly) to corosync
andothers. It's just logging the services that have been registered.
1) QB originally stood for "QuarterBack". I have no idea what that is
though I beleive it may be sport‑related. In the spec file for Fedora I
renamed it to "Quite Boring" as it's a library that provides basic
services ;‑)
3) That's just the unique name of the connection. it's made up of the
process PIDs and an incrementing number. The actual full IPC name in
/dev/shm has extra bits added on the end to stop them being guessable.
Thanks for confirming that it's all "Black Magic". ;-)
Pretty much all of clustering is :P
Chrissie
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