Re: Did standby dashboards stop redirecting to the active one?

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Harry, can you please open a tracker issue at
https://tracker.ceph.com/projects/dashboard/issues/new with the following
details:

   - "ping" to the standby manager/s IP address. Let's see if they are
   reachable/routable from your end.
   - "ceph -s" to see if everything is ok.
   - "ceph mgr services" to get the URI of the active ceph-mgr
   - "netstat -anp | grep 8433" (please replace 8433 with the port you're
   using for Dashboard) in the standby managers to check if they're actually
   listening to it.
   - "curl -ki https://<standby-ceph-mgr>:8433" (same, please replace the
   port). If the curl doesn't work with a hostname, please retry with the
   corresponding IP address.
   - Check out the stand-by manager logs for any Error or "Traceback"
   message.

Thanks!

Kind Regards,
Ernesto


On Tue, Jul 27, 2021 at 12:25 AM Harry G. Coin <hgcoin@xxxxxxxxx> wrote:

>
> On 7/26/21 12:02 PM, Ernesto Puerta wrote:
>
> Hi Harry,
>
> No, that feature is still there. There's been a recent thread in this
> mailing list (please see "Pacific 16.2.5 Dashboard minor regression
> <https://lists.ceph.io/hyperkitty/list/ceph-users@xxxxxxx/thread/LWQKSRTO5HOAABFZDA26WGF3TL2JHLVI/>")
> about an unrelated change in cephadm that might impact this failover
> mechanism.
>
> What URL are you getting redirected to now? Are you using a reverse
> proxy/load balancer in front of the Dashboard
> <https://docs.ceph.com/en/latest/mgr/dashboard/#disable-the-redirection>
> (e.g.: HAProxy)?
>
> No redirection, nothing. Just timeout on every manager other than the
> active one.  Adding a HAproxy would be easily done, but seems redundant to
> ceph internal capability -- that at one time worked, anyhow.
>
>
>
>
> Kind Regards,
> Ernesto
>
>
> On Mon, Jul 26, 2021 at 4:06 PM Harry G. Coin <hgcoin@xxxxxxxxx> wrote:
>
>> Somewhere between Nautilus and Pacific the hosts running standby
>> managers, which previously would redirect browsers to the currently
>> active mgr/dashboard, seem to have stopped doing that.   Is that a
>> switch somewhere?  Or was I just happily using an undocumented feature?
>>
>> Thanks
>>
>> Harry Coin
>>
>>
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>>
>
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