On Thu, Sep 19, 2019 at 12:19 PM Chen CH Ji jichenjc@cn.ibm.com wrote:
Hi stackers I have a 1 controller + 2 compute nodes settings, same configuration works fine on Ocata version but failed to run on Stein version , I am using
compute node1 and node 2 both use this backend and I can see only 1 compute services
[root@controller ~]# cinder service-list
+------------------+----------------+------+---------+-------+----------------------------+-----------------+ | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason |
+------------------+----------------+------+---------+-------+----------------------------+-----------------+ | cinder-scheduler | controller | nova | enabled | up | 2019-09-19T09:16:21.000000 | - | | cinder-volume | FC@POWERMAX_FC | nova | enabled | up | 2019-09-19T09:16:30.000000 | - |
+------------------+----------------+------+---------+-------+----------------------------+-----------------+
Hi,
The subject mentions cinder-volume A/A, but then you say you only have 1 controller node and there's only 1 scheduler and API service, so how is it running as A/A?
cinder.conf
[backend] backend_host=FC@POWERMAX_FC
and now I am creating 5 instances from nova at same time (boot from volume) , the scheduler will report those error time to time like following ,but actually the 2 services on both 2 compute nodes runs fine ..
2019-09-19 17:53:10.951 20916 WARNING cinder.scheduler.host_manager [req-19e722e8-1523-4121-8987-3cb450a8038e 071294a19fa8463788822565e0927fce f43175c07dc8415899d6b350dbede772 - default default] volume service is down. (host: FC@POWERMAX_FC)
You should check the cinder-volume logs to see the frequency of the stats reports, since slow stats reports will make the scheduler think the nodes are down.
If you had multiple controller nodes it could be out of sync clocks.
Cheers, Gorka.
those settings works fine on O and P version, so any doc / suggestion on how to configure A/A cinder volume on S version?
Ji Chen z Infrastructure as a Service architect Phone: 10-82451493 E-mail: jichenjc@cn.ibm.com