Re: cluster is not stable

[Zhenshi Zhou <deaderzzs@xxxxxxxxx>]

Hi Kevin,

I'm sure the firewalld are disabled on each host.

Well, the network is not a problem. The servers are connected 

to the same switch and the connection is good when the osds 

are marked as down. There was no interruption or delay.

I restart the leader monitor daemon and it seems return to the 

normal state. 

Thanks.

Kevin Olbrich <ko@xxxxxxx> 于2019年3月12日周二 下午5:44写道：

Are you sure that firewalld is stopped and disabled?

Looks exactly like that when I missed one host in a test cluster.

Kevin

Am Di., 12. März 2019 um 09:31 Uhr schrieb Zhenshi Zhou <deaderzzs@xxxxxxxxx>:

Hi,

I deployed a ceph cluster with good performance. But the logs 

indicate that the cluster is not as stable as I think it should be.

The log shows the monitors mark some osd as down periodly:

I didn't find any useful information in osd logs.

ceph version 13.2.4 mimic (stable)

OS version CentOS 7.6.1810

kernel version 5.0.0-2.el7

Thanks.

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