[ClusterLabs] qdevice up and running -- but questions

[Jan Friesse]

> 
> 
> On 4/11/20 6:52 PM, Eric Robinson wrote:
>>  1. What command can I execute on the qdevice node which tells me which
>>     client nodes are connected and alive?
>>
> 
> i use
> corosync-qnetd-tool -v -l
> 
> 
>>  2. In the output of the pcs qdevice status command, what is the 
>> meaning of…
>>
>>          Vote:                   ACK (ACK)

This is documented in the corosync-qnetd-tool man page.

>>
>>  3. In the output of the  pcs quorum status Command, what is the 
>> meaning of…
>>
>> Membership information
>>
>> ----------------------
>>
>>      Nodeid      Votes    Qdevice Name
>>
>>           1          1    A,V,NMW 001db03a
>>
>>           2          1    A,V,NMW 001db03b (local)

Pcs just displays output of corosync-quorumtool. Nodeid and votes 
columns are probably obvious, name is resolved reverse dns name of the 
node ip addr (-i suppress this behavior) and qdevice column really needs 
to be documented, so:
A/NA - Qdevice is alive / not alive. This is rather internal flag, but 
it can be seen as a heartbeat between qdevice and corosync. Should be 
always alive.
V/NV - Qdevice has cast voted / not cast voted. Take is a an ACK/NACK.
MW/NMW - Master wins / not master wins. This is really internal flag. By 
default corosync-qdevice newer asks for master wins so it is going to be 
nmw. For more information what it means see 
votequorum_qdevice_master_wins (3)

Honza


>>
>> --Eric
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