You can query the Eleasticsearch API directly to get an overview of all
connected nodes.
For example, login to 192.168.1.100 and execute this: curl -XGET '
http://192.168.1.100:9200/_cluster/state/nodes?pretty'

You should see the Graylog server instance as one node + three real
Elasticsearch nodes. In total four.

Cheers,
Marius


On 27 July 2015 at 16:20, Graylog2 <[email protected]> wrote:

> Hi Marius,
>
> Thank you for your answer, much appreciated.
>
> I have 3 VMs now and I am just getting familiar with the product and
> different options to set it up.
>
> Ideally I will aim for 3 data nodes and one webserver.
>
> I understand that graylog2 does not support multi-tenant conenctions (
> limiting views of certain users for only specfic devices - does it ? )
>
> I am using OVA deployed three servers at the moment 100 is the main one
> cluster master and web server then 101 and 102 work as data nodes.
>
> I am not certain if 102 was taken into consideration by the cluster as I
> am not able to find command or option on the website that would show me
> that.
>
> I found overall status section which increased from yellow with 4 shards
> to : Elasticsearch cluster is green. Shards: 8 active, 0 initializing, 0
> relocating, 0 unassigned
>
> after adding a second node.
>
> Adding a third one had no affect on this section so how can I check if it
> was taken into the cluster setup ?
>
> In the uppermentioned log file (master of the cluster ) I can see that the
> server was added ok :
>
> 2015-07-27_14:18:01.36843 [2015-07-27 14:18:01,368][INFO ][cluster.service
>          ] [Lament] added
> {[Impala][Y44NXqJoSemY_CS-1PVfrw][graylog][inet[/192.168.1.102:9300]],},
> reason: zen-disco-receive(join from
> node[[Impala][Y44NXqJoSemY_CS-1PVfrw][graylog][inet[/192.168.1.102:9300
> ]]])
>
> So that seems ok.
>
> Am I missing anything ?
>
> Regards,
>
>
> On Monday, 27 July 2015 14:42:19 UTC+1, Marius Sturm wrote:
>>
>> Hi,
>> the 'list-servers' command returns only the Graylog server instances, so
>> one is ok in your setup. But Elasticsearch should start and run on the
>> datanodes. Could you check /var/log/graylog/elasticsearch/current for
>> errors?
>>
>> Which image do you use, OVA, Amazon, Openstack?
>>
>> Cheers,
>> Marius
>>
>>
>> On 27 July 2015 at 13:57, Graylog2 <[email protected]> wrote:
>>
>>> Hi all,
>>>
>>> I have a question about creating a cluster on 3 nodes using the virtual
>>> appliance
>>>
>>> I did spin 3 VMs with 192.168.1.100/101/102 IP addresses
>>>
>>> Run the first one with graylog-ctl reconfigure and the other two
>>> with graylog-ctl reconfigure-as-datanode
>>>
>>> When I try to run graylog-ctl list-servers I get only response from the
>>> master where it lists only itself not the other two.
>>>
>>> If I try to do it from any of the data nodes I get this error:
>>>
>>> Error:  501: All the given peers are not reachable (Tried to connect to
>>> each peer twice and failed) [0]
>>>
>>> I checked the graylog.conf (on master) and I can see this line there:
>>>
>>> elasticsearch_discovery_zen_ping_unicast_hosts = 192.168.1.100:9300,
>>> 192.168.1.101:9300,192.168.1.102:9300
>>>
>>> After installing nmap I cannot see anything lsitening on port 9300 on
>>> any of the VMs.
>>>
>>> Any idea what am I missing ?
>>>
>>> Thank you and regards.
>>>
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>>
>>
>>
>> --
>> Developer
>>
>> Tel.: +49 (0)40 609 452 077
>> Fax.: +49 (0)40 609 452 078
>>
>> TORCH GmbH - A Graylog Company
>> Steckelhörn 11
>> 20457 Hamburg
>> Germany
>>
>> https://www.graylog.com <https://www.torch.sh/>
>>
>> Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 125175
>> Geschäftsführer: Lennart Koopmann (CEO)
>>
>


-- 
Developer

Tel.: +49 (0)40 609 452 077
Fax.: +49 (0)40 609 452 078

TORCH GmbH - A Graylog Company
Steckelhörn 11
20457 Hamburg
Germany

https://www.graylog.com <https://www.torch.sh/>

Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 125175
Geschäftsführer: Lennart Koopmann (CEO)

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