Common log store for multiple instances?

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chud
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Common log store for multiple instances?

Post by chud »

I have one Log Server, and we are getting ready to add a second one.
The first LS is using an NFS share on our Isilon to store logs.
When I spin up the second LS, can it also use that same store on the Isilon?
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cdienger
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Re: Common log store for multiple instances?

Post by cdienger »

Are these two instances being clustered? If so, they need to use the same store:

https://assets.nagios.com/downloads/nag ... enance.pdf
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chud
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Re: Common log store for multiple instances?

Post by chud »

cdienger wrote:Are these two instances being clustered? If so, they need to use the same store:

https://assets.nagios.com/downloads/nag ... enance.pdf
Yes, they will be in the same cluster.
Per that document, they need to use the same snapshot repository.
Can both servers also point their /usr/local/nagioslogserver/elasticsearch/data/ to the same store as well?
scottwilkerson
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Re: Common log store for multiple instances?

Post by scottwilkerson »

chud wrote:Can both servers also point their /usr/local/nagioslogserver/elasticsearch/data/ to the same store as well?
It could be the same store but would need to be a different path on the store.

One thing worth pointing out also is that by using the same storage device you still have a single point of failure, and if you lose the store, you would lose your whole clusters worth of data.
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chud
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Re: Common log store for multiple instances?

Post by chud »

Thanks.

One more question/scenario: just out of curiosity, could we build our own multi-node ElasticSearch cluster, and point our two Nagios Log Servers at it, say if it was behind haproxy and had a vip to use as an entry point? Is Nagios Log Server able to use external ElasticSearch?
scottwilkerson
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Re: Common log store for multiple instances?

Post by scottwilkerson »

chud wrote:Thanks.

One more question/scenario: just out of curiosity, could we build our own multi-node ElasticSearch cluster, and point our two Nagios Log Servers at it, say if it was behind haproxy and had a vip to use as an entry point? Is Nagios Log Server able to use external ElasticSearch?
This may be possible in addition to the built-in ES (not instead of) using custom outputs in the Logstash, but we would not be able to provide supported for this setup.
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chud
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Re: Common log store for multiple instances?

Post by chud »

Ok, thanks for the info.
You can close the thread.
scottwilkerson
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Re: Common log store for multiple instances?

Post by scottwilkerson »

chud wrote:Ok, thanks for the info.
You can close the thread.
Great!

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