Question #273969 on Graphite changed:
https://answers.launchpad.net/graphite/+question/273969
Status: Needs information => Answered
piotr proposed the following answer:
It could be that Graphite-web cannot read from carbon-cache, check if
your CARBONLINK_HOSTS exactly matches your carbon hosts as configured.
These must match literally (no mix of dns/ip) because the hash ring is
generated from those. Also check if your apache process can access those
ports, check selinux and iptables if you are using those.
I would not advise you to use NFS. From my experience this is really
slow. Storage performance is really important, you can have a really
powerful box but if your storage is slow on IOPS your performance will
be bad. Choose a storage with with high IOPS throughput, like a raid
array of direct attached SSD disk.
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