Yes I can use 'hostPath/hostMount' and (I think) I understand what that
means and how to do so.
My point was that at this stage this is not such a big concern for me as
I'm trying to understand *how* to set up a HA environment as opposed to
actually needing to do so :-)
On 01/11/2017 19:54, Rich Megginson wrote:
On 11/01/2017 12:34 PM, Tim Dudgeon wrote:
Issue: https://github.com/openshift/openshift-docs/issues/6080
I'll stick with default ephemeral storage for now until the situation
becomes clearer.
You can't use hostPath/hostMount storage? I take "ephemeral" to mean
"private to the container that will go away when the pod/container
goes away" i.e. not persistent. You can use local disk storage to
achieve persistence without using NFS.
On 01/11/2017 17:21, Rich Megginson wrote:
On 11/01/2017 10:50 AM, Tim Dudgeon wrote:
I am confused over persistent storage for logging (elasticsearch).
The latest advanced installer docs [1] specifically describes how
to define using NFS for persistent storage, but the docs for
"aggregating container logs" [2] says that NFS should not be used
(except in one particular scenario) and seems to suggest that the
only really suitable scenario is to use a volume (disk) directly
mounted to each logging node.
Could someone clarify the situtation?
Elasticsearch says do not use NFS.
https://www.elastic.co/guide/en/elasticsearch/guide/2.x/indexing-performance.html#_storage
We should make that clear in the docs.
Please file a doc bug.
Tim
[1]
https://docs.openshift.org/latest/install_config/install/advanced_install.html#advanced-install-cluster-logging
[2]
https://docs.openshift.org/latest/install_config/aggregate_logging.html#aggregated-elasticsearch
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