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Updates to clustering doc

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* Notes about routing/dns
* Mention upgrade testing
This commit is contained in:
Matthew Jones
2016-10-04 12:22:20 -04:00
parent 0b3833ced0
commit 4b57263adf
1 changed files with 6 additions and 0 deletions
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docs/clustering.md
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@@ -149,6 +149,11 @@ When verifying acceptance we should ensure the following statements are true
## Testing Considerations ## Testing Considerations
* Basic testing should be able to demonstrate parity with a standalone node for all integration testing. * Basic testing should be able to demonstrate parity with a standalone node for all integration testing.
* Basic playbook testing to verify routing differences, including:
- Basic FQDN
- Short-name name resolution
- ip addresses
- /etc/hosts static routing information
* We should test behavior of large and small clusters. I would envision small clusters as 2 - 3 nodes and large * We should test behavior of large and small clusters. I would envision small clusters as 2 - 3 nodes and large
clusters as 10 - 15 nodes clusters as 10 - 15 nodes
* Failure testing should involve killing single nodes and killing multiple nodes while the cluster is performing work. * Failure testing should involve killing single nodes and killing multiple nodes while the cluster is performing work.
@@ -162,6 +167,7 @@ When verifying acceptance we should ensure the following statements are true
- Break the link between nodes such that it forms 2 or more groups where groupA and groupB can't communicate but all nodes - Break the link between nodes such that it forms 2 or more groups where groupA and groupB can't communicate but all nodes
can communicate with the database. can communicate with the database.
* Crucially when network partitioning is resolved all nodes should recover into a consistent state * Crucially when network partitioning is resolved all nodes should recover into a consistent state
* Upgrade Testing, verify behavior before and after are the same for the end user.
## Performance Testing ## Performance Testing