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[docs] Add FAQ #1927
[docs] Add FAQ #1927
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docs/faqs/index.md
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# FAQs | |||
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- **Is there a way to disable M3DB embedded `etcd` and just use an external `etcd` cluster?** | |||
Yes, you can definitely do that. It's all just about setting the etcd endpoints in config as etcd hosts instead of M3DB hosts. |
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Link to how to set up external etcd cluster perhaps?
Refer to the [troubleshooting guide](../troubleshooting/index.md). | ||
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- **Do you support PromQL?** | ||
Yes, M3Query and M3Coordinator both support PromQL. |
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Shall we mention support for Graphite too?
docs/faqs/index.md
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Yes, M3Query and M3Coordinator both support PromQL. | ||
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- **Does M3DB store both data and (tag) metadata on the same node?** | ||
Yes it stores the data as well as the tags since it has an embedded index. Make sure you have `IndexEnabled` set to `true` in your namespace configuration |
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When you say data, maybe clarify with time series datapoints?
docs/faqs/index.md
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If you’re adding namespaces, the m3dbnode process will pickup the new namespace without a restart. | ||
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- **Do I need to restart M3DB if I change or delete a namespace?** | ||
If you’re removing or modifying an existing namespace, you’ll need to restart the m3dbnode process. It is recommended to restart one node at a time and wait for a node to be completely bootstrapped before restarting another node. |
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Hmm, that can technically continue on and keep using the cluster right? Maybe change wording to complete the namespace deletion process?
docs/faqs/index.md
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Refer to the [Aggregation section](../how_to/query) of the M3Query how-to guide. | ||
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- **How do I set up aggregation using a separate aggregation tier?** | ||
<Fill this in> |
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??
docs/faqs/index.md
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See the `Ticking` graph on [M3DB dashboard](https://grafana.com/dashboards/8126). | ||
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- **How much memory utilization should I run M3DB at?** | ||
We recommend not going above 40%. |
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Hmm, is that very aggressive? maybe 50%?
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Codecov Report
@@ Coverage Diff @@
## master #1927 +/- ##
=========================================
+ Coverage 59.9% 63.4% +3.4%
=========================================
Files 1085 1113 +28
Lines 102830 104790 +1960
=========================================
+ Hits 61677 66467 +4790
+ Misses 36906 34077 -2829
+ Partials 4247 4246 -1
Continue to review full report at Codecov.
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Left a couple of comments, but mostly LGTM.
docs/faqs/index.md
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See [M3DB openhttps://m3db.io/openapi | ||
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- **What is the recommended way to upgrade my M3 stack?** | ||
<Fill this in> |
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Can we change this to TBA?
docs/faqs/index.md
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We recommend not going above 50%. | ||
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- **What is the recommended hardware to run on?** | ||
<Fill this in> |
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Same here.
What this PR does / why we need it:
Fixes #
Special notes for your reviewer:
Does this PR introduce a user-facing and/or backwards incompatible change?:
Does this PR require updating code package or user-facing documentation?: