feat: Sample app for query stats feature #710
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rust/query-stats/README.md
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| This is currently only for use from within DFINITY, as the replica shipped with `dfx` as well as nodes on | ||
| mainnet do not enable the query stats feature at the moment. |
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If this is true this should not be in this repo
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This is currently true, but the canary rollout should start soon.
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| ## Issuing load | ||
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| We now want to generate queries at a certain rate. One way to achieve this is by using `ic-workload-generator`, which is part of the [IC repo](https://github.com/dfinity/ic/tree/master/rs/workload_generator). |
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Are there binaries available for downloading somewhere?
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No.
The workload generator is not strictly needed for this, but it's probably the easiest tool to get started.
What would you recommend instead? Should I recommend to run dfx calls in a bash loop instead?
| There is a delay until query stats show up in the canister status. Depending on the configuration, this | ||
| can reach from multiple minutes to an hour. |
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How does this behave on local? Is it easily testable there?
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Not currently, but as discussed offline, we should probably enable it in the dfx replica. I will talk to people to come up with a suggestion on how to do that.
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| # Query stats | |||
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| # Query stats | |
| # Query stats | |
| This example is about... |
Co-authored-by: Severin Siffert <[email protected]>
Co-authored-by: Severin Siffert <[email protected]>
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Dear @Dfinity-skaestle, In order to potentially merge your code in this open-source repository and therefore proceed with your contribution, we need to have your approval on DFINITY's CLA. If you decide to agree with it, please visit this issue and read the instructions there. Once you have signed it, re-trigger the workflow on this PR to see if your code can be merged. — The DFINITY Foundation |
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Overview
With query stats, developers gain insights into the use of query calls in their canister.
This has previously been difficult, since no state can be persisted when executing query calls.
This example shows how to use the canister status to gain access to query statistics.
It also shows how to use a timer to periodically query them and calculate rates for query metrics.