Loki-Canary: Add query spot checking and metric count checking #2344
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… to make sure they are still in Loki. Add a context timeout to Loki queries
adding a metric test query
…y has been running to get accurate results until the requested range has been reached. Add a total spot check entry counter to get a ratio of success
cyriltovena
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Jul 13, 2020
cyriltovena
reviewed
Jul 13, 2020
cyriltovena
reviewed
Jul 13, 2020
Codecov Report
@@ Coverage Diff @@
## master #2344 +/- ##
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+ Coverage 61.50% 61.57% +0.06%
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Files 160 160
Lines 13422 13519 +97
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+ Hits 8255 8324 +69
- Misses 4546 4570 +24
- Partials 621 625 +4
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* Saner defaults for configs Signed-off-by: Goutham Veeramachaneni <[email protected]> * Set spread_flushes to true in the code. Signed-off-by: Tom Wilkie <[email protected]> * Make mockIngester implement HealthCheck and io.Closer so tests pass. Signed-off-by: Tom Wilkie <[email protected]> * Address feedback Signed-off-by: Goutham Veeramachaneni <[email protected]> * Verify that querier sees correct ring before using it. Signed-off-by: Peter Štibraný <[email protected]> * Address feedback Signed-off-by: Goutham Veeramachaneni <[email protected]> Co-authored-by: Tom Wilkie <[email protected]> Co-authored-by: Peter Štibraný <[email protected]>
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The current canary implementation has been expanded to take a sample of entries created and query for them over time at a regular interval.
This should better exercise querying data as it moves from inmemory in ingesters to chunk storage to make sure data is consistently returned.
Additionally a metric query is run to count the logs over a period of time, this is helpful to exercise the Loki metrics query path as well as another sanity check that log data is being stored and retrieved properly.