Cherry-pick #13426 to 6.8: Fix panic in Redis key metricset #13438
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If a key is removed during a fetch, `FetchKeyInfo` returns a nil object, this nil object should be ignored, if passed to `eventMapping` it panics. (cherry picked from commit 99ded55)
kaiyan-sheng
approved these changes
Aug 30, 2019
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Cherry-pick of PR #13426 to 6.8 branch. Original message:
If a key is removed during a fetch,
FetchKeyInforeturns a nil object,this nil object should be ignored, if passed to
eventMappingitpanics.
Reported in https://discuss.elastic.co/t/panic-in-redis-module/197253