[GitHub] gianm commented on a change in pull request #6405: Added backpressure metric to docs and defaultMetricDimensions

[GitBox <gi...@apache.org>]

gianm commented on a change in pull request #6405: Added backpressure metric to docs and defaultMetricDimensions
URL: https://github.com/apache/incubator-druid/pull/6405#discussion_r221442926
 
 

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 File path: docs/content/operations/metrics.md
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 @@ -33,6 +33,7 @@ Available Metrics
 |`query/node/time`|Milliseconds taken to query individual historical/realtime nodes.|id, status, server.|< 1s|
 |`query/node/bytes`|number of bytes returned from querying individual historical/realtime nodes.|id, status, server.| |
 |`query/node/ttfb`|Time to first byte. Milliseconds elapsed until broker starts receiving the response from individual historical/realtime nodes.|id, status, server.|< 1s|
+|`query/node/backpressure`|Milliseconds channel has spent in an unreadable state.|id, status, server.| |
 
 Review comment:
   Suggested alternate wording that would be clearer:
   
   > Milliseconds that the channel to this node has spent suspended due to backpressure.

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