Fixes https://github.com/apache/incubator-druid/issues/6321
Add a new metric (query/node/backpressure) that measures how much time the channel has spent in an unreadable state. **Note:** This is my first open source PR and this code may not be completely correct -- would really appreciate any inputs :) [ Full content available at: https://github.com/apache/incubator-druid/pull/6335 ] This message was relayed via gitbox.apache.org for [email protected]
