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From rsiva...@apache.org
Subject kafka git commit: KAFKA-5738; Upgrade note for cumulative count metric (KIP-187)
Date Wed, 04 Oct 2017 14:53:29 GMT
Repository: kafka
Updated Branches:
  refs/heads/trunk a202da742 -> c4b8a7eab


KAFKA-5738; Upgrade note for cumulative count metric (KIP-187)

Author: Rajini Sivaram <rajinisivaram@googlemail.com>

Reviewers: Ismael Juma <ismael@juma.me.uk>

Closes #4014 from rajinisivaram/MINOR-upgrade-KIP-187


Project: http://git-wip-us.apache.org/repos/asf/kafka/repo
Commit: http://git-wip-us.apache.org/repos/asf/kafka/commit/c4b8a7ea
Tree: http://git-wip-us.apache.org/repos/asf/kafka/tree/c4b8a7ea
Diff: http://git-wip-us.apache.org/repos/asf/kafka/diff/c4b8a7ea

Branch: refs/heads/trunk
Commit: c4b8a7eab4e0bf387efba02986d5b9d1bf914038
Parents: a202da7
Author: Rajini Sivaram <rajinisivaram@googlemail.com>
Authored: Wed Oct 4 10:53:18 2017 -0400
Committer: Rajini Sivaram <rajinisivaram@googlemail.com>
Committed: Wed Oct 4 10:53:18 2017 -0400

----------------------------------------------------------------------
 docs/upgrade.html | 3 +++
 1 file changed, 3 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/kafka/blob/c4b8a7ea/docs/upgrade.html
----------------------------------------------------------------------
diff --git a/docs/upgrade.html b/docs/upgrade.html
index fbf47d6..b784402 100644
--- a/docs/upgrade.html
+++ b/docs/upgrade.html
@@ -76,6 +76,9 @@
         will return <code>0.0</code> in such cases to minimise the probability
of breaking users who read the value of every client
         metric (via a <code>MetricsReporter</code> implementation or by calling
the <code>metrics()</code> method).
         <code>org.apache.kafka.common.Metric#metricValue()</code> can be used
to retrieve numeric and non-numeric metric values.</li>
+    <li>Every Kafka rate metric now has a corresponding cumulative count metric with
the suffix <code>-total</code>
+        to simplify downstream processing. For example, <code>records-consumed-rate</code>
has a corresponding
+        metric named <code>records-consumed-total</code>.</li>
     <li>Mx4j will only be enabled if the system property <code>kafka_mx4jenable</code>
is set to <code>true</code>. Due to a logic
         inversion bug, it was previously enabled by default and disabled if <code>kafka_mx4jenable</code>
was set to <code>true</code>.</li>
 </ul>


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