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Posted to commits@kafka.apache.org by gu...@apache.org on 2017/06/01 20:42:15 UTC
kafka git commit: MINOR: add upgrade not for
group.initial.rebalance.delay.ms
Repository: kafka
Updated Branches:
refs/heads/trunk e4d829c47 -> adb4ea74a
MINOR: add upgrade not for group.initial.rebalance.delay.ms
Add a new entry in upgrade.html for `group.initial.rebalance.delay.ms`
Author: Damian Guy <da...@gmail.com>
Reviewers: Ismael Juma <is...@juma.me.uk>, Guozhang Wang <wa...@gmail.com>
Closes #3189 from dguy/relabance-delay
Project: http://git-wip-us.apache.org/repos/asf/kafka/repo
Commit: http://git-wip-us.apache.org/repos/asf/kafka/commit/adb4ea74
Tree: http://git-wip-us.apache.org/repos/asf/kafka/tree/adb4ea74
Diff: http://git-wip-us.apache.org/repos/asf/kafka/diff/adb4ea74
Branch: refs/heads/trunk
Commit: adb4ea74ab55860e5a775151f317e923acac2ad4
Parents: e4d829c
Author: Damian Guy <da...@gmail.com>
Authored: Thu Jun 1 13:42:12 2017 -0700
Committer: Guozhang Wang <wa...@gmail.com>
Committed: Thu Jun 1 13:42:12 2017 -0700
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docs/upgrade.html | 6 ++++++
1 file changed, 6 insertions(+)
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http://git-wip-us.apache.org/repos/asf/kafka/blob/adb4ea74/docs/upgrade.html
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diff --git a/docs/upgrade.html b/docs/upgrade.html
index 2b62a2b..6487a62 100644
--- a/docs/upgrade.html
+++ b/docs/upgrade.html
@@ -70,6 +70,12 @@
<li>Added user headers support through a new Headers interface providing user headers read and write access.</li>
<li>ProducerRecord and ConsumerRecord expose the new Headers API via <code>Headers headers()</code> method call.</li>
<li>ExtendedSerializer and ExtendedDeserializer interfaces are introduced to support serialization and deserialization for headers. Headers will be ignored if the configured serializer and deserializer are not the above classes.</li>
+ <li>A new config,<code>group.initial.rebalance.delay.ms</code>, was introduced.
+ This config specifies the time, in milliseconds, that the <code>GroupCoordinator</code> will delay the initial consumer rebalance.
+ The rebalance will be further delayed by the value of <code>group.initial.rebalance.delay.ms</code> as new members join the group, up to a maximum of <code>max.poll.interval.ms</code>.
+ The default value for this is 3 seconds.
+ During development and testing it might be desirable to set this to 0 inorder to not delay test execution time.
+ </li>
</ul>
<h5><a id="upgrade_1100_new_protocols" href="#upgrade_1100_new_protocols">New Protocol Versions</a></h5>