GitHub user ijuma opened a pull request:
https://github.com/apache/kafka/pull/4152
MINOR: Eliminate unnecessary Topic(And)Partition allocations in Controller
- Eliminated all the unnecessary allocations of `TopicPartition` and
`TopicAndPartition` in the Controller. We now use the former
in the Controller (bringing it inline with the rest of the non legacy
code).
- Fixed missed `Listener` -> `Handler` renames for companion
objects.
- More String.format -> String interpolation conversions (the former
is roughly 5 times more expensive).
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ijuma/kafka
controller-topic-partition-and-other-clean-ups
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/kafka/pull/4152.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4152
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commit 109dc13dbbf2ef3ae8c1d4857cc30c059295b4b8
Author: Ismael Juma <ism...@juma.me.uk>
Date: 2017-10-27T10:25:34Z
Use TopicPartition in Controller and avoid allocations
commit 4d04e0c69c17d3c9dd16e901d54e158c76962087
Author: Ismael Juma <ism...@juma.me.uk>
Date: 2017-10-28T08:04:23Z
Missed `Listener` -> `Handler` renames in companion objects
commit a259462c921454a129471a019700f44f16c33ab1
Author: Ismael Juma <ism...@juma.me.uk>
Date: 2017-10-28T08:33:43Z
Various log clean-ups
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