HDDS-2271. Avoid buffer copying in KeyValueHandler.

[szetszwo]

See https://issues.apache.org/jira/browse/HDDS-2271

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
0	reexec	38	Docker mode activated.
		_ Prechecks _
+1	dupname	0	No case conflicting files found.
+1	@author	0	The patch does not contain any @author tags.
-1	test4tests	0	The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
		_ trunk Compile Tests _
0	mvndep	30	Maven dependency ordering for branch
-1	mvninstall	36	hadoop-hdds in trunk failed.
-1	mvninstall	43	hadoop-ozone in trunk failed.
-1	compile	24	hadoop-hdds in trunk failed.
-1	compile	15	hadoop-ozone in trunk failed.
+1	checkstyle	63	trunk passed
+1	mvnsite	0	trunk passed
+1	shadedclient	1100	branch has no errors when building and testing our client artifacts.
-1	javadoc	21	hadoop-hdds in trunk failed.
-1	javadoc	18	hadoop-ozone in trunk failed.
0	spotbugs	1207	Used deprecated FindBugs config; considering switching to SpotBugs.
-1	findbugs	42	hadoop-hdds in trunk failed.
-1	findbugs	21	hadoop-ozone in trunk failed.
		_ Patch Compile Tests _
0	mvndep	21	Maven dependency ordering for patch
-1	mvninstall	41	hadoop-hdds in the patch failed.
-1	mvninstall	38	hadoop-ozone in the patch failed.
-1	compile	27	hadoop-hdds in the patch failed.
-1	compile	19	hadoop-ozone in the patch failed.
-1	javac	27	hadoop-hdds in the patch failed.
-1	javac	19	hadoop-ozone in the patch failed.
+1	checkstyle	60	the patch passed
+1	mvnsite	0	the patch passed
+1	whitespace	0	The patch has no whitespace issues.
+1	shadedclient	906	patch has no errors when building and testing our client artifacts.
-1	javadoc	23	hadoop-hdds in the patch failed.
-1	javadoc	19	hadoop-ozone in the patch failed.
-1	findbugs	37	hadoop-hdds in the patch failed.
-1	findbugs	22	hadoop-ozone in the patch failed.
		_ Other Tests _
-1	unit	31	hadoop-hdds in the patch failed.
-1	unit	28	hadoop-ozone in the patch failed.
+1	asflicense	36	The patch does not generate ASF License warnings.
		2895

Subsystem	Report/Notes
Docker	Client=19.03.3 Server=19.03.3 base: https://builds.apache.org/job/hadoop-multibranch/job/PR-1625/1/artifact/out/Dockerfile
GITHUB PR	#1625
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle
uname	Linux 0f04dd4fe3d0 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	personality/hadoop.sh
git revision	trunk / 1d27930
Default Java	1.8.0_222
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Max. process+thread count	306 (vs. ulimit of 5500)
modules	C: hadoop-hdds/common hadoop-hdds/container-service U: hadoop-hdds
Console output	https://builds.apache.org/job/hadoop-multibranch/job/PR-1625/1/console
versions	git=2.7.4 maven=3.3.9
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This message was automatically generated.

[elek]

Thank you very much to open this pull request.

During the weekend the Ozone source code has been moved out from apache/hadoop repository to apache/hadoop-ozone repository.

This git commits are rewritten, but the branch of this pull request is also transformed (state of Saturday morning), you can use the new, migrated branch to recreate this pull request.

Your pull request is important for us: Can you please re-create your pull request in the new repository?

1. Create a new fork of https://github.com/apache/hadoop-ozone

2. Clone it and have both your fork and the apache repo as remotes:

git clone git@github.com:szetszwo/hadoop-ozone.git
cd hadoop-ozone
git remote add apache git@github.com:apache/hadoop-ozone.git
git fetch apache

3. Fetch your migrated branch and push it to your fork.

git checkout -b HDDS-2271 apache/HDDS-2271
git push origin HDDS-2271

4. And create the new pull request on the new repository.

https://github.com/apache/hadoop-ozone/compare/master...szetszwo:HDDS-2271?expand=1

If you need more information, please check this wiki page or contact with me (my github user name + apache.org).

Thank you, and sorry for the inconvenience.

[szetszwo]

This was migrated to apache/ozone#44