TEZ-4329. Import external tez component em-table

[jteagles]

Co-authored-by: Sreenath Somarajapuram [email protected]

[tez-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Comment
+0 🆗	reexec	12m 38s	Docker mode activated.
		_ Prechecks _
+1 💚	dupname	0m 0s	No case conflicting files found.
+1 💚	@author	0m 0s	The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s	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.
		_ master Compile Tests _
+1 💚	mvninstall	15m 29s	master passed
+1 💚	javadoc	0m 47s	master passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
+1 💚	javadoc	0m 20s	master passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
		_ Patch Compile Tests _
+1 💚	mvninstall	1m 30s	the patch passed
+1 💚	jshint	39m 52s	There were no new jshint issues.
+1 💚	whitespace	0m 0s	The patch has no whitespace issues.
+1 💚	javadoc	0m 18s	the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
+1 💚	javadoc	0m 22s	the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
		_ Other Tests _
+1 💚	unit	2m 29s	tez-ui in the patch passed.
+1 💚	asflicense	0m 27s	The patch does not generate ASF License warnings.
		75m 15s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-146/1/artifact/out/Dockerfile
GITHUB PR	#146
Optional Tests	dupname asflicense javac javadoc unit jshint
uname	Linux 3e7f0724518d 4.15.0-136-generic #140-Ubuntu SMP Thu Jan 28 05:20:47 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	personality/tez.sh
git revision	master / e2c4ee0
Default Java	Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
Test Results	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-146/1/testReport/
Max. process+thread count	93 (vs. ulimit of 5500)
modules	C: tez-ui U: tez-ui
Console output	https://ci-hadoop.apache.org/job/tez-multibranch/job/PR-146/1/console
versions	git=2.25.1 maven=3.6.3 jshint=2.12.0
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[abstractdog]

patch looks very similar to em-helpers import, LGTM
+1

[abstractdog]

1 minor thing before merging, please take a look at this comment: #147 (comment)