HBASE-22490 (addendum) Nightly client integration test fails with hadoop-3

dev-support/Jenkinsfile

@@ -572,6 +572,7 @@ pipeline {
                   "hadoop-2/bin/hadoop" \
                   hadoop-2/share/hadoop/yarn/test/hadoop-yarn-server-tests-*-tests.jar \
                   hadoop-2/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-*-tests.jar \
+                  hadoop-2/bin/mapred \
                   >output-integration/hadoop-2.log 2>&1 ; then
                 echo "(x) {color:red}-1 client integration test{color}\n--Failed when running client tests on top of Hadoop 2. [see log for details|${BUILD_URL}/artifact/output-integration/hadoop-2.log]. (note that this means we didn't run on Hadoop 3)" >output-integration/commentfile
                 exit 2
@@ -590,6 +591,7 @@ pipeline {
                   hadoop-3/bin/hadoop \
                   hadoop-3/share/hadoop/yarn/test/hadoop-yarn-server-tests-*-tests.jar \
                   hadoop-3/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-*-tests.jar \
+                  hadoop-3/bin/mapred \
                   >output-integration/hadoop-3.log 2>&1 ; then
                 echo "(x) {color:red}-1 client integration test{color}\n--Failed when running client tests on top of Hadoop 3. [see log for details|${BUILD_URL}/artifact/output-integration/hadoop-3.log]. (note that this means we didn't check the Hadoop 3 shaded client)" >output-integration/commentfile
                 exit 2
@@ -604,6 +606,7 @@ pipeline {
                   hadoop-3/bin/hadoop \
                   hadoop-3/share/hadoop/yarn/test/hadoop-yarn-server-tests-*-tests.jar \
                   hadoop-3/share/hadoop/mapreduce/hadoop-mapreduce-client-jobclient-*-tests.jar \
+                  hadoop-3/bin/mapred \
                   >output-integration/hadoop-3-shaded.log 2>&1 ; then
                 echo "(x) {color:red}-1 client integration test{color}\n--Failed when running client tests on top of Hadoop 3 using Hadoop's shaded client. [see log for details|${BUILD_URL}/artifact/output-integration/hadoop-3-shaded.log]." >output-integration/commentfile
                 exit 2

dev-support/hbase_nightly_pseudo-distributed-test.sh

@@ -18,7 +18,7 @@
 
 set -e
 function usage {
-  echo "Usage: ${0} [options] /path/to/component/bin-install /path/to/hadoop/executable /path/to/hadoop/hadoop-yarn-server-tests-tests.jar /path/to/hadoop/hadoop-mapreduce-client-jobclient-tests.jar"
+  echo "Usage: ${0} [options] /path/to/component/bin-install /path/to/hadoop/executable /path/to/hadoop/hadoop-yarn-server-tests-tests.jar /path/to/hadoop/hadoop-mapreduce-client-jobclient-tests.jar /path/to/mapred/executable"
   echo ""
   echo "    --zookeeper-data /path/to/use                                     Where the embedded zookeeper instance should write its data."
   echo "                                                                      defaults to 'zk-data' in the working-dir."
@@ -33,7 +33,7 @@ function usage {
   exit 1
 }
 # if no args specified, show usage
-if [ $# -lt 4 ]; then
+if [ $# -lt 5 ]; then
   usage
 fi
 
@@ -62,19 +62,25 @@ do
 done
 
 # should still have where component checkout is.
-if [ $# -lt 4 ]; then
+if [ $# -lt 5 ]; then
   usage
 fi
 component_install="$(cd "$(dirname "$1")"; pwd)/$(basename "$1")"
 hadoop_exec="$(cd "$(dirname "$2")"; pwd)/$(basename "$2")"
 yarn_server_tests_test_jar="$(cd "$(dirname "$3")"; pwd)/$(basename "$3")"
 mapred_jobclient_test_jar="$(cd "$(dirname "$4")"; pwd)/$(basename "$4")"
+mapred_exec="$(cd "$(dirname "$5")"; pwd)/$(basename "$5")"
 
 if [ ! -x "${hadoop_exec}" ]; then
   echo "hadoop cli does not appear to be executable." >&2
   exit 1
 fi
 
+if [ ! -x "${mapred_exec}" ]; then
+  echo "mapred cli does not appear to be executable." >&2
+  exit 1
+fi
+
 if [ ! -d "${component_install}" ]; then
   echo "Path to HBase binary install should be a directory." >&2
   exit 1
@@ -276,7 +282,12 @@ trap cleanup EXIT SIGQUIT
 
 echo "Starting up Hadoop"
 
-HADOOP_CLASSPATH="${yarn_server_tests_test_jar}" "${hadoop_exec}" jar "${mapred_jobclient_test_jar}" minicluster -format -writeConfig "${working_dir}/hbase-conf/core-site.xml" -writeDetails "${working_dir}/hadoop_cluster_info.json" >"${working_dir}/hadoop_cluster_command.out" 2>"${working_dir}/hadoop_cluster_command.err" &
+if [ "${hadoop_version%.*.*}" -gt 2 ]; then
+  "${mapred_exec}" minicluster -format -writeConfig "${working_dir}/hbase-conf/core-site.xml" -writeDetails "${working_dir}/hadoop_cluster_info.json" >"${working_dir}/hadoop_cluster_command.out" 2>"${working_dir}/hadoop_cluster_command.err" &
+else
+  HADOOP_CLASSPATH="${yarn_server_tests_test_jar}" "${hadoop_exec}" jar "${mapred_jobclient_test_jar}" minicluster -format -writeConfig "${working_dir}/hbase-conf/core-site.xml" -writeDetails "${working_dir}/hadoop_cluster_info.json" >"${working_dir}/hadoop_cluster_command.out" 2>"${working_dir}/hadoop_cluster_command.err" &
+fi
+
 echo "$!" > "${working_dir}/hadoop.pid"
 
 sleep_time=2