HDFS - YARN - InfraSolr: ZK Client when using custom zookeeper principal
Current on version HDP-2.6.x - Ambari-2.5.x if the zookeeper principal name is changed or customized manual changes are required for HDFS, Yarn and Ambari-Infra.
In Ambari - config - for yarn and HDFS: yarn-env.sh
YARN_OPTS="-Dzookeeper.sasl.client=true -Dzookeeper.sasl.client.username=sand-box-zookeeper -Djava.security.auth.login.config=/etc/hadoop/2.6.0.3-8/0/yarn_jaas.conf -Dzookeeper.sasl.clientconfig=Client $YARN_OPTS"
hadoop/conf/hadoop-env.sh
export HADOOP_ZKFC_OPTS="-Dzookeeper.sasl.client=true -Dzookeeper.sasl.client.username=sandbox-zookeeper -Djava.security.auth.login.config=/usr/hdp/current/hadoop-client/conf/secure/hdfs_jaas.conf -Dzookeeper.sasl.clientconfig=Client $HADOOP_ZKFC_OPTS"
PATH=$JAVA_HOME/bin:$PATH $JVM -classpath "$sdir:$sdir/libs/*" -Dzookeeper.sasl.client.username=sandbox-zookeeper org.apache.ambari.logsearch.solr.AmbariSolrCloudCLI ${1+"$@"}
#add lines below to bottom of script
ADDITIONAL_CMD_OPTS="$ADDITIONAL_CMD_OPTS -Dzookeeper.sasl.client.username=hcedhp02-zookeeper"
launch_solr "$FG" "$ADDITIONAL_CMD_OPTS"
These services will now restart correctly and use your custom zookeeper principal name for the client connection.

