#!/bin/bash
set -e
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk
export HIVE_HOME=/opt/hive
# Bigtop hadoop: pick a HADOOP_HOME that contains bin/hadoop
if [ -x /usr/lib/hadoop/bin/hadoop ]; then export HADOOP_HOME=/usr/lib/hadoop; else export HADOOP_HOME=/usr; fi
export HADOOP_CONF_DIR=/etc/hadoop/conf
export PATH=$JAVA_HOME/bin:$HIVE_HOME/bin:$PATH
echo "JAVA_HOME=$JAVA_HOME  HADOOP_HOME=$HADOOP_HOME"

echo "=== guava fix ==="
rm -f /opt/hive/lib/guava-19.0.jar
cp -f /usr/lib/hadoop/lib/guava-27.0-jre.jar /opt/hive/lib/ 2>/dev/null || cp -f /usr/lib/hadoop/client/guava-27.0-jre.jar /opt/hive/lib/
ls /opt/hive/lib/guava-*.jar

echo "=== hive-site.xml ==="
cat > /opt/hive/conf/hive-site.xml <<'XML'
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
  <property><name>javax.jdo.option.ConnectionURL</name><value>jdbc:derby:;databaseName=/opt/hive/metastore_db;create=true</value></property>
  <property><name>javax.jdo.option.ConnectionDriverName</name><value>org.apache.derby.jdbc.EmbeddedDriver</value></property>
  <property><name>hive.metastore.warehouse.dir</name><value>/user/hive/warehouse</value></property>
  <property><name>hive.execution.engine</name><value>mr</value></property>
  <property><name>mapreduce.framework.name</name><value>local</value></property>
  <property><name>hive.exec.mode.local.auto</name><value>true</value></property>
  <property><name>hive.exec.submitviachild</name><value>false</value></property>
  <property><name>hive.metastore.schema.verification</name><value>false</value></property>
  <property><name>datanucleus.schema.autoCreateAll</name><value>true</value></property>
  <property><name>hive.server2.enable.doAs</name><value>false</value></property>
  <property><name>hive.stats.autogather</name><value>false</value></property>
  <property><name>hive.metastore.event.db.notification.api.auth</name><value>false</value></property>
</configuration>
XML

cat > /opt/hive/conf/hive-env.sh <<ENV
export JAVA_HOME=$JAVA_HOME
export HADOOP_HOME=$HADOOP_HOME
export HADOOP_CONF_DIR=$HADOOP_CONF_DIR
export HIVE_HOME=$HIVE_HOME
ENV

# reusable wrapper for running hive non-interactively
cat > /opt/hive/runhive.sh <<WRAP
#!/bin/bash
export JAVA_HOME=$JAVA_HOME
export HIVE_HOME=$HIVE_HOME
export HADOOP_HOME=$HADOOP_HOME
export HADOOP_CONF_DIR=$HADOOP_CONF_DIR
export HADOOP_CLIENT_OPTS="-Xmx2g \$HADOOP_CLIENT_OPTS"
export PATH=\$JAVA_HOME/bin:\$HIVE_HOME/bin:\$PATH
exec hive "\$@"
WRAP
chmod +x /opt/hive/runhive.sh

echo "=== init derby metastore schema ==="
rm -rf /opt/hive/metastore_db
cd /opt/hive
$HIVE_HOME/bin/schematool -dbType derby -initSchema >/tmp/schematool.log 2>&1 && echo "schema init OK" || { echo "schema init FAILED"; tail -25 /tmp/schematool.log; exit 1; }