reload_cores.sh

#!/bin/bash

# Define Solr version
SOLR_VERSION="9.5.0"
SOLR_COLLECTION="testCreateWithDefaultConfigSet"
SOLR_ZK="localhost:14332/solr"


SOLR_DIR="solr-$SOLR_VERSION"

# Step 1: Check if Solr has already been downloaded and extracted
if [ -d "$SOLR_DIR" ]; then
    echo "Apache Solr $SOLR_VERSION is already downloaded and extracted."
else
    # Download Apache Solr 9.5.0
    echo "Downloading Apache Solr $SOLR_VERSION..."
    wget https://downloads.apache.org/solr/solr/$SOLR_VERSION/solr-$SOLR_VERSION.tgz -O solr-$SOLR_VERSION.tgz

    # Extract Solr
    echo "Extracting Solr..."
    mkdir $SOLR_DIR
    tar -xzf solr-$SOLR_VERSION.tgz -C $SOLR_DIR --strip-components=1
fi

# Step 3: Compile SolrCoreReloader.java using globbing for classpath
echo "Compiling SolrCoreReloader.java..."
javac -cp "./solr-$SOLR_VERSION/server/solr-webapp/webapp/WEB-INF/lib/*:./solr-$SOLR_VERSION/server/lib/ext/*" SolrCoreReloader.java

# Step 4: Run SolrCoreReloader
# Ensure to replace 'your_zookeeper_connection_string' with your actual ZooKeeper connection string
# Replace 'your_collection_name' with the name of the Solr collection you want to reload
echo "Running SolrCoreReloader..."
java -cp ".:./solr-$SOLR_VERSION/server/solr-webapp/webapp/WEB-INF/lib/*:./solr-$SOLR_VERSION/server/lib/ext/*" SolrCoreReloader $SOLR_ZK $SOLR_COLLECTION