elastic_search_delete_empty_indexes.sh

elastic_search_delete_empty_indexes.sh

#!/bin/bash

# Based on https://discuss.elastic.co/t/finding-and-deleting-empty-indexes/172764
# Usage:
# elastic_search_delete_empty_indexes.sh servername:9200 #for dry run
# elastic_search_delete_empty_indexes.sh servername:9200 delete #to really delete

srv=""
delete=false

# Parameters check

if [ -z "$1" ]
then
    echo "Pass server name and port as a first parameter."
    exit
else
    srv="$1"
fi

if [ "$2" == "delete" ]; then
    echo "Deleting indexes."
    delete=true
else
    echo "Dry run. Pass delete as second parameter to delete for real."
fi

echo "Cleaning elastic $srv"

for idx in $(curl -XGET "http://$srv/_all/_settings" -s | jq 'keys' | sed 's/["|,]//g' | grep -E '[[:alpha:]]+'); do
    count=$(curl -X GET "http://$srv/$idx/_count" -s | jq '.count')
    if (( $count == 0 )); then
        echo "$(tput setaf 2)** Index $idx is empty ... delete it$(tput setaf 7)"
        if [ "$delete" == true ]; then
            curl -XDELETE "http://$srv/$idx"
            echo ""
        fi
    else
        echo "$(tput setaf 1)Count $idx -> $count$(tput setaf 7)"
    fi
done