Backup Elasticsearch node

backup.sh

# Script to be placed in elasticsearch/bin
# Launch it from elasticsearch dir
# bin/backup indexname
# We suppose that data are under elasticsearch/data
# It will create a backup file under elasticsearch/backup

if [ -z "$1" ]; then
  INDEX_NAME="dummy"
else
  INDEX_NAME=$1
fi

# Optimize index
curl -XPOST http://localhost:9200/$INDEX_NAME/_optimize

# Flush index
curl -XPOST http://localhost:9200/$INDEX_NAME/_flush

# Close index
curl -XPOST http://localhost:9200/$INDEX_NAME/_close

# Backup you data dir
mkdir backup
tar zcf backup/$INDEX_NAME.tar.gz data/elasticsearch/nodes/*/indices/$INDEX_NAME/

# Then reopen index
curl -XPOST http://localhost:9200/$INDEX_NAME/_open