reindex elasticsearch indices

reindex1.sh

#!/bin/bash

if [ "$1" == "" ] || [ "$2" == "" ]; then
  echo "Usage: ./reindex.sh [REMOTE_HOST:REMOTE_PORT] [INDEX_PATTERN] [LOCAL_HOST:LOCAL_PORT]"
  exit 1
fi

REMOTE_HOST=$1
PATTERN=$2
if [ "$3" == "" ]; then
  LOCAL_HOST="localhost:9200"
else
  LOCAL_HOST=$3
fi

echo "---------------------------- NOTICE ----------------------------------"
echo "You must ensur you have the following setting in your local ES host's:"
echo "elasticsearch.yml config (the one re-indexing to):"
echo "    reindex.remote.whitelist: $REMOTE_HOST"
echo "Also, if an index template is necessary for this data, you must create"
echo "locally before you start the re-indexing process"
echo "----------------------------------------------------------------------"
sleep 3

INDICES=$(curl --silent "$REMOTE_HOST/_cat/indices/$PATTERN?h=index")
TOTAL_INCOMPLETE_INDICES=0
TOTAL_INDICES=0
TOTAL_DURATION=0
INCOMPLETE_INDICES=()

for INDEX in $INDICES; do

  TOTAL_DOCS_REMOTE=$(curl --silent "http://$REMOTE_HOST/_cat/indices/$INDEX?h=docs.count")
  echo "Attempting to re-indexing $INDEX ($TOTAL_DOCS_REMOTE docs total) from remote ES server..."
  SECONDS=0
  curl -XPOST "http://$LOCAL_HOST/_reindex?wait_for_completion=true&pretty=true" -d "{
    \"conflicts\": \"proceed\",
    \"source\": {
      \"remote\": {
        \"host\": \"http://$REMOTE_HOST\"
      },
      \"index\": \"${INDEX}\"
    },
    \"dest\": {
      \"index\": \"${INDEX}\"
    }
  }"

  duration=$SECONDS

  LOCAL_INDEX_EXISTS=$(curl -o /dev/null --silent --head --write-out '%{http_code}' "http://$LOCAL_HOST/$INDEX")
  if [ "$LOCAL_INDEX_EXISTS" == "200" ]; then
    TOTAL_DOCS_REINDEXED=$(curl --silent "http://$LOCAL_HOST/_cat/indices/$INDEX?h=docs.count")
  else
    TOTAL_DOCS_REINDEXED=0
  fi

  echo "    Re-indexing results:"
  echo "     -> Time taken: $(($duration / 60)) minutes and $(($duration % 60)) seconds"
  echo "     -> Docs indexed: $TOTAL_DOCS_REINDEXED out of $TOTAL_DOCS_REMOTE"
  echo ""

  TOTAL_DURATION=$(($TOTAL_DURATION+$duration))

  if [ "$TOTAL_DOCS_REMOTE" -ne "$TOTAL_DOCS_REINDEXED" ]; then
    TOTAL_INCOMPLETE_INDICES=$(($TOTAL_INCOMPLETE_INDICES+1))
    INCOMPLETE_INDICES+=($INDEX)
  fi

  TOTAL_INDICES=$((TOTAL_INDICES+1))

done

echo "---------------------- STATS --------------------------"
echo "Total Duration of Re-Indexing Process: $((TOTAL_DURATION / 60))m $((TOTAL_DURATION % 60))"
echo "Total Indices: $TOTAL_INDICES"
echo "Total Incomplete Re-Indexed Indices: $TOTAL_INCOMPLETE_INDICES"
if [ "$TOTAL_INCOMPLETE_INDICES" -ne "0" ]; then
  printf '%s\n' "${INCOMPLETE_INDICES[@]}"
fi
echo "-------------------------------------------------------"
echo ""

reindex2.sh

#!/bin/bash

#ES_HOST="localhost"
#ES_PORT="9200"
TMP="_v2"
echo "****  Script Execution Started ****"
echo " "
echo "**** Fetching List of Indices Elasticsearch Reindexing ****"
curl -s -X GET 'http://localhost:9200/_cat/indices/%2A?v=&s=index:desc' 

echo " "
sleep 5

indices_list=$(curl -s -X GET 'http://localhost:9200/_cat/indices/%2A?v=&s=index:desc' | awk '{print $3}' | sed -n '1!p')
#indices=$(curl -s "http://${ES_HOST}:${ES_PORT}/_cat/indices/abc_*?h=index" | egrep 'abc_[0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{8}*')

# do for all abc elastic indices
count=0
echo "$indices_list"
for index in $indices_list
do
    echo " "
    echo "**** Index No: $count ****"
    echo "**** Present Index we are iterating:  ${index} ****"
    count=`expr $count + 1`
    echo " "
    echo " "
    echo "Reindex process starting for index: $index"
    tmp_index=$index${TMP}
    output=$(curl -s -X PUT "http://localhost:9200/$tmp_index" -H 'Content-Type: application/json' -d'
    {
        "settings" : {
            "index" : {
                "number_of_shards" : 5,
                "number_of_replicas" : 1
            }
        }
    }')
    echo " "
    echo "Temporary index: $tmp_index created with output: $output"
    echo "Starting reindexing elastic data from original index: $index to temporary index: $tmp_index"
    output=$(curl -s -X POST "http://localhost:9200/_reindex" -H 'Content-Type: application/json' -d'
    {
      "source": {
        "index": "'$index'"
      },
      "dest": {
        "index": "'$tmp_index'"
      }
    }
    ')
    echo " "
    echo "Reindexing completed from original index: $index to temporary index: $tmp_index with output: $output"
    echo " "
    echo "Deleting $index"
    output=$(curl -s -X DELETE "http://localhost:9200/$index")
    echo "$index deleted with status: $output"
    echo " "
    echo "Creating index: $index"
    output=$(curl -s -X PUT "http://localhost:9200/$index" -H 'Content-Type: application/json' -d'
    {
        "settings" : {
            "index" : {
                "number_of_shards" : 5,
                "number_of_replicas" : 1
            }
        }
    }')
    echo " "
    echo "Index: $index creation status: $output"
    echo " "
    echo "Starting reindexing elastic data from temporary index: $tmp_index to original index: $index"
    output=$(curl -s -X POST "http://localhost:9200/_reindex" -H 'Content-Type: application/json' -d'
    {
      "source": {
        "index": "'$tmp_index'"
      },
      "dest": {
        "index": "'$index'"
      }
    }
    ')
    echo " "
    echo "Reindexing completed from temporary index:$tmp_index to original index:$index with output: $output"
    echo " "
    echo "Deleting $tmp_index"
    output=$(curl -s -X DELETE "http://localhost:9200/$tmp_index")
    echo "$tmp_index deleted with status: $output"
    echo " "
done

echo " "
sleep 5
echo "**** Fetching List of Indices After Elasticsearch Reindexing ****"
curl -s -X GET 'http://localhost:9200/_cat/indices/%2A?v=&s=index:desc' 
echo " "
sleep 5
echo " "
echo "**** Original indices list ****"
echo "$indices_list"
echo "**** No. of indices in original list: $count ****"
echo " "
count1=0
MIndices_list=$(curl -s -X GET 'http://localhost:9200/_cat/indices/%2A?v=&s=index:desc' | awk '{print $3}' | sed -n '1!p')
echo " "
echo "**** Modified indices list ****"
echo "$MIndices_list"
for j in $MIndices_list
do
     count1=`expr $count1 + 1`
done
echo " "
echo "**** No. of indices in modified list: $count1 ****"
echo "****  Script Execution Ended ****"