how to move elasticsearch data from one server to another

Question

How do I move Elasticsearch data from one server to another   I have server A running Elasticsearch 1 1 1 on one local node with multiple indices  I would like to copy that data to server B running Elasticsearch 1 3 4  Procedure so far   Shut down ES on both servers and  scp all the data to the correct data dir on the new server   data seems to be located at  var lib elasticsearch  on my debian boxes  change permissions and ownership to elasticsearch elasticsearch  start up the new ES server   When I look at the cluster with the ES head plugin  no indices appear    It seems that the data is not loaded  Am I missing something

User · Answer

There is also the  reindex option  From documentation      Through the Elasticsearch reindex API  available in version 5 x and later  you can connect your new Elasticsearch Service deployment remotely to your old Elasticsearch cluster  This pulls the data from your old cluster and indexes it into your new one  Reindexing essentially rebuilds the index from scratch and it can be more resource intensive to run    POST  reindex      source          remote            host    https   REMOTE ELASTICSEARCH ENDPOINT PORT          username    USER          password    PASSWORD              index    INDEX NAME        query            match all                    dest          index    INDEX NAME

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I ve always had success simply copying the index directory folder over to the new server and restarting it  You ll find the index id by doing GET   cat indices and the folder matching this id is in data nodes 0 indices  usually inside your elasticsearch folder unless you moved it

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The selected answer makes it sound slightly more complex than it is  the following is what you need  install npm first on your system    npm install -g elasticdump elasticdump --input http   mysrc com 9200 my index --output http   mydest com 9200 my index --type mapping elasticdump --input http   mysrc com 9200 my index --output http   mydest com 9200 my index --type data   You can skip the first elasticdump command for subsequent copies if the mappings remain constant   I have just done a migration from AWS to Qbox io with the above without any problems   More details over at   https   www npmjs com package elasticdump  Help page  as of Feb 2016  included for completeness   elasticdump  Import and export tools for elasticsearch  Usage  elasticdump --input SOURCE --output DESTINATION  OPTIONS   --input                     Source location  required  --input-index                     Source index and type                      default  all  example  index type  --output                     Destination location  required  --output-index                     Destination index and type                      default  all  example  index type  --limit                     How many objects to move in bulk per operation                     limit is approximate for file streams                      default  100  --debug                     Display the elasticsearch commands being used                      default  false  --type                     What are we exporting                       default  data  options   data  mapping   --delete                     Delete documents one-by-one from the input as they are                     moved   Will not delete the source index                      default  false  --searchBody                     Preform a partial extract based on search results                      when ES is the input                       default     query      match all             --sourceOnly                     Output only the json contained within the document  source                     Normal     index       type       id        source   SOURCE                       sourceOnly   SOURCE                       default  false  --all                     Load store documents from ALL indexes                      default  false  --bulk                     Leverage elasticsearch Bulk API when writing documents                      default  false  --ignore-errors                     Will continue the read write loop on write error                      default  false  --scrollTime                     Time the nodes will hold the requested search in order                       default  10m  --maxSockets                     How many simultaneous HTTP requests can we process make                       default                        5  node  lt   v0 10 x                          Infinity  node  gt   v0 11 x    --bulk-mode                     The mode can be index  delete or update                       index   Add or replace documents on the destination index                       delete   Delete documents on destination index                       update   Use  doc as upsert  option with bulk update API to do partial update                       default  index  --bulk-use-output-index-name                     Force use of destination index name  the actual output URL                      as destination while bulk writing to ES  Allows                     leveraging Bulk API copying data inside the same                     elasticsearch instance                       default  false  --timeout                     Integer containing the number of milliseconds to wait for                     a request to respond before aborting the request  Passed                     directly to the request library  If used in bulk writing                      it will result in the entire batch not being written                      Mostly used when you don t care too much if you lose some                     data when importing but rather have speed  --skip                     Integer containing the number of rows you wish to skip                     ahead from the input transport   When importing a large                     index  things can go wrong  be it connectivity  crashes                      someone forgetting to  screen   etc   This allows you                     to start the dump again from the last known line written                      as logged by the  offset  in the output    Please be                     advised that since no sorting is specified when the                     dump is initially created  there s no real way to                     guarantee that the skipped rows have already been                     written parsed   This is more of an option for when                     you want to get most data as possible in the index                     without concern for losing some rows in the process                      similar to the  timeout  option  --inputTransport                     Provide a custom js file to us as the input transport --outputTransport                     Provide a custom js file to us as the output transport --toLog                     When using a custom outputTransport  should log lines                     be appended to the output stream                       default  true  except for      --help                     This page  Examples     Copy an index from production to staging with mappings  elasticdump     --input http   production es com 9200 my index     --output http   staging es com 9200 my index     --type mapping elasticdump     --input http   production es com 9200 my index     --output http   staging es com 9200 my index     --type data    Backup index data to a file  elasticdump     --input http   production es com 9200 my index     --output  data my index mapping json     --type mapping elasticdump     --input http   production es com 9200 my index     --output  data my index json     --type data    Backup and index to a gzip using stdout  elasticdump     --input http   production es com 9200 my index     --output         gzip  gt   data my index json gz    Backup ALL indices  then use Bulk API to populate another ES cluster  elasticdump     --all true     --input http   production-a es com 9200      --output  data production json elasticdump     --bulk true     --input  data production json     --output http   production-b es com 9200     Backup the results of a query to a file elasticdump     --input http   production es com 9200 my index     --output query json     --searchBody    query    term    username    admin       ------------------------------------------------------------------------------ Learn more   https   github com taskrabbit elasticsearch-dump enter code here

User · Answer

If you simply need to transfer data from one elasticsearch server to another  you could also use elasticsearch-document-transfer     Steps    Open a directory in your terminal and run   npm install elasticsearch-document-transfer  Create a file config js Add the connection details of both elasticsearch servers in config js Set appropriate values in options js Run in the terminal   node index js

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You can take a snapshot of the complete status of your cluster  including all data indices  and restore them  using the restore API  in the new cluster or server

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If  you don t want to use the elasticdump like a console tool  You can use next node js  script

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You can use snapshot restore feature available in Elasticsearch for this  Once you have setup a Filesystem based snapshot store  you can move it around between clusters and restore on a different cluster

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If anyone encounter the same issue  when trying to dump from elasticsearch  lt 2 0 to  2 0 you need to do   elasticdump --input http   localhost 9200  SRC IND --output http    TARGET IP 9200  TGT IND --type analyzer elasticdump --input http   localhost 9200  SRC IND --output http    TARGET IP 9200  TGT IND --type mapping elasticdump --input http   localhost 9200  SRC IND --output http    TARGET IP 9200  TGT IND --type data --transform  delete doc   source   id

User · Answer

I tried on ubuntu to move data from ELK 2 4 3 to ELK 5 1 1   Following are the steps    sudo apt-get update    sudo apt-get install -y python-software-properties python g   make    sudo add-apt-repository ppa chris-lea node js    sudo apt-get update    sudo apt-get install npm    sudo apt-get install nodejs    npm install colors    npm install nomnom    npm install elasticdump   in home directory goto     cd node modules elasticdump    execute the command  If you need basic http auth  you can use it like this    --input http   name password localhost 9200 my index   Copy an index from production       bin elasticdump --input  http   Source 9200 Sourceindex  --output  http   username password Destination 9200 Destination index   --type data

User · Answer

Use ElasticDump  1  yum install epel-release  2  yum install nodejs  3  yum install npm  4  npm install elasticdump  5  cd node modules elasticdump bin  6      elasticdump      --input http   192 168 1 1 9200 original      --output http   192 168 1 2 9200 newCopy      --type data

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We can use elasticdump or multielasticdump to take the backup and restore it  We can move data from one server cluster to another server cluster   Please find a detailed answer which I have provided here

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If you can add the second server to cluster  you may do this      Add Server B to cluster with Server A   Increment number of replicas for indices   ES will automatically copy indices to server B Close server A Decrement number of replicas for indices   This will only work if number of replaces equal to number of nodes

[elasticsearch] how to move elasticsearch data from one server to another

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