How to stop shut down an elasticsearch node

Question

I want to restart an elasticsearch node with a new configuration  What is the best way to gracefully shut down an node   Is killing the process the best way of shutting the server down  or is there some magic URL I can use to shut the node down

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For Mac users using Homebrew  Brew  to install and manage services  List your Brew services  brew services  Do something with a service  brew services start elasticsearch-full brew services restart elasticsearch-full brew services stop elasticsearch-full

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The Head plugin for Elasticsearch provides a great web based front end for Elasticsearch administration  including shutting down nodes  It can run any Elasticsearch commands as well

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If you just want to apply new config you don t need to shut it down     sudo service elasticsearch restart  But if you want to shut it down anyway     sudo service elasticsearch stop  OR    sudo systemctl stop elasticsearch service    sudo systemctl restart elasticsearch service  Docker   docker restart  lt elasticsearch-container-name or id gt

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This works for me on OSX   pkill -f elasticsearch

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Stopping the service and killing the daemon are indeed the correct ways to shutdown a node  However  it s not recommended to do so directly if you want to take down a node for maintenance  In fact  if you don t have replicas you will lose data   When you directly shutdown a node  Elasticsearch will wait for 1m  default time  for it to come back online  If it doesn t  then it will start to allocate the shards from that node to other nodes wasting lots of IO   A typical approach would be to disable shard allocation temporarily by issuing   PUT  cluster settings      persistent          cluster routing allocation enable    none          Now  when you take down a node  ES won t try to allocate shard from that node to other nodes and you can perform you maintenance activity and then once the node is up  you can enable shard allocation again   PUT  cluster settings      persistent          cluster routing allocation enable    all          Source  https   www elastic co guide en elasticsearch reference 5 5 restart-upgrade html  If you don t have replicas for all your indexes  then performing this type of activity will have downtime on some of the indexes  A cleaner way in this case would be to migrate all the shards to other nodes before taking the node down   PUT  cluster settings      transient           cluster routing allocation exclude  ip     10 0 0 1          This will move all shards from 10 0 0 1 to other nodes  will take time depending on the data   Once everything is done  you can kill the node  perform maintenance and get it back online  This is a slower operation and is not required if you have replicas    Instead of  ip   id   name with wildcards will work just fine    More information  https   www elastic co guide en elasticsearch reference 5 5 allocation-filtering html  Other answers have explained how to kill a process

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Updated answer    shutdown API has been removed in elasticsearch 2 x   Some options    In your terminal  dev mode basically   just type  Ctrl-C  If you started it as a daemon  -d  find the PID and kill the process  SIGTERM will shut Elasticsearch down cleanly  kill -15 PID  If running as a service  run something like service elasticsearch stop    Linux Windows    Previous answer  It s now deprecated from 1 6    Yeah  See admin cluster nodes shutdown documentation  Basically     Shutdown local node   curl -XPOST  http   localhost 9200  cluster nodes  local  shutdown     Shutdown all nodes in the cluster   curl -XPOST  http   localhost 9200  shutdown

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If you can t find what process is running elasticsearch on windows machine you can try running in console   netstat -a -n -o   Look for port elasticsearch is running  default is 9200  Last column is PID for process that is using that port  You can shutdown it with simple command in console  taskkill  PID here goes PID  F

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Considering you have 3 nodes   Prepare your cluster  export ES HOST localhost 9200    Disable shard allocation curl -X PUT   ES HOST  cluster settings  -H  Content-Type  application json  -d       persistent          cluster routing allocation enable    none             Stop non-essential indexing and perform a synced flush curl -X POST   ES HOST  flush synced    Stop elasticsearch service in each node    check nodes export ES HOST localhost 9200 curl -X GET   ES HOST  cat nodes     node 1 systemctl stop elasticsearch service    node 2 systemctl stop elasticsearch service    node 3 systemctl stop elasticsearch service   Restarting cluster again    start systemctl start elasticsearch service    Reenable shard allocation once the node has joined the cluster curl -X PUT   ES HOST  cluster settings  -H  Content-Type  application json  -d       persistent          cluster routing allocation enable   null           Tested on Elasticseach 6 5  Source    https   www elastic co guide en elasticsearch reference 6 5 stopping-elasticsearch html https   www elastic co guide en elasticsearch reference 6 5 rolling-upgrades html

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use the following command to know the pid of the node already running      curl -XGET  http   localhost 9200  nodes process    It took me an hour to find out the way to kill the node and could finally do it after using this command in the terminal window

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Just in case you want to find PID of the instance and kill the process  assuming that the node is listening to port 9300  the default port  you can run the following command    kill -9    netstat -nlpt   grep 9200   cut -d     -f 58   cut -d     -f 1    You may have to play with the numbers in the above-mentioned code such as 58 and 1

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If you re running a node on localhost  try to use brew service stop elasticsearch  I run elasticsearch on iOS localhost

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Answer for Elasticsearch inside Docker   Just stop the docker container  It seems to stop gracefully because it logs    INFO   o e n Node                  elastic  stopping

[elasticsearch] How to stop/shut down an elasticsearch node?

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