Duong Quang Duc dqduc

Elasticsearch: updating the mappings and settings of an existing index

Note: This was written using elasticsearch 0.9.

Elasticsearch will automatically create an index (with basic settings and mappings) for you if you post a first document:

$ curl -X POST 'http://localhost:9200/thegame/weapons/1' -d \
'{
  "_id": 1,

Create a table to represent tree nodes.

CREATE TABLE `tree_node` (
    `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
    `data_body` text,

node_deleted datetime DEFAULT NULL,

Details of steps I took on each node in a nine node ES cluster on RHEL7. These steps need to occur one node at a time, i.e. "rolling upgrade")

curl -XPUT "http://localhost:9200/_cluster/settings" -d'
{
  "transient": {
    "cluster.routing.allocation.enable": "none"
  }
}'

	// create an index with an analyzer "myindex"
	curl -X PUT localhost:9200/myindex -d '
	{
	"settings" : {`
	"index":{
	"number_of_replicas":0,
	"number_of_shards":1,
	"analysis":{
	"analyzer":{
	"first":{

	console.log(1);
	(_ => console.log(2))();
	eval('console.log(3);');
	console.log.call(null, 4);
	console.log.apply(null, [5]);
	new Function('console.log(6)')();
	Reflect.apply(console.log, null, [7])
	Reflect.construct(function(){console.log(8)}, []);
	Function.prototype.apply.call(console.log, null, [9]);
	Function.prototype.call.call(console.log, null, 10);

	<powershell>
	iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'))
	choco install python -y
	(new-object net.webclient).DownloadFile('https://s3.amazonaws.com/aws-cli/AWSCLI64.msi','c:\AWSCLI64.msi')
	msiexec.exe /i 'C:\AWSCLI64.msi' /qn
	</powershell>

	#!/bin/bash
	yum install perl-Switch perl-DateTime perl-Sys-Syslog perl-LWP-Protocol-https -y
	curl http://aws-cloudwatch.s3.amazonaws.com/downloads/CloudWatchMonitoringScripts-1.2.1.zip -O
	unzip CloudWatchMonitoringScripts-1.2.1.zip
	rm CloudWatchMonitoringScripts-1.2.1.zip

	# http://stackoverflow.com/questions/1388025/how-to-get-id-of-the-last-updated-row-in-mysql

	# single row update
	SET @update_id := 0;
	UPDATE some_table SET column_name = 'value', id = (SELECT @update_id := id)
	WHERE some_other_column = 'blah' LIMIT 1;
	SELECT @update_id;

	# Multiple rows updated
	SET @uids := null;