elasticsearch node health check

1. Download Nginx Download, the latest version is 1.11.5 Address: http://nginx.org/en/download.html PCRE (Nginx installation required dependency package) download Address: https://sourceforge.net/projects/pcre/files/pcre/ Nginx_upstream_check_module (Nginx back end node Health Check plugin) download Address: Https://github.com/yaoweibin/nginx_upstream_check_modul

Linux "Health Check" indicators and linux health check indicators Preface In an environment where "Buddha bless server is not down" and "killing programmers and offering sacrifices to Heaven", programmers are in a war every day. They are trembling with phone calls and text messages to ensure our security, discovering s

A script for monitoring the Elasticsearch index was found in the Nagios community, and then modified to use the listening IP that is normally used for incoming elasticsearch for using a script that monitors the Elasticsearch health state in Nagios#!/bin/bash#check_elasticsearch_health.sh#memofornagiosoutputsstate_ok=0s

When we start an instance of Elasticsearch, at least one node is started. The connection of multiple nodes of the same cluster name makes up a cluster.By default, each node in the cluster can handle HTTP requests and data transfers between cluster nodes, and all nodes in the cluster know all the other nodes in the cluster and can forward client requests to the ap

When we start an instance of Elasticsearch, we start at least one node. The connection of multiple nodes of the same cluster name makes up a cluster.By default, each node in a cluster can handle data transfers between HTTP requests and cluster nodes, and all nodes in the cluster know all the other nodes in the cluster, and can forward client requests to the appro

' {"A": "Avalue", "B": "Bvalue"}'3. Delete IndexCurl-xdelete ' http://Localhost:9200/{index}/{type}/{id} '4. Set mappingCurl-xput http://localhost:9200/{index}/{type}/_mapping-d ' { "{type}" : { " Properties " : { " date " : { " type ":" Long " }, " name " : { "Type": "string", "index": "Not_analyzed" }, "status" : { " Type ":" "Integer" } ,"type" : {"type": "Integer" }} } '5. Get mappingCurl-xget http://localho

=3000 rise=2 fall= 3 timeout=3000 type=http Port=7070 ; } Explanation: # interval=3000: Interval 3 seconds check, rise=2: Check 2 times OK backend node up,fall=3: Three check failed backend node down,timeout=3000: Timeout 3 seconds, type=http: HTTP

statement that begins with an error, then it is set to an unhealthy node, and Jobtracker adds the node to the blacklist. Assignment tasks are not sent to the node again.Benefits of this mechanism:1, can be as the load of the node feedback, such as: When the script monitoring network, IO, file system and other busy tim

Label:--Find all parent nodesWith TAB as(Select Type_id,parentid,type_name from sys_paramtype_v2_0 where type_id=316--child nodesUNION ALLSelect B.type_id,b.parentid,b.type_nameFromtab a,--child node datasetsSys_paramtype_v2_0 B--parent node data setWhere a.parentid=b.type_id--the child node DataSet. Parendid= The parent node