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Unable to start ElasticSearch in my machine, StartupException is occuring while executing elasticsearch.bat


By : Sam Benemerito
Date : October 16 2020, 06:10 PM
around this issue I need to work on elasticSearch, i have downloaded elasticsearch-6.7.2 from authorized website, but while trying to start the ElasticSearch server and while executing elasticsearch.bat file, i am getting the below error: , Go to the ElasticSearch directory:
C:\elasticsearch-6.7.2\config
code :


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Can't get elasticsearch to run as a service on Ubuntu 12.0.4 (Natty) - ElasticSearch may have failed to start


By : Lar
Date : March 29 2020, 07:55 AM
this one helps. Make sure that you have the JDK and you have specified the JAVA_HOME and the ES_HOME vars.
The following snippet works for me:
code :
sudo apt-get install openjdk-6-jdk # if you haven't
sudo export JAVA_HOME=/usr/lib/jvm/java-6-openjdk-amd64 >> /etc/bash.bashrc
wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.6.tar.gz
tar xvf elasticsearch-0.90.6.tar.gz
mv elasticsearch-0.90.6 elasticsearch
cd elasticsearch
sudo export ES_HOME=`(pwd)` >> /etc/bash.bashrc
cd ./bin
./elasticsearch -f  # to run in the foreground
ps -ef |grep elasticsearch
kill #PID result of previous command
pkill -f elasticsearch

Java elasticsearch API with Elasticsearch server on WM machine


By : Dany Jaque
Date : March 29 2020, 07:55 AM
This might help you You did not add the rangeQuery. Change your boolQueryBuilder to following:
code :
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery().must(QueryBuilders.matchQuery(matchQueryKey,matchQueryValue)).must(QueryBuilders.rangeQuery("@timestamp").gte(fromValue).lte(toValue));
InternalDateHistogram histogram = searchResponse.getAggregations().getAsMap().get(aggregation_name);
List bucketList = histogram?.getBuckets()

How to start many ElasticSearch nodes in one Machine


By : Juka
Date : March 29 2020, 07:55 AM
I hope this helps . If you want to start many nodes for testing purposes, I strongly recommend to use the esvm tool.
That tool is specifically designed for rapidly testing your code against different ES versions running on one or many nodes. For instance, you can start a 5-node cluster (2 master + 3 data) very easily using this configuration file:
code :
{
  "clusters": {
    "2m3d": {
      "plugins": ["mobz/elasticsearch-head"],
      "nodes": [
        {
          "cluster": { "name": "2m3d" },
          "node": { "name": "master-1", "data": false, "master": true }
        },
        {
          "cluster": { "name": "2m3d" },
          "node": { "name": "master-2", "data": false, "master": true }
        },
        {
          "cluster": { "name": "2m3d" },
          "node": { "name": "data-1", "data": true, "master": false }
        },
        {
          "cluster": { "name": "2m3d" },
          "node": { "name": "data-2", "data": true, "master": false }
        },
        {
          "cluster": { "name": "2m3d" },
          "node": { "name": "data-3", "data": true, "master": false }
        }
      ]
    }
  }
}
> esvm 2m3d

Spring data elasticsearch unable to connect to elasticsearch instance


By : Erik Hopp
Date : March 29 2020, 07:55 AM
wish of those help To me it seems like the clusternames do not match. Try this parameters:
Properties in YAML Syntax:
code :
### elastic properties
spring.data:
  elasticsearch:
    cluster-name: yourclustername
    cluster-nodes: localhost:9300
    repositories.enabled: true
@SpringBootApplication
@EnableElasticsearchRepositories(basePackages = "elasticsearch")
public class Application {
...

Unable to start elasticsearch


By : Slava Slavov
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further It looks like you defined custom location for the Elasticsearch files (data, logs, etc):
code :
[2018-02-19T05:51:09,241][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] []
 uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: U
nable to access 'path.data' (C:\Program Files\es\data)

2018-02-19 05:51:07,650 main ERROR Unable to create file C:\Program Files\es\log
s\elasticsearch_index_indexing_slowlog.log java.io.IOException: Permission denial
        at java.io.WinNTFileSystem.createFileExclusively(Native Method)

Caused by: java.nio.file.AccessDeniedException: C:\Program Files\es\data
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