I have a information retrieval assignment where I have to use elasticSearch to generate some indexing/ranking. I was able to download elasticSearch and it's now running on http://localhost:9200/ but how do I read every documents stored in my folder called 'data'?
Elasticsearch is just a search engine. In order to get your docs and files searchable, you need to load them, extract all relevant data and load into elasticsearch.
Apache Tika is a solution for extracting the data out of the files. Write a file system crawler using Tika. Then use the Rest API to index the data.
If you don't want to reinvent the wheel, have a look on the FSCrawler project. Here is a blogpost describing how to solve a task you are facing.
Good luck!
Is there a possibility to push the analysis report taken from the Performance Center to Logstash and visualize them in Kibana? I just wanted to automate the task of checking each vuser log file and then push errors to ELK stack. How can I retrieve the files by script and automate this. I can't get any direction on this because I need to automate the task of automatically reading from each vuser_log file.
Filebeat should be your tool to get done what you mentioned.
To automatically read entries you write in a file (could be a log file) you simply need a shipper tool which can be Filebeat (It integrates well with ELK stack. Logstash can also do the same thing though but that's heavy and requires JVM )
To do this in ELK stack you need following :
Filebeat should be setup on "all" instances where your main application is running- and generating logs.
Filebeat is simple lightweight shipper tool that can read your logs entries and then send them to Logstash.
Setup one instance of Logstash (that's L of ELK) which will receive events from Filebeat. Logstash will send data to Elastic Search
Setup one instance of Elastic Search (that's E of ELK) where your data will be stored
Setup one instance of Kibana (that's K of ELK). Kibana is the front end tool to view and interact with Elastic search via Rest calls
Refer following link for setting up above mentioned:
https://logz.io/blog/elastic-stack-windows/
I'm the beginner in Prometheus and Grafana.
I have created new dashboards in Grafana to monitor basic metrics of the server using Prometheus and Grafana.
in the same way needs to monitor elastic search in the servers.
I have followed the below steps :
I m not sure whether the below is the right approach.
I have tried below format for node_exporter process which results in success. that's y tried the below for elasticsearch exporters
in the Elastic search server(which is going to be monitored)
wget https://github.com/justwatchcom/elasticsearch_exporter/releases/download/v1.0.2rc1/elasticsearch_exporter-1.0.2rc1.darwin-386.tar.gz
tar -xf elasticsearch_exporter-1.0.2rc1.darwin-386.tar.gz
cd elasticsearch_exporter-1.0.2rc1.darwin-386
./elasticsearch_exporter
while executing the last step i get the below error.
-bash: ./elasticsearch_exporter: cannot execute binary file
once this is done, how can i get the dashboards in Grafana for elasticsearch
-bash: ./elasticsearch_exporter: cannot execute binary file
Typically the cause of this error is running an executable on the wrong architecture.
Double check the Elasticsearch binary you downloaded. You'll need to download the appropriate binary for your machine.
I have my ELK installed and use a logstash file to configure the log txt files. However, when I open kibana, I could not see the .raw field data. How can I see that?
You may go to the elasticsearch forum to ask
So I have this Elasticsearch installation, in insert data with logstash, visualize them with kibana.
Everything in the conf file is commented, so it's using the default folders which are relative to the elastic search folder.
1/ I store data with logstash
2/ I look at them with kibana
3/ I close the instance of elastic seach, kibana and logstash
4/ I DELETE their folders
5/ I re-extract everything and reconfigure them
6/ I go into kibana and the data are still there
How is this possible?
This command will however delete the data : curl -XDELETE 'http://127.0.0.1:9200/_all'
Thanks.
ps : forgot to say that I'm on windows
If you've installed ES on Linux, the default data folder is in /var/lib/elasticsearch (CentOS) or /var/lib/elasticsearch/data (Ubuntu)
If you're on Windows or if you've simply extracted ES from the ZIP/TGZ file, then you should have a data sub-folder in the extraction folder.
Have a look into the Nodes Stats and try
http://127.0.0.1:9200/_nodes/stats/fs?pretty
On Windows 10 with ElasticSearch 7 it shows:
"path" : "C:\\ProgramData\\Elastic\\Elasticsearch\\data\\nodes\\0"
According to the documentation the data is stored in a folder called "data" in the elastic search root directory.
If you run the Windows MSI installer (at least for 5.5.x), the default location for data files is:
C:\ProgramData\Elastic\Elasticsearch\data
The config and logs directories are siblings of data.
Elastic search is storing data under the folder 'Data' as mentioned above answers.
Is there any other elastic search instance available on your local network?
If yes, please check the cluster name. If you use same cluster name in the same network it will share data.
Refer this link for more info.
On centos:
/var/lib/elasticsearch
It should be in your extracted elasticsearch. Something like es/data