# Elasticsearch not reachable

**URL:** <https://discuss.elastic.co/t/elasticsearch-not-reachable/195419>\
**Category:** Logstash\
**Created:** [August 16, 2019, 3:34am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419 "2019-08-16T03:34:35Z")\
**Posts on this page:** 10\
**Page:** 1

<div class="post-metadata">

**Author:** ![muzamil47](https://avatars.discourse-cdn.com/v4/letter/m/59ef9b/32.png) [@muzamil47](https://discuss.elastic.co/u/muzamil47)\
**Post date:** [August 16, 2019, 3:34am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419/1 "2019-08-16T03:34:35Z")

</div>

I am trying to load CSV data into Elasticsearch using Logstash and visualize the data in Kibana, but when I run logstash config file, I am getting Elasticseach not reachable error, though my elasticsearch server is running fine.

Note: I can load the data in outout file using logstash.

Here is my logstash.config file:  
input {  
beats {  
port =\> 5044  
}  
file{  
path =\> "/populationbycountry19802010millions.csv"  
start\_position =\> "beginning"  
sincedb\_path =\> "directory/null"  
}  
}  
filter {  
csv{  
separator =\> ","  
columns =\> ["Country", "1980", "1981", "1982", "1983", "1984", "1985", "1986", "1987", "1988", "1989", "1990", "1991", "1992", "1993", "1994", "1995", "1996", "1997", "1998", "1999", "2000", "2001", "2002", "2003", "2004", "2005", "2006", "2007", "2008", "2009", "2010"]  
}  
mutate {convert =\> ["1980", float]}  
mutate {convert =\> ["1981", float]}  
mutate {convert =\> ["1982", float]}  
mutate {convert =\> ["1983", float]}  
mutate {convert =\> ["1984", float]}  
mutate {convert =\> ["1985", float]}  
mutate {convert =\> ["1986", float]}  
mutate {convert =\> ["1987", float]}  
mutate {convert =\> ["1988", float]}  
mutate {convert =\> ["1989", float]}  
mutate {convert =\> ["1990", float]}  
mutate {convert =\> ["1991", float]}  
mutate {convert =\> ["1992", float]}  
mutate {convert =\> ["1993", float]}  
mutate {convert =\> ["1994", float]}  
mutate {convert =\> ["1995", float]}  
mutate {convert =\> ["1996", float]}  
mutate {convert =\> ["1997", float]}  
mutate {convert =\> ["1998", float]}  
mutate {convert =\> ["1999", float]}  
mutate {convert =\> ["2000", float]}  
mutate {convert =\> ["2001", float]}  
mutate {convert =\> ["2002", float]}  
mutate {convert =\> ["2003", float]}  
mutate {convert =\> ["2004", float]}  
mutate {convert =\> ["2005", float]}  
mutate {convert =\> ["2006", float]}  
mutate {convert =\> ["2007", float]}  
mutate {convert =\> ["2008", float]}  
mutate {convert =\> ["2009", float]}  
mutate {convert =\> ["2010", float]}  
}  
output {  
elasticsearch {  
hosts =\> ["[http://localhost:9200](http://localhost:9200)"]  
manage\_template =\> false  
index =\> "population-%{+YYYY.MM.dd}"  
}  
file{  
path =\> "C:/services/elasticsearch/logstash-7.3.0/config/test-data/population/outlog2.log"  
}  
stdout {  
codec =\> rubydebug  
}  
}

Here is my error log:

```
C:\services\elasticsearch\logstash-7.3.0\bin>logstash -f ../config/test-data/population/logstash.conf
Thread.exclusive is deprecated, use Thread::Mutex
Sending Logstash logs to C:/services/elasticsearch/logstash-7.3.0/logs which is now configured via log4j2.properties
[2019-08-16T12:21:48,929][WARN][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
[2019-08-16T12:21:48,939][INFO][logstash.runner] Starting Logstash {"logstash.version"=>"7.3.0"}
[2019-08-16T12:21:50,225][INFO][org.reflections.Reflections] Reflections took 27 ms to scan 1 urls, producing 19 keys and 39 values
[2019-08-16T12:21:52,616][INFO][logstash.outputs.elasticsearch] Elasticsearch pool URLs updated {:changes=>{:removed=>[], :added=>[http://localhost:9200/]}}
[2019-08-16T12:21:52,756][WARN][logstash.outputs.elasticsearch] Restored connection to ES instance {:url=>"http://localhost:9200/"}
[2019-08-16T12:21:52,792][INFO][logstash.outputs.elasticsearch] ES Output version determined {:es_version=>7}
[2019-08-16T12:21:52,795][WARN][logstash.outputs.elasticsearch] Detected a 6.x and above cluster: the `type` event field won't be used to determine the document _type {:es_version=>7}
[2019-08-16T12:21:52,811][INFO][logstash.outputs.elasticsearch] New Elasticsearch output {:class=>"LogStash::Outputs::ElasticSearch", :hosts=>["http://localhost:9200"]}
[2019-08-16T12:21:52,897][WARN][org.logstash.instrument.metrics.gauge.LazyDelegatingGauge] A gauge metric of an unknown type (org.jruby.specialized.RubyArrayOneObject) has been create for key: cluster_uuids. This may result in invalid serialization. It is recommended to log an issue to the responsible developer/development team.
[2019-08-16T12:21:52,900][INFO][logstash.javapipeline] Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>6, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50, "pipeline.max_inflight"=>750, :thread=>"#<Thread:0x6a01f497 run>"}
[2019-08-16T12:21:53,348][INFO][logstash.inputs.beats] Beats inputs: Starting input listener {:address=>"0.0.0.0:5044"}
[2019-08-16T12:21:53,745][INFO][logstash.javapipeline] Pipeline started {"pipeline.id"=>"main"}
[2019-08-16T12:21:53,838][INFO][org.logstash.beats.Server] Starting server on port: 5044
[2019-08-16T12:21:53,840][INFO][filewatch.observingtail] START, creating Discoverer, Watch with file and sincedb collections
[2019-08-16T12:21:53,847][INFO][logstash.agent] Pipelines running {:count=>1, :running_pipelines=>[:main], :non_running_pipelines=>[]}
[2019-08-16T12:21:54,199][INFO][logstash.agent] Successfully started Logstash API endpoint {:port=>9600}
[2019-08-16T12:23:08,742][WARN][logstash.outputs.elasticsearch] Marking url as dead. Last error: [LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError] Elasticsearch Unreachable: [http://localhost:9200/][Manticore::SocketTimeout] Read timed out {:url=>http://localhost:9200/, :error_message=>"Elasticsearch Unreachable: [http://localhost:9200/][Manticore::SocketTimeout] Read timed out", :error_class=>"LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError"}
[2019-08-16T12:23:08,748][ERROR][logstash.outputs.elasticsearch] Attempted to send a bulk request to elasticsearch' but Elasticsearch appears to be unreachable or down! {:error_message=>"Elasticsearch Unreachable: [http://localhost:9200/][Manticore::SocketTimeout] Read timed out", :class=>"LogStash::Outputs::ElasticSearch::HttpClient::Pool::HostUnreachableError", :will_retry_in_seconds=>2}
[2019-08-16T12:23:10,762][ERROR][logstash.outputs.elasticsearch] Attempted to send a bulk request to elasticsearch, but no there are no living connections in the connection pool. Perhaps Elasticsearch is unreachable or down? {:error_message=>"No Available connections", :class=>"LogStash::Outputs::ElasticSearch::HttpClient::Pool::NoConnectionAvailableError", :will_retry_in_seconds=>4}
```

---

<div class="post-metadata">

**Author:** ![harshbajaj16](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/harshbajaj16/32/44970_2.png) [@harshbajaj16](https://discuss.elastic.co/u/harshbajaj16)\
**Post date:** [August 16, 2019, 4:07am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419/2 "2019-08-16T04:07:07Z")

</div>

HI,

Is your elasticsearch service is running?  
Are you able to ping or telnet your elasticsearch node from logstash node?

> [@muzamil47](#):
>
> {:error\_message=\>"Elasticsearch Unreachable: [[http://localhost:9200/](http://localhost:9200/)][Manticore::SocketTimeout] Read timed out", :class=\>"LogStash::Outputs::Elasticsearch::HttpClient::Pool::HostUnreachableError", :will\_retry\_in\_seconds=\>2}

Regards,  
Harsh Bajaj

---

<div class="post-metadata">

**Author:** ![muzamil47](https://avatars.discourse-cdn.com/v4/letter/m/59ef9b/32.png) [@muzamil47](https://discuss.elastic.co/u/muzamil47)\
**Post date:** [August 16, 2019, 6:08am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419/3 "2019-08-16T06:08:10Z")

</div>

Hi,

Thanks for your reply.  
Yes the ES service is running but I don't know how to ping ES node from Logstash node,  
Kindly guide me.

Thanks

---

<div class="post-metadata">

**Author:** ![Gwendolyn4007](https://avatars.discourse-cdn.com/v4/letter/g/8edcca/32.png) [@Gwendolyn4007](https://discuss.elastic.co/u/Gwendolyn4007)\
**Post date:** [August 16, 2019, 7:15am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419/4 "2019-08-16T07:15:54Z")

</div>

> [@muzamil47](#):
>
> Hi,
> 
> Thanks for your reply. [mygiftcardsite balance](https://www.mygiftcardsite.us/)  
> Yes the ES service is running but I don't know how to ping ES node from Logstash node,  
> Kindly guide me.
> 
> Thanks

Happy to hear that! Your comment made mine.

---

<div class="post-metadata">

**Author:** ![muzamil47](https://avatars.discourse-cdn.com/v4/letter/m/59ef9b/32.png) [@muzamil47](https://discuss.elastic.co/u/muzamil47)\
**Post date:** [August 16, 2019, 7:17am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419/5 "2019-08-16T07:17:27Z")

</div>

I am not getting your comment 🙂

---

<div class="post-metadata">

**Author:** ![harshbajaj16](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/harshbajaj16/32/44970_2.png) [@harshbajaj16](https://discuss.elastic.co/u/harshbajaj16)\
**Post date:** [August 16, 2019, 7:54am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419/6 "2019-08-16T07:54:05Z")

</div>

Hi

you can run command as below from logstash node:  
`ping <elasticsearch host>`  
For telnet run below command:  
`telnet <IP> <port>`

> [@muzamil47](#):
>
> Kindly guide me.

Regards,  
Harsh Bajaj

---

<div class="post-metadata">

**Author:** ![muzamil47](https://avatars.discourse-cdn.com/v4/letter/m/59ef9b/32.png) [@muzamil47](https://discuss.elastic.co/u/muzamil47)\
**Post date:** [August 16, 2019, 9:00am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419/7 "2019-08-16T09:00:53Z")

</div>

> [@harshbajaj16](#):
>
> elasticsearch host

Dear I don't use any logstash node.

---

<div class="post-metadata">

**Author:** ![harshbajaj16](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/harshbajaj16/32/44970_2.png) [@harshbajaj16](https://discuss.elastic.co/u/harshbajaj16)\
**Post date:** [August 16, 2019, 9:59am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419/8 "2019-08-16T09:59:18Z")

</div>

Hi,

Could you confirm your setup of ELK stack to understand more?

Regards,  
Harsh Bajaj

---

<div class="post-metadata">

**Author:** ![muzamil47](https://avatars.discourse-cdn.com/v4/letter/m/59ef9b/32.png) [@muzamil47](https://discuss.elastic.co/u/muzamil47)\
**Post date:** [August 18, 2019, 11:29am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419/9 "2019-08-18T11:29:20Z")

</div>

> [@harshbajaj16](#):
>
> confirm your setup of ELK stack to understand mo

Thanks, I figured out that my connection to elastic cluster was lost.  
When I restarted ES it works. 🙂

Thanks for helping me.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [September 15, 2019, 11:29am UTC](https://discuss.elastic.co/t/elasticsearch-not-reachable/195419/10 "2019-09-15T11:29:27Z")

</div>

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