ElasticSearch Connect Exception

Elastic Stack Elasticsearch
1

I am getting a java.net.ConnectException: Timeout connecting when I am trying to connect to the ELasticSearch cluster at port 9200.

The error is as follows:
java.net.ConnectException: Timeout connecting to [/172.29.57.160:9200]
at org.elasticsearch.client.RestClient.extractAndWrapCause(RestClient.java:788)
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:218)
at org.elasticsearch.client.RestClient.performRequest(RestClient.java:205)
at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1454)
at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:1424)
at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:1394)
at org.elasticsearch.client.RestHighLevelClient.search(RestHighLevelClient.java:930)
at com.ericsson.edos.automation.agent.automationagent.service.LogService.findAll(LogService.java:52)
at com.ericsson.edos.automation.agent.automationagent.service.impl.AutomationServiceImpl.processAutomationLogs(AutomationServiceImpl.java:90)
at com.ericsson.edos.automation.agent.automationagent.scheduler.AutomationScheduler.run(AutomationScheduler.java:26)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.ConnectException: Timeout connecting to [/172.29.57.160:9200]
at org.apache.http.nio.pool.RouteSpecificPool.timeout(RouteSpecificPool.java:169)
at org.apache.http.nio.pool.AbstractNIOConnPool.requestTimeout(AbstractNIOConnPool.java:628)
at org.apache.http.nio.pool.AbstractNIOConnPool$InternalSessionRequestCallback.timeout(AbstractNIOConnPool.java:894)
at org.apache.http.impl.nio.reactor.SessionRequestImpl.timeout(SessionRequestImpl.java:183)
at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processTimeouts(DefaultConnectingIOReactor.java:210)
at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:155)
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:351)
at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.execute(PoolingNHttpClientConnectionManager.java:221)
at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(CloseableHttpAsyncClientBase.java:64)
... 1 more

Can anyone please suggest what can be done to fix it?

Thanks

2

What's your elastic version?
this your Ingest node [/172.29.57.160:9200] ?
How do you try to connect, with an app?

3

I am using Elastic version 7.3.0. I am trying to connect with the Elastic cluster on our server, using my local system, and fetch the logs.

4

using curl? curl -XGET "172.29.57.160:9200/_cluster/health?pretty" return a connection error message?

5

using curl

curl -XGET "172.29.57.160:9200/_cluster/health?pretty" on the local system does not give a response, the error is:

curl: (7) Failed to connect to 172.29.57.160 port 9200: Timed out

using curl -XGET "localhost:9200/_cluster/health?pretty" gives a pretty json format object

6

Either use localhost in your code or change network.host setting in your elasticsearch.yml file if you want elasticsearch to be available from other machines.

Read more at https://www.elastic.co/guide/en/elasticsearch/reference/current/important-settings.html

7

In our case we were using an older version of Elasticsearch and are only going for 7.3.0. The server port is listening to both 9200/9300. The curl script response for curl -XGET "localhost:9200/_cluster/health?pretty" is:

{
"cluster_name" : "dummy_cluster_name,
"status" : "yellow",
"timed_out" : false,
"number_of_nodes" : 1,
"number_of_data_nodes" : 1,
"active_primary_shards" : 56,
"active_shards" : 56,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 56,
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 0,
"number_of_in_flight_fetch" : 0,
"task_max_waiting_in_queue_millis" : 0,
"active_shards_percent_as_number" : 50.0
}

If I try to connect using port 9300, i get an exception that the port is not a http port.

For 9200, i get an connection timeout.

8

What are elasticsearch logs?

9

Please format your code, logs or configuration files using </> icon as explained in this guide and not the citation button. It will make your post more readable.

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1 Like
10

Your cluster is up, is you execute to allow rellocation of al the shards probably the cluster state change to green. This "unassigned_shards" : 56 are probably the replicas.

cluster.routing.allocation.enable

Enable or disable allocation for specific kinds of shards:

  • all - (default) Allows shard allocation for all kinds of shards.
  • primaries - Allows shard allocation only for primary shards.
  • new_primaries - Allows shard allocation only for primary shards for new indices.
  • none - No shard allocations of any kind are allowed for any indices.

if you execute that you receive the actual configuration

    curl -X GET "localhost:9200/_cluster/settings?pretty"

Here where you have the tag "enable": "all" you have "primaries"

    `{"persistent" : { "cluster" : {"routing" : {"rebalance" : {"enable" : "all"},`

About the connection error, all the nodes in your cluster have the same elasticsearch version? In the update process you are following the steps for rolling upgrades?

11

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