# Elastic Cluster connection Issue
**URL:** https://discuss.elastic.co/t/elastic-cluster-connection-issue/327593
**Category:** Elasticsearch
**Created:** [March 13, 2023, 7:59pm UTC](https://discuss.elastic.co/t/elastic-cluster-connection-issue/327593 "2023-03-13T19:59:45Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Stalin](https://discuss.elastic.co/u/Stalin)
#### Post date: [March 13, 2023, 7:59pm UTC](https://discuss.elastic.co/t/elastic-cluster-connection-issue/327593/1 "2023-03-13T19:59:45Z")
Hi,
We have frequently faced the below issue
" Can not connect to the Elastic Search Cluster
See the Kibana logs for details and try to reload the page"
Someone pls help me on this!!
---
### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [March 14, 2023, 6:56am UTC](https://discuss.elastic.co/t/elastic-cluster-connection-issue/327593/2 "2023-03-14T06:56:22Z")
I do not think anyone can help with that little information. Please provide the following information:
- Which Elasticsearch version are you using?
- What is the size and specification of your cluster?
- How is the cluster configured?
- What is in the Elasticsearch logs?
- What is in the Kibana logs?
---
### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [March 19, 2023, 10:37pm UTC](https://discuss.elastic.co/t/elastic-cluster-connection-issue/327593/3 "2023-03-19T22:37:29Z")
Welcome to our community! 😃
Please take a look at [Dec 10th, 2022: [EN] Asking top notch technical questions to get you help quicker!](https://discuss.elastic.co/t/dec-10th-2022-en-asking-top-notch-technical-questions-to-get-you-help-quicker/320300/) and then update your post with more information to allow us to help you.
---
### Author:  [@Stalin](https://discuss.elastic.co/u/Stalin)
#### Post date: [April 4, 2023, 7:12pm UTC](https://discuss.elastic.co/t/elastic-cluster-connection-issue/327593/4 "2023-04-04T19:12:11Z")
Hi Chris,
version - 7.1.1
VM - Standard F8s v2 (8 vcpus, 16 GiB memory) - Azure.
Elastic Search Logs:
[2023-04-04T00:03:02,201][INFO][o.e.c.m.MetaDataCreateIndexService] [ELK-01] [filebeat-2023.14.04] creating index, cause [auto(bulk api)], templates , shards [1]/[1], mappings
[2023-04-04T00:03:02,967][INFO][o.e.c.m.MetaDataMappingService] [ELK-01] [filebeat-2023.14.04/kF\_8fr2CSfO8DtPUPDux5Q] create\_mapping [\_doc]
[2023-04-04T00:03:02,967][INFO][o.e.c.m.MetaDataMappingService] [ELK-01] [filebeat-2023.14.04/kF\_8fr2CSfO8DtPUPDux5Q] update\_mapping [\_doc]
[2023-04-04T00:03:03,029][INFO][o.e.c.m.MetaDataMappingService] [ELK-01] [filebeat-2023.14.04/kF\_8fr2CSfO8DtPUPDux5Q] update\_mapping [\_doc]
[2023-04-04T00:03:05,908][INFO][o.e.c.m.MetaDataMappingService] [ELK-01] [filebeat-2023.14.04/kF\_8fr2CSfO8DtPUPDux5Q] update\_mapping [\_doc]
[2023-04-04T00:03:05,986][INFO][o.e.c.m.MetaDataMappingService] [ELK-01] [filebeat-2023.14.04/kF\_8fr2CSfO8DtPUPDux5Q] update\_mapping [\_doc]
[2023-04-04T00:03:05,986][INFO][o.e.c.m.MetaDataMappingService] [ELK-01] [filebeat-2023.14.04/kF\_8fr2CSfO8DtPUPDux5Q] update\_mapping [\_doc]
[2023-04-04T00:03:06,049][INFO][o.e.c.m.MetaDataMappingService] [ELK-01] [filebeat-2023.14.04/kF\_8fr2CSfO8DtPUPDux5Q] update\_mapping [\_doc]
[2023-04-04T00:03:06,174][INFO][o.e.c.m.MetaDataMappingService] [ELK-01] [filebeat-2023.14.04/kF\_8fr2CSfO8DtPUPDux5Q] update\_mapping [\_doc]
[2023-04-04T00:04:30,312][INFO][o.e.c.m.MetaDataMappingService] [ELK-01] [filebeat-2023.14.04/kF\_8fr2CSfO8DtPUPDux5Q] update\_mapping [\_doc]
[2023-04-04T00:08:14,932][WARN][o.e.m.j.JvmGcMonitorService] [ELK-01] [gc][14009] overhead, spent [5.1s] collecting in the last [5.6s]
[2023-04-04T00:08:15,858][INFO][o.e.c.m.MetaDataIndexTemplateService] [ELK-01] adding template [.management-beats] for index patterns [.management-beats]
[2023-04-04T00:24:10,346][INFO][o.e.c.m.MetaDataMappingService] [ELK-01] [filebeat-2023.14.04/kF\_8fr2CSfO8DtPUPDux5Q] update\_mapping [\_doc]
[2023-04-04T13:22:20,985][INFO][o.e.m.j.JvmGcMonitorService] [ELK-01] [gc][old][61268][6820] duration [5s], collections [1]/[5.5s], total [5s]/[8.5m], memory [3.6gb]-\>[3.3gb]/[3.9gb], all\_pools {[young] [229.8mb]-\>[5mb]/[532.5mb]}{[survivor] [42.7mb]-\>[0b]/[66.5mb]}{[old] [3.3gb]-\>[3.3gb]/[3.3gb]}
[2023-04-04T13:22:20,985][WARN][o.e.m.j.JvmGcMonitorService] [ELK-01] [gc][61268] overhead, spent [5s] collecting in the last [5.5s]
[2023-04-04T14:18:32,762][DEBUG][o.e.a.s.TransportSearchAction] [ELK-01] [filebeat-2022.26.27][0], node[gVBS2KYESYyXpCKoxv7PYw], [P], s[STARTED], a[id=ZDK5r21YRvy0wDNXopAMMw]: Failed to execute [SearchRequest{searchType=QUERY\_THEN\_FETCH, indices=[filebeat-_], indicesOptions=IndicesOptions[ignore\_unavailable=false, allow\_no\_indices=true, expand\_wildcards\_open=true, expand\_wildcards\_closed=false, allow\_aliases\_to\_multiple\_indices=true, forbid\_closed\_indices=true, ignore\_aliases=false, ignore\_throttled=true], types=[], routing='null', preference='null', requestCache=null, scroll=null, maxConcurrentShardRequests=0, batchedReduceSize=512, preFilterShardSize=128, allowPartialSearchResults=true, localClusterAlias=null, getOrCreateAbsoluteStartMillis=-1, ccsMinimizeRoundtrips=true, source={"size":0,"timeout":"1s","terminate\_after":100000,"query":{"match\_all":{"boost":1.0}},"aggregations":{"suggestions":{"terms":{"field":"Message.keyword","size":10,"shard\_size":10,"min\_doc\_count":1,"shard\_min\_doc\_count":0,"show\_term\_doc\_count\_error":false,"execution\_hint":"map","order":[{"\_count":"desc"},{"\_key":"asc"}],"include":"._"}}}}}] lastShard [true]
org.elasticsearch.transport.RemoteTransportException: [ELK-01][199.50.0.29:9300][indices:data/read/search[phase/query]]
Caused by: org.elasticsearch.search.query.QueryPhaseExecutionException: Query Failed [Failed to execute main query]
at org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java:307) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.search.query.QueryPhase.execute(QueryPhase.java:115) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.indices.IndicesService.lambda$loadIntoContext$18(IndicesService.java:1272) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.indices.IndicesService.lambda$cacheShardLevelResult$19(IndicesService.java:1329) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.indices.IndicesRequestCache$Loader.load(IndicesRequestCache.java:174) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.indices.IndicesRequestCache$Loader.load(IndicesRequestCache.java:157) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.common.cache.Cache.computeIfAbsent(Cache.java:433) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.indices.IndicesRequestCache.getOrCompute(IndicesRequestCache.java:123) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.indices.IndicesService.cacheShardLevelResult(IndicesService.java:1335) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.indices.IndicesService.loadIntoContext(IndicesService.java:1269) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.search.SearchService.loadOrExecuteQueryPhase(SearchService.java:347) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:393) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.search.SearchService.access$100(SearchService.java:124) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.search.SearchService$2.onResponse(SearchService.java:358) [elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.search.SearchService$2.onResponse(SearchService.java:354) [elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.search.SearchService$4.doRun(SearchService.java:1069) [elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:41) [elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:751) [elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-7.1.1.jar:7.1.1]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
at java.lang.Thread.run(Thread.java:835) [?:?]
Caused by: org.elasticsearch.common.breaker.CircuitBreakingException: [parent] Data too large, data for [\] would be [4014880416/3.7gb], which is larger than the limit of [4013975142/3.7gb], real usage: [4014863976/3.7gb], new bytes reserved: [16440/16kb]
at org.elasticsearch.indices.breaker.HierarchyCircuitBreakerService.checkParentLimit(HierarchyCircuitBreakerService.java:343) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.common.breaker.ChildMemoryCircuitBreaker.addEstimateBytesAndMaybeBreak(ChildMemoryCircuitBreaker.java:128) ~[elasticsearch-7.1.1.jar:7.1.1]
at org.elasticsearch.common.util.BigArrays.adjustBreaker(BigArrays.java:399) ~[elasticsearch-7.1.1.jar:7.1.1],
I have faced this error repeatedly in my Kibana Visualization:
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [April 4, 2023, 7:23pm UTC](https://discuss.elastic.co/t/elastic-cluster-connection-issue/327593/5 "2023-04-04T19:23:33Z")
> [@Stalin](#):
>
> version - 7.1.1
This is very, very old and has been EOL a long time. I would recommend you upgrade at least to version 7.17 as soon as possible.
> [@Stalin](#):
>
> [2023-04-04T13:22:20,985][INFO][o.e.m.j.JvmGcMonitorService] [ELK-01] [gc][old][61268][6820] duration [5s], collections [1]/[5.5s], total [5s]/[8.5m], memory [3.6gb]-\>[3.3gb]/[3.9gb], all\_pools {[young] [229.8mb]-\>[5mb]/[532.5mb]}{[survivor] [42.7mb]-\>[0b]/[66.5mb]}{[old] [3.3gb]-\>[3.3gb]/[3.3gb]}
> [@Stalin](#):
>
> Caused by: org.elasticsearch.common.breaker.CircuitBreakingException: [parent] Data too large, data for [\] would be [4014880416/3.7gb], which is larger than the limit of [4013975142/3.7gb], real usage: [4014863976/3.7gb], new bytes reserved: [16440/16kb]
You are having problems with high heap usage and slow GC. What is the full output of the [cluster stats API](https://www.elastic.co/guide/en/elasticsearch/reference/8.6/cluster-stats.html)?
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [April 4, 2023, 7:49pm UTC](https://discuss.elastic.co/t/elastic-cluster-connection-issue/327593/6 "2023-04-04T19:49:02Z")
Also please format your code/logs/config using the `` button, or markdown style back ticks. It helps to make things easy to read which helps us help you 🙂
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [May 2, 2023, 7:49pm UTC](https://discuss.elastic.co/t/elastic-cluster-connection-issue/327593/7 "2023-05-02T19:49:41Z")
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