Elastic SQL CLI Error

Elastic Stack Elasticsearch
1

HI Team,

I am able to connect to Elastic sql CLI but while querying the index data getting below error. Could you please help me on this.

sql> select * from employee;
Communication error [Cannot POST address http://10.10.18.174:9200/_sql?error_trace (Unexpected end of file from server)]

Thanks,
Debasis

2

Hi Team,

Any update on the below request.

Thanks,
Debasis

3

Do you have access to curl on the same machine?

What does this give you?

curl http://10.10.18.174:9200/
4

@TimV Thanks for response.

We are getting below response while doing curl.

[root@cb-1 bin]# curl http://10.10.18.174:9200/
curl: (52) Empty reply from server

Thanks,
Debasis

5

The most likely cause is that your ES server is actually running with TLS and you need

curl https://10.10.18.174:9200/

If that works then you'll need to apply the same config to the SQL CLI

6

Hi @TimV ,

Still we are getting below error related to certificate in Elasticsearch.

[root@cb-1 bin]# ./elasticsearch-sql-cli https://elastic:elastic@10.10.18.174:9200 -c -d -v
sql>
| select * from employee;
Communication error [Cannot POST address https://10.10.18.174:9200/_sql?error_trace (PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target)]

Thanks,
Debasis

7

Your Elasticsearch nodes are using a certificate that was issued by a CA that isn't trusted by your JVM.

You'll need to use the -k option to provide a keystore (truststore) to the SQL CLI.

8

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