Installing elasticsearch 8.6.2 on a windows server with ealsticserach 7.6.1

[hadi_farzipour]

In our company we have been using Elasticsearch 7.6.1 for two years, right now we need to update it to version 8.6.2, however, we can not move to version 8.6.2 immediately, we need first run Elasticsearch 8.6.2 beside the older version and changing beats and agents configs, move to the newest version, however when I run \elasticserach8.6.2\bin\elastichserach.bat, I faced with the following error:

[ELK] fatal exception while booting Elasticsearch
java.lang.RuntimeException: org.elasticsearch.cli.UserException: will not overwrite keystore at [E:\Config\elasticsearch.keystore], because this incurs changing the file owner
at org.elasticsearch.bootstrap.Elasticsearch.initPhase2(Elasticsearch.java:150) ~[elasticsearch-8.6.2.jar:?]

The mentioned directory is where contains my previous Elasticsearch config files, I don't know how to make Elasticsearch 8.6.2 read configs from its own config files.

in additional I have installed ElasticSerach 7.6.1 with .msi file on windows operating system

[warkolm (Mark Walkom)]

It'd help if you could share your elasticsearch.yml from both versions.

[hadi_farzipour]

Elasticserach 7.6.2
Address: E:\config\elasticsearch.yml

bootstrap.memory_lock: false
cluster.initial_master_nodes:ELK
cluster.name: elasticsearch
http.port: 8606
network.host: 0.0.0.0
node.data: true
node.ingest: true
node.master: true
node.max_local_storage_nodes: 1
node.name: ELK
path.data: E:\Data
path.logs: E:\Logs
transport.tcp.port: 8300
xpack.license.self_generated.type: basic
xpack.security.enabled: false

For ElasticSerach 8.6.2 I have no configs and all lines are comments, because elasticsearch.bat have not been run yet.

[warkolm (Mark Walkom)]

@hadi_farzipour

The mentioned directory is where contains my previous Elasticsearch config files, I don't know how to make Elasticsearch 8.6.2 read configs from its own config files.

Did you see Install Elasticsearch with .zip on Windows | Elasticsearch Guide [8.7] | Elastic?

[hadi_farzipour]

I faced the following error when I run elasticsearch-8.7.0\bin>.\elasticsearch.bat

ERROR: will not overwrite keystore at [E:\Config\elasticsearch.keystore], because this incurs changing the file owner

the mentioned address belongs to elasticsearch 7.6.1, should I create a new Java environment manualy for new elasticsearch?

[hadi_farzipour]

Does anyone know what i should do in order to resolve this error?

[rugenl (Len Rugen)]

Are you trying to run both these on the same windows server? That is probably dangerous and this error is preventing your new system from destroying the old system!

You probably need to use a new path for everything, maybe E:/NewConfig, also E:NewData, E:/NewLogs.

Many configuration options have defaults if not specified in elasticsearch.yml. There used to be an elasticsearch_reference.yml (or simlar) file that listed all options, but it seems to have disappeared in current versions. It may get the location from the startup option location for elasticsearch.yml, yours seems to match.

But, don't trust your production data to net advise!

[hadi_farzipour]

My problem has been solved by following command on cmd prompt

set ES_PATH_CONF=D:\ELK8\elasticsearch-8.7.0\config