How to upgrade elastic search from 1.7.x to 7.0? - elasticsearch

I am in need of a solution to upgrade/migrate elasticsearch from 1.7.6 to 7.0 with all the data and the reports. Is there any way to do it?
Thanks in advance.

You have to install elastic search 7.0 and reindex the data again.
You can't just migrate the old indexes of elastic search 1.7 to elastic search 7.0.
Elasticsearch can read indices created in the previous major version.
If you have indices created in 5.x or before, you must reindex or
delete them before upgrading to 7.1.1. Elasticsearch nodes will fail
to start if incompatible indices are present. Snapshots of 5.x or
earlier indices cannot be restored to a 7.x cluster even if they were
created by a 6.x cluster.
Refer elastic search documentation

Related

Upgrade Elasticsearch from 5 to 7

I want to upgrade my single node elasticsearch from version 5.30 to 7.2. What is the best possible ways of doing it?
Please follow the elasticsearch official document https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-upgrade.html for upgrading your elasticsearch version.
Some important points to take care from upgrading 5.x to 7.3:
Elasticsearch can read indices created in the previous major version. If you have indices created in 5.x or before, you must reindex or delete them before upgrading to 7.3.1. Elasticsearch nodes will fail to start if incompatible indices are present.
Take care of things mentioned in https://www.elastic.co/guide/en/elasticsearch/reference/current/setup-upgrade.html#_preparing_to_upgrade
Let me know if you need additional information.

How to migrate elasticsearch indices from version 5.6.2 to 6.8?

I want to update all elasticsearch indices from elasticsearch 5.6.2 to 6.8 version.
I don't want to use X-PACK for migration.
I am not using any elastic products.
So, Is there any proper guideline of way for this migration?
I can do it manually like write new mappings without type for my existing indices and then dump documents from my current indices to new one.
But I've more than 150 indices and it will take time to create new mappings and migrate it manually.
Elastic is the company behind Elasticsearch, so by using that you are using an Elastic product ;-)
The only upgrade assistant I'm aware of is in the free Basic (X-Pack) version of Kibana. Otherwise you'll have to manually run through the features described in https://www.elastic.co/guide/en/kibana/6.0/xpack-upgrade-assistant.html.

how to keep elasticsearch's indexes while updating from version 1.5 to 5.6.1?

I have Elasticsearch 1.5 installed on my machine, I am planning to migrate to Elasticsearch 5.6.1, how can I make it without losing my indexes.
From 1.x to 5.x you need to reindex to upgrade. You won't lose any of your data. Follow this link

Which version of Kibana is to be used with Elastic Search 5.1?

I am confused in choosing the right version of Kibana with Elastic Search 5.1.
Is it necessary to use Kibana 5.1 with Elastic Search 5.1 or can I use any version? Please suggest.
Thanks
As mentioned in the official Kibana documentation:
Kibana should be configured to run against an Elasticsearch node of the same version. This is the officially supported configuration.
Running different major version releases of Kibana and Elasticsearch (e.g. Kibana 5.x and Elasticsearch 2.x) is not supported, nor is running a minor version of Kibana that is newer than the version of Elasticsearch (e.g. Kibana 5.1 and Elasticsearch 5.0).
However, in order to facilitate an upgrade process where Elasticsearch is upgraded first, you can run a minor version of Elasticsearch that is higher than Kibana (e.g. Kibana 5.0 and Elasticsearch 5.1). But this should only be temporary

ElasticSearch Upgrade 1.x to 6.x

We are using ElasticSearch 1.x on production for sometime now with millions of records.
We want to upgrade the version from 1.x to 6.x as:
There have been multiple updates by the company and the support for older versions is discontinued.
1.x does not support Kibana.
What's the best way to do it with explicit steps on data security?
Thanks!
I've recently did a migration from Elasticsearch 1.5 to 6.2.
Steps, that needs to be performed:
Update the mappings, there are a lot of changes that happened between those 2 versions (just as an example _all field is disable starting from 6.0). The official documentation should help you here.
After you updated the mappings you would need another cluster set up with desired version of Elasticsearch. Also update if needed your Logstash/Kibana.
Enable it to access your old cluster by adding your old cluster to the reindex.remote.whitelist in elasticsearch.yml, by doing: reindex.remote.whitelist: oldhost:9200
For each index that you need to migrate, you would need to manually create a new index in your new сluster with updated mappings from #1
Reindex from remote to pull documents from the old index into the new 6.x index
Full documentation regarding this one is available here - https://www.elastic.co/guide/en/elasticsearch/reference/current/reindex-upgrade-remote.html

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