ES upgrade 1.x to 5.x

[Balamurali]

Hi All,

Now we are using elasticsearch version 1.3.7, we are working on version up-gradation.

In our discussion, plan to check for upgrade 1.x to 5.x .

if we done with direct data migration to 5.x from 1.x, what are possibility of complexities need to face on during and after this up-gradation.

Please suggest us !!!

[warkolm (Mark Walkom)]

You cannot do that, see https://www.elastic.co/guide/en/elasticsearch/reference/5.4/setup-upgrade.html

[Balamurali]

But we can do direct reindex 1.x to 5.x right ? https://www.elastic.co/guide/en/elasticsearch/reference/5.4/reindex-upgrade.html

what are possibility of complexities need to face on during and after this up-gradation.

[dadoonet (David Pilato)]

The mapping probably is the tricky part.