Upgrade ES from 2.3.5 to 6.0/ 6.2

Elastic Stack Elasticsearch
1

Hello Everyone,

I am trying to upgrade ES from 2.3.5 to 6.0 / 6.2.
I have followed instruction as per the interactive guide on the elastic portal.

I am successfully able to upgrade from 2.3.5 to 5.6.7, i was successfully able to re-index the indices.

but when i migrate the newly reindex indices, they dont show up in 6.0 / 6.2 instance.
any input will be higly appriciated.

cheers,
sapan

2

Hello Everyone,
I copied the config and data directories from the 5.6.7 to the 6.0.
after starting ES 6.0, i dont see the indices.

any thoughts,

cheers,
sapan

3

Hi All,

while starting ES 6.0/6.2 from command line, i get the following message
[2018-02-28T14:44:10,806][INFO ][o.e.g.GatewayService ] [0IFoyuX] recovered
[0] indices into cluster_state.

highlighting that no index were recovered. while when i start ES 5.6 it says
[2018-02-28T14:49:40,547][INFO ][o.e.g.GatewayService ] [poOQqu8] recovered
[12] indices into cluster_state

any pointers whey these indexes are not recovered in 6.0

thanks,
swapnil

4

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