Problems upgrading cluster to ES 2.0

Elastic Stack Elasticsearch
1

Ive upgraded my 2 node cluster to Elasticsearch 2.0. However, it seems like it's having some issues migrating my data.

[2015-12-04 09:12:24,391][WARN ][indices.cluster          ] [olympus-es01] [sendforth] failed to add mapping [user], source [{"user":{"_id":{"store":true,"in                                                                                                                                                                dex":"not_analyzed"},"properties":{"credits":{"type":"long"},"date_created":{"type":"date","format":"dateOptionalTime"},"device_id":{"type":"string"},"enable                                                                                                                                                                d":{"type":"boolean"},"last_msg_forwarded":{"type":"date","format":"dateOptionalTime"},"msgs_forwarded":{"type":"long"},"path":{"type":"string"},"token":{"ty                                                                                                                                                                pe":"string"}}}}]
java.lang.IllegalArgumentException: Mapper for [_id] conflicts with existing mapping in other types:
[mapper [_id] has different [index] values, mapper [_id] has different [store] values]

That lead me to this github issue.

Does anyone have any suggestions on how to get around or resolve that issue?

2

You need to reindex!

Also, make sure you read release notes before upgrading, as you would have caught this one then :slight_smile:

1 Like
3

Thanks for the reply. I did read through the release notes but I guess I missed the part about no longer being able to customize _id.

4

Speaking of which. How exactly would I now reindex the data? Do I have to downgrade to the previous version of elasticsearch, reindex and then upgrade again or can I somehow do this without downgrading?