Migrate from filesystem boltdb to object storage boltdb_shipper

[Juho Saarinen]

Hi,

My situation is, that we had old Loki setup like:

- from: 2020-01-01 # Some date in the past

  index:

    prefix: index_

    period: 48h

  object_store: filesystem

  schema: v11

  store: boltdb

I moved all chunks to object storage, and made new schema configuration to start collecting data to new indices:

- from: 2020-04-19 

  index:

    prefix: index_

    period: 24h

  object_store: gcs

  schema: v11

  store: boltdb-shipper

Issue is, that old logs are not searchable anymore. Is there some way to migrate old indices to boltdb-shipper format, or are those just going to be unavailable? Or boltdb-shipper to go through all chunks to build the indices for all.

I tried to change first index store and object store to gcs/boltdb-shipper, but loki just tells in log that table manager is creating table for those old indices, but nothing more.

Br,

Juho