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Decompress unencrypted LUI object #862

Closed F78aPg0zjWnRKWkYrBd6lShvmAYl8doniMtEnFN closed 1 year ago

F78aPg0zjWnRKWkYrBd6lShvmAYl8doniMtEnFN commented 1 year ago

Fabric 6.5.9 + AWS S3

How can an LUI object copied/retrieved from S3 by decompressed on the CLI? For instance, to be inspected/checked by sqlite3 tool.

Note: LUIs are not encrypted.

I tried lz4 tools but they fail to process header (error 44).

Does Fabric uses a proprietary decoder to perform block/frame resolution? Please advise. Thanks.

i7QC2njzxHCc0LYBqCh0HQf30xF2DYuJjqtFbNe commented 1 year ago

It doesn't matter if mdb is stored in S3 or Cassandra in both cases file should be available in /dev/shm uncompressed after get command.

F78aPg0zjWnRKWkYrBd6lShvmAYl8doniMtEnFN commented 1 year ago

But that's not what I'm asking. What if I'm not going to get the LUI from Fabric? I just want to inspect it, directly, using sqlite3.

i7QC2njzxHCc0LYBqCh0HQf30xF2DYuJjqtFbNe commented 1 year ago

Can you share an example of such a blob so we will evaluate why you don't manage to query it?

Furthermore, please explain why you try to access directly the blob from S3? it is not our recommendation, It is better to use Fabric sync process so it handle all the side effects such as : decryption, uncompress, etc..