John Spray b95addddd5 pageserver: do not read redundant timeline_layers from IndexPart, so that we can remove it later (#4972) ...

## Problem

IndexPart contains two redundant lists of layer names: a set of the
names, and then a map of name to metadata.

We already required that all the layers in `timeline_layers` are also in
`layers_metadata`, in `initialize_with_current_remote_index_part`, so if
there were any index_part.json files in the field that relied on these
sets being different, they would already be broken.

## Summary of changes

`timeline_layers` is made private and no longer read at runtime. It is
still serialized, but not deserialized.

`disk_consistent_lsn` is also made private, as this field only exists
for convenience of humans reading the serialized JSON.

This prepares us to entirely remove `timeline_layers` in a future
release, once this change is fully deployed, and therefore no
pageservers are trying to read the field.

2023-08-21 14:29:36 +03:00

..

benches

remove LayerDescriptor and use LayerObject for tests (#4637)

2023-07-10 19:40:37 +03:00

ctl

Turn BlockCursor::{read_blob,read_blob_into_buf} async fn (#4905)

2023-08-14 17:20:37 +02:00

fixtures

walredo: simple tests and bench updates (#3045)

2023-01-16 18:24:45 +02:00

src

pageserver: do not read redundant timeline_layers from IndexPart, so that we can remove it later (#4972)

2023-08-21 14:29:36 +03:00

Cargo.toml

Limit concurrent compactions (#4777)

2023-07-25 10:19:04 +03:00