Files
neon/pageserver
Alex Chi Z. fb0406e9d2 refactor(pageserver): refactor split writers using batch layer writer (#9493)
part of https://github.com/neondatabase/neon/issues/9114,
https://github.com/neondatabase/neon/issues/8836,
https://github.com/neondatabase/neon/issues/8362

The split layer writer code can be used in a more general way: the
caller puts unfinished writers into the batch layer writer and let batch
layer writer to ensure the atomicity of the layer produces.

## Summary of changes

* Add batch layer writer, which atomically finishes the layers.
`BatchLayerWriter::finish` is simply a copy-paste from previous split
layer writers.
* Refactor split writers to use the batch layer writer.
* The current split writer tests cover all code path of batch layer
writer.

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Signed-off-by: Alex Chi Z <chi@neon.tech>
2024-10-24 10:49:54 -04:00
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