John Spray 975f8ac658 tests: add test_compaction_l0_memory (#8403) ...

This test reproduces the case of a writer creating a deep stack of L0
layers. It uses realistic layer sizes and writes several gigabytes of
data, therefore runs as a performance test although it is validating
memory footprint rather than performance per se.

It acts a regression test for two recent fixes:
- https://github.com/neondatabase/neon/pull/8401
- https://github.com/neondatabase/neon/pull/8391

In future it will demonstrate the larger improvement of using a k-merge
iterator for L0 compaction (#8184)

This test can be extended to enforce limits on the memory consumption of
other housekeeping steps, by restarting the pageserver and then running
other things to do the same "how much did RSS increase" measurement.

2024-07-17 17:35:27 +00:00

..

__init__.py

tests: make neon_fixtures a bit thinner by splitting out some pageserver related helpers (#3977)

2023-04-07 13:47:28 +03:00

allowed_errors.py

tests: allow-list neon_local endpoint errors from storage controller (#8123)

2024-06-21 17:23:31 +00:00

common_types.py

python: allow using allowed_errors.py (#7719)

2024-05-13 15:16:23 +03:00

http.py

tests: add test_compaction_l0_memory (#8403)

2024-07-17 17:35:27 +00:00

many_tenants.py

pageserver: downgrade stale generation messages to INFO (#8256)

2024-07-04 15:05:41 +01:00

remote_storage.py

python: allow using allowed_errors.py (#7719)

2024-05-13 15:16:23 +03:00

utils.py

Restore running xacts from CLOG on replica startup (#7288)

2024-07-01 12:58:12 +03:00