Avi Kivity 9d384e3af2 Merge 'Backport "reader_concurrency_semaphore: don't evict inactive readers needlessly" to branch-5.2' from Botond Dénes ...

The patch doesn't apply cleanly, so a targeted backport PR was necessary.
I also needed to cherry-pick two patches from https://github.com/scylladb/scylladb/pull/13255 that the backported patch depends on. Decided against backporting the entire https://github.com/scylladb/scylladb/pull/13255 as it is quite an intrusive change.

Fixes: https://github.com/scylladb/scylladb/issues/11803

Closes #13515

* github.com:scylladb/scylladb:
  reader_concurrency_semaphore: don't evict inactive readers needlessly
  reader_concurrency_semaphore: add stats to record reason for queueing permits
  reader_concurrency_semaphore: can_admit_read(): also return reason for rejection

2023-04-17 12:25:21 +03:00

..

alternator

test/alternator: fix flaky test for partition-tombstone scan

2023-04-14 11:54:45 +03:00

boost

reader_concurrency_semaphore: don't evict inactive readers needlessly

2023-04-14 10:37:30 +03:00

broadcast_tables

test.py: harmonize topology logs with test.py format

2023-01-11 10:09:42 +01:00

cql

service: storage_proxy: sequence CDC preimage select with Paxos learn

2023-03-21 20:23:19 +02:00

cql-pytest

cql: USING TTL 0 means unlimited, not default TTL

2023-04-17 10:41:08 +03:00

lib

sstables: Temporarily disable loading of first and last position metadata

2023-02-27 08:58:34 +02:00

manual

code: Use http::re(quest|ply) instead of httpd:: ones

2022-12-01 17:33:35 +02:00

perf

replica: Adapt table::active_memtable() to compaction groups

2022-12-19 11:15:14 -03:00

pylib

test/pylib: put UNIX-domain socket in /tmp

2023-02-07 17:12:14 +01:00

raft

raft: introduce not_a_member error and return it when non member tries to do add/modify_config

2022-12-05 17:11:04 +01:00

redis

test/{alternator,redis}: stop using deprecated "disutils" package

2022-07-11 08:00:45 +03:00

resource

wasm: test instances reuse

2022-07-20 18:19:25 +02:00

rest_api

test: add test checking recursive task status

2023-01-11 12:34:17 +01:00

scylla-gdb

scylla-gdb.py: add scylla get-config-value gdb command

2022-12-21 03:05:56 -05:00

topology

test: test_topology: test for removing garbage group 0 members

2023-01-17 12:28:00 +01:00

topology_raft_disabled

Merge 'raft: improve group 0 reconfiguration failure handling' from Kamil Braun

2023-01-17 21:23:15 +01:00

unit

cross-shard-barrier: Capture shared barrier in complete

2022-09-16 08:21:02 +03:00

__init__.py

test.py: (pylib) add Scylla Server and Artifact Registry

2022-05-25 20:26:37 +03:00

pytest

test: (pytest) fix the pytest wrapper to work on Ubuntu

2022-10-20 15:53:24 +03:00