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copilot/enable-native-histogram-support
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Amnon Heiman 607ca719d7 Enable prometheus_allow_protobuf by default 
Change the prometheus_allow_protobuf configuration to true by default.
This allows ScyllaDB server to serve Prometheus protobuf format (enables
native histogram support) if asked so by the monitoring server.

Update config help text/docs to reflect protobuf support (drop
“experimental” wording).

Add cluster tests to validate the default is enabled, can be overridden,
and /metrics returns protobuf when requested via Accept header (and
falls back to text when disabled).

Fixes #27817
co-Author: mykaul <mykaul@scylladb.com>

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2026-01-19 09:40:49 +02:00
..
commitlog
db::commitlog: Fix sanity check error on race between segment flushing and oversized alloc
2026-01-09 14:06:58 +02:00
functions
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
hints
db/hints: Prevent draining hints before hint replay is allowed
2026-01-04 16:54:05 +02:00
marshal
type_parser: support vector type
2025-01-28 21:14:49 +01:00
snapshot
backup: process_snapshot_dir: use relative-path based file_stat
2026-01-04 11:05:56 +02:00
tags
Remove const & from tags_extension constructor
2025-09-14 13:32:21 +03:00
view
treewide: #include Seastar headers with angle brackets
2026-01-13 14:56:15 +02:00
auth_version.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
batchlog_manager.cc
treewide: use coroutine::maybe_yield in coroutines
2026-01-12 10:38:47 +01:00
batchlog_manager.hh
test/boost/batchlog_manager_test: add test for batchlog cleanup
2025-12-02 14:21:26 +02:00
batchlog.hh
db,service: switch to system.batchlog_v2
2025-12-02 14:21:26 +02:00
cache_mutation_reader.hh
treewide: Move query related files to a new query directory
2025-09-16 23:40:47 +03:00
cache_tracker.hh
sstables: use BTI index for queries, when present and enabled
2025-09-29 13:01:21 +02:00
chained_delegating_reader.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
CMakeLists.txt
Drop legacy schema support
2025-12-07 00:09:13 +02:00
compaction_history_entry.hh
system_keyspace: Upgrade compaction_history table
2025-05-14 08:32:05 +02:00
config.cc
Enable prometheus_allow_protobuf by default
2026-01-19 09:40:49 +02:00
config.hh
alternator: add optional listeners for proxy protocol v2
2026-01-13 09:59:24 +02:00
consistency_level_type.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
consistency_level_validations.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
consistency_level.cc
consistency_level: drop templates since the same types of ranges are used by all the callers
2025-01-16 16:37:06 +02:00
consistency_level.hh
tree: remove unused "#include"s
2025-01-28 14:12:06 +03:00
corrupt_data_handler.cc
db: introduce corrupt_data_handler
2025-06-24 14:57:00 +03:00
corrupt_data_handler.hh
db: introduce corrupt_data_handler
2025-06-24 14:57:00 +03:00
cql_type_parser.cc
tree: Remove unused boost headers
2025-02-15 20:32:22 +02:00
cql_type_parser.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
data_listeners.cc
code: Replace distributed<> with sharded<>
2025-09-19 12:22:51 +02:00
data_listeners.hh
code: Replace distributed<> with sharded<>
2025-09-19 12:22:51 +02:00
extensions.cc
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
extensions.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
heat_load_balance.cc
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
heat_load_balance.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
large_data_handler.cc
logging: Add row count to large partition warning message
2025-06-26 12:25:38 +02:00
large_data_handler.hh
treewide: Replace __builtin_expect with (un)likely
2025-07-03 13:34:04 +03:00
object_storage_endpoint_param.cc
object_storage: Create s3 client with "extended" endpoint name
2026-01-13 13:24:06 +03:00
object_storage_endpoint_param.hh
object_storage: Create s3 client with "extended" endpoint name
2026-01-13 13:24:06 +03:00
operation_type.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
partition_snapshot_row_cursor.hh
partition_snapshot_row_cursor: Clarify non-obvious semantic difference of range_tombstone()
2025-12-06 01:03:10 +01:00
paxos_grace_seconds_extension.hh
schema: deprecate schema_extension
2025-03-19 20:36:16 +02:00
per_partition_rate_limit_extension.hh
schema: deprecate schema_extension
2025-03-19 20:36:16 +02:00
per_partition_rate_limit_info.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
per_partition_rate_limit_options.cc
tree: Remove unused boost headers
2025-02-15 20:32:22 +02:00
per_partition_rate_limit_options.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
rate_limiter.cc
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
rate_limiter.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
read_context.hh
treewide: Move query related files to a new query directory
2025-09-16 23:40:47 +03:00
read_repair_decision.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
row_cache.cc
Attach names to allocating sections for better debuggability
2025-12-07 14:14:25 +02:00
row_cache.hh
db: optimize cache invalidation following repair/streaming
2025-09-14 19:48:14 +03:00
schema_applier.cc
treewide: use coroutine::maybe_yield in coroutines
2026-01-12 10:38:47 +01:00
schema_applier.hh
db: schema_applier: extract cdc tables
2025-10-21 14:13:43 +02:00
schema_features.hh
feature_service: add TABLET_OPTIONS cluster schema feature
2025-02-06 08:55:51 +02:00
schema_tables.cc
Drop legacy schema support
2025-12-07 00:09:13 +02:00
schema_tables.hh
Drop legacy schema support
2025-12-07 00:09:13 +02:00
size_estimates_virtual_reader.cc
sstables: make sstable::estimated_keys_for_range asynchronous
2025-09-29 13:01:21 +02:00
size_estimates_virtual_reader.hh
sstables: make sstable::estimated_keys_for_range asynchronous
2025-09-29 13:01:21 +02:00
snapshot-ctl.cc
Revert "Merge 'Add option to use sstable identifier in snapshot' from Benny Halevy"
2025-12-12 03:55:13 +00:00
snapshot-ctl.hh
Revert "Merge 'Add option to use sstable identifier in snapshot' from Benny Halevy"
2025-12-12 03:55:13 +00:00
system_distributed_keyspace.cc
schema: Allow configuring consistency setting for a keyspace
2025-10-16 13:34:49 +03:00
system_distributed_keyspace.hh
db/system_distributed_keyspace: add shares column and upgrade code
2025-01-02 07:13:34 +01:00
system_keyspace_sstables_registry.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
system_keyspace_view_types.hh
view_builder: register view on all shards atomically
2025-09-21 10:39:05 +02:00
system_keyspace.cc
topology coordinator: complete pending operation for a replaced node
2026-01-14 13:11:27 +01:00
system_keyspace.hh
repair: Add tablet repair progress report support
2026-01-08 21:55:18 +02:00
tablet_options.cc
schema: add per-table tablet options
2025-02-06 08:55:51 +02:00
tablet_options.hh
schema: add per-table tablet options
2025-02-06 08:55:51 +02:00
timeout_clock.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00
tri_mode_restriction.hh
config: split tri_mode_restriction to a separate header
2025-08-27 13:47:04 +03:00
virtual_table.cc
readers/mutation_source: s/make_reader_v2/make_mutation_reader/
2025-05-09 07:53:29 -04:00
virtual_table.hh
virtual_tables: memtable_filling_virtual_table: Propagate permit to execute()
2025-04-09 20:21:51 +02:00
virtual_tables.cc
load_sketch: use tablet sizes in load computation
2025-12-27 10:37:23 +01:00
virtual_tables.hh
code: Replace distributed<> with sharded<>
2025-09-19 12:22:51 +02:00
write_type.hh
treewide: relicense to ScyllaDB-Source-Available-1.0
2024-12-18 17:45:13 +02:00