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Increase default compaction_period setting to 20 s.

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The previous default of 1 s caused excessive CPU usage when there were
a lot of projects. Polling every timeline once a second was too aggressive
so let's reduce it.

Fixes https://github.com/neondatabase/neon/issues/2542, but we
probably also want do to something so that we don't poll timelines
that have received no new WAL or layers since last check.
This commit is contained in:
Heikki Linnakangas
2022-10-06 18:42:05 +03:00
committed by Heikki Linnakangas
parent 687ba81366
commit 9e1eb69d55
2 changed files with 5 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
pageserver/src/tenant_config.rs
View File

@@ -24,7 +24,7 @@ pub mod defaults {
// This parameter determines L1 layer file size.
pub const DEFAULT_COMPACTION_TARGET_SIZE: u64 = 128 * 1024 * 1024;
pub const DEFAULT_COMPACTION_PERIOD: &str = "1 s";
pub const DEFAULT_COMPACTION_PERIOD: &str = "20 s";
pub const DEFAULT_COMPACTION_THRESHOLD: usize = 10;
pub const DEFAULT_GC_HORIZON: u64 = 64 * 1024 * 1024;

8
test_runner/regress/test_tenant_conf.py
View File

@@ -54,7 +54,7 @@ tenant_config={checkpoint_distance = 10000, compaction_target_size = 1048576}"""
for i in {
"checkpoint_distance": 10000,
"compaction_target_size": 1048576,
"compaction_period": 1,
"compaction_period": 20,
"compaction_threshold": 10,
"gc_horizon": 67108864,
"gc_period": 100,
@@ -74,7 +74,7 @@ tenant_config={checkpoint_distance = 10000, compaction_target_size = 1048576}"""
for i in {
"checkpoint_distance": 20000,
"compaction_target_size": 1048576,
"compaction_period": 1,
"compaction_period": 20,
"compaction_threshold": 10,
"gc_horizon": 67108864,
"gc_period": 30,
@@ -102,7 +102,7 @@ tenant_config={checkpoint_distance = 10000, compaction_target_size = 1048576}"""
for i in {
"checkpoint_distance": 15000,
"compaction_target_size": 1048576,
"compaction_period": 1,
"compaction_period": 20,
"compaction_threshold": 10,
"gc_horizon": 67108864,
"gc_period": 80,
@@ -125,7 +125,7 @@ tenant_config={checkpoint_distance = 10000, compaction_target_size = 1048576}"""
for i in {
"checkpoint_distance": 15000,
"compaction_target_size": 1048576,
"compaction_period": 1,
"compaction_period": 20,
"compaction_threshold": 10,
"gc_horizon": 67108864,
"gc_period": 80,