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fix: reduce idle runner polling by default

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Raise the default idle fetch backoff ceiling to reduce steady-state FetchTask traffic from idle runner fleets while keeping the value configurable for installations that need faster idle polling.

Fixes: https://gitea.com/gitea/runner/issues/762

Co-Authored-By: GPT-5 Codex <codex@openai.com>
This commit is contained in:
bircni
2026-07-03 21:56:15 +02:00
parent 0ee4643d4a
commit 3879f14d89
3 changed files with 8 additions and 2 deletions
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2
internal/pkg/config/config.example.yaml
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@@ -39,7 +39,7 @@ runner:
# The maximum interval for fetching the job from the Gitea instance. # The maximum interval for fetching the job from the Gitea instance.
# The runner uses exponential backoff when idle, increasing the interval up to this maximum. # The runner uses exponential backoff when idle, increasing the interval up to this maximum.
# Set to 0 or same as fetch_interval to disable backoff. # Set to 0 or same as fetch_interval to disable backoff.
fetch_interval_max: 5s fetch_interval_max: 1m
# While idle, remove stale bind-workdir task directories and orphaned host-mode # While idle, remove stale bind-workdir task directories and orphaned host-mode
# scratch directories (left behind when a host cleanup delete stalls) older than # scratch directories (left behind when a host cleanup delete stalls) older than
# this duration. Setting either workdir_cleanup_age or idle_cleanup_interval to 0 # this duration. Setting either workdir_cleanup_age or idle_cleanup_interval to 0

2
internal/pkg/config/config.go
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@@ -183,7 +183,7 @@ func LoadDefault(file string) (*Config, error) {
cfg.Runner.FetchInterval = 2 * time.Second cfg.Runner.FetchInterval = 2 * time.Second
} }
if cfg.Runner.FetchIntervalMax <= 0 { if cfg.Runner.FetchIntervalMax <= 0 {
cfg.Runner.FetchIntervalMax = 5 * time.Second cfg.Runner.FetchIntervalMax = time.Minute
} }
if cfg.Runner.WorkdirCleanupAge == 0 && !definedRunnerKeys["workdir_cleanup_age"] { if cfg.Runner.WorkdirCleanupAge == 0 && !definedRunnerKeys["workdir_cleanup_age"] {
cfg.Runner.WorkdirCleanupAge = 24 * time.Hour cfg.Runner.WorkdirCleanupAge = 24 * time.Hour

6
internal/pkg/config/config_test.go
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@@ -48,6 +48,12 @@ func TestLoadDefault_DefaultsWorkdirCleanupAge(t *testing.T) {
assert.Equal(t, 10*time.Minute, cfg.Runner.IdleCleanupInterval) assert.Equal(t, 10*time.Minute, cfg.Runner.IdleCleanupInterval)
} }
func TestLoadDefault_DefaultsIdleFetchBackoffMax(t *testing.T) {
cfg, err := LoadDefault("")
require.NoError(t, err)
assert.Equal(t, time.Minute, cfg.Runner.FetchIntervalMax)
}
func TestLoadDefault_UsesConfiguredWorkdirCleanupAge(t *testing.T) { func TestLoadDefault_UsesConfiguredWorkdirCleanupAge(t *testing.T) {
dir := t.TempDir() dir := t.TempDir()
path := filepath.Join(dir, "config.yaml") path := filepath.Join(dir, "config.yaml")