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mini: expose -volume.max (#11100)

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mini hardcoded the per-directory volume limit to 0, so the volume server
always auto-sized it as free disk space divided by the volume size. That
sizing reserves a whole volume size for every writable volume, so a
workload spreading small objects over many buckets runs out of slots long
before the disk fills and assign starts failing with "no free volumes
left". Same name and semantics as the flag weed server already carries,
and still 0 (auto) by default.

Claude-Session: https://claude.ai/code/session_01BiQLeBvZLzG8XitjiypDKu
This commit is contained in:
Chris Lu
2026-09-02 09:46:27 -07:00
committed by GitHub
parent 1c57734e58
commit 398277a15d
1 changed files with 16 additions and 15 deletions
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weed/command/mini.go
+4 -3
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@@ -49,7 +49,6 @@ type MiniOptions struct {
const (
bytesPerMB = 1024 * 1024 // Bytes per MB
miniVolumeMaxDataVolumeCounts = "0" // auto-configured based on free disk space
miniVolumeMinFreeSpace = "1" // 1% minimum free space
minVolumeSizeMB = 64 // Minimum volume size in MB
defaultMiniVolumeSizeMB = 128 // Default volume size for mini mode
@@ -71,6 +70,7 @@ var (
miniEnableS3 *bool
miniEnableAdminUI *bool
miniS3IamReadOnly *bool
miniVolumeMaxDataVolumeCounts *string
// MiniClusterCtx is the context for the mini cluster. If set, the mini cluster will stop when the context is cancelled.
MiniClusterCtx context.Context
@@ -343,7 +343,7 @@ S3 gateway, WebDAV gateway, and Admin UI).
All settings are optimized for small/dev use cases:
- Volume size limit: auto configured based on disk space (64MB-1024MB)
- Volume max: 0 (auto-configured based on free disk space)
- Volume max: 0 (auto-configured based on free disk space), see -volume.max
- Pre-stop seconds: 1 (faster shutdown)
- Master peers: none (single master mode)
@@ -468,6 +468,7 @@ func initMiniFilerFlags() {
// initMiniVolumeFlags initializes Volume server flag options
func initMiniVolumeFlags() {
miniVolumeMaxDataVolumeCounts = cmdMini.Flag.String("volume.max", "0", "maximum numbers of volumes, count[,count]... If set to zero, the limit will be auto configured as free disk space divided by volume size.")
miniOptions.v.port = cmdMini.Flag.Int("volume.port", 9340, "volume server http listen port")
miniOptions.v.portGrpc = cmdMini.Flag.Int("volume.port.grpc", 0, "volume server grpc listen port")
miniOptions.v.publicPort = cmdMini.Flag.Int("volume.port.public", 0, "volume server public port")
@@ -1433,7 +1434,7 @@ func startMiniServices(miniWhiteList []string, allServicesReady chan struct{}) {
defer reportMiniStopped("Volume")
startMiniService("Volume", func() {
minFreeSpaces := util.MustParseMinFreeSpace(miniVolumeMinFreeSpace, "")
miniOptions.v.startVolumeServer(*miniDataFolders, miniVolumeMaxDataVolumeCounts, *miniWhiteListOption, minFreeSpaces)
miniOptions.v.startVolumeServer(*miniDataFolders, *miniVolumeMaxDataVolumeCounts, *miniWhiteListOption, minFreeSpaces)
}, *miniOptions.v.port)
}()