Files
s3/weed/shell/command_ec_balance.go
zooqueen dd74d3e6d6 Replace AGPL MinIO fork with Apache-2.0 SeaweedFS fork; rebrand CLI weed->s3
hanzoai/s3 was an AGPL-3.0 MinIO fork whose network-copyleft blocks embedding
and reselling as a managed service. Replace it wholesale with a fork of
SeaweedFS (github.com/seaweedfs/seaweedfs, Apache-2.0, Go) which ships a
built-in S3 gateway + Filer.

- License: AGPL-3.0 -> Apache-2.0 (upstream LICENSE kept verbatim, incl.
  "Copyright 2025 Chris Lu"); NOTICE added crediting SeaweedFS. No AGPL/BUSL/
  SSPL/GPL or enterprise ("ee") files remain.
- Module: go.mod path set to github.com/hanzoai/s3 with a self-replace
  (replace github.com/seaweedfs/seaweedfs => ./) so the ~1800 internal Go files
  keep their upstream import paths with zero churn. Internal identifiers and
  import paths are intentionally NOT renamed.
- CLI rebrand: the binary is built as `s3` (was `weed`); root usage, per-command
  help/usage/flag strings, shell autocomplete program name, and the product name
  in CLI output now read "Hanzo S3" / `s3`. Users never see `weed`.
  (e.g. `s3 server`, `s3 filer`, `s3 master`, `s3 volume`, `s3 s3`, `s3 mount`.)
- Build: `make` (or `go build -o s3 ./weed`) builds the `s3` binary green;
  `cmd/weed-db` and `cmd/weed-sql` also build; `go vet ./weed/command/` clean.
- README/LLM.md rewritten for Hanzo S3; AGENTS.md/CLAUDE.md symlinks preserved.
- Dropped a 33MB prebuilt Mach-O `stress` binary upstream had committed; `.gitignore`
  updated to ignore the `s3` build output.
2026-06-18 23:41:25 -07:00

80 lines
2.6 KiB
Go

package shell
import (
"flag"
"io"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/storage/types"
)
func init() {
Commands = append(Commands, &commandEcBalance{})
}
type commandEcBalance struct {
}
func (c *commandEcBalance) Name() string {
return "ec.balance"
}
func (c *commandEcBalance) Help() string {
return `balance all ec shards among all racks and volume servers
ec.balance [-c EACH_COLLECTION|<collection_name>] [-apply] [-dataCenter <data_center>] [-shardReplicaPlacement <replica_placement>] [-diskType <disk_type>]
Options:
-diskType: the disk type for EC shards (hdd, ssd, or empty for default hdd)
Algorithm:
` + ecBalanceAlgorithmDescription
}
func (c *commandEcBalance) HasTag(CommandTag) bool {
return false
}
func (c *commandEcBalance) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
balanceCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
collection := balanceCommand.String("collection", "EACH_COLLECTION", "collection name, or \"EACH_COLLECTION\" for each collection")
dc := balanceCommand.String("dataCenter", "", "only apply the balancing for this dataCenter")
shardReplicaPlacement := balanceCommand.String("shardReplicaPlacement", "", "replica placement for EC shards, or master default if empty")
diskTypeStr := balanceCommand.String("diskType", "", "the disk type for EC shards (hdd, ssd, or empty for default hdd)")
maxParallelization := balanceCommand.Int("maxParallelization", DefaultMaxParallelization, "run up to X tasks in parallel, whenever possible")
applyBalancing := balanceCommand.Bool("apply", false, "apply the balancing plan")
// TODO: remove this alias
applyBalancingAlias := balanceCommand.Bool("force", false, "apply the balancing plan (alias for -apply)")
if err = balanceCommand.Parse(args); err != nil {
return nil
}
handleDeprecatedForceFlag(writer, balanceCommand, applyBalancingAlias, applyBalancing)
infoAboutSimulationMode(writer, *applyBalancing, "-apply")
if err = commandEnv.confirmIsLocked(args); err != nil {
return
}
var collections []string
if *collection == "EACH_COLLECTION" {
collections, err = ListCollectionNames(commandEnv, false, true)
if err != nil {
return err
}
} else {
collections = append(collections, *collection)
}
glog.V(1).Infof("balanceEcVolumes collections %+v\n", len(collections))
rp, err := parseReplicaPlacementArg(commandEnv, *shardReplicaPlacement)
if err != nil {
return err
}
diskType := types.ToDiskType(*diskTypeStr)
return EcBalance(commandEnv, collections, *dc, rp, diskType, *maxParallelization, *applyBalancing, nil)
}