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package command
import (
"time"
"github.com/seaweedfs/seaweedfs/weed/util/grace"
)
var cmdWorker = &Command{
UsageLine: "worker -admin=<admin_server> [-id=<worker_id>] [-jobType=vacuum,volume_balance,erasure_coding] [-workingDir=<path>] [-heartbeat=15s] [-reconnect=5s] [-maxDetect=1] [-maxExecute=4] [-metricsPort=<port>] [-metricsIp=<ip>] [-debug]",
Short: "start a plugin.proto worker process",
Long: `Start an external plugin worker using weed/pb/plugin.proto over gRPC.
This command provides vacuum, volume_balance, and erasure_coding job type
contracts with the plugin stream runtime, including descriptor delivery,
heartbeat/load reporting, detection, and execution.
Behavior:
- Use -jobType to choose one or more plugin job handlers (comma-separated list)
- Use -workingDir to persist plugin.worker.id for stable worker identity across restarts
- Use -metricsPort/-metricsIp to expose /health, /ready, and /metrics
Examples:
weed worker -admin=localhost:23646
weed worker -admin=localhost:23646 -jobType=volume_balance
weed worker -admin=localhost:23646 -jobType=vacuum,volume_balance
weed worker -admin=localhost:23646 -jobType=erasure_coding
weed worker -admin=admin.example.com:23646 -id=plugin-vacuum-a -heartbeat=10s
weed worker -admin=localhost:23646 -workingDir=/var/lib/seaweedfs-plugin
weed worker -admin=localhost:23646 -metricsPort=9327 -metricsIp=0.0.0.0
`,
}
var (
workerAdminServer = cmdWorker.Flag.String("admin", "localhost:23646", "admin server address")
workerID = cmdWorker.Flag.String("id", "", "worker ID (auto-generated when empty)")
workerWorkingDir = cmdWorker.Flag.String("workingDir", "", "working directory for persistent worker state")
workerJobType = cmdWorker.Flag.String("jobType", defaultPluginWorkerJobTypes, "job types to serve (comma-separated list)")
workerHeartbeat = cmdWorker.Flag.Duration("heartbeat", 15*time.Second, "heartbeat interval")
workerReconnect = cmdWorker.Flag.Duration("reconnect", 5*time.Second, "reconnect delay")
workerMaxDetect = cmdWorker.Flag.Int("maxDetect", 1, "max concurrent detection requests")
workerMaxExecute = cmdWorker.Flag.Int("maxExecute", 4, "max concurrent execute requests")
workerAddress = cmdWorker.Flag.String("address", "", "worker address advertised to admin")
workerMetricsPort = cmdWorker.Flag.Int("metricsPort", 0, "Prometheus metrics listen port")
workerMetricsIp = cmdWorker.Flag.String("metricsIp", "0.0.0.0", "Prometheus metrics listen IP")
workerDebug = cmdWorker.Flag.Bool("debug", false, "serves runtime profiling data via pprof on the port specified by -debug.port")
workerDebugPort = cmdWorker.Flag.Int("debug.port", 6060, "http port for debugging")
)
func init() {
cmdWorker.Run = runWorker
}
func runWorker(cmd *Command, args []string) bool {
if *workerDebug {
grace.StartDebugServer(*workerDebugPort)
}
return runPluginWorkerWithOptions(pluginWorkerRunOptions{
AdminServer: *workerAdminServer,
WorkerID: *workerID,
WorkingDir: *workerWorkingDir,
JobTypes: *workerJobType,
Heartbeat: *workerHeartbeat,
Reconnect: *workerReconnect,
MaxDetect: *workerMaxDetect,
MaxExecute: *workerMaxExecute,
Address: *workerAddress,
MetricsPort: *workerMetricsPort,
MetricsIP: *workerMetricsIp,
})
}