seaweedfs/weed/command/mount.go

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package command
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import (
"fmt"
"strconv"
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"strings"
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)
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type MountOptions struct {
filer *string
filerGrpcPort *int
filerMountRootPath *string
dir *string
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dirListingLimit *int
collection *string
replication *string
ttlSec *int
chunkSizeLimitMB *int
dataCenter *string
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}
var (
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mountOptions MountOptions
mountCpuProfile *string
mountMemProfile *string
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)
func init() {
cmdMount.Run = runMount // break init cycle
mountOptions.filer = cmdMount.Flag.String("filer", "localhost:8888", "weed filer location")
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mountOptions.filerGrpcPort = cmdMount.Flag.Int("filer.grpc.port", 0, "filer grpc server listen port, default to http port + 10000")
mountOptions.filerMountRootPath = cmdMount.Flag.String("filer.path", "/", "mount this remote path from filer server")
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mountOptions.dir = cmdMount.Flag.String("dir", ".", "mount weed filer to this directory")
mountOptions.dirListingLimit = cmdMount.Flag.Int("dirListLimit", 100000, "limit directory listing size")
mountOptions.collection = cmdMount.Flag.String("collection", "", "collection to create the files")
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mountOptions.replication = cmdMount.Flag.String("replication", "", "replication(e.g. 000, 001) to create to files. If empty, let filer decide.")
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mountOptions.ttlSec = cmdMount.Flag.Int("ttl", 0, "file ttl in seconds")
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mountOptions.chunkSizeLimitMB = cmdMount.Flag.Int("chunkSizeLimitMB", 4, "local write buffer size, also chunk large files")
mountOptions.dataCenter = cmdMount.Flag.String("dataCenter", "", "prefer to write to the data center")
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mountCpuProfile = cmdMount.Flag.String("cpuprofile", "", "cpu profile output file")
mountMemProfile = cmdMount.Flag.String("memprofile", "", "memory profile output file")
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}
var cmdMount = &Command{
UsageLine: "mount -filer=localhost:8888 -dir=/some/dir",
Short: "mount weed filer to a directory as file system in userspace(FUSE)",
Long: `mount weed filer to userspace.
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Pre-requisites:
1) have SeaweedFS master and volume servers running
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2) have a "weed filer" running
These 2 requirements can be achieved with one command "weed server -filer=true"
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This uses github.com/seaweedfs/fuse, which enables writing FUSE file systems on
Linux, and OS X.
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On OS X, it requires OSXFUSE (http://osxfuse.github.com/).
`,
}
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func parseFilerGrpcAddress(filer string, optionalGrpcPort int) (filerGrpcAddress string, err error) {
hostnameAndPort := strings.Split(filer, ":")
if len(hostnameAndPort) != 2 {
return "", fmt.Errorf("The filer should have hostname:port format: %v", hostnameAndPort)
}
filerPort, parseErr := strconv.ParseUint(hostnameAndPort[1], 10, 64)
if parseErr != nil {
return "", fmt.Errorf("The filer filer port parse error: %v", parseErr)
}
filerGrpcPort := int(filerPort) + 10000
if optionalGrpcPort != 0 {
filerGrpcPort = optionalGrpcPort
}
return fmt.Sprintf("%s:%d", hostnameAndPort[0], filerGrpcPort), nil
}