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add master profiling option

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This commit is contained in:
Chris Lu 2016-07-03 15:39:57 -07:00
parent d981eb282f
commit b38ff39e8b
1 changed files with 10 additions and 0 deletions
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10
weed/command/master.go
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@ -4,6 +4,7 @@ import (
"net/http"
"os"
"runtime"
"runtime/pprof"
"strconv"
"strings"
"time"
@ -42,6 +43,7 @@ var (
garbageThreshold = cmdMaster.Flag.String("garbageThreshold", "0.3", "threshold to vacuum and reclaim spaces")
masterWhiteListOption = cmdMaster.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
masterSecureKey = cmdMaster.Flag.String("secure.secret", "", "secret to encrypt Json Web Token(JWT)")
masterCpuProfile = cmdMaster.Flag.String("cpuprofile", "", "cpu profile output file")
masterWhiteList []string
)
@ -51,6 +53,14 @@ func runMaster(cmd *Command, args []string) bool {
*mMaxCpu = runtime.NumCPU()
}
runtime.GOMAXPROCS(*mMaxCpu)
if *masterCpuProfile != "" {
f, err := os.Create(*masterCpuProfile)
if err != nil {
glog.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
if err := util.TestFolderWritable(*metaFolder); err != nil {
glog.Fatalf("Check Meta Folder (-mdir) Writable %s : %s", *metaFolder, err)
}