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Diffstat (limited to 'eth/backend.go')
-rw-r--r--eth/backend.go29
1 files changed, 29 insertions, 0 deletions
diff --git a/eth/backend.go b/eth/backend.go
index a4f656ecd..6ce0d0eb0 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -26,7 +26,9 @@ import (
"math/big"
"os"
"path/filepath"
+ "regexp"
"strings"
+ "syscall"
"time"
"github.com/ethereum/ethash"
@@ -62,6 +64,9 @@ const (
var (
jsonlogger = logger.NewJsonLogger()
+ datadirInUseErrNos = []uint{11, 32, 35}
+ portInUseErrRE = regexp.MustCompile("address already in use")
+
defaultBootNodes = []*discover.Node{
// ETH/DEV Go Bootnodes
discover.MustParseNode("enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303"), // IE
@@ -282,6 +287,17 @@ func New(config *Config) (*Ethereum, error) {
// Open the chain database and perform any upgrades needed
chainDb, err := newdb(filepath.Join(config.DataDir, "chaindata"))
if err != nil {
+ var ok bool
+ errno := uint(err.(syscall.Errno))
+ for _, no := range datadirInUseErrNos {
+ if errno == no {
+ ok = true
+ break
+ }
+ }
+ if ok {
+ err = fmt.Errorf("%v (check if another instance of geth is already running with the same data directory '%s')", err, config.DataDir)
+ }
return nil, fmt.Errorf("blockchain db err: %v", err)
}
if db, ok := chainDb.(*ethdb.LDBDatabase); ok {
@@ -296,6 +312,16 @@ func New(config *Config) (*Ethereum, error) {
dappDb, err := newdb(filepath.Join(config.DataDir, "dapp"))
if err != nil {
+ var ok bool
+ for _, no := range datadirInUseErrNos {
+ if uint(err.(syscall.Errno)) == no {
+ ok = true
+ break
+ }
+ }
+ if ok {
+ err = fmt.Errorf("%v (check if another instance of geth is already running with the same data directory '%s')", err, config.DataDir)
+ }
return nil, fmt.Errorf("dapp db err: %v", err)
}
if db, ok := dappDb.(*ethdb.LDBDatabase); ok {
@@ -553,6 +579,9 @@ func (s *Ethereum) Start() error {
})
err := s.net.Start()
if err != nil {
+ if portInUseErrRE.MatchString(err.Error()) {
+ err = fmt.Errorf("%v (possibly another instance of geth is using the same port)", err)
+ }
return err
}