volume: proxy writes to remote volume server, with replication or not
the panic is triggered by uploading a file to a volume server not holding the designated replica.
2020-03-15 10:20:14.365488 I | http: panic serving 127.0.0.1:57124: runtime error: invalid memory address or nil pointer dereference
goroutine 119 [running]:
net/http.(*conn).serve.func1(0xc0001a8000)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1772 +0x139
panic(0x2316fe0, 0x3662900)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/runtime/panic.go:973 +0x396
github.com/chrislusf/seaweedfs/weed/topology.getWritableRemoteReplications(0xc00009c000, 0x2, 0x7ffeefbffbd2, 0xe, 0x0, 0xa, 0x0, 0x0, 0xbb4bf1f7)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:157 +0x53
github.com/chrislusf/seaweedfs/weed/topology.ReplicatedWrite(0x7ffeefbffbd2, 0xe, 0xc00009c000, 0xc000000002, 0xc000472750, 0xc0001b2200, 0x0, 0x1, 0x0)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:29 +0xc7
github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).PostHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers_write.go:52 +0x56f
github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).privateStoreHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers.go:37 +0x21f
net/http.HandlerFunc.ServeHTTP(0xc0004420e0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2012 +0x44
net/http.(*ServeMux).ServeHTTP(0xc0001fc800, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2387 +0x1a5
net/http.serverHandler.ServeHTTP(0xc0001781c0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2807 +0xa3
net/http.(*conn).serve(0xc0001a8000, 0x2934420, 0xc000212400)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1895 +0x86c
created by net/http.(*Server).Serve
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2933 +0x35c
Eg:
server A (datacenter 1) and server B (datacenter 2) hold replica (100) for volume 1.
If you upload a file with a key 1,xxxxx to server C (datacenter 3) will trigger the panic on server C.
The server C should either proxy upload file to the correct volume server or should return an HTTP error code and not panic.
5 years ago volume: proxy writes to remote volume server, with replication or not
the panic is triggered by uploading a file to a volume server not holding the designated replica.
2020-03-15 10:20:14.365488 I | http: panic serving 127.0.0.1:57124: runtime error: invalid memory address or nil pointer dereference
goroutine 119 [running]:
net/http.(*conn).serve.func1(0xc0001a8000)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1772 +0x139
panic(0x2316fe0, 0x3662900)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/runtime/panic.go:973 +0x396
github.com/chrislusf/seaweedfs/weed/topology.getWritableRemoteReplications(0xc00009c000, 0x2, 0x7ffeefbffbd2, 0xe, 0x0, 0xa, 0x0, 0x0, 0xbb4bf1f7)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:157 +0x53
github.com/chrislusf/seaweedfs/weed/topology.ReplicatedWrite(0x7ffeefbffbd2, 0xe, 0xc00009c000, 0xc000000002, 0xc000472750, 0xc0001b2200, 0x0, 0x1, 0x0)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:29 +0xc7
github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).PostHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers_write.go:52 +0x56f
github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).privateStoreHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers.go:37 +0x21f
net/http.HandlerFunc.ServeHTTP(0xc0004420e0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2012 +0x44
net/http.(*ServeMux).ServeHTTP(0xc0001fc800, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2387 +0x1a5
net/http.serverHandler.ServeHTTP(0xc0001781c0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2807 +0xa3
net/http.(*conn).serve(0xc0001a8000, 0x2934420, 0xc000212400)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1895 +0x86c
created by net/http.(*Server).Serve
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2933 +0x35c
Eg:
server A (datacenter 1) and server B (datacenter 2) hold replica (100) for volume 1.
If you upload a file with a key 1,xxxxx to server C (datacenter 3) will trigger the panic on server C.
The server C should either proxy upload file to the correct volume server or should return an HTTP error code and not panic.
5 years ago volume: proxy writes to remote volume server, with replication or not
the panic is triggered by uploading a file to a volume server not holding the designated replica.
2020-03-15 10:20:14.365488 I | http: panic serving 127.0.0.1:57124: runtime error: invalid memory address or nil pointer dereference
goroutine 119 [running]:
net/http.(*conn).serve.func1(0xc0001a8000)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1772 +0x139
panic(0x2316fe0, 0x3662900)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/runtime/panic.go:973 +0x396
github.com/chrislusf/seaweedfs/weed/topology.getWritableRemoteReplications(0xc00009c000, 0x2, 0x7ffeefbffbd2, 0xe, 0x0, 0xa, 0x0, 0x0, 0xbb4bf1f7)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:157 +0x53
github.com/chrislusf/seaweedfs/weed/topology.ReplicatedWrite(0x7ffeefbffbd2, 0xe, 0xc00009c000, 0xc000000002, 0xc000472750, 0xc0001b2200, 0x0, 0x1, 0x0)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:29 +0xc7
github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).PostHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers_write.go:52 +0x56f
github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).privateStoreHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers.go:37 +0x21f
net/http.HandlerFunc.ServeHTTP(0xc0004420e0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2012 +0x44
net/http.(*ServeMux).ServeHTTP(0xc0001fc800, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2387 +0x1a5
net/http.serverHandler.ServeHTTP(0xc0001781c0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2807 +0xa3
net/http.(*conn).serve(0xc0001a8000, 0x2934420, 0xc000212400)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1895 +0x86c
created by net/http.(*Server).Serve
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2933 +0x35c
Eg:
server A (datacenter 1) and server B (datacenter 2) hold replica (100) for volume 1.
If you upload a file with a key 1,xxxxx to server C (datacenter 3) will trigger the panic on server C.
The server C should either proxy upload file to the correct volume server or should return an HTTP error code and not panic.
5 years ago volume: proxy writes to remote volume server, with replication or not
the panic is triggered by uploading a file to a volume server not holding the designated replica.
2020-03-15 10:20:14.365488 I | http: panic serving 127.0.0.1:57124: runtime error: invalid memory address or nil pointer dereference
goroutine 119 [running]:
net/http.(*conn).serve.func1(0xc0001a8000)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1772 +0x139
panic(0x2316fe0, 0x3662900)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/runtime/panic.go:973 +0x396
github.com/chrislusf/seaweedfs/weed/topology.getWritableRemoteReplications(0xc00009c000, 0x2, 0x7ffeefbffbd2, 0xe, 0x0, 0xa, 0x0, 0x0, 0xbb4bf1f7)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:157 +0x53
github.com/chrislusf/seaweedfs/weed/topology.ReplicatedWrite(0x7ffeefbffbd2, 0xe, 0xc00009c000, 0xc000000002, 0xc000472750, 0xc0001b2200, 0x0, 0x1, 0x0)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/topology/store_replicate.go:29 +0xc7
github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).PostHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers_write.go:52 +0x56f
github.com/chrislusf/seaweedfs/weed/server.(*VolumeServer).privateStoreHandler(0xc0001513f0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/gopath/src/github.com/chrislusf/seaweedfs/weed/server/volume_server_handlers.go:37 +0x21f
net/http.HandlerFunc.ServeHTTP(0xc0004420e0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2012 +0x44
net/http.(*ServeMux).ServeHTTP(0xc0001fc800, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2387 +0x1a5
net/http.serverHandler.ServeHTTP(0xc0001781c0, 0x292bde0, 0xc0001fe2a0, 0xc0001b2200)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2807 +0xa3
net/http.(*conn).serve(0xc0001a8000, 0x2934420, 0xc000212400)
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:1895 +0x86c
created by net/http.(*Server).Serve
/home/travis/.gimme/versions/go1.14.linux.amd64/src/net/http/server.go:2933 +0x35c
Eg:
server A (datacenter 1) and server B (datacenter 2) hold replica (100) for volume 1.
If you upload a file with a key 1,xxxxx to server C (datacenter 3) will trigger the panic on server C.
The server C should either proxy upload file to the correct volume server or should return an HTTP error code and not panic.
5 years ago |
|
package topology
import ( "encoding/json" "errors" "fmt" "net/http" "net/url" "strconv" "strings"
"github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/operation" "github.com/chrislusf/seaweedfs/weed/security" "github.com/chrislusf/seaweedfs/weed/storage" "github.com/chrislusf/seaweedfs/weed/storage/needle" "github.com/chrislusf/seaweedfs/weed/util" )
func ReplicatedWrite(masterNode string, s *storage.Store, volumeId needle.VolumeId, n *needle.Needle, r *http.Request) (isUnchanged bool, err error) {
//check JWT
jwt := security.GetJwt(r)
// check whether this is a replicated write request
var remoteLocations []operation.Location if r.FormValue("type") != "replicate" { // this is the initial request
remoteLocations, err = getWritableRemoteReplications(s, volumeId, masterNode) if err != nil { glog.V(0).Infoln(err) return } }
// read fsync value
fsync := false if r.FormValue("fsync") == "true" { fsync = true }
if s.GetVolume(volumeId) != nil { isUnchanged, err = s.WriteVolumeNeedle(volumeId, n, fsync) if err != nil { err = fmt.Errorf("failed to write to local disk: %v", err) glog.V(0).Infoln(err) return } }
if len(remoteLocations) > 0 { //send to other replica locations
if err = distributedOperation(remoteLocations, s, func(location operation.Location) error { u := url.URL{ Scheme: "http", Host: location.Url, Path: r.URL.Path, } q := url.Values{ "type": {"replicate"}, "ttl": {n.Ttl.String()}, } if n.LastModified > 0 { q.Set("ts", strconv.FormatUint(n.LastModified, 10)) } if n.IsChunkedManifest() { q.Set("cm", "true") } u.RawQuery = q.Encode()
pairMap := make(map[string]string) if n.HasPairs() { tmpMap := make(map[string]string) err := json.Unmarshal(n.Pairs, &tmpMap) if err != nil { glog.V(0).Infoln("Unmarshal pairs error:", err) } for k, v := range tmpMap { pairMap[needle.PairNamePrefix+k] = v } }
// volume server do not know about encryption
_, err := operation.UploadData(u.String(), string(n.Name), false, n.Data, n.IsCompressed(), string(n.Mime), pairMap, jwt) return err }); err != nil { err = fmt.Errorf("failed to write to replicas for volume %d: %v", volumeId, err) glog.V(0).Infoln(err) } } return }
func ReplicatedDelete(masterNode string, store *storage.Store, volumeId needle.VolumeId, n *needle.Needle, r *http.Request) (size uint32, err error) {
//check JWT
jwt := security.GetJwt(r)
var remoteLocations []operation.Location if r.FormValue("type") != "replicate" { remoteLocations, err = getWritableRemoteReplications(store, volumeId, masterNode) if err != nil { glog.V(0).Infoln(err) return } }
size, err = store.DeleteVolumeNeedle(volumeId, n) if err != nil { glog.V(0).Infoln("delete error:", err) return }
if len(remoteLocations) > 0 { //send to other replica locations
if err = distributedOperation(remoteLocations, store, func(location operation.Location) error { return util.Delete("http://"+location.Url+r.URL.Path+"?type=replicate", string(jwt)) }); err != nil { size = 0 } } return }
type DistributedOperationResult map[string]error
func (dr DistributedOperationResult) Error() error { var errs []string for k, v := range dr { if v != nil { errs = append(errs, fmt.Sprintf("[%s]: %v", k, v)) } } if len(errs) == 0 { return nil } return errors.New(strings.Join(errs, "\n")) }
type RemoteResult struct { Host string Error error }
func distributedOperation(locations []operation.Location, store *storage.Store, op func(location operation.Location) error) error { length := len(locations) results := make(chan RemoteResult) for _, location := range locations { go func(location operation.Location, results chan RemoteResult) { results <- RemoteResult{location.Url, op(location)} }(location, results) } ret := DistributedOperationResult(make(map[string]error)) for i := 0; i < length; i++ { result := <-results ret[result.Host] = result.Error }
return ret.Error() }
func getWritableRemoteReplications(s *storage.Store, volumeId needle.VolumeId, masterNode string) ( remoteLocations []operation.Location, err error) {
v := s.GetVolume(volumeId) if v != nil && v.ReplicaPlacement.GetCopyCount() == 1 { return }
// not on local store, or has replications
lookupResult, lookupErr := operation.Lookup(masterNode, volumeId.String()) if lookupErr == nil { selfUrl := s.Ip + ":" + strconv.Itoa(s.Port) for _, location := range lookupResult.Locations { if location.Url != selfUrl { remoteLocations = append(remoteLocations, location) } } } else { err = fmt.Errorf("failed to lookup for %d: %v", volumeId, lookupErr) return }
if v != nil { // has one local and has remote replications
copyCount := v.ReplicaPlacement.GetCopyCount() if len(lookupResult.Locations) < copyCount { err = fmt.Errorf("replicating opetations [%d] is less than volume %d replication copy count [%d]", len(lookupResult.Locations), volumeId, copyCount) } }
return }
|