224 lines
5.4 KiB
Go
224 lines
5.4 KiB
Go
/*
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Copyright 2014 CoreOS, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package integration
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import (
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"fmt"
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"io/ioutil"
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"log"
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"net"
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"net/http"
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"net/http/httptest"
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"os"
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"strings"
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"testing"
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"time"
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"github.com/coreos/etcd/client"
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"github.com/coreos/etcd/etcdserver"
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"github.com/coreos/etcd/etcdserver/etcdhttp"
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"github.com/coreos/etcd/pkg/types"
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"github.com/coreos/etcd/Godeps/_workspace/src/code.google.com/p/go.net/context"
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)
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const (
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tickDuration = 10 * time.Millisecond
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clusterName = "etcd"
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requestTimeout = 2 * time.Second
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)
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func init() {
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// open microsecond-level time log for integration test debugging
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log.SetFlags(log.Ltime | log.Lmicroseconds | log.Lshortfile)
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}
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func TestClusterOf1(t *testing.T) { testCluster(t, 1) }
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func TestClusterOf3(t *testing.T) { testCluster(t, 3) }
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func testCluster(t *testing.T, size int) {
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defer afterTest(t)
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c := &cluster{Size: size}
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c.Launch(t)
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defer c.Terminate(t)
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for i := 0; i < size; i++ {
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for j, u := range c.Members[i].ClientURLs {
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cc := mustNewHTTPClient(t, []string{u.String()})
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kapi := client.NewKeysAPI(cc)
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// TODO: we retry it here because MsgProp may be dropped due to
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// sender reaches its max serving. make it reliable that we don't
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// need to worry about it.
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var err error
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for k := 0; k < 3; k++ {
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ctx, cancel := context.WithTimeout(context.Background(), requestTimeout)
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if _, err = kapi.Create(ctx, fmt.Sprintf("/%d%d%d", i, j, k), "bar", -1); err == nil {
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break
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}
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cancel()
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}
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if err != nil {
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t.Errorf("create on %s error: %v", u.String(), err)
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}
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}
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}
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}
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type cluster struct {
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Size int
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Members []member
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}
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// TODO: support TLS
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func (c *cluster) Launch(t *testing.T) {
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if c.Size <= 0 {
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t.Fatalf("cluster size <= 0")
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}
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lns := make([]net.Listener, c.Size)
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addrs := make([]string, c.Size)
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for i := 0; i < c.Size; i++ {
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l := newLocalListener(t)
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// each member claims only one peer listener
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lns[i] = l
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addrs[i] = fmt.Sprintf("%v=%v", c.name(i), "http://"+l.Addr().String())
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}
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clusterStr := strings.Join(addrs, ",")
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var err error
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for i := 0; i < c.Size; i++ {
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m := member{}
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m.PeerListeners = []net.Listener{lns[i]}
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cln := newLocalListener(t)
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m.ClientListeners = []net.Listener{cln}
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m.Name = c.name(i)
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m.ClientURLs, err = types.NewURLs([]string{"http://" + cln.Addr().String()})
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if err != nil {
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t.Fatal(err)
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}
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m.DataDir, err = ioutil.TempDir(os.TempDir(), "etcd")
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if err != nil {
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t.Fatal(err)
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}
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m.Cluster, err = etcdserver.NewClusterFromString(clusterName, clusterStr)
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if err != nil {
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t.Fatal(err)
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}
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m.NewCluster = true
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m.Transport = newTransport()
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m.Launch(t)
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c.Members = append(c.Members, m)
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}
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}
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func (c *cluster) URL(i int) string {
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return c.Members[i].ClientURLs[0].String()
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}
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func (c *cluster) Terminate(t *testing.T) {
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for _, m := range c.Members {
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m.Terminate(t)
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}
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}
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func (c *cluster) name(i int) string {
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return fmt.Sprint("node", i)
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}
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func newLocalListener(t *testing.T) net.Listener {
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l, err := net.Listen("tcp", "127.0.0.1:0")
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if err != nil {
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t.Fatal(err)
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}
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return l
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}
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type member struct {
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etcdserver.ServerConfig
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PeerListeners, ClientListeners []net.Listener
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s *etcdserver.EtcdServer
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hss []*httptest.Server
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}
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// Launch starts a member based on ServerConfig, PeerListeners
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// and ClientListeners.
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func (m *member) Launch(t *testing.T) {
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var err error
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if m.s, err = etcdserver.NewServer(&m.ServerConfig); err != nil {
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t.Fatalf("failed to initialize the etcd server: %v", err)
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}
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m.s.Ticker = time.Tick(tickDuration)
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m.s.SyncTicker = time.Tick(10 * tickDuration)
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m.s.Start()
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for _, ln := range m.PeerListeners {
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hs := &httptest.Server{
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Listener: ln,
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Config: &http.Server{Handler: etcdhttp.NewPeerHandler(m.s)},
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}
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hs.Start()
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m.hss = append(m.hss, hs)
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}
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for _, ln := range m.ClientListeners {
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hs := &httptest.Server{
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Listener: ln,
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Config: &http.Server{Handler: etcdhttp.NewClientHandler(m.s)},
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}
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hs.Start()
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m.hss = append(m.hss, hs)
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}
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}
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// Stop stops the member, but the data dir of the member is preserved.
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func (m *member) Stop(t *testing.T) {
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panic("unimplemented")
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}
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// Start starts the member using the preserved data dir.
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func (m *member) Start(t *testing.T) {
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panic("unimplemented")
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}
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// Terminate stops the member and removes the data dir.
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func (m *member) Terminate(t *testing.T) {
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m.s.Stop()
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for _, hs := range m.hss {
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hs.CloseClientConnections()
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hs.Close()
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}
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if err := os.RemoveAll(m.ServerConfig.DataDir); err != nil {
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t.Fatal(err)
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}
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}
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func mustNewHTTPClient(t *testing.T, eps []string) client.HTTPClient {
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cc, err := client.NewHTTPClient(newTransport(), eps)
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if err != nil {
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t.Fatal(err)
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}
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return cc
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}
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func newTransport() *http.Transport {
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tr := &http.Transport{}
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// TODO: need the support of graceful stop in Sender to remove this
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tr.DisableKeepAlives = true
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tr.Dial = (&net.Dialer{Timeout: 100 * time.Millisecond}).Dial
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return tr
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}
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