本文整理汇总了Golang中github.com/youtube/vitess/go/vt/topo.Impl.UpdateTablet方法的典型用法代码示例。如果您正苦于以下问题：Golang Impl.UpdateTablet方法的具体用法？Golang Impl.UpdateTablet怎么用？Golang Impl.UpdateTablet使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/youtube/vitess/go/vt/topo.Impl的用法示例。
在下文中一共展示了Impl.UpdateTablet方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: CheckTablet
// CheckTablet verifies the topo server API is correct for managing tablets.
func CheckTablet(ctx context.Context, t *testing.T, ts topo.Impl) {
tts := topo.Server{Impl: ts}
cell := getLocalCell(ctx, t, ts)
tablet := &topodatapb.Tablet{
Alias: &topodatapb.TabletAlias{Cell: cell, Uid: 1},
Hostname: "localhost",
Ip: "10.11.12.13",
PortMap: map[string]int32{
"vt": 3333,
"mysql": 3334,
},
Tags: map[string]string{"tag": "value"},
Keyspace: "test_keyspace",
Type: topodatapb.TabletType_MASTER,
KeyRange: newKeyRange("-10"),
}
if err := ts.CreateTablet(ctx, tablet); err != nil {
t.Errorf("CreateTablet: %v", err)
}
if err := ts.CreateTablet(ctx, tablet); err != topo.ErrNodeExists {
t.Errorf("CreateTablet(again): %v", err)
}
if _, _, err := ts.GetTablet(ctx, &topodatapb.TabletAlias{Cell: cell, Uid: 666}); err != topo.ErrNoNode {
t.Errorf("GetTablet(666): %v", err)
}
nt, nv, err := ts.GetTablet(ctx, tablet.Alias)
if err != nil {
t.Errorf("GetTablet %v: %v", tablet.Alias, err)
}
if eq, err := tabletEqual(nt, tablet); err != nil {
t.Errorf("cannot compare tablets: %v", err)
} else if !eq {
t.Errorf("put and got tablets are not identical:\n%#v\n%#v", tablet, t)
}
if _, err := ts.GetTabletsByCell(ctx, "666"); err != topo.ErrNoNode {
t.Errorf("GetTabletsByCell(666): %v", err)
}
inCell, err := ts.GetTabletsByCell(ctx, cell)
if err != nil {
t.Errorf("GetTabletsByCell: %v", err)
}
if len(inCell) != 1 || *inCell[0] != *tablet.Alias {
t.Errorf("GetTabletsByCell: want [%v], got %v", tablet.Alias, inCell)
}
nt.Hostname = "remotehost"
if _, err := ts.UpdateTablet(ctx, nt, nv); err != nil {
t.Errorf("UpdateTablet: %v", err)
}
nt, nv, err = ts.GetTablet(ctx, tablet.Alias)
if err != nil {
t.Errorf("GetTablet %v: %v", tablet.Alias, err)
}
if want := "remotehost"; nt.Hostname != want {
t.Errorf("nt.Hostname: want %v, got %v", want, nt.Hostname)
}
// unconditional tablet update
nt.Hostname = "remotehost2"
if _, err := ts.UpdateTablet(ctx, nt, -1); err != nil {
t.Errorf("UpdateTablet(-1): %v", err)
}
nt, nv, err = ts.GetTablet(ctx, tablet.Alias)
if err != nil {
t.Errorf("GetTablet %v: %v", tablet.Alias, err)
}
if want := "remotehost2"; nt.Hostname != want {
t.Errorf("nt.Hostname: want %v, got %v", want, nt.Hostname)
}
// test UpdateTabletFields works
updatedTablet, err := tts.UpdateTabletFields(ctx, tablet.Alias, func(t *topodatapb.Tablet) error {
t.Hostname = "anotherhost"
return nil
})
if err != nil {
t.Errorf("UpdateTabletFields: %v", err)
}
if got, want := updatedTablet.Hostname, "anotherhost"; got != want {
t.Errorf("updatedTablet.Hostname = %q, want %q", got, want)
}
nt, nv, err = ts.GetTablet(ctx, tablet.Alias)
if err != nil {
t.Errorf("GetTablet %v: %v", tablet.Alias, err)
}
if got, want := nt.Hostname, "anotherhost"; got != want {
t.Errorf("nt.Hostname = %q, want %q", got, want)
}
// test UpdateTabletFields that returns ErrNoUpdateNeeded works
if _, err := tts.UpdateTabletFields(ctx, tablet.Alias, func(t *topodatapb.Tablet) error {
//.........这里部分代码省略.........
示例2: CheckTablet
// CheckTablet verifies the topo server API is correct for managing tablets.
func CheckTablet(ctx context.Context, t *testing.T, ts topo.Impl) {
cell := getLocalCell(ctx, t, ts)
tablet := &pb.Tablet{
Alias: &pb.TabletAlias{Cell: cell, Uid: 1},
Hostname: "localhost",
Ip: "10.11.12.13",
PortMap: map[string]int32{
"vt": 3333,
"mysql": 3334,
},
Tags: map[string]string{"tag": "value"},
Keyspace: "test_keyspace",
Type: pb.TabletType_MASTER,
KeyRange: newKeyRange3("-10"),
}
if err := ts.CreateTablet(ctx, tablet); err != nil {
t.Errorf("CreateTablet: %v", err)
}
if err := ts.CreateTablet(ctx, tablet); err != topo.ErrNodeExists {
t.Errorf("CreateTablet(again): %v", err)
}
if _, _, err := ts.GetTablet(ctx, &pb.TabletAlias{Cell: cell, Uid: 666}); err != topo.ErrNoNode {
t.Errorf("GetTablet(666): %v", err)
}
nt, nv, err := ts.GetTablet(ctx, tablet.Alias)
if err != nil {
t.Errorf("GetTablet %v: %v", tablet.Alias, err)
}
if eq, err := tabletEqual(nt, tablet); err != nil {
t.Errorf("cannot compare tablets: %v", err)
} else if !eq {
t.Errorf("put and got tablets are not identical:\n%#v\n%#v", tablet, t)
}
if _, err := ts.GetTabletsByCell(ctx, "666"); err != topo.ErrNoNode {
t.Errorf("GetTabletsByCell(666): %v", err)
}
inCell, err := ts.GetTabletsByCell(ctx, cell)
if err != nil {
t.Errorf("GetTabletsByCell: %v", err)
}
if len(inCell) != 1 || *inCell[0] != *tablet.Alias {
t.Errorf("GetTabletsByCell: want [%v], got %v", tablet.Alias, inCell)
}
nt.Hostname = "remotehost"
if _, err := ts.UpdateTablet(ctx, nt, nv); err != nil {
t.Errorf("UpdateTablet: %v", err)
}
nt, nv, err = ts.GetTablet(ctx, tablet.Alias)
if err != nil {
t.Errorf("GetTablet %v: %v", tablet.Alias, err)
}
if want := "remotehost"; nt.Hostname != want {
t.Errorf("nt.Hostname: want %v, got %v", want, nt.Hostname)
}
if _, err := ts.UpdateTabletFields(ctx, tablet.Alias, func(t *pb.Tablet) error {
t.Hostname = "anotherhost"
return nil
}); err != nil {
t.Errorf("UpdateTabletFields: %v", err)
}
nt, nv, err = ts.GetTablet(ctx, tablet.Alias)
if err != nil {
t.Errorf("GetTablet %v: %v", tablet.Alias, err)
}
if want := "anotherhost"; nt.Hostname != want {
t.Errorf("nt.Hostname: want %v, got %v", want, nt.Hostname)
}
if err := ts.DeleteTablet(ctx, tablet.Alias); err != nil {
t.Errorf("DeleteTablet: %v", err)
}
if err := ts.DeleteTablet(ctx, tablet.Alias); err != topo.ErrNoNode {
t.Errorf("DeleteTablet(again): %v", err)
}
if _, _, err := ts.GetTablet(ctx, tablet.Alias); err != topo.ErrNoNode {
t.Errorf("GetTablet: expected error, tablet was deleted: %v", err)
}
}