本文整理汇总了Golang中github.com/youtube/vitess/go/vt/topo.Server.DeleteShard方法的典型用法代码示例。如果您正苦于以下问题：Golang Server.DeleteShard方法的具体用法？Golang Server.DeleteShard怎么用？Golang Server.DeleteShard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.Server的用法示例。
在下文中一共展示了Server.DeleteShard方法的1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: CheckShard
// CheckShard verifies the Shard operations work correctly
func CheckShard(ctx context.Context, t *testing.T, ts topo.Server) {
if err := ts.CreateKeyspace(ctx, "test_keyspace", &topo.Keyspace{}); err != nil {
t.Fatalf("CreateKeyspace: %v", err)
}
if err := topo.CreateShard(ctx, ts, "test_keyspace", "b0-c0"); err != nil {
t.Fatalf("CreateShard: %v", err)
}
if err := topo.CreateShard(ctx, ts, "test_keyspace", "b0-c0"); err != topo.ErrNodeExists {
t.Errorf("CreateShard called second time, got: %v", err)
}
// Delete shard and see if we can re-create it.
if err := ts.DeleteShard(ctx, "test_keyspace", "b0-c0"); err != nil {
t.Fatalf("DeleteShard: %v", err)
}
if err := topo.CreateShard(ctx, ts, "test_keyspace", "b0-c0"); err != nil {
t.Fatalf("CreateShard: %v", err)
}
// Delete ALL shards.
if err := ts.DeleteKeyspaceShards(ctx, "test_keyspace"); err != nil {
t.Fatalf("DeleteKeyspaceShards: %v", err)
}
if err := topo.CreateShard(ctx, ts, "test_keyspace", "b0-c0"); err != nil {
t.Fatalf("CreateShard: %v", err)
}
if _, err := topo.GetShard(ctx, ts, "test_keyspace", "666"); err != topo.ErrNoNode {
t.Errorf("GetShard(666): %v", err)
}
shardInfo, err := topo.GetShard(ctx, ts, "test_keyspace", "b0-c0")
if err != nil {
t.Errorf("GetShard: %v", err)
}
if want := newKeyRange("b0-c0"); shardInfo.KeyRange != want {
t.Errorf("shardInfo.KeyRange: want %v, got %v", want, shardInfo.KeyRange)
}
master := topo.TabletAlias{Cell: "ny", Uid: 1}
shardInfo.MasterAlias = master
shardInfo.KeyRange = newKeyRange("b0-c0")
shardInfo.ServedTypesMap = map[topo.TabletType]*topo.ShardServedType{
topo.TYPE_MASTER: &topo.ShardServedType{},
topo.TYPE_REPLICA: &topo.ShardServedType{Cells: []string{"c1"}},
topo.TYPE_RDONLY: &topo.ShardServedType{},
}
shardInfo.SourceShards = []topo.SourceShard{
topo.SourceShard{
Uid: 1,
Keyspace: "source_ks",
Shard: "b8-c0",
KeyRange: newKeyRange("b8-c0"),
Tables: []string{"table1", "table2"},
},
}
shardInfo.TabletControlMap = map[topo.TabletType]*topo.TabletControl{
topo.TYPE_MASTER: &topo.TabletControl{
Cells: []string{"c1", "c2"},
BlacklistedTables: []string{"black1", "black2"},
},
topo.TYPE_REPLICA: &topo.TabletControl{
DisableQueryService: true,
},
}
if err := topo.UpdateShard(ctx, ts, shardInfo); err != nil {
t.Errorf("UpdateShard: %v", err)
}
other := topo.TabletAlias{Cell: "ny", Uid: 82873}
_, err = topo.UpdateShardFields(ctx, ts, "test_keyspace", "b0-c0", func(shard *topo.Shard) error {
shard.MasterAlias = other
return nil
})
if err != nil {
t.Fatalf("UpdateShardFields error: %v", err)
}
si, err := topo.GetShard(ctx, ts, "test_keyspace", "b0-c0")
if err != nil {
t.Fatalf("GetShard: %v", err)
}
if si.MasterAlias != other {
t.Fatalf("shard.MasterAlias = %v, want %v", si.MasterAlias, other)
}
_, err = topo.UpdateShardFields(ctx, ts, "test_keyspace", "b0-c0", func(shard *topo.Shard) error {
shard.MasterAlias = master
return nil
})
if err != nil {
t.Fatalf("UpdateShardFields error: %v", err)
}
updatedShardInfo, err := topo.GetShard(ctx, ts, "test_keyspace", "b0-c0")
if err != nil {
t.Fatalf("GetShard: %v", err)
}
if eq, err := shardEqual(shardInfo.Shard, updatedShardInfo.Shard); err != nil {
t.Errorf("cannot compare shards: %v", err)
//.........这里部分代码省略.........