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Golang Server.DeleteShardReplication方法代码示例

本文整理汇总了Golang中github.com/youtube/vitess/go/vt/topo.Server.DeleteShardReplication方法的典型用法代码示例。如果您正苦于以下问题:Golang Server.DeleteShardReplication方法的具体用法?Golang Server.DeleteShardReplication怎么用?Golang Server.DeleteShardReplication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github.com/youtube/vitess/go/vt/topo.Server的用法示例。


在下文中一共展示了Server.DeleteShardReplication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: CheckShardReplication

// CheckShardReplication tests ShardReplication objects
func CheckShardReplication(ctx context.Context, t *testing.T, ts topo.Server) {
	cell := getLocalCell(ctx, t, ts)
	if _, err := ts.GetShardReplication(ctx, cell, "test_keyspace", "-10"); err != topo.ErrNoNode {
		t.Errorf("GetShardReplication(not there): %v", err)
	}

	sr := &topo.ShardReplication{
		ReplicationLinks: []topo.ReplicationLink{
			topo.ReplicationLink{
				TabletAlias: topo.TabletAlias{
					Cell: "c1",
					Uid:  1,
				},
			},
		},
	}
	if err := ts.UpdateShardReplicationFields(ctx, cell, "test_keyspace", "-10", func(oldSr *topo.ShardReplication) error {
		*oldSr = *sr
		return nil
	}); err != nil {
		t.Fatalf("UpdateShardReplicationFields() failed: %v", err)
	}

	if sri, err := ts.GetShardReplication(ctx, cell, "test_keyspace", "-10"); err != nil {
		t.Errorf("GetShardReplication(new guy) failed: %v", err)
	} else {
		if len(sri.ReplicationLinks) != 1 ||
			sri.ReplicationLinks[0].TabletAlias.Cell != "c1" ||
			sri.ReplicationLinks[0].TabletAlias.Uid != 1 {
			t.Errorf("GetShardReplication(new guy) returned wrong value: %v", *sri)
		}
	}

	if err := ts.UpdateShardReplicationFields(ctx, cell, "test_keyspace", "-10", func(sr *topo.ShardReplication) error {
		sr.ReplicationLinks = append(sr.ReplicationLinks, topo.ReplicationLink{
			TabletAlias: topo.TabletAlias{
				Cell: "c3",
				Uid:  3,
			},
		})
		return nil
	}); err != nil {
		t.Errorf("UpdateShardReplicationFields() failed: %v", err)
	}

	if sri, err := ts.GetShardReplication(ctx, cell, "test_keyspace", "-10"); err != nil {
		t.Errorf("GetShardReplication(after append) failed: %v", err)
	} else {
		if len(sri.ReplicationLinks) != 2 ||
			sri.ReplicationLinks[0].TabletAlias.Cell != "c1" ||
			sri.ReplicationLinks[0].TabletAlias.Uid != 1 ||
			sri.ReplicationLinks[1].TabletAlias.Cell != "c3" ||
			sri.ReplicationLinks[1].TabletAlias.Uid != 3 {
			t.Errorf("GetShardReplication(new guy) returned wrong value: %v", *sri)
		}
	}

	if err := ts.DeleteShardReplication(ctx, cell, "test_keyspace", "-10"); err != nil {
		t.Errorf("DeleteShardReplication(existing) failed: %v", err)
	}
	if err := ts.DeleteShardReplication(ctx, cell, "test_keyspace", "-10"); err != topo.ErrNoNode {
		t.Errorf("DeleteShardReplication(again) returned: %v", err)
	}
}
开发者ID:pranjal5215,项目名称:vitess,代码行数:65,代码来源:replication.go


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