本文整理汇总了Golang中github.com/youtube/vitess/go/vt/topo.KeyspaceInfo.UpdateServedFromMap方法的典型用法代码示例。如果您正苦于以下问题：Golang KeyspaceInfo.UpdateServedFromMap方法的具体用法？Golang KeyspaceInfo.UpdateServedFromMap怎么用？Golang KeyspaceInfo.UpdateServedFromMap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.KeyspaceInfo的用法示例。
在下文中一共展示了KeyspaceInfo.UpdateServedFromMap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: migrateServedFrom
func (wr *Wrangler) migrateServedFrom(ctx context.Context, ki *topo.KeyspaceInfo, destinationShard *topo.ShardInfo, servedType topodatapb.TabletType, cells []string, reverse bool, filteredReplicationWaitTime time.Duration) (err error) {
// re-read and update keyspace info record
ki, err = wr.ts.GetKeyspace(ctx, ki.KeyspaceName())
if err != nil {
return err
}
if reverse {
ki.UpdateServedFromMap(servedType, cells, destinationShard.SourceShards[0].Keyspace, false, nil)
} else {
ki.UpdateServedFromMap(servedType, cells, destinationShard.SourceShards[0].Keyspace, true, destinationShard.Cells)
}
// re-read and check the destination shard
destinationShard, err = wr.ts.GetShard(ctx, destinationShard.Keyspace(), destinationShard.ShardName())
if err != nil {
return err
}
if len(destinationShard.SourceShards) != 1 {
return fmt.Errorf("Destination shard %v/%v is not a vertical split target", destinationShard.Keyspace(), destinationShard.ShardName())
}
tables := destinationShard.SourceShards[0].Tables
// read the source shard, we'll need its master, and we'll need to
// update the blacklisted tables.
var sourceShard *topo.ShardInfo
sourceShard, err = wr.ts.GetShard(ctx, destinationShard.SourceShards[0].Keyspace, destinationShard.SourceShards[0].Shard)
if err != nil {
return err
}
ev := &events.MigrateServedFrom{
KeyspaceName: ki.KeyspaceName(),
SourceShard: *sourceShard,
DestinationShard: *destinationShard,
ServedType: servedType,
Reverse: reverse,
}
event.DispatchUpdate(ev, "start")
defer func() {
if err != nil {
event.DispatchUpdate(ev, "failed: "+err.Error())
}
}()
if servedType == topodatapb.TabletType_MASTER {
err = wr.masterMigrateServedFrom(ctx, ki, sourceShard, destinationShard, tables, ev, filteredReplicationWaitTime)
} else {
err = wr.replicaMigrateServedFrom(ctx, ki, sourceShard, destinationShard, servedType, cells, reverse, tables, ev)
}
event.DispatchUpdate(ev, "finished")
return
}