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grpc-proxy: invalidate cache entries when there is a put/delete

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This commit is contained in:
Xiang Li
2016-08-18 16:44:40 -07:00
parent 5e9fe0dc23
commit c8bbb8c53e
2 changed files with 64 additions and 5 deletions
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10
proxy/grpcproxy/kv.go
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@ -35,7 +35,6 @@ func NewKvProxy(c *clientv3.Client) pb.KVServer {
}
func (p *kvProxy) Range(ctx context.Context, r *pb.RangeRequest) (*pb.RangeResponse, error) {
// if request set Serializable, serve it from local cache first
if r.Serializable {
resp, err := p.cache.Get(r)
switch err {
@ -51,17 +50,22 @@ func (p *kvProxy) Range(ctx context.Context, r *pb.RangeRequest) (*pb.RangeRespo
return nil, err
}
p.cache.Add(r, (*pb.RangeResponse)(resp.Get()))
// cache linearizable as serializable
r.Serializable = true
gresp := (*pb.RangeResponse)(resp.Get())
p.cache.Add(r, gresp)
return (*pb.RangeResponse)(resp.Get()), nil
return gresp, nil
}
func (p *kvProxy) Put(ctx context.Context, r *pb.PutRequest) (*pb.PutResponse, error) {
p.cache.Invalidate(r.Key, nil)
resp, err := p.kv.Do(ctx, PutRequestToOp(r))
return (*pb.PutResponse)(resp.Put()), err
}
func (p *kvProxy) DeleteRange(ctx context.Context, r *pb.DeleteRangeRequest) (*pb.DeleteRangeResponse, error) {
p.cache.Invalidate(r.Key, r.RangeEnd)
resp, err := p.kv.Do(ctx, DelRequestToOp(r))
return (*pb.DeleteRangeResponse)(resp.Del()), err
}