mirror of https://github.com/etcd-io/dbtester.git
97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
// Copyright 2017 CoreOS, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package control
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import (
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"context"
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"time"
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"github.com/coreos/dbtester/agent/agentpb"
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"google.golang.org/grpc"
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)
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func bcastReq(cfg Config, op agentpb.Request_Operation) (map[int]agentpb.Response, error) {
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req := cfg.ToRequest()
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req.Operation = op
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type result struct {
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idx int
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r agentpb.Response
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}
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donec, errc := make(chan result), make(chan error)
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for i := range cfg.PeerIPs {
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go func(i int) {
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if resp, err := sendReq(cfg.AgentEndpoints[i], req, i); err != nil {
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errc <- err
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} else {
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donec <- result{idx: i, r: *resp}
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}
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}(i)
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time.Sleep(time.Second)
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}
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im := make(map[int]agentpb.Response)
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var errs []error
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for cnt := 0; cnt != len(cfg.PeerIPs); cnt++ {
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select {
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case rs := <-donec:
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im[rs.idx] = rs.r
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case err := <-errc:
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errs = append(errs, err)
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}
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}
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if len(errs) > 0 {
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return nil, errs[0]
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}
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return im, nil
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}
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func sendReq(ep string, req agentpb.Request, i int) (*agentpb.Response, error) {
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req.ServerIndex = uint32(i)
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req.ZookeeperMyID = uint32(i + 1)
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plog.Infof("sending message [index: %d | operation: %q | database: %q | endpoint: %q]", i, req.Operation, req.Database, ep)
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conn, err := grpc.Dial(ep, grpc.WithInsecure())
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if err != nil {
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plog.Errorf("grpc.Dial connecting error (%v) [index: %d | endpoint: %q]", err, i, ep)
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return nil, err
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}
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defer conn.Close()
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cli := agentpb.NewTransporterClient(conn)
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// give enough timeout
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// e.g. uploading logs takes longer
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ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
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resp, err := cli.Transfer(ctx, &req)
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cancel()
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if err != nil {
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plog.Errorf("cli.Transfer error (%v) [index: %d | endpoint: %q]", err, i, ep)
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return nil, err
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}
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plog.Infof("got response [index: %d | endpoint: %q | response: %+v]", i, ep, resp)
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return resp, nil
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}
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func step1StartDatabase(cfg Config) error {
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_, err := bcastReq(cfg, agentpb.Request_Start)
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return err
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}
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