redis_press.cpp 6.87 KB
Newer Older
gejun's avatar
gejun committed
1
// Copyright (c) 2014 Baidu, Inc.
gejun's avatar
gejun committed
2 3 4 5 6 7 8 9 10 11 12 13
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
gejun's avatar
gejun committed
14 15 16 17 18

// A multi-threaded client getting keys from a redis-server constantly.

#include <gflags/gflags.h>
#include <bthread/bthread.h>
19 20
#include <butil/logging.h>
#include <butil/string_printf.h>
gejun's avatar
gejun committed
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
#include <bvar/bvar.h>
#include <brpc/channel.h>
#include <brpc/server.h>
#include <brpc/redis.h>

DEFINE_int32(thread_num, 50, "Number of threads to send requests");
DEFINE_bool(use_bthread, false, "Use bthread to send requests");
DEFINE_string(connection_type, "", "Connection type. Available values: single, pooled, short");
DEFINE_string(server, "0.0.0.0:6379", "IP Address of server");
DEFINE_int32(timeout_ms, 100, "RPC timeout in milliseconds");
DEFINE_int32(max_retry, 3, "Max retries(not including the first RPC)"); 
DEFINE_bool(dont_fail, false, "Print fatal when some call failed");
DEFINE_string(key, "hello", "The key to be get");
DEFINE_string(value, "world", "The value associated with the key");
DEFINE_int32(batch, 1, "Pipelined Operations");
DEFINE_int32(dummy_port, -1, "port of dummy server(for monitoring)");
DEFINE_int32(backup_request_ms, -1, "Timeout for sending a backup request");

bvar::LatencyRecorder g_latency_recorder("client");
bvar::Adder<int> g_error_count("client_error_count");

struct SenderArgs {
    int base_index;
    brpc::Channel* redis_channel;
};

static void* sender(void* void_args) {
    SenderArgs* args = (SenderArgs*)void_args;

    std::string value;
    std::vector<std::pair<std::string, std::string> > kvs;
    kvs.resize(FLAGS_batch);
    for (int i = 0; i < FLAGS_batch; ++i) {
54
        kvs[i].first = butil::string_printf(
gejun's avatar
gejun committed
55
            "%s_%04d", FLAGS_key.c_str(), args->base_index + i);
56
        kvs[i].second = butil::string_printf(
gejun's avatar
gejun committed
57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
            "%s_%04d", FLAGS_value.c_str(), args->base_index + i);
    }

    brpc::RedisRequest request;
    for (int i = 0; i < FLAGS_batch; ++i) {
        CHECK(request.AddCommand("GET %s", kvs[i].first.c_str()));
    }
    while (!brpc::IsAskedToQuit()) {
        // We will receive response synchronously, safe to put variables
        // on stack.
        brpc::RedisResponse response;
        brpc::Controller cntl;

        // Because `done'(last parameter) is NULL, this function waits until
        // the response comes back or error occurs(including timedout).
        args->redis_channel->CallMethod(NULL, &cntl, &request, &response, NULL);
        const int64_t elp = cntl.latency_us();
        if (!cntl.Failed()) {
            g_latency_recorder << elp;
            CHECK_EQ(response.reply_size(), FLAGS_batch);
            for (int i = 0; i < FLAGS_batch; ++i) {
                CHECK_EQ(kvs[i].second.c_str(), response.reply(i).data())
                    << "base=" << args->base_index << " i=" << i;
            }
        } else {
            g_error_count << 1;
            CHECK(brpc::IsAskedToQuit() || !FLAGS_dont_fail)
                << "error=" << cntl.ErrorText() << " latency=" << elp;
            // We can't connect to the server, sleep a while. Notice that this
            // is a specific sleeping to prevent this thread from spinning too
            // fast. You should continue the business logic in a production 
            // server rather than sleeping.
            bthread_usleep(50000);
        }
    }
    return NULL;
}

int main(int argc, char* argv[]) {
    // Parse gflags. We recommend you to use gflags as well.
97
    GFLAGS_NS::ParseCommandLineFlags(&argc, &argv, true);
gejun's avatar
gejun committed
98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141

    // A Channel represents a communication line to a Server. Notice that 
    // Channel is thread-safe and can be shared by all threads in your program.
    brpc::Channel channel;
    
    // Initialize the channel, NULL means using default options. 
    brpc::ChannelOptions options;
    options.protocol = brpc::PROTOCOL_REDIS;
    options.connection_type = FLAGS_connection_type;
    options.timeout_ms = FLAGS_timeout_ms/*milliseconds*/;
    options.max_retry = FLAGS_max_retry;
    options.backup_request_ms = FLAGS_backup_request_ms;
    if (channel.Init(FLAGS_server.c_str(), &options) != 0) {
        LOG(ERROR) << "Fail to initialize channel";
        return -1;
    }

    // Pipeline #batch * #thread_num SET requests into redis so that we
    // have keys to get.
    brpc::RedisRequest request;
    brpc::RedisResponse response;
    brpc::Controller cntl;
    for (int i = 0; i < FLAGS_batch * FLAGS_thread_num; ++i) {
        if (!request.AddCommand("SET %s_%04d %s_%04d", 
                    FLAGS_key.c_str(), i,
                    FLAGS_value.c_str(), i)) {
            LOG(ERROR) << "Fail to SET " << i << "th request";
            return -1;
        }
    }
    channel.CallMethod(NULL, &cntl, &request, &response, NULL);
    if (cntl.Failed()) {
        LOG(ERROR) << "Fail to access redis, " << cntl.ErrorText();
        return -1;
    }
    if (FLAGS_batch * FLAGS_thread_num != response.reply_size()) {
        LOG(ERROR) << "Fail to set";
        return -1;
    }
    for (int i = 0; i < FLAGS_batch * FLAGS_thread_num; ++i) {
        CHECK_EQ("OK", response.reply(i).data());
    }
    LOG(INFO) << "Set " << FLAGS_batch * FLAGS_thread_num << " values";

142
    if (FLAGS_dummy_port >= 0) {
gejun's avatar
gejun committed
143 144 145
        brpc::StartDummyServerAt(FLAGS_dummy_port);
    }

146 147 148 149
    std::vector<bthread_t> bids;
    std::vector<pthread_t> pids;
    bids.resize(FLAGS_thread_num);
    pids.resize(FLAGS_thread_num);
gejun's avatar
gejun committed
150 151 152 153 154 155
    std::vector<SenderArgs> args;
    args.resize(FLAGS_thread_num);
    for (int i = 0; i < FLAGS_thread_num; ++i) {
        args[i].base_index = i * FLAGS_batch;
        args[i].redis_channel = &channel;
        if (!FLAGS_use_bthread) {
156
            if (pthread_create(&pids[i], NULL, sender, &args[i]) != 0) {
gejun's avatar
gejun committed
157 158 159 160 161
                LOG(ERROR) << "Fail to create pthread";
                return -1;
            }
        } else {
            if (bthread_start_background(
162
                    &bids[i], NULL, sender, &args[i]) != 0) {
gejun's avatar
gejun committed
163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178
                LOG(ERROR) << "Fail to create bthread";
                return -1;
            }
        }
    }

    while (!brpc::IsAskedToQuit()) {
        sleep(1);
        
        LOG(INFO) << "Accessing redis-server at qps=" << g_latency_recorder.qps(1)
                  << " latency=" << g_latency_recorder.latency(1);
    }

    LOG(INFO) << "redis_client is going to quit";
    for (int i = 0; i < FLAGS_thread_num; ++i) {
        if (!FLAGS_use_bthread) {
179
            pthread_join(pids[i], NULL);
gejun's avatar
gejun committed
180
        } else {
181
            bthread_join(bids[i], NULL);
gejun's avatar
gejun committed
182 183 184 185
        }
    }
    return 0;
}