mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-26 16:30:56 +00:00
135 lines
4 KiB
C++
135 lines
4 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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#include <cstdio>
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#include <gflags/gflags.h>
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#include "db/write_batch_internal.h"
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#include "rocksdb/db.h"
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#include "rocksdb/types.h"
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#include "port/atomic_pointer.h"
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#include "util/testutil.h"
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// Run a thread to perform Put's.
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// Another thread uses GetUpdatesSince API to keep getting the updates.
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// options :
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// --num_inserts = the num of inserts the first thread should perform.
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// --wal_ttl = the wal ttl for the run.
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using namespace rocksdb;
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struct DataPumpThread {
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size_t no_records;
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DB* db; // Assumption DB is Open'ed already.
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};
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static std::string RandomString(Random* rnd, int len) {
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std::string r;
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test::RandomString(rnd, len, &r);
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return r;
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}
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static void DataPumpThreadBody(void* arg) {
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DataPumpThread* t = reinterpret_cast<DataPumpThread*>(arg);
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DB* db = t->db;
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Random rnd(301);
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size_t i = 0;
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while(i++ < t->no_records) {
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if(!db->Put(WriteOptions(), Slice(RandomString(&rnd, 500)),
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Slice(RandomString(&rnd, 500))).ok()) {
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fprintf(stderr, "Error in put\n");
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exit(1);
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}
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}
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}
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struct ReplicationThread {
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port::AtomicPointer stop;
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DB* db;
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volatile size_t no_read;
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};
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static void ReplicationThreadBody(void* arg) {
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ReplicationThread* t = reinterpret_cast<ReplicationThread*>(arg);
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DB* db = t->db;
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unique_ptr<TransactionLogIterator> iter;
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SequenceNumber currentSeqNum = 1;
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while (t->stop.Acquire_Load() != nullptr) {
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iter.reset();
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Status s;
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while(!db->GetUpdatesSince(currentSeqNum, &iter).ok()) {
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if (t->stop.Acquire_Load() == nullptr) {
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return;
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}
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}
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fprintf(stderr, "Refreshing iterator\n");
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for(;iter->Valid(); iter->Next(), t->no_read++, currentSeqNum++) {
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BatchResult res = iter->GetBatch();
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if (res.sequence != currentSeqNum) {
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fprintf(stderr,
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"Missed a seq no. b/w %ld and %ld\n",
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(long)currentSeqNum,
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(long)res.sequence);
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exit(1);
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}
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}
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}
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}
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DEFINE_uint64(num_inserts, 1000, "the num of inserts the first thread should"
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" perform.");
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DEFINE_uint64(wal_ttl_seconds, 1000, "the wal ttl for the run(in seconds)");
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DEFINE_uint64(wal_size_limit_MB, 10, "the wal size limit for the run"
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"(in MB)");
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int main(int argc, const char** argv) {
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google::SetUsageMessage(std::string("\nUSAGE:\n") + std::string(argv[0]) +
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" --num_inserts=<num_inserts> --wal_ttl_seconds=<WAL_ttl_seconds>" +
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" --wal_size_limit_MB=<WAL_size_limit_MB>");
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google::ParseCommandLineFlags(&argc, const_cast<char***>(&argv), true);
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Env* env = Env::Default();
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std::string default_db_path;
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env->GetTestDirectory(&default_db_path);
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default_db_path += "db_repl_stress";
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Options options;
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options.create_if_missing = true;
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options.WAL_ttl_seconds = FLAGS_wal_ttl_seconds;
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options.WAL_size_limit_MB = FLAGS_wal_size_limit_MB;
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DB* db;
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DestroyDB(default_db_path, options);
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Status s = DB::Open(options, default_db_path, &db);
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if (!s.ok()) {
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fprintf(stderr, "Could not open DB due to %s\n", s.ToString().c_str());
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exit(1);
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}
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DataPumpThread dataPump;
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dataPump.no_records = FLAGS_num_inserts;
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dataPump.db = db;
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env->StartThread(DataPumpThreadBody, &dataPump);
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ReplicationThread replThread;
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replThread.db = db;
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replThread.no_read = 0;
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replThread.stop.Release_Store(env); // store something to make it non-null.
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env->StartThread(ReplicationThreadBody, &replThread);
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while(replThread.no_read < FLAGS_num_inserts);
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replThread.stop.Release_Store(nullptr);
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if (replThread.no_read < dataPump.no_records) {
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// no. read should be => than inserted.
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fprintf(stderr, "No. of Record's written and read not same\nRead : %zu"
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" Written : %zu\n", replThread.no_read, dataPump.no_records);
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exit(1);
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}
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fprintf(stderr, "Successful!\n");
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exit(0);
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}
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