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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#ifndef ROCKSDB_LITE
#ifndef GFLAGS
#include <cstdio>
int main() {
fprintf(stderr, "Please install gflags to run rocksdb tools\n");
return 1;
}
#else
#include <atomic>
#include <cstdio>
#include "db/write_batch_internal.h"
#include "rocksdb/db.h"
#include "rocksdb/types.h"
#include "test_util/testutil.h"
#include "util/gflags_compat.h"
// Run a thread to perform Put's.
// Another thread uses GetUpdatesSince API to keep getting the updates.
// options :
// --num_inserts = the num of inserts the first thread should perform.
// --wal_ttl = the wal ttl for the run.
using namespace ROCKSDB_NAMESPACE;
using GFLAGS_NAMESPACE::ParseCommandLineFlags;
using GFLAGS_NAMESPACE::SetUsageMessage;
struct DataPumpThread {
size_t no_records;
DB* db; // Assumption DB is Open'ed already.
};
static std::string RandomString(Random* rnd, int len) {
std::string r;
test::RandomString(rnd, len, &r);
return r;
}
static void DataPumpThreadBody(void* arg) {
DataPumpThread* t = reinterpret_cast<DataPumpThread*>(arg);
DB* db = t->db;
Random rnd(301);
size_t i = 0;
while (i++ < t->no_records) {
if (!db->Put(WriteOptions(), Slice(RandomString(&rnd, 500)),
Slice(RandomString(&rnd, 500)))
.ok()) {
fprintf(stderr, "Error in put\n");
exit(1);
}
}
}
struct ReplicationThread {
std::atomic<bool> stop;
DB* db;
volatile size_t no_read;
};
static void ReplicationThreadBody(void* arg) {
ReplicationThread* t = reinterpret_cast<ReplicationThread*>(arg);
DB* db = t->db;
std::unique_ptr<TransactionLogIterator> iter;
SequenceNumber currentSeqNum = 1;
while (!t->stop.load(std::memory_order_acquire)) {
iter.reset();
Status s;
while (!db->GetUpdatesSince(currentSeqNum, &iter).ok()) {
if (t->stop.load(std::memory_order_acquire)) {
return;
}
}
fprintf(stderr, "Refreshing iterator\n");
for (; iter->Valid(); iter->Next(), t->no_read++, currentSeqNum++) {
BatchResult res = iter->GetBatch();
if (res.sequence != currentSeqNum) {
fprintf(stderr, "Missed a seq no. b/w %ld and %ld\n",
(long)currentSeqNum, (long)res.sequence);
exit(1);
}
}
}
}
DEFINE_uint64(num_inserts, 1000,
"the num of inserts the first thread should"
" perform.");
DEFINE_uint64(wal_ttl_seconds, 1000, "the wal ttl for the run(in seconds)");
DEFINE_uint64(wal_size_limit_MB, 10,
"the wal size limit for the run"
"(in MB)");
int main(int argc, const char** argv) {
SetUsageMessage(
std::string("\nUSAGE:\n") + std::string(argv[0]) +
" --num_inserts=<num_inserts> --wal_ttl_seconds=<WAL_ttl_seconds>" +
" --wal_size_limit_MB=<WAL_size_limit_MB>");
ParseCommandLineFlags(&argc, const_cast<char***>(&argv), true);
Env* env = Env::Default();
std::string default_db_path;
env->GetTestDirectory(&default_db_path);
default_db_path += "db_repl_stress";
Options options;
options.create_if_missing = true;
options.WAL_ttl_seconds = FLAGS_wal_ttl_seconds;
options.WAL_size_limit_MB = FLAGS_wal_size_limit_MB;
DB* db;
DestroyDB(default_db_path, options);
Status s = DB::Open(options, default_db_path, &db);
if (!s.ok()) {
fprintf(stderr, "Could not open DB due to %s\n", s.ToString().c_str());
exit(1);
}
DataPumpThread dataPump;
dataPump.no_records = FLAGS_num_inserts;
dataPump.db = db;
env->StartThread(DataPumpThreadBody, &dataPump);
ReplicationThread replThread;
replThread.db = db;
replThread.no_read = 0;
replThread.stop.store(false, std::memory_order_release);
env->StartThread(ReplicationThreadBody, &replThread);
while (replThread.no_read < FLAGS_num_inserts)
;
replThread.stop.store(true, std::memory_order_release);
if (replThread.no_read < dataPump.no_records) {
// no. read should be => than inserted.
fprintf(stderr,
"No. of Record's written and read not same\nRead : %" ROCKSDB_PRIszt
" Written : %" ROCKSDB_PRIszt "\n",
replThread.no_read, dataPump.no_records);
exit(1);
}
fprintf(stderr, "Successful!\n");
exit(0);
}
#endif // GFLAGS
#else // ROCKSDB_LITE
#include <stdio.h>
int main(int /*argc*/, char** /*argv*/) {
fprintf(stderr, "Not supported in lite mode.\n");
return 1;
}
#endif // ROCKSDB_LITE
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