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cbc-pillowfight.cc
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cbc-pillowfight.cc
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/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright 2011-2012 Couchbase, Inc.
*
* 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.
*/
#define NOMINMAX // Because MS' CRT headers #define min and max :(
#include "config.h"
#include <sys/types.h>
#include <libcouchbase/couchbase.h>
#include <errno.h>
#include <iostream>
#include <map>
#include <sstream>
#include <queue>
#include <list>
#include <cstring>
#include <cassert>
#include <cstdio>
#include <cstdlib>
#include <fstream>
#include <signal.h>
#ifndef WIN32
#include <pthread.h>
#include <libcouchbase/metrics.h>
#else
#define usleep(n) Sleep(n/1000)
#endif
#include <cstdarg>
#include <exception>
#include <stdexcept>
#include "common/options.h"
#include "common/histogram.h"
#include "contrib/lcb-jsoncpp/lcb-jsoncpp.h"
#include "docgen/seqgen.h"
#include "docgen/docgen.h"
using namespace std;
using namespace cbc;
using namespace cliopts;
using namespace Pillowfight;
using std::vector;
using std::string;
// Deprecated options which still exist from previous versions.
struct DeprecatedOptions {
UIntOption iterations;
UIntOption instances;
BoolOption loop;
DeprecatedOptions() :
iterations("iterations"), instances("num-instances"), loop("loop")
{
iterations.abbrev('i').hide().setDefault(1000);
instances.abbrev('Q').hide().setDefault(1);
loop.abbrev('l').hide().setDefault(false);
}
void addOptions(Parser &p) {
p.addOption(instances);
p.addOption(loop);
p.addOption(iterations);
}
};
static TemplateSpec
parseTemplateSpec(const string& input)
{
TemplateSpec spec;
// Just need to find the path
size_t endpos = input.find(',');
if (endpos == string::npos) {
throw std::runtime_error("invalid template spec: need field,min,max");
}
spec.term = input.substr(0, endpos);
unsigned is_sequential = 0;
int rv = sscanf(input.c_str() + endpos + 1, "%u,%u,%u",
&spec.minval, &spec.maxval, &is_sequential);
if (rv < 2) {
throw std::runtime_error("invalid template spec: need field,min,max");
}
spec.sequential = is_sequential;
if (spec.minval > spec.maxval) {
throw std::runtime_error("min cannot be higher than max");
}
return spec;
}
class Configuration
{
public:
Configuration() :
o_multiSize("batch-size"),
o_numItems("num-items"),
o_keyPrefix("key-prefix"),
o_numThreads("num-threads"),
o_randSeed("random-seed"),
o_randomBody("random-body"),
o_setPercent("set-pct"),
o_minSize("min-size"),
o_maxSize("max-size"),
o_noPopulate("no-population"),
o_pauseAtEnd("pause-at-end"),
o_numCycles("num-cycles"),
o_sequential("sequential"),
o_startAt("start-at"),
o_rateLimit("rate-limit"),
o_userdocs("docs"),
o_writeJson("json"),
o_templatePairs("template"),
o_subdoc("subdoc"),
o_noop("noop"),
o_sdPathCount("pathcount"),
o_populateOnly("populate-only"),
o_exptime("expiry"),
o_collection("collection"),
o_separator("separator"),
o_persist("persist-to"),
o_replicate("replicate-to"),
o_lock("lock")
{
o_multiSize.setDefault(100).abbrev('B').description("Number of operations to batch");
o_numItems.setDefault(1000).abbrev('I').description("Number of items to operate on");
o_keyPrefix.abbrev('p').description("key prefix to use");
o_numThreads.setDefault(1).abbrev('t').description("The number of threads to use");
o_randSeed.setDefault(0).abbrev('s').description("Specify random seed").hide();
o_randomBody.setDefault(false).abbrev('R').description("Randomize document body (otherwise use 'x' and '*' to fill)");
o_setPercent.setDefault(33).abbrev('r').description("The percentage of operations which should be mutations");
o_minSize.setDefault(50).abbrev('m').description("Set minimum payload size");
o_maxSize.setDefault(5120).abbrev('M').description("Set maximum payload size");
o_noPopulate.setDefault(false).abbrev('n').description("Skip population");
o_pauseAtEnd.setDefault(false).abbrev('E').description("Pause at end of run (holding connections open) until user input");
o_numCycles.setDefault(-1).abbrev('c').description("Number of cycles to be run until exiting. Set to -1 to loop infinitely");
o_sequential.setDefault(false).description("Use sequential access (instead of random)");
o_startAt.setDefault(0).description("For sequential access, set the first item");
o_rateLimit.setDefault(0).description("Set operations per second limit (per thread)");
o_userdocs.description("User documents to load (overrides --min-size and --max-size");
o_writeJson.abbrev('J').description("Enable writing JSON values (rather than bytes)");
o_templatePairs.description("Values for templates to be inserted into user documents");
o_templatePairs.argdesc("FIELD,MIN,MAX[,SEQUENTIAL]").hide();
o_subdoc.description("Use subdoc instead of fulldoc operations");
o_noop.description("Use NOOP instead of document operations").setDefault(0);
o_sdPathCount.description("Number of subdoc paths per command").setDefault(1);
o_populateOnly.description("Exit after documents have been populated");
o_exptime.description("Set TTL for items").abbrev('e');
o_collection.description("Allowed collection name (could be specified multiple times)").hide();
o_separator.setDefault(":").description("Separator for collection prefix in keys").hide();
o_persist.description("Wait until item is persisted to this number of nodes (-1 for master+replicas)").setDefault(0);
o_replicate.description("Wait until item is replicated to this number of nodes (-1 for all replicas)").setDefault(0);
o_lock.description("Lock keys for updates for given time (will not lock when set to zero)").setDefault(0);
params.getTimings().description("Enable command timings (second time to dump timings automatically)");
}
void processOptions() {
opsPerCycle = o_multiSize.result();
prefix = o_keyPrefix.result();
setprc = o_setPercent.result();
shouldPopulate = !o_noPopulate.result();
persistTo = o_persist.result();
replicateTo = o_replicate.result();
lockTime = o_lock.result();
if (lockTime && o_numItems < opsPerCycle * o_numThreads) {
fprintf(stderr, "The --num-items=%d cannot be smaller than --batch-size=%d multiplied to --num-thread=%d when used with --lock=%d\n",
(int)o_numItems, (int)opsPerCycle, (int)o_numThreads, (int)lockTime);
exit(EXIT_FAILURE);
}
if (o_keyPrefix.passed() && o_collection.passed()) {
throw std::runtime_error("The --collection is not compatible with --key-prefix");
}
if (depr.loop.passed()) {
fprintf(stderr, "The --loop/-l option is deprecated. Use --num-cycles\n");
maxCycles = -1;
} else {
maxCycles = o_numCycles.result();
}
if (o_populateOnly.passed()) {
// Determine how many iterations are required.
if (o_numCycles.passed()) {
throw std::runtime_error("--num-cycles incompatible with --populate-only");
}
size_t est = (o_numItems / o_numThreads) / o_multiSize;
while (est * o_numThreads * o_multiSize < o_numItems) {
est++;
}
maxCycles = est;
o_sequential.setDefault(true);
fprintf(stderr, "Populating using %d cycles\n", maxCycles);
}
if (depr.iterations.passed()) {
fprintf(stderr, "The --num-iterations/-I option is deprecated. Use --batch-size\n");
opsPerCycle = depr.iterations.result();
}
vector<TemplateSpec> specs;
vector<string> userdocs;
if (o_templatePairs.passed()) {
vector<string> specs_str = o_templatePairs.result();
for (size_t ii = 0; ii < specs_str.size(); ii++) {
specs.push_back(parseTemplateSpec(specs_str[ii]));
}
}
// Set the document sizes..
if (o_userdocs.passed()) {
if (o_minSize.passed() || o_maxSize.passed()) {
fprintf(stderr, "--min-size/--max-size invalid with userdocs\n");
}
vector<string> filenames = o_userdocs.result();
for (size_t ii = 0; ii < filenames.size(); ii++) {
std::stringstream ss;
std::ifstream ifs(filenames[ii].c_str());
if (!ifs.is_open()) {
perror(filenames[ii].c_str());
exit(EXIT_FAILURE);
}
ss << ifs.rdbuf();
userdocs.push_back(ss.str());
}
}
if (specs.empty()) {
if (o_writeJson.result()) {
docgen = new JsonDocGenerator(o_minSize.result(), o_maxSize.result(), o_randomBody.numSpecified());
} else if (!userdocs.empty()) {
docgen = new PresetDocGenerator(userdocs);
} else {
docgen = new RawDocGenerator(o_minSize.result(), o_maxSize.result(), o_randomBody.numSpecified());
}
} else {
if (o_writeJson.result()) {
if (userdocs.empty()) {
docgen = new PlaceholderJsonGenerator(
o_minSize.result(), o_maxSize.result(), specs, o_randomBody.numSpecified());
} else {
docgen = new PlaceholderJsonGenerator(userdocs, specs);
}
} else {
if (userdocs.empty()) {
throw std::runtime_error("Must provide documents with placeholders!");
}
docgen = new PlaceholderDocGenerator(userdocs, specs);
}
}
sdOpsPerCmd = o_sdPathCount.result();
if (o_sdPathCount.passed()) {
o_subdoc.setDefault(true);
}
if (o_collection.passed()) {
string separator = o_separator.result();
if (separator.empty()) {
throw std::runtime_error("Collection name separator must not be empty");
}
vector<string> names = o_collection.result();
for (size_t ii = 0; ii < names.size(); ii++) {
collections.push_back(names[ii] + separator);
}
}
}
void addOptions(Parser& parser) {
parser.addOption(o_multiSize);
parser.addOption(o_numItems);
parser.addOption(o_keyPrefix);
parser.addOption(o_numThreads);
parser.addOption(o_randSeed);
parser.addOption(o_randomBody);
parser.addOption(o_setPercent);
parser.addOption(o_noPopulate);
parser.addOption(o_minSize);
parser.addOption(o_maxSize);
parser.addOption(o_pauseAtEnd);
parser.addOption(o_numCycles);
parser.addOption(o_sequential);
parser.addOption(o_startAt);
parser.addOption(o_rateLimit);
parser.addOption(o_userdocs);
parser.addOption(o_writeJson);
parser.addOption(o_templatePairs);
parser.addOption(o_subdoc);
parser.addOption(o_noop);
parser.addOption(o_sdPathCount);
parser.addOption(o_populateOnly);
parser.addOption(o_exptime);
parser.addOption(o_collection);
parser.addOption(o_separator);
parser.addOption(o_persist);
parser.addOption(o_replicate);
parser.addOption(o_lock);
params.addToParser(parser);
depr.addOptions(parser);
}
int numTimings(void) { return params.numTimings(); }
bool isLoopDone(size_t niter) {
if (maxCycles == -1) {
return false;
}
return niter >= (size_t)maxCycles;
}
uint32_t getRandomSeed() { return o_randSeed; }
uint32_t getNumThreads() { return o_numThreads; }
string& getKeyPrefix() { return prefix; }
bool shouldPauseAtEnd() { return o_pauseAtEnd; }
bool sequentialAccess() { return o_sequential; }
bool isSubdoc() { return o_subdoc; }
bool isNoop() { return o_noop.result(); }
bool useCollections() { return o_collection.passed(); }
bool writeJson() { return o_writeJson.result(); }
unsigned firstKeyOffset() { return o_startAt; }
uint32_t getNumItems() { return o_numItems; }
uint32_t getRateLimit() { return o_rateLimit; }
unsigned getExptime() { return o_exptime; }
uint32_t opsPerCycle;
uint32_t sdOpsPerCmd;
unsigned setprc;
string prefix;
volatile int maxCycles;
bool shouldPopulate;
bool hasTemplates;
ConnParams params;
const DocGeneratorBase *docgen;
vector<string> collections;
int replicateTo;
int persistTo;
int lockTime;
private:
UIntOption o_multiSize;
UIntOption o_numItems;
StringOption o_keyPrefix;
UIntOption o_numThreads;
UIntOption o_randSeed;
BoolOption o_randomBody;
UIntOption o_setPercent;
UIntOption o_minSize;
UIntOption o_maxSize;
BoolOption o_noPopulate;
BoolOption o_pauseAtEnd; // Should pillowfight pause execution (with
// connections open) before exiting?
IntOption o_numCycles;
BoolOption o_sequential;
UIntOption o_startAt;
UIntOption o_rateLimit;
// List of paths to user documents to load.. They should all be valid JSON
ListOption o_userdocs;
// Whether generated values should be JSON
BoolOption o_writeJson;
// List of template ranges for value generation
ListOption o_templatePairs;
BoolOption o_subdoc;
BoolOption o_noop;
UIntOption o_sdPathCount;
// Compound option
BoolOption o_populateOnly;
UIntOption o_exptime;
ListOption o_collection;
StringOption o_separator;
IntOption o_persist;
IntOption o_replicate;
IntOption o_lock;
DeprecatedOptions depr;
} config;
void log(const char *format, ...)
{
char buffer[512];
va_list args;
va_start(args, format);
vsprintf(buffer, format, args);
if (config.numTimings() > 0) {
std::cerr << "[" << std::fixed << lcb_nstime() / 1000000000.0 << "] ";
}
std::cerr << buffer << std::endl;
va_end(args);
}
extern "C" {
static void operationCallback(lcb_t, int, const lcb_RESPBASE*);
static void storeCallback(lcb_t, int, const lcb_RESPBASE *);
}
class ThreadContext;
class InstanceCookie {
public:
InstanceCookie(lcb_t instance) {
lcb_set_cookie(instance, this);
lastPrint = 0;
if (config.numTimings() > 0) {
hg.install(instance, stdout);
}
stats.total = 0;
stats.retried = 0;
stats.etmpfail = 0;
stats.eexist = 0;
stats.etimeout = 0;
}
static InstanceCookie* get(lcb_t instance) {
return (InstanceCookie *)lcb_get_cookie(instance);
}
static void dumpTimings(lcb_t instance, const char *header = NULL, bool force=false) {
time_t now = time(NULL);
InstanceCookie *ic = get(instance);
if (now - ic->lastPrint > 0) {
ic->lastPrint = now;
} else if (!force) {
return;
}
Histogram &h = ic->hg;
if (header) {
printf("[%f %s]\n", lcb_nstime() / 1000000000.0, header);
}
printf(" +---------+---------+---------+---------+\n");
h.write();
printf(" +----------------------------------------\n");
}
void setContext(ThreadContext *context) {
m_context = context;
}
ThreadContext * getContext() {
return m_context;
}
struct {
size_t total;
size_t retried;
size_t etmpfail;
size_t eexist;
size_t etimeout;
} stats;
private:
time_t lastPrint;
Histogram hg;
ThreadContext *m_context;
};
struct NextOp {
NextOp() : m_seqno(0), m_mode(GET), m_cas(0) {}
string m_key;
uint32_t m_seqno;
vector<lcb_IOV> m_valuefrags;
vector<lcb_SDSPEC> m_specs;
// The mode here is for future use with subdoc
enum Mode { STORE, GET, SDSTORE, SDGET, NOOP };
Mode m_mode;
uint64_t m_cas;
};
class OpGenerator {
public:
OpGenerator(int id): m_id(id) {}
virtual ~OpGenerator() {};
virtual void setNextOp(NextOp& op) = 0;
virtual void setValue(NextOp& op) = 0;
virtual void populateIov(uint32_t, vector<lcb_IOV>&) = 0;
virtual bool inPopulation() const = 0;
virtual void checkin(uint32_t) = 0;
virtual const char *getStageString() const = 0;
protected:
int m_id;
};
class NoopGenerator : public OpGenerator {
public:
NoopGenerator(int ix) : OpGenerator(ix) {}
void setNextOp(NextOp& op) {
op.m_mode = NextOp::NOOP;
}
void setValue(NextOp&) {}
void populateIov(uint32_t, vector<lcb_IOV>&) {}
bool inPopulation() const {
return false;
}
void checkin(uint32_t) {}
const char *getStageString() const {
return "Run";
}
};
/** Stateful, per-thread generator */
class KeyGenerator : public OpGenerator {
public:
KeyGenerator(int ix)
: OpGenerator(ix), m_gencount(0), m_force_sequential(false),
m_in_population(config.shouldPopulate)
{
srand(config.getRandomSeed());
m_genrandom = new SeqGenerator(
config.firstKeyOffset(),
config.getNumItems() + config.firstKeyOffset());
m_gensequence = new SeqGenerator(
config.firstKeyOffset(),
config.getNumItems() + config.firstKeyOffset(),
config.getNumThreads(),
ix);
if (m_in_population) {
m_force_sequential = true;
} else {
m_force_sequential = config.sequentialAccess();
}
m_local_genstate = config.docgen->createState(config.getNumThreads(), ix);
if (config.isSubdoc()) {
m_mode_read = NextOp::SDGET;
m_mode_write = NextOp::SDSTORE;
m_sdgenstate = config.docgen->createSubdocState(config.getNumThreads(), ix);
if (!m_sdgenstate) {
std::cerr << "Current generator does not support subdoc. Did you try --json?" << std::endl;
exit(EXIT_FAILURE);
}
} else {
m_mode_read = NextOp::GET;
m_mode_write = NextOp::STORE;
}
}
void setValue(NextOp& op) {
m_local_genstate->populateIov(op.m_seqno, op.m_valuefrags);
}
void populateIov(uint32_t seq, vector<lcb_IOV>& iov_out) {
m_local_genstate->populateIov(seq, iov_out);
}
void setNextOp(NextOp& op) {
bool store_override = false;
if (m_in_population) {
if (m_gencount++ < m_gensequence->maxItems()) {
store_override = true;
} else {
printf("Thread %d has finished populating.\n", m_id);
m_in_population = false;
m_force_sequential = config.sequentialAccess();
}
}
if (m_in_population || !config.lockTime) {
op.m_seqno = (m_force_sequential ? m_gensequence : m_genrandom)->next();
} else {
op.m_seqno = (m_force_sequential ? m_gensequence : m_genrandom)->checkout();
}
if (store_override) {
// Populate
op.m_mode = NextOp::STORE;
setValue(op);
} else if (shouldStore(op.m_seqno)) {
op.m_mode = m_mode_write;
if (op.m_mode == NextOp::STORE) {
setValue(op);
} else if (op.m_mode == NextOp::SDSTORE) {
op.m_specs.resize(config.sdOpsPerCmd);
m_sdgenstate->populateMutate(op.m_seqno, op.m_specs);
} else {
fprintf(stderr, "Invalid mode for op: %d\n", op.m_mode);
abort();
}
} else {
op.m_mode = m_mode_read;
if (op.m_mode == NextOp::SDGET) {
op.m_specs.resize(config.sdOpsPerCmd);
m_sdgenstate->populateLookup(op.m_seqno, op.m_specs);
}
}
generateKey(op);
}
bool inPopulation() const {
return m_in_population;
}
void checkin(uint32_t seqno) {
(m_force_sequential ? m_gensequence : m_genrandom)->checkin(seqno);
}
const char *getStageString() const {
if (m_in_population) {
return "Populate";
} else {
return "Run";
}
}
private:
bool shouldStore(uint32_t seqno) {
if (config.setprc == 0) {
return false;
}
float seqno_f = seqno % 100;
float pct_f = seqno_f / config.setprc;
return pct_f < 1;
}
void generateKey(NextOp& op) {
uint32_t seqno = op.m_seqno;
char buffer[21];
snprintf(buffer, sizeof(buffer), "%020d", seqno);
string &prefix = config.useCollections()
? config.collections[seqno % config.collections.size()]
: config.getKeyPrefix();
op.m_key.assign(prefix + buffer);
}
SeqGenerator *m_genrandom;
SeqGenerator *m_gensequence;
size_t m_gencount;
bool m_force_sequential;
bool m_in_population;
NextOp::Mode m_mode_read;
NextOp::Mode m_mode_write;
GeneratorState *m_local_genstate;
SubdocGeneratorState *m_sdgenstate;
};
#define OPFLAGS_LOCKED 0x01
class ThreadContext
{
public:
ThreadContext(lcb_t handle, int ix) : niter(0), instance(handle) {
if (config.isNoop()) {
gen = new NoopGenerator(ix);
} else {
gen = new KeyGenerator(ix);
}
}
~ThreadContext() {
delete gen;
gen = NULL;
}
bool inPopulation() {
return gen && (gen->inPopulation() || !retryq.empty());
}
void checkin(uint32_t seqno) {
if (gen) {
gen->checkin(seqno);
}
}
void singleLoop() {
bool hasItems = false;
lcb_sched_enter(instance);
for (size_t ii = 0; ii < config.opsPerCycle; ++ii) {
hasItems = scheduleNextOperation();
}
if (hasItems) {
error = LCB_SUCCESS;
lcb_sched_leave(instance);
lcb_wait(instance);
} else {
lcb_sched_fail(instance);
}
purgeRetryQueue();
}
void purgeRetryQueue() {
NextOp opinfo;
InstanceCookie *cookie = InstanceCookie::get(instance);
while (!retryq.empty()) {
unsigned exptime = config.getExptime();
lcb_sched_enter(instance);
while (!retryq.empty()) {
opinfo = retryq.front();
retryq.pop();
lcb_CMDSTOREDUR scmd = { 0 };
scmd.operation = LCB_SET;
scmd.exptime = exptime;
LCB_CMD_SET_KEY(&scmd, opinfo.m_key.c_str(), opinfo.m_key.size());
LCB_CMD_SET_VALUEIOV(&scmd, &opinfo.m_valuefrags[0], opinfo.m_valuefrags.size());
if (config.persistTo > 0 || config.replicateTo > 0) {
scmd.persist_to = config.persistTo;
scmd.replicate_to = config.replicateTo;
error = lcb_storedur3(instance, NULL, &scmd);
} else {
error = lcb_store3(instance, NULL, reinterpret_cast<lcb_CMDSTORE*>(&scmd));
}
cookie->stats.retried++;
}
lcb_sched_leave(instance);
lcb_wait(instance);
if (error != LCB_SUCCESS) {
log("Operation(s) failed: [0x%x] %s", error, lcb_strerror(instance, error));
}
}
}
bool scheduleNextOperation()
{
NextOp opinfo;
unsigned exptime = config.getExptime();
gen->setNextOp(opinfo);
switch (opinfo.m_mode) {
case NextOp::STORE: {
if (!gen->inPopulation() && config.lockTime > 0) {
lcb_CMDGET gcmd = { 0 };
LCB_CMD_SET_KEY(&gcmd, opinfo.m_key.c_str(), opinfo.m_key.size());
gcmd.lock = config.lockTime;
error = lcb_get3(instance, (void *)OPFLAGS_LOCKED, &gcmd);
} else {
lcb_CMDSTOREDUR scmd = { 0 };
scmd.operation = LCB_SET;
scmd.exptime = exptime;
if (config.writeJson()) {
scmd.datatype = LCB_VALUE_F_JSON;
}
LCB_CMD_SET_KEY(&scmd, opinfo.m_key.c_str(), opinfo.m_key.size());
LCB_CMD_SET_VALUEIOV(&scmd, &opinfo.m_valuefrags[0], opinfo.m_valuefrags.size());
if (config.persistTo > 0 || config.replicateTo > 0) {
scmd.persist_to = config.persistTo;
scmd.replicate_to = config.replicateTo;
error = lcb_storedur3(instance, NULL, &scmd);
} else {
error = lcb_store3(instance, NULL, reinterpret_cast<lcb_CMDSTORE*>(&scmd));
}
}
break;
}
case NextOp::GET: {
lcb_CMDGET gcmd = { 0 };
LCB_CMD_SET_KEY(&gcmd, opinfo.m_key.c_str(), opinfo.m_key.size());
gcmd.exptime = exptime;
error = lcb_get3(instance, this, &gcmd);
break;
}
case NextOp::SDSTORE:
case NextOp::SDGET: {
lcb_CMDSUBDOC sdcmd = { 0 };
if (opinfo.m_mode == NextOp::SDSTORE) {
sdcmd.exptime = exptime;
}
LCB_CMD_SET_KEY(&sdcmd, opinfo.m_key.c_str(), opinfo.m_key.size());
sdcmd.specs = &opinfo.m_specs[0];
sdcmd.nspecs = opinfo.m_specs.size();
error = lcb_subdoc3(instance, NULL, &sdcmd);
break;
}
case NextOp::NOOP: {
lcb_CMDNOOP ncmd = { 0 };
error = lcb_noop3(instance, NULL, &ncmd);
break;
}
}
if (error != LCB_SUCCESS) {
log("Failed to schedule operation: [0x%x] %s", error, lcb_strerror(instance, error));
return false;
} else {
return true;
}
}
bool run() {
do {
singleLoop();
if (config.numTimings() > 1) {
InstanceCookie::dumpTimings(instance, gen->getStageString());
}
if (config.params.shouldDump()) {
lcb_dump(instance, stderr, LCB_DUMP_ALL);
}
if (config.getRateLimit() > 0) {
rateLimitThrottle();
}
} while (!config.isLoopDone(++niter));
if (config.numTimings() > 1) {
InstanceCookie::dumpTimings(instance, gen->getStageString(), true);
}
return true;
}
void retry(NextOp &op) {
if (op.m_mode == NextOp::STORE) {
gen->setValue(op);
}
retryq.push(op);
}
void populateIov(uint32_t seq, vector<lcb_IOV>& iov_out)
{
gen->populateIov(seq, iov_out);
}
#ifndef WIN32
pthread_t thr;
#endif
lcb_t getInstance() {
return instance;
}
protected:
// the callback methods needs to be able to set the error handler..
friend void operationCallback(lcb_t, int, const lcb_RESPBASE*);
friend void storeCallback(lcb_t, int, const lcb_RESPBASE *);
Histogram histogram;
void setError(lcb_error_t e) { error = e; }
private:
void rateLimitThrottle() {
lcb_U64 now = lcb_nstime();
static lcb_U64 previous_time = now;
const lcb_U64 elapsed_ns = now - previous_time;
const lcb_U64 wanted_duration_ns =
(config.getNumThreads() * config.opsPerCycle * 1e9) / config.getRateLimit();
// On first invocation no previous_time, so skip attempting to sleep.
if (elapsed_ns > 0 && elapsed_ns < wanted_duration_ns) {
// Dampen the sleep time by averaging with the previous
// sleep time.
static lcb_U64 last_sleep_ns = 0;
const lcb_U64 sleep_ns =
(last_sleep_ns + wanted_duration_ns - elapsed_ns) / 2;
usleep(sleep_ns / 1000);
now += sleep_ns;
last_sleep_ns = sleep_ns;
}
previous_time = now;
}
OpGenerator *gen;
size_t niter;
lcb_error_t error;
lcb_t instance;
std::queue<NextOp> retryq;
};
static void updateOpsPerSecDisplay()
{
static time_t start_time = time(NULL);
static int is_tty =
#ifdef WIN32
0;
#else
isatty(STDERR_FILENO);
#endif
static volatile unsigned long nops = 0;
time_t now = time(NULL);
time_t nsecs = now - start_time;
if (!nsecs) { nsecs = 1; }
unsigned long ops_sec = nops / nsecs;
if (++nops % 10000 == 0) {
fprintf(stderr, "OPS/SEC: %10lu%c", ops_sec, is_tty ? '\r' : '\n');
}
}
static void updateStats(InstanceCookie *cookie, lcb_error_t rc)
{
cookie->stats.total++;
switch (rc) {
case LCB_ETMPFAIL:
cookie->stats.etmpfail++;
break;
case LCB_KEY_EEXISTS:
cookie->stats.eexist++;
break;
case LCB_ETIMEDOUT:
cookie->stats.etimeout++;
break;
default:
break;
}
}
static void operationCallback(lcb_t instance, int cbtype, const lcb_RESPBASE *resp)
{
InstanceCookie *cookie = InstanceCookie::get(instance);
ThreadContext *tc = cookie->getContext();
tc->setError(resp->rc);
updateStats(cookie, resp->rc);
uintptr_t flags = 0;
if (resp->cookie) {
flags = (uintptr_t)resp->cookie;
}
bool done = true;
string key((const char*)resp->key, resp->nkey);
uint32_t seqno = atoi(key.c_str());
if (cbtype == LCB_CALLBACK_GET && (flags & OPFLAGS_LOCKED)) {
if (resp->rc == LCB_SUCCESS) {
lcb_CMDSTOREDUR scmd = { 0 };
vector<lcb_IOV> valuefrags;
scmd.operation = LCB_SET;
scmd.exptime = config.getExptime();
scmd.cas = resp->cas;
tc->populateIov(seqno, valuefrags);
LCB_CMD_SET_KEY(&scmd, resp->key, resp->nkey);
LCB_CMD_SET_VALUEIOV(&scmd, &valuefrags[0], valuefrags.size());
if (config.persistTo > 0 || config.replicateTo > 0) {
scmd.persist_to = config.persistTo;
scmd.replicate_to = config.replicateTo;
lcb_storedur3(instance, NULL, &scmd);
} else {
lcb_store3(instance, NULL, reinterpret_cast<lcb_CMDSTORE*>(&scmd));
}
done = false;
} else if (resp->rc == LCB_ETMPFAIL) {
NextOp op;
op.m_mode = NextOp::STORE;
op.m_key = key;
op.m_seqno = seqno;
tc->retry(op);
done = false;
}
}
if (done) {
tc->checkin(seqno);
}
updateOpsPerSecDisplay();
}
static void storeCallback(lcb_t instance, int, const lcb_RESPBASE *resp)
{
InstanceCookie *cookie = InstanceCookie::get(instance);
ThreadContext *tc = cookie->getContext();
tc->setError(resp->rc);
updateStats(cookie, resp->rc);
string key((const char*)resp->key, resp->nkey);
uint32_t seqno = atoi(key.c_str());
if (resp->rc != LCB_SUCCESS && tc->inPopulation()) {
NextOp op;
op.m_mode = NextOp::STORE;
op.m_key = key;
op.m_seqno = seqno;
tc->retry(op);
} else {
tc->checkin(seqno);
}