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Commit332d916

Browse files
knizhnikkelvich
authored andcommitted
Fix of automatic resolve of node_id
1 parenta939b57 commit332d916

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2 files changed

+84
-45
lines changed

2 files changed

+84
-45
lines changed

‎multimaster.c

Lines changed: 23 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -318,6 +318,13 @@ void MtmReleaseLocks(void)
318318
* locks[N+1..2*N] are used to synchronize access to distributed lock graph at each node
319319
* -------------------------------------------
320320
*/
321+
statictimestamp_tMtmLockLastReportTime;
322+
statictimestamp_tMtmLockElapsedWaitTime;
323+
statictimestamp_tMtmLockMaxWaitTime;
324+
staticsize_tMtmLockHitCount;
325+
326+
#defineDEBUG_MTM_LOCK 1
327+
321328
voidMtmLock(LWLockModemode)
322329
{
323330
if (!MtmAtExitHookRegistered) {
@@ -330,18 +337,28 @@ void MtmLock(LWLockMode mode)
330337
}
331338
else
332339
{
333-
#ifDEBUG_LEVEL>1
340+
#ifDEBUG_MTM_LOCK
334341
timestamp_tstart,stop;
335342
start=MtmGetSystemTime();
336343
#endif
337344
if (MyProc==NULL) {/* Can not wait if have no PGPROC. It can happen at process exit. TODO: without lock we can get race condition and corrupt Mtm state */
338345
return;
339346
}
340347
LWLockAcquire((LWLockId)&Mtm->locks[MTM_STATE_LOCK_ID],mode);
341-
#ifDEBUG_LEVEL>1
348+
#ifDEBUG_MTM_LOCK
342349
stop=MtmGetSystemTime();
343-
if (stop>start+MSEC_TO_USEC(MtmHeartbeatSendTimeout)) {
344-
MTM_LOG1("%d: obtaining %s lock takes %lld microseconds",MyProcPid, (mode==LW_EXCLUSIVE ?"exclusive" :"shared"),stop-start);
350+
MtmLockElapsedWaitTime+=stop-start;
351+
if (stop-start>MtmLockMaxWaitTime) {
352+
MtmLockMaxWaitTime=stop-start;
353+
}
354+
MtmLockHitCount+=1;
355+
if (stop-MtmLockLastReportTime>USECS_PER_SEC) {
356+
MTM_LOG1("%d: average lock wait time %lld usec, maximal lock wait time: %lld usec",
357+
MyProcPid,MtmLockElapsedWaitTime/MtmLockHitCount,MtmLockMaxWaitTime);
358+
MtmLockLastReportTime=stop;
359+
MtmLockMaxWaitTime=0;
360+
MtmLockElapsedWaitTime=0;
361+
MtmLockHitCount=0;
345362
}
346363
#endif
347364
if (mode==LW_EXCLUSIVE) {
@@ -2869,7 +2886,7 @@ static void MtmSplitConnStrs(void)
28692886
}
28702887
for (i=0;i<MtmNodes;i++) {
28712888
MTM_LOG3("Node %d, host %s, port=%d, my port %d",i,MtmConnections[i].hostName,MtmConnections[i].postmasterPort,PostPortNumber);
2872-
if ((strcmp(MtmConnections[i].hostName,buf)==0||strcmp(MtmConnections[i].hostName,"localhost")==0)
2889+
if ((strcmp(MtmConnections[i].hostName,buf)==0||strcmp(MtmConnections[i].hostName,"localhost")==0||strcmp(MtmConnections[i].hostName,"127.0.0.1")==0)
28732890
&&MtmConnections[i].postmasterPort==PostPortNumber)
28742891
{
28752892
if (MtmNodeId==INT_MAX) {
@@ -2880,7 +2897,7 @@ static void MtmSplitConnStrs(void)
28802897
}
28812898
}
28822899
if (MtmNodeId==INT_MAX) {
2883-
MTM_ELOG(ERROR,"multimaster.node_id and host name %s can not be located in connection strings list",buf);
2900+
MTM_ELOG(ERROR,"multimaster.node_idis not specifiedand host name %s can not be located in connection strings list",buf);
28842901
}
28852902
}elseif (MtmNodeId>i) {
28862903
MTM_ELOG(ERROR,"Multimaster node id %d is out of range [%d..%d]",MtmNodeId,1,MtmNodes);

‎tests/dtmbench.cpp

Lines changed: 61 additions & 39 deletions
Original file line numberDiff line numberDiff line change
@@ -4,6 +4,7 @@
44
#include<stdlib.h>
55
#include<inttypes.h>
66
#include<sys/time.h>
7+
#include<unistd.h>
78
#include<pthread.h>
89

910
#include<string>
@@ -22,7 +23,7 @@ template<class T>
2223
classmy_unique_ptr
2324
{
2425
T* ptr;
25-
26+
2627
public:
2728
my_unique_ptr(T* p =NULL) : ptr(p) {}
2829
~my_unique_ptr() {delete ptr; }
@@ -32,7 +33,7 @@ class my_unique_ptr
3233
voidoperator=(my_unique_ptr& other) {
3334
ptr = other.ptr;
3435
other.ptr =NULL;
35-
}
36+
}
3637
};
3738

3839
typedefvoid* (*thread_proc_t)(void*);
@@ -47,7 +48,7 @@ struct thread
4748
size_t aborts;
4849
int id;
4950

50-
voidstart(int tid,thread_proc_t proc) {
51+
voidstart(int tid,thread_proc_t proc) {
5152
id = tid;
5253
updates =0;
5354
selects =0;
@@ -56,7 +57,7 @@ struct thread
5657
pthread_create(&t,NULL, proc,this);
5758
}
5859

59-
voidwait() {
60+
voidwait() {
6061
pthread_join(t,NULL);
6162
}
6263
};
@@ -72,7 +73,7 @@ struct config
7273
bool scatter;
7374
bool avoidDeadlocks;
7475
bool subtransactions;
75-
76+
7677
config() {
7778
nReaders =1;
7879
nWriters =10;
@@ -118,7 +119,7 @@ T execQuery( transaction_base& txn, char const* sql, ...)
118119
va_end(args);
119120
result r = txn.exec(buf);
120121
return r[0][0].as(T());
121-
}
122+
}
122123

123124
void*reader(void* arg)
124125
{
@@ -134,7 +135,7 @@ void* reader(void* arg)
134135
result r = txn.exec("select sum(v) from t");
135136
int64_t sum = r[0][0].as(int64_t());
136137
if (sum != prevSum) {
137-
r = txn.exec("select mtm.get_snapshot()");
138+
r = txn.exec("select mtm.get_snapshot()");
138139
printf("Total=%ld, snapshot=%ld\n", sum, r[0][0].as(int64_t()));
139140
prevSum = sum;
140141
}
@@ -144,7 +145,7 @@ void* reader(void* arg)
144145
}
145146
returnNULL;
146147
}
147-
148+
148149
void*writer(void* arg)
149150
{
150151
thread& t = *(thread*)arg;
@@ -153,17 +154,17 @@ void* writer(void* arg)
153154
conns[i] =newconnection(cfg.connections[i]);
154155
}
155156
for (int i =0; i < cfg.nIterations; i++)
156-
{
157-
//work
157+
{
158+
//work
158159
//transaction<repeatable_read> txn(*conns[random() % conns.size()]);
159160
transaction<read_committed>txn(*conns[random() % conns.size()]);
160161
int srcAcc =random() % cfg.nAccounts;
161162
int dstAcc =random() % cfg.nAccounts;
162-
if (cfg.scatter) {
163+
if (cfg.scatter) {
163164
srcAcc = srcAcc/cfg.nWriters*cfg.nWriters + t.id;
164165
dstAcc = dstAcc/cfg.nWriters*cfg.nWriters + t.id;
165-
}elseif (cfg.subtransactions) {
166-
if (dstAcc < srcAcc) {
166+
}elseif (cfg.subtransactions) {
167+
if (dstAcc < srcAcc) {
167168
int tmp = srcAcc;
168169
srcAcc = dstAcc;
169170
dstAcc = tmp;
@@ -173,7 +174,7 @@ void* writer(void* arg)
173174
subtransactionsubtxn(txn,"withdraw");
174175
exec(subtxn,"update t set v = v - 1 where u=%d", srcAcc);
175176
break;
176-
}catch (pqxx_exceptionconst& x) {
177+
}catch (pqxx_exceptionconst& x) {
177178
t.aborts +=1;
178179
}
179180
}
@@ -182,36 +183,36 @@ void* writer(void* arg)
182183
subtransactionsubtxn(txn,"deposit");
183184
exec(subtxn,"update t set v = v + 1 where u=%d", dstAcc);
184185
break;
185-
}catch (pqxx_exceptionconst& x) {
186+
}catch (pqxx_exceptionconst& x) {
186187
t.aborts +=1;
187188
}
188189
}
189-
txn.commit();
190+
txn.commit();
190191
t.transactions +=1;
191192
continue;
192-
}elseif (cfg.avoidDeadlocks) {
193-
if (dstAcc < srcAcc) {
193+
}elseif (cfg.avoidDeadlocks) {
194+
if (dstAcc < srcAcc) {
194195
int tmp = srcAcc;
195196
srcAcc = dstAcc;
196197
dstAcc = tmp;
197198
}
198199
}
199-
try {
200-
if (random() %100 < cfg.updatePercent) {
200+
try {
201+
if (random() %100 < cfg.updatePercent) {
201202
exec(txn,"update t set v = v - 1 where u=%d", srcAcc);
202203
exec(txn,"update t set v = v + 1 where u=%d", dstAcc);
203204
t.updates +=2;
204-
}else {
205+
}else {
205206
int64_t sum = execQuery<int64_t>(txn,"select v from t where u=%d", srcAcc)
206207
+ execQuery<int64_t>(txn,"select v from t where u=%d", dstAcc);
207-
if (sum > cfg.nIterations*cfg.nWriters || sum < -cfg.nIterations*cfg.nWriters) {
208+
if (sum > cfg.nIterations*cfg.nWriters || sum < -cfg.nIterations*cfg.nWriters) {
208209
printf("Wrong sum=%ld\n", sum);
209210
}
210211
t.selects +=2;
211212
}
212-
txn.commit();
213+
txn.commit();
213214
t.transactions +=1;
214-
}catch (pqxx_exceptionconst& x) {
215+
}catch (pqxx_exceptionconst& x) {
215216
txn.abort();
216217
t.aborts +=1;
217218
i -=1;
@@ -220,7 +221,24 @@ void* writer(void* arg)
220221
}
221222
returnNULL;
222223
}
223-
224+
225+
void*monitor(void* arg)
226+
{
227+
vector<thread>& writers = *(vector<thread>*)arg;
228+
time_t start =time(NULL);
229+
size_t elapsed =0;
230+
while (running) {
231+
sleep(1);
232+
long total =0;
233+
for (int i =0; i < cfg.nWriters; i++) {
234+
total += writers[i].transactions;
235+
}
236+
printf("%d: %5ld TPS\n",int(time(NULL) - start),long(total - elapsed));
237+
elapsed = total;
238+
}
239+
returnNULL;
240+
}
241+
224242
voidinitializeDatabase()
225243
{
226244
connectionconn(cfg.connections[0]);
@@ -251,15 +269,15 @@ int main (int argc, char* argv[])
251269
return1;
252270
}
253271

254-
for (int i =1; i < argc; i++) {
255-
if (argv[i][0] =='-') {
256-
switch (argv[i][1]) {
272+
for (int i =1; i < argc; i++) {
273+
if (argv[i][0] =='-') {
274+
switch (argv[i][1]) {
257275
case'r':
258276
cfg.nReaders =atoi(argv[++i]);
259277
continue;
260278
case'w':
261279
cfg.nWriters =atoi(argv[++i]);
262-
continue;
280+
continue;
263281
case'a':
264282
cfg.nAccounts =atoi(argv[++i]);
265283
continue;
@@ -300,7 +318,7 @@ int main (int argc, char* argv[])
300318
return1;
301319
}
302320

303-
if (initialize) {
321+
if (initialize) {
304322
initializeDatabase();
305323
printf("%d accounts inserted\n", cfg.nAccounts);
306324
return0;
@@ -311,34 +329,38 @@ int main (int argc, char* argv[])
311329

312330
vector<thread>readers(cfg.nReaders);
313331
vector<thread>writers(cfg.nWriters);
332+
pthread_t logger;
333+
314334
size_t nAborts =0;
315335
size_t nUpdates =0;
316336
size_t nSelects =0;
317337
size_t nTransactions =0;
318338

319-
for (int i =0; i < cfg.nReaders; i++) {
339+
for (int i =0; i < cfg.nReaders; i++) {
320340
readers[i].start(i, reader);
321341
}
322-
for (int i =0; i < cfg.nWriters; i++) {
342+
for (int i =0; i < cfg.nWriters; i++) {
323343
writers[i].start(i, writer);
324344
}
325-
326-
for (int i =0; i < cfg.nWriters; i++) {
345+
pthread_create(&logger,NULL, monitor, &writers);
346+
347+
for (int i =0; i < cfg.nWriters; i++) {
327348
writers[i].wait();
328349
nUpdates += writers[i].updates;
329350
nSelects += writers[i].selects;
330351
nAborts += writers[i].aborts;
331352
nTransactions += writers[i].transactions;
332353
}
333-
354+
334355
running =false;
335356

336-
for (int i =0; i < cfg.nReaders; i++) {
357+
for (int i =0; i < cfg.nReaders; i++) {
337358
readers[i].wait();
338359
nSelects += readers[i].selects;
339360
nTransactions += writers[i].transactions;
340361
}
341-
362+
pthread_join(logger,NULL);
363+
342364
time_t elapsed =getCurrentTime() - start;
343365

344366
printf(
@@ -347,10 +369,10 @@ int main (int argc, char* argv[])
347369
"\"readers\":%d,\"writers\":%d,\"update_percent\":%d,\"accounts\":%d,\"iterations\":%d,\"hosts\":%ld}\n",
348370
(double)(nTransactions*USEC)/elapsed,
349371
nTransactions,
350-
nSelects,
372+
nSelects,
351373
nUpdates,
352374
nAborts,
353-
(int)(nAborts*100/nTransactions),
375+
(int)(nAborts*100/nTransactions),
354376
cfg.nReaders,
355377
cfg.nWriters,
356378
cfg.updatePercent,

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