Esempio n. 1
0
File: main.c Progetto: jbreams/mongo
/*
 * Each thread inserts a set of keys into the record store database. The keys
 * are generated in such a way that there are large gaps in the key range.
 */
static void *
thread_func(void *arg)
{
	TEST_OPTS *opts;
	WT_CURSOR *cursor, *idx_cursor;
	WT_SESSION *session;
	uint64_t i, ins_rotor, ins_thr_idx, thr_idx, ts;
	uint64_t *obj_data;

	opts = (TEST_OPTS *)arg;
	thr_idx = __wt_atomic_fetch_addv64(&opts->next_threadid, 1);
	ts = g_ts;
	obj_data = dcalloc(
	    (NR_OBJECTS/NR_THREADS + 1) * NR_FIELDS, sizeof(*obj_data));

	testutil_check(opts->conn->open_session(
	    opts->conn, NULL, NULL, &session));

	testutil_check(session->open_cursor(
	    session, opts->uri, NULL, NULL, &cursor));
	testutil_check(session->open_cursor(
	    session, "table:index", NULL, NULL, &idx_cursor));

	for (ins_rotor = 1; ins_rotor < 10; ++ins_rotor) {
		for (ins_thr_idx = thr_idx, i = 0; ins_thr_idx < NR_OBJECTS;
		    ins_thr_idx += NR_THREADS, i += NR_FIELDS) {

			testutil_check(
			    session->begin_transaction(session, "sync=false"));

			cursor->set_key(cursor, ins_thr_idx << 40 | ins_rotor);
			cursor->set_value(cursor, ts,
			    obj_data[i+0], obj_data[i+1], obj_data[i+2],
			    obj_data[i+3], obj_data[i+4], obj_data[i+5],
			    obj_data[i+6], obj_data[i+7]);
			testutil_check(cursor->insert(cursor));

			idx_cursor->set_key(
			    idx_cursor, ins_thr_idx << 40 | ts);
			idx_cursor->set_value(idx_cursor, ins_rotor);
			testutil_check(idx_cursor->insert(idx_cursor));

			testutil_check(
			    session->commit_transaction(session, NULL));

			/* change object fields */
			++obj_data[i + ((ins_thr_idx + ins_rotor) % NR_FIELDS)];
			++obj_data[i +
			    ((ins_thr_idx + ins_rotor + 1) % NR_FIELDS)];

			++g_ts;
			/* 5K updates/sec */
			(void)usleep(1000000ULL * NR_THREADS / 5000);
		}
	}

	testutil_check(session->close(session, NULL));
	free(obj_data);
	return (NULL);
}
Esempio n. 2
0
 void WiredTigerRecoveryUnit::_txnOpen() {
     invariant( !_active );
     WT_SESSION *s = _session->getSession();
     _syncing = _syncing || awaitCommitData.numWaitingForSync.load() > 0;
     invariantWTOK( s->begin_transaction(s, _syncing ? "sync=true" : NULL) );
     LOG(2) << "WT begin_transaction";
     _timer.reset();
     _active = true;
 }
    void WiredTigerRecoveryUnit::_txnOpen(OperationContext* opCtx) {
        invariant( !_active );
        _getTicket(opCtx);

        WT_SESSION *s = _session->getSession();
        _syncing = _syncing || waitUntilDurableData.numWaitingForSync.load() > 0;
        invariantWTOK( s->begin_transaction(s, _syncing ? "sync=true" : NULL) );
        LOG(2) << "WT begin_transaction";
        _timer.reset();
        _active = true;
    }
Esempio n. 4
0
    void WiredTigerKVEngine::syncSizeInfo() const {
        if ( !_sizeStorer )
            return;

        try {
            WiredTigerSession session( _conn, -1 );
            WT_SESSION* s = session.getSession();
            invariantWTOK( s->begin_transaction( s, "sync=true" ) );
            _sizeStorer->storeInto( &session, _sizeStorerUri );
            invariantWTOK( s->commit_transaction( s, NULL ) );
        }
        catch ( const WriteConflictException& de ) {
            // ignore, it means someone else is doing it
        }
    }
Esempio n. 5
0
File: main.c Progetto: jbreams/mongo
/*
 * Append to a table in a "racy" fashion - that is attempt to insert the
 * same record another thread is likely to also be inserting.
 */
void *
thread_insert_race(void *arg)
{
	TEST_OPTS *opts;
	WT_CONNECTION *conn;
	WT_CURSOR *cursor;
	WT_SESSION *session;
	uint64_t i, value;
	int ret;

	opts = (TEST_OPTS *)arg;
	conn = opts->conn;

	testutil_check(conn->open_session(conn, NULL, NULL, &session));
	testutil_check(session->open_cursor(
	    session, opts->uri, NULL, NULL, &cursor));

	printf("Running insert thread\n");
	for (i = 0; i < opts->nrecords; ++i) {
		testutil_check(
		    session->begin_transaction(session, "isolation=snapshot"));
		cursor->set_key(cursor, 1);
		testutil_check(cursor->search(cursor));
		testutil_check(cursor->get_value(cursor, &value));
		cursor->set_key(cursor, 1);
		cursor->set_value(cursor, value + 1);
		if ((ret = cursor->update(cursor)) != 0) {
			if (ret == WT_ROLLBACK) {
				testutil_check(session->rollback_transaction(
				    session, NULL));
				i--;
				continue;
			}
			printf("Error in update: %d\n", ret);
		}
		testutil_check(session->commit_transaction(session, NULL));
		if (i % 10000 == 0) {
			printf("insert: %" PRIu64 "\r", i);
			fflush(stdout);
		}
	}
	if (i > 10000)
		printf("\n");

	opts->running = false;

	return (NULL);
}
Esempio n. 6
0
void WiredTigerRecoveryUnit::_txnOpen(OperationContext* opCtx) {
    invariant(!_active);
    _ensureSession();

    WT_SESSION* s = _session->getSession();

    if (_readFromMajorityCommittedSnapshot) {
        _majorityCommittedSnapshot =
            _sessionCache->snapshotManager().beginTransactionOnCommittedSnapshot(s);
    } else {
        invariantWTOK(s->begin_transaction(s, NULL));
    }

    LOG(3) << "WT begin_transaction for snapshot id " << _mySnapshotId;
    _timer.reset();
    _active = true;
}
Esempio n. 7
0
void WiredTigerRecoveryUnit::_txnOpen(OperationContext* opCtx) {
    invariant(!_active);
    _getTicket(opCtx);

    WT_SESSION* s = _session->getSession();
    _syncing = _syncing || waitUntilDurableData.numWaitingForSync.load() > 0;

    if (_readFromMajorityCommittedSnapshot) {
        _sessionCache->snapshotManager().beginTransactionOnCommittedSnapshot(s, _syncing);
    } else {
        invariantWTOK(s->begin_transaction(s, _syncing ? "sync=true" : NULL));
    }

    LOG(2) << "WT begin_transaction";
    _timer.reset();
    _active = true;
}
	void do_startTransaction() override {
#if TERARK_WT_USE_TXN
		WT_SESSION* ses = m_session.ses;
		const char* txnConfig = getenv("TerarkDB_WiredtigerTransactionConfig");
		if (NULL == txnConfig) {
		// wiredtiger 2.8.0 is not binary compatible with 2.7.0
			txnConfig = "isolation=read-committed,sync=false";
		}
	//	fprintf(stderr, "INFO: %s: txnConfig=%s\n", BOOST_CURRENT_FUNCTION, txnConfig);
		int err = ses->begin_transaction(ses, txnConfig);
		if (err) {
			THROW_STD(invalid_argument
				, "ERROR: wiredtiger begin_transaction: %s"
				, ses->strerror(ses, err));
		}
#endif
		m_sizeDiff = 0;
	}
void WiredTigerRecoveryUnit::_txnOpen(OperationContext* opCtx) {
    invariant(!_active);
    _ensureSession();

    // Only start a timer for transaction's lifetime if we're going to log it.
    if (shouldLog(kSlowTransactionSeverity)) {
        _timer.reset(new Timer());
    }
    WT_SESSION* s = _session->getSession();

    if (_readFromMajorityCommittedSnapshot) {
        _majorityCommittedSnapshot =
            _sessionCache->snapshotManager().beginTransactionOnCommittedSnapshot(s);
    } else {
        invariantWTOK(s->begin_transaction(s, NULL));
    }

    LOG(3) << "WT begin_transaction for snapshot id " << _mySnapshotId;
    _active = true;
}
Esempio n. 10
0
int main(void)
{
	int ret;
	WT_CONNECTION *conn;
	WT_SESSION *session;
	WT_CURSOR *cursor;
	const char *key, *value;

	/*! [configure cache size] */
	if ((ret = wiredtiger_open(home, NULL,
	    "create,cache_size=500M", &conn)) != 0)
		fprintf(stderr, "Error connecting to %s: %s\n",
		    home, wiredtiger_strerror(ret));
	/*! [configure cache size] */

	/*! [create a table] */
	ret = conn->open_session(conn, NULL, NULL, &session);

	ret = session->create(session,
	    "table:access", "key_format=S,value_format=S");
	/*! [create a table] */

	/*! [transaction] */
	ret = session->begin_transaction(session, "priority=100,name=mytxn");

	ret = session->open_cursor(session, "config:", NULL, NULL, &cursor);

	while ((ret = cursor->next(cursor)) == 0) {
		cursor->get_key(cursor, &key);
		cursor->get_value(cursor, &value);
		printf("configuration value: %s = %s\n", key, value);
	}

	ret = session->commit_transaction(session, NULL);
	/*! [transaction] */

	ret = conn->close(conn, NULL);

	return (ret);
}
Esempio n. 11
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File: main.c Progetto: ajdavis/mongo
void
populate(TEST_OPTS *opts)
{
	WT_CURSOR *maincur;
	WT_RAND_STATE rnd;
	WT_SESSION *session;
	uint32_t key;
	int balance, i, flag, post;

	__wt_random_init_seed(NULL, &rnd);

	testutil_check(opts->conn->open_session(
	    opts->conn, NULL, NULL, &session));

	testutil_check(session->open_cursor(session, opts->uri, NULL, NULL,
	    &maincur));

	for (i = 0; i < N_INSERT; i++) {
		testutil_check(session->begin_transaction(session, NULL));
		key = (__wt_random(&rnd) % (N_RECORDS));
		maincur->set_key(maincur, key);
		if (__wt_random(&rnd) % 11 == 0)
			post = 54321;
		else
			post = i % 100000;
		if (__wt_random(&rnd) % 4 == 0) {
			balance = -100;
			flag = 1;
		} else {
			balance = 100 * (i + 1);
			flag = 0;
		}
		maincur->set_value(maincur, post, balance, flag, key);
		testutil_check(maincur->insert(maincur));
		testutil_check(session->commit_transaction(session, NULL));
	}
	testutil_check(maincur->close(maincur));
	testutil_check(session->close(session, NULL));
}
Esempio n. 12
0
/*
 * subtest_populate --
 *	Populate the tables.
 */
static void
subtest_populate(TEST_OPTS *opts, bool close_test)
{
	WT_CURSOR *maincur, *maincur2;
	WT_RAND_STATE rnd;
	WT_SESSION *session;
	uint64_t i, nrecords;
	uint32_t rndint;
	int key, v0, v1, v2;
	char *big, *bigref;
	bool failed;

	failed = false;
	__wt_random_init_seed(NULL, &rnd);
	CHECK(create_big_string(&bigref), false);
	nrecords = opts->nrecords;

	CHECK(opts->conn->open_session(
	    opts->conn, NULL, NULL, &session), false);

	CHECK(session->open_cursor(session, "table:subtest", NULL,
	    NULL, &maincur), false);

	CHECK(session->open_cursor(session, "table:subtest2", NULL,
	    NULL, &maincur2), false);

	for (i = 0; i < nrecords && !failed; i++) {
		rndint = __wt_random(&rnd);
		generate_key(i, &key);
		generate_value(rndint, i, bigref, &v0, &v1, &v2, &big);
		CHECK(session->begin_transaction(session, NULL), false);
		maincur->set_key(maincur, key);
		maincur->set_value(maincur, v0, v1, v2, big);
		CHECK(maincur->insert(maincur), false);

		maincur2->set_key(maincur2, key);
		maincur2->set_value(maincur2, rndint);
		CHECK(maincur2->insert(maincur2), false);
		CHECK(session->commit_transaction(session, NULL), false);

		if (i == 0)
			/*
			 * Force an initial checkpoint, that helps to
			 * distinguish a clear failure from just not running
			 * long enough.
			 */
			CHECK(session->checkpoint(session, NULL), false);

		if ((i + 1) % VERBOSE_PRINT == 0 && opts->verbose)
			printf("  %" PRIu64 "/%" PRIu64 "\n",
			    (i + 1), nrecords);
		/* Attempt to isolate the failures to checkpointing. */
		if (i == (nrecords/100)) {
			enable_failures(opts->nops, 1000000);
			/* CHECK should expect failures. */
			CHECK(session->checkpoint(session, NULL), true);
			disable_failures();
			if (failed && opts->verbose)
				printf("checkpoint failed (expected).\n");
		}
	}

	/*
	 * Closing handles after an extreme fail is likely to cause
	 * cascading failures (or crashes), so recommended practice is
	 * to immediately exit. We're interested in testing both with
	 * and without the recommended practice.
	 */
	if (failed) {
		if (!close_test) {
			fprintf(stderr, "exit early.\n");
			exit(0);
		} else
			fprintf(stderr, "closing after failure.\n");
	}

	free(bigref);
	CHECK(maincur->close(maincur), false);
	CHECK(maincur2->close(maincur2), false);
	CHECK(session->close(session, NULL), false);
}
Esempio n. 13
0
static void
transaction_ops(WT_SESSION *session_arg)
{
	WT_CONNECTION *conn;
	WT_CURSOR *cursor;
	WT_SESSION *session;

	session = session_arg;
	conn = session->connection;

	/*! [transaction commit/rollback] */
	/*
	 * Cursors may be opened before or after the transaction begins, and in
	 * either case, subsequent operations are included in the transaction.
	 * Opening cursors before the transaction begins allows applications to
	 * cache cursors and use them for multiple operations.
	 */
	error_check(session->open_cursor(
	    session, "table:mytable", NULL, NULL, &cursor));
	error_check(session->begin_transaction(session, NULL));

	cursor->set_key(cursor, "key");
	cursor->set_value(cursor, "value");
	switch (cursor->update(cursor)) {
	case 0:					/* Update success */
		error_check(session->commit_transaction(session, NULL));
		/*
		 * If commit_transaction succeeds, cursors remain positioned; if
		 * commit_transaction fails, the transaction was rolled-back and
		 * and all cursors are reset.
		 */
		break;
	case WT_ROLLBACK:			/* Update conflict */
	default:				/* Other error */
		error_check(session->rollback_transaction(session, NULL));
		/* The rollback_transaction call resets all cursors. */
		break;
	}

	/*
	 * Cursors remain open and may be used for multiple transactions.
	 */
	/*! [transaction commit/rollback] */
	error_check(cursor->close(cursor));

	/*! [transaction isolation] */
	/* A single transaction configured for snapshot isolation. */
	error_check(session->open_cursor(
	    session, "table:mytable", NULL, NULL, &cursor));
	error_check(session->begin_transaction(session, "isolation=snapshot"));
	cursor->set_key(cursor, "some-key");
	cursor->set_value(cursor, "some-value");
	error_check(cursor->update(cursor));
	error_check(session->commit_transaction(session, NULL));
	/*! [transaction isolation] */

	{
	/*! [transaction prepare] */
	/*
	 * Prepare a transaction which guarantees a subsequent commit will
	 * succeed. Only commit and rollback are allowed on a transaction after
	 * it has been prepared.
	 */
	error_check(session->open_cursor(
	    session, "table:mytable", NULL, NULL, &cursor));
	error_check(session->begin_transaction(session, NULL));
	cursor->set_key(cursor, "key");
	cursor->set_value(cursor, "value");
	error_check(session->prepare_transaction(
	    session, "prepare_timestamp=2a"));
	error_check(session->commit_transaction(
	    session, "commit_timestamp=2b"));
	/*! [transaction prepare] */
	}

	/*! [session isolation configuration] */
	/* Open a session configured for read-uncommitted isolation. */
	error_check(conn->open_session(
	    conn, NULL, "isolation=read-uncommitted", &session));
	/*! [session isolation configuration] */

	/*! [session isolation re-configuration] */
	/* Re-configure a session for snapshot isolation. */
	error_check(session->reconfigure(session, "isolation=snapshot"));
	/*! [session isolation re-configuration] */

	error_check(session->close(session, NULL));
	session = session_arg;

	{
	/*! [transaction pinned range] */
	/* Check the transaction ID range pinned by the session handle. */
	uint64_t range;

	error_check(session->transaction_pinned_range(session, &range));
	/*! [transaction pinned range] */
	}

	error_check(session->begin_transaction(session, NULL));

	{
	/*! [query timestamp] */
	char timestamp_buf[2 * sizeof(uint64_t) + 1];

	/*! [transaction timestamp] */
	error_check(
	    session->timestamp_transaction(session, "commit_timestamp=2a"));
	/*! [transaction timestamp] */

	error_check(session->commit_transaction(session, NULL));

	error_check(conn->query_timestamp(
	    conn, timestamp_buf, "get=all_committed"));
	/*! [query timestamp] */
	}

	/*! [set commit timestamp] */
	error_check(conn->set_timestamp(conn, "commit_timestamp=2a"));
	/*! [set commit timestamp] */

	/*! [set oldest timestamp] */
	error_check(conn->set_timestamp(conn, "oldest_timestamp=2a"));
	/*! [set oldest timestamp] */

	/*! [set stable timestamp] */
	error_check(conn->set_timestamp(conn, "stable_timestamp=2a"));
	/*! [set stable timestamp] */

	/*! [rollback to stable] */
	error_check(conn->rollback_to_stable(conn, NULL));
	/*! [rollback to stable] */
}
Esempio n. 14
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static void *
thread_get(void *arg)
{
	SHARED_OPTS *sharedopts;
	TEST_OPTS *opts;
	THREAD_ARGS *threadargs;
	WT_CURSOR *maincur, *postcur;
	WT_SESSION *session;
	double elapsed;
	time_t prevtime, curtime; /* 1 second resolution is okay */
	int bal, flag, key, key2, post, bal2, flag2, post2;
	char *extra;

	threadargs = (THREAD_ARGS *)arg;
	opts = threadargs->testopts;
	sharedopts = threadargs->sharedopts;
	(void)time(&prevtime);

	testutil_check(opts->conn->open_session(
	    opts->conn, NULL, NULL, &session));
	testutil_check(session->open_cursor(session, opts->uri, NULL, NULL,
	    &maincur));

	testutil_check(session->open_cursor(
	    session, sharedopts->posturi, NULL, NULL, &postcur));

	for (threadargs->njoins = 0; threadargs->done == 0;
	     threadargs->njoins++) {
		testutil_check(session->begin_transaction(session, NULL));
		postcur->set_key(postcur, 54321);
		testutil_check(postcur->search(postcur));
		while (postcur->next(postcur) == 0) {
			testutil_check(postcur->get_key(postcur, &post));
			testutil_check(postcur->get_value(postcur, &post2,
			    &bal, &extra, &flag, &key));
			testutil_assert(post == post2);
			if (post != 54321)
				break;

			maincur->set_key(maincur, key);
			testutil_check(maincur->search(maincur));
			testutil_check(maincur->get_value(maincur, &post2,
			    &bal2, &extra, &flag2, &key2));
			testutil_check(maincur->reset(maincur));
			testutil_assert(key == key2);
			testutil_assert(post == post2);
			testutil_assert(bal == bal2);
			testutil_assert(flag == flag2);

			testutil_assert((flag2 > 0 && bal2 < 0) ||
			    (flag2 == 0 && bal2 >= 0));
		}
		/*
		 * Reset the cursors, potentially allowing the insert
		 * threads to proceed.
		 */
		testutil_check(postcur->reset(postcur));
		if (threadargs->njoins % 100 == 0)
			fprintf(stderr, "G");
		testutil_check(session->rollback_transaction(session, NULL));

		(void)time(&curtime);
		if ((elapsed = difftime(curtime, prevtime)) > 5.0) {
			fprintf(stderr, "\n"
			    "GAP: %.0f secs after %d gets\n",
			    elapsed, threadargs->njoins);
			threadargs->nfail++;
		}
		prevtime = curtime;
	}
	testutil_check(postcur->close(postcur));
	testutil_check(maincur->close(maincur));
	testutil_check(session->close(session, NULL));
	return (NULL);
}
Esempio n. 15
0
void WiredTigerSizeStorer::syncCache(bool syncToDisk) {
    stdx::lock_guard<stdx::mutex> cursorLock(_cursorMutex);
    _checkMagic();

    Map myMap;
    {
        stdx::lock_guard<stdx::mutex> lk(_entriesMutex);
        for (Map::iterator it = _entries.begin(); it != _entries.end(); ++it) {
            std::string uriKey = it->first;
            Entry& entry = it->second;
            if (entry.rs) {
                if (entry.dataSize != entry.rs->dataSize(NULL)) {
                    entry.dataSize = entry.rs->dataSize(NULL);
                    entry.dirty = true;
                }
                if (entry.numRecords != entry.rs->numRecords(NULL)) {
                    entry.numRecords = entry.rs->numRecords(NULL);
                    entry.dirty = true;
                }
            }

            if (!entry.dirty)
                continue;
            myMap[uriKey] = entry;
        }
    }

    if (myMap.empty())
        return;  // Nothing to do.

    WT_SESSION* session = _session.getSession();
    invariantWTOK(session->begin_transaction(session, syncToDisk ? "sync=true" : ""));
    ScopeGuard rollbacker = MakeGuard(session->rollback_transaction, session, "");

    for (Map::iterator it = myMap.begin(); it != myMap.end(); ++it) {
        string uriKey = it->first;
        Entry& entry = it->second;

        BSONObj data;
        {
            BSONObjBuilder b;
            b.append("numRecords", entry.numRecords);
            b.append("dataSize", entry.dataSize);
            data = b.obj();
        }

        LOG(2) << "WiredTigerSizeStorer::storeInto " << uriKey << " -> " << redact(data);

        WiredTigerItem key(uriKey.c_str(), uriKey.size());
        WiredTigerItem value(data.objdata(), data.objsize());
        _cursor->set_key(_cursor, key.Get());
        _cursor->set_value(_cursor, value.Get());
        invariantWTOK(_cursor->insert(_cursor));
    }

    invariantWTOK(_cursor->reset(_cursor));

    rollbacker.Dismiss();
    invariantWTOK(session->commit_transaction(session, NULL));

    {
        stdx::lock_guard<stdx::mutex> lk(_entriesMutex);
        for (Map::iterator it = _entries.begin(); it != _entries.end(); ++it) {
            it->second.dirty = false;
        }
    }
}
Esempio n. 16
0
int
main(void)
{
	WT_CONNECTION *wt_conn;
	WT_CURSOR *cursor;
	WT_SESSION *session;
	int i, record_count, ret;
	char cmd_buf[256], k[16], v[16];

	snprintf(cmd_buf, sizeof(cmd_buf), "rm -rf %s %s && mkdir %s %s",
	    home1, home2, home1, home2);
	if ((ret = system(cmd_buf)) != 0) {
		fprintf(stderr, "%s: failed ret %d\n", cmd_buf, ret);
		return (ret);
	}
	if ((ret = wiredtiger_open(home1, NULL, CONN_CONFIG, &wt_conn)) != 0) {
		fprintf(stderr, "Error connecting to %s: %s\n",
		    home1, wiredtiger_strerror(ret));
		return (ret);
	}

	ret = wt_conn->open_session(wt_conn, NULL, NULL, &session);
	ret = session->create(session, uri, "key_format=S,value_format=S");

	ret = session->open_cursor(session, uri, NULL, NULL, &cursor);
	/*
	 * Perform some operations with individual auto-commit transactions.
	 */
	for (record_count = 0, i = 0; i < MAX_KEYS; i++, record_count++) {
		snprintf(k, sizeof(k), "key%d", i);
		snprintf(v, sizeof(v), "value%d", i);
		cursor->set_key(cursor, k);
		cursor->set_value(cursor, v);
		ret = cursor->insert(cursor);
	}
	ret = session->begin_transaction(session, NULL);
	/*
	 * Perform some operations within a single transaction.
	 */
	for (i = MAX_KEYS; i < MAX_KEYS+5; i++, record_count++) {
		snprintf(k, sizeof(k), "key%d", i);
		snprintf(v, sizeof(v), "value%d", i);
		cursor->set_key(cursor, k);
		cursor->set_value(cursor, v);
		ret = cursor->insert(cursor);
	}
	ret = session->commit_transaction(session, NULL);
	ret = cursor->close(cursor);

	/*! [log cursor printf] */
	ret = session->log_printf(session, "Wrote %d records", record_count);
	/*! [log cursor printf] */

	/*
	 * Close and reopen the connection so that the log ends up with
	 * a variety of records such as file sync and checkpoint.  We
	 * have archiving turned off.
	 */
	ret = wt_conn->close(wt_conn, NULL);
	if ((ret = wiredtiger_open(home1, NULL, CONN_CONFIG, &wt_conn)) != 0) {
		fprintf(stderr, "Error connecting to %s: %s\n",
		    home1, wiredtiger_strerror(ret));
		return (ret);
	}

	ret = wt_conn->open_session(wt_conn, NULL, NULL, &session);
	ret = simple_walk_log(session);
	ret = walk_log(session);
	ret = wt_conn->close(wt_conn, NULL);
	return (ret);
}
Esempio n. 17
0
/*
 * real_worker --
 *     A single worker thread that transactionally updates all tables with
 *     consistent values.
 */
static int
real_worker(void)
{
	WT_CURSOR **cursors;
	WT_RAND_STATE rnd;
	WT_SESSION *session;
	u_int i, keyno;
	int j, ret, t_ret;

	ret = t_ret = 0;

	__wt_random_init(&rnd);

	if ((cursors = calloc(
	    (size_t)(g.ntables), sizeof(WT_CURSOR *))) == NULL)
		return (log_print_err("malloc", ENOMEM, 1));

	if ((ret = g.conn->open_session(
	    g.conn, NULL, "isolation=snapshot", &session)) != 0) {
		(void)log_print_err("conn.open_session", ret, 1);
		goto err;
	}

	for (j = 0; j < g.ntables; j++)
		if ((ret = session->open_cursor(session,
		    g.cookies[j].uri, NULL, NULL, &cursors[j])) != 0) {
			(void)log_print_err("session.open_cursor", ret, 1);
			goto err;
		}

	for (i = 0; i < g.nops && g.running; ++i, __wt_yield()) {
		if ((ret = session->begin_transaction(session, NULL)) != 0) {
			(void)log_print_err(
			    "real_worker:begin_transaction", ret, 1);
			goto err;
		}
		keyno = __wt_random(&rnd) % g.nkeys + 1;
		for (j = 0; j < g.ntables; j++) {
			if ((ret = worker_op(cursors[j], keyno, i)) != 0)
				break;
		}
		if (ret == 0) {
			if ((ret = session->commit_transaction(
			    session, NULL)) != 0) {
				(void)log_print_err(
				    "real_worker:commit_transaction", ret, 1);
				goto err;
			}
		} else if (ret == WT_ROLLBACK) {
			if ((ret = session->rollback_transaction(
			    session, NULL)) != 0) {
				(void)log_print_err(
				    "real_worker:rollback_transaction", ret, 1);
				goto err;
			    }
		} else {
			(void)log_print_err("worker op failed", ret, 1);
			goto err;
		}
	}

err:	if ((t_ret = session->close(session, NULL)) != 0 && ret == 0) {
		ret = t_ret;
		(void)log_print_err("session.close", ret, 1);
	}
	free(cursors);

	return (ret);
}
Esempio n. 18
0
/*
 * thread_run --
 *	Runner function for the worker threads.
 */
static WT_THREAD_RET
thread_run(void *arg)
{
	FILE *fp;
	WT_CURSOR *cur_coll, *cur_local, *cur_oplog, *cur_stable;
	WT_ITEM data;
	WT_RAND_STATE rnd;
	WT_SESSION *session;
	WT_THREAD_DATA *td;
	uint64_t i, stable_ts;
	int ret;
	char cbuf[MAX_VAL], lbuf[MAX_VAL], obuf[MAX_VAL];
	char kname[64], tscfg[64];

	__wt_random_init(&rnd);
	memset(cbuf, 0, sizeof(cbuf));
	memset(lbuf, 0, sizeof(lbuf));
	memset(obuf, 0, sizeof(obuf));
	memset(kname, 0, sizeof(kname));

	td = (WT_THREAD_DATA *)arg;
	/*
	 * Set up the separate file for checking.
	 */
	testutil_check(__wt_snprintf(cbuf, sizeof(cbuf), RECORDS_FILE, td->id));
	(void)unlink(cbuf);
	testutil_checksys((fp = fopen(cbuf, "w")) == NULL);
	/*
	 * Set to line buffering.  But that is advisory only.  We've seen
	 * cases where the result files end up with partial lines.
	 */
	__wt_stream_set_line_buffer(fp);
	if ((ret = td->conn->open_session(td->conn, NULL, NULL, &session)) != 0)
		testutil_die(ret, "WT_CONNECTION:open_session");
	/*
	 * Open a cursor to each table.
	 */
	if ((ret = session->open_cursor(session,
	    uri_collection, NULL, NULL, &cur_coll)) != 0)
		testutil_die(ret, "WT_SESSION.open_cursor: %s", uri_collection);
	if ((ret = session->open_cursor(session,
	    uri_local, NULL, NULL, &cur_local)) != 0)
		testutil_die(ret, "WT_SESSION.open_cursor: %s", uri_local);
	if ((ret = session->open_cursor(session,
	    uri_oplog, NULL, NULL, &cur_oplog)) != 0)
		testutil_die(ret, "WT_SESSION.open_cursor: %s", uri_oplog);

	if ((ret = session->open_cursor(
	    session, stable_store, NULL, NULL, &cur_stable)) != 0)
		testutil_die(ret, "WT_SESSION.open_cursor: %s", stable_store);

	/*
	 * Write our portion of the key space until we're killed.
	 */
	printf("Thread %" PRIu32 " starts at %" PRIu64 "\n", td->id, td->start);
	for (i = td->start; ; ++i) {
		if (use_ts)
			stable_ts = global_ts++;
		else
			stable_ts = 0;
		testutil_check(__wt_snprintf(
		    kname, sizeof(kname), "%" PRIu64, i));

		testutil_check(session->begin_transaction(session, NULL));
		cur_coll->set_key(cur_coll, kname);
		cur_local->set_key(cur_local, kname);
		cur_oplog->set_key(cur_oplog, kname);
		/*
		 * Put an informative string into the value so that it
		 * can be viewed well in a binary dump.
		 */
		testutil_check(__wt_snprintf(cbuf, sizeof(cbuf),
		    "COLL: thread:%" PRIu64 " ts:%" PRIu64 " key: %" PRIu64,
		    td->id, stable_ts, i));
		testutil_check(__wt_snprintf(lbuf, sizeof(lbuf),
		    "LOCAL: thread:%" PRIu64 " ts:%" PRIu64 " key: %" PRIu64,
		    td->id, stable_ts, i));
		testutil_check(__wt_snprintf(obuf, sizeof(obuf),
		    "OPLOG: thread:%" PRIu64 " ts:%" PRIu64 " key: %" PRIu64,
		    td->id, stable_ts, i));
		data.size = __wt_random(&rnd) % MAX_VAL;
		data.data = cbuf;
		cur_coll->set_value(cur_coll, &data);
		if ((ret = cur_coll->insert(cur_coll)) != 0)
			testutil_die(ret, "WT_CURSOR.insert");
		data.size = __wt_random(&rnd) % MAX_VAL;
		data.data = obuf;
		cur_oplog->set_value(cur_oplog, &data);
		if ((ret = cur_oplog->insert(cur_oplog)) != 0)
			testutil_die(ret, "WT_CURSOR.insert");
		if (use_ts) {
			testutil_check(__wt_snprintf(tscfg, sizeof(tscfg),
			    "commit_timestamp=%" PRIx64, stable_ts));
			testutil_check(
			    session->commit_transaction(session, tscfg));
		} else
			testutil_check(
			    session->commit_transaction(session, NULL));
		/*
		 * Insert into the local table outside the timestamp txn.
		 */
		data.size = __wt_random(&rnd) % MAX_VAL;
		data.data = lbuf;
		cur_local->set_value(cur_local, &data);
		if ((ret = cur_local->insert(cur_local)) != 0)
			testutil_die(ret, "WT_CURSOR.insert");

		/*
		 * Every N records we will record our stable timestamp into the
		 * stable table.  That will define our threshold where we
		 * expect to find records after recovery.
		 */
		if (i % STABLE_PERIOD == 0) {
			if (use_ts) {
				/*
				 * Set both the oldest and stable timestamp
				 * so that we don't need to maintain read
				 * availability at older timestamps.
				 */
				testutil_check(__wt_snprintf(
				    tscfg, sizeof(tscfg),
				    "oldest_timestamp=%" PRIx64
				    ",stable_timestamp=%" PRIx64,
				    stable_ts, stable_ts));
				testutil_check(
				    td->conn->set_timestamp(td->conn, tscfg));
			}
			cur_stable->set_key(cur_stable, td->id);
			cur_stable->set_value(cur_stable, stable_ts);
			testutil_check(cur_stable->insert(cur_stable));
		}
		/*
		 * Save the timestamp and key separately for checking later.
		 */
		if (fprintf(fp,
		    "%" PRIu64 " %" PRIu64 "\n", stable_ts, i) < 0)
			testutil_die(EIO, "fprintf");
	}
	/* NOTREACHED */
}
Esempio n. 19
0
static void *
ops(void *arg)
{
	TINFO *tinfo;
	WT_CONNECTION *conn;
	WT_CURSOR *cursor, *cursor_insert;
	WT_SESSION *session;
	WT_ITEM key, value;
	uint64_t cnt, keyno, ckpt_op, session_op, thread_ops;
	uint32_t op;
	uint8_t *keybuf, *valbuf;
	u_int np;
	int dir, insert, intxn, notfound, ret;
	char *ckpt_config, config[64];

	tinfo = arg;

	conn = g.wts_conn;
	keybuf = valbuf = NULL;

	/* Set up the default key and value buffers. */
	key_gen_setup(&keybuf);
	val_gen_setup(&valbuf);

	/*
	 * Each thread does its share of the total operations, and make sure
	 * that it's not 0 (testing runs: threads might be larger than ops).
	 */
	thread_ops = 100 + g.c_ops / g.c_threads;

	/*
	 * Select the first operation where we'll create sessions and cursors,
	 * perform checkpoint operations.
	 */
	ckpt_op = MMRAND(1, thread_ops);
	session_op = 0;

	session = NULL;
	cursor = cursor_insert = NULL;
	for (intxn = 0, cnt = 0; cnt < thread_ops; ++cnt) {
		if (SINGLETHREADED && cnt % 100 == 0)
			track("ops", 0ULL, tinfo);

		/*
		 * We can't checkpoint or swap sessions/cursors while in a
		 * transaction, resolve any running transaction.  Otherwise,
		 * reset the cursor: we may block waiting for a lock and there
		 * is no reason to keep pages pinned.
		 */
		if (cnt == ckpt_op || cnt == session_op) {
			if (intxn) {
				if ((ret = session->commit_transaction(
				    session, NULL)) != 0)
					die(ret, "session.commit_transaction");
				++tinfo->commit;
				intxn = 0;
			}
			else if (cursor != NULL &&
			    (ret = cursor->reset(cursor)) != 0)
				die(ret, "cursor.reset");
		}

		/* Open up a new session and cursors. */
		if (cnt == session_op || session == NULL || cursor == NULL) {
			if (session != NULL &&
			    (ret = session->close(session, NULL)) != 0)
				die(ret, "session.close");

			if ((ret = conn->open_session(
			    conn, NULL, NULL, &session)) != 0)
				die(ret, "connection.open_session");

			/*
			 * Open two cursors: one configured for overwriting and
			 * one configured for append if we're dealing with a
			 * column-store.
			 *
			 * The reason is when testing with existing records, we
			 * don't track if a record was deleted or not, which
			 * means we must use cursor->insert with overwriting
			 * configured.  But, in column-store files where we're
			 * testing with new, appended records, we don't want to
			 * have to specify the record number, which requires an
			 * append configuration.
			 */
			if ((ret = session->open_cursor(session,
			    g.uri, NULL, "overwrite", &cursor)) != 0)
				die(ret, "session.open_cursor");
			if ((g.type == FIX || g.type == VAR) &&
			    (ret = session->open_cursor(session,
			    g.uri, NULL, "append", &cursor_insert)) != 0)
				die(ret, "session.open_cursor");

			/* Pick the next session/cursor close/open. */
			session_op += SINGLETHREADED ?
			    MMRAND(1, thread_ops) : 100 * MMRAND(1, 50);
		}

		/* Checkpoint the database. */
		if (cnt == ckpt_op) {
			/*
			 * LSM and data-sources don't support named checkpoints,
			 * else 25% of the time we name the checkpoint.
			 */
			if (DATASOURCE("lsm") || DATASOURCE("kvsbdb") ||
			    DATASOURCE("memrata") || MMRAND(1, 4) == 1)
				ckpt_config = NULL;
			else {
				(void)snprintf(config, sizeof(config),
				    "name=thread-%d", tinfo->id);
				ckpt_config = config;
			}

			/* Named checkpoints lock out hot backups */
			if (ckpt_config != NULL &&
			    (ret = pthread_rwlock_wrlock(&g.backup_lock)) != 0)
				die(ret,
				    "pthread_rwlock_wrlock: hot-backup lock");

			if ((ret =
			    session->checkpoint(session, ckpt_config)) != 0)
				die(ret, "session.checkpoint%s%s",
				    ckpt_config == NULL ? "" : ": ",
				    ckpt_config == NULL ? "" : ckpt_config);

			if (ckpt_config != NULL &&
			    (ret = pthread_rwlock_unlock(&g.backup_lock)) != 0)
				die(ret,
				    "pthread_rwlock_wrlock: hot-backup lock");

			/*
			 * Pick the next checkpoint operation, try for roughly
			 * five checkpoint operations per thread run.
			 */
			ckpt_op += MMRAND(1, thread_ops) / 5;
		}

		/*
		 * If we're not single-threaded and we're not in a transaction,
		 * start a transaction 80% of the time.
		 */
		if (!SINGLETHREADED && !intxn && MMRAND(1, 10) >= 8) {
			if ((ret =
			    session->begin_transaction(session, NULL)) != 0)
				die(ret, "session.begin_transaction");
			intxn = 1;
		}

		insert = notfound = 0;

		keyno = MMRAND(1, g.rows);
		key.data = keybuf;
		value.data = valbuf;

		/*
		 * Perform some number of operations: the percentage of deletes,
		 * inserts and writes are specified, reads are the rest.  The
		 * percentages don't have to add up to 100, a high percentage
		 * of deletes will mean fewer inserts and writes.  Modifications
		 * are always followed by a read to confirm it worked.
		 */
		op = (uint32_t)(rng() % 100);
		if (op < g.c_delete_pct) {
			++tinfo->remove;
			switch (g.type) {
			case ROW:
				/*
				 * If deleting a non-existent record, the cursor
				 * won't be positioned, and so can't do a next.
				 */
				if (row_remove(cursor, &key, keyno, &notfound))
					goto deadlock;
				break;
			case FIX:
			case VAR:
				if (col_remove(cursor, &key, keyno, &notfound))
					goto deadlock;
				break;
			}
		} else if (op < g.c_delete_pct + g.c_insert_pct) {
			++tinfo->insert;
			switch (g.type) {
			case ROW:
				if (row_insert(cursor, &key, &value, keyno))
					goto deadlock;
				insert = 1;
				break;
			case FIX:
			case VAR:
				/*
				 * We can only append so many new records, if
				 * we've reached that limit, update a record
				 * instead of doing an insert.
				 */
				if (g.append_cnt >= g.append_max)
					goto skip_insert;

				/*
				 * Reset the standard cursor so it doesn't keep
				 * pages pinned.
				 */
				if ((ret = cursor->reset(cursor)) != 0)
					die(ret, "cursor.reset");

				/* Insert, then reset the insert cursor. */
				if (col_insert(
				    cursor_insert, &key, &value, &keyno))
					goto deadlock;
				if ((ret =
				    cursor_insert->reset(cursor_insert)) != 0)
					die(ret, "cursor.reset");

				insert = 1;
				break;
			}
		} else if (
		    op < g.c_delete_pct + g.c_insert_pct + g.c_write_pct) {
			++tinfo->update;
			switch (g.type) {
			case ROW:
				if (row_update(cursor, &key, &value, keyno))
					goto deadlock;
				break;
			case FIX:
			case VAR:
skip_insert:			if (col_update(cursor, &key, &value, keyno))
					goto deadlock;
				break;
			}
		} else {
			++tinfo->search;
			if (read_row(cursor, &key, keyno))
				goto deadlock;
			continue;
		}

		/*
		 * The cursor is positioned if we did any operation other than
		 * insert, do a small number of next/prev cursor operations in
		 * a random direction.
		 */
		if (!insert) {
			dir = (int)MMRAND(0, 1);
			for (np = 0; np < MMRAND(1, 8); ++np) {
				if (notfound)
					break;
				if (nextprev(cursor, dir, &notfound))
					goto deadlock;
			}
		}

		/* Read the value we modified to confirm the operation. */
		++tinfo->search;
		if (read_row(cursor, &key, keyno))
			goto deadlock;

		/*
		 * If we're in the transaction, commit 40% of the time and
		 * rollback 10% of the time.
		 */
		if (intxn)
			switch (MMRAND(1, 10)) {
			case 1: case 2: case 3: case 4:		/* 40% */
				if ((ret = session->commit_transaction(
				    session, NULL)) != 0)
					die(ret, "session.commit_transaction");
				++tinfo->commit;
				intxn = 0;
				break;
			case 5:					/* 10% */
				if (0) {
deadlock:				++tinfo->deadlock;
				}
				if ((ret = session->rollback_transaction(
				    session, NULL)) != 0)
					die(ret, "session.commit_transaction");
				++tinfo->rollback;
				intxn = 0;
				break;
			default:
				break;
			}
	}

	if (session != NULL && (ret = session->close(session, NULL)) != 0)
		die(ret, "session.close");

	free(keybuf);
	free(valbuf);

	tinfo->state = TINFO_COMPLETE;
	return (NULL);
}
Esempio n. 20
0
static void *
ops(void *arg)
{
	TINFO *tinfo;
	WT_CONNECTION *conn;
	WT_CURSOR *cursor, *cursor_insert;
	WT_SESSION *session;
	WT_ITEM key, value;
	uint64_t keyno, ckpt_op, session_op;
	uint32_t op;
	uint8_t *keybuf, *valbuf;
	u_int np;
	int ckpt_available, dir, insert, intxn, notfound, readonly, ret;
	char *ckpt_config, ckpt_name[64];

	tinfo = arg;

	/* Initialize the per-thread random number generator. */
	__wt_random_init(&tinfo->rnd);

	conn = g.wts_conn;
	keybuf = valbuf = NULL;
	readonly = 0;			/* -Wconditional-uninitialized */

	/* Set up the default key and value buffers. */
	key_gen_setup(&keybuf);
	val_gen_setup(&tinfo->rnd, &valbuf);

	/* Set the first operation where we'll create sessions and cursors. */
	session_op = 0;
	session = NULL;
	cursor = cursor_insert = NULL;

	/* Set the first operation where we'll perform checkpoint operations. */
	ckpt_op = g.c_checkpoints ? mmrand(&tinfo->rnd, 100, 10000) : 0;
	ckpt_available = 0;

	for (intxn = 0; !tinfo->quit; ++tinfo->ops) {
		/*
		 * We can't checkpoint or swap sessions/cursors while in a
		 * transaction, resolve any running transaction.
		 */
		if (intxn &&
		    (tinfo->ops == ckpt_op || tinfo->ops == session_op)) {
			if ((ret = session->commit_transaction(
			    session, NULL)) != 0)
				die(ret, "session.commit_transaction");
			++tinfo->commit;
			intxn = 0;
		}

		/* Open up a new session and cursors. */
		if (tinfo->ops == session_op ||
		    session == NULL || cursor == NULL) {
			if (session != NULL &&
			    (ret = session->close(session, NULL)) != 0)
				die(ret, "session.close");

			if ((ret = conn->open_session(conn, NULL,
			    ops_session_config(&tinfo->rnd), &session)) != 0)
				die(ret, "connection.open_session");

			/*
			 * 10% of the time, perform some read-only operations
			 * from a checkpoint.
			 *
			 * Skip that if we single-threaded and doing checks
			 * against a Berkeley DB database, because that won't
			 * work because the Berkeley DB database records won't
			 * match the checkpoint.  Also skip if we are using
			 * LSM, because it doesn't support reads from
			 * checkpoints.
			 */
			if (!SINGLETHREADED && !DATASOURCE("lsm") &&
			    ckpt_available && mmrand(&tinfo->rnd, 1, 10) == 1) {
				if ((ret = session->open_cursor(session,
				    g.uri, NULL, ckpt_name, &cursor)) != 0)
					die(ret, "session.open_cursor");

				/* Pick the next session/cursor close/open. */
				session_op += 250;

				/* Checkpoints are read-only. */
				readonly = 1;
			} else {
				/*
				 * Open two cursors: one for overwriting and one
				 * for append (if it's a column-store).
				 *
				 * The reason is when testing with existing
				 * records, we don't track if a record was
				 * deleted or not, which means we must use
				 * cursor->insert with overwriting configured.
				 * But, in column-store files where we're
				 * testing with new, appended records, we don't
				 * want to have to specify the record number,
				 * which requires an append configuration.
				 */
				if ((ret = session->open_cursor(session, g.uri,
				    NULL, "overwrite", &cursor)) != 0)
					die(ret, "session.open_cursor");
				if ((g.type == FIX || g.type == VAR) &&
				    (ret = session->open_cursor(session, g.uri,
				    NULL, "append", &cursor_insert)) != 0)
					die(ret, "session.open_cursor");

				/* Pick the next session/cursor close/open. */
				session_op += mmrand(&tinfo->rnd, 100, 5000);

				/* Updates supported. */
				readonly = 0;
			}
		}

		/* Checkpoint the database. */
		if (tinfo->ops == ckpt_op && g.c_checkpoints) {
			/*
			 * LSM and data-sources don't support named checkpoints,
			 * and we can't drop a named checkpoint while there's a
			 * cursor open on it, otherwise 20% of the time name the
			 * checkpoint.
			 */
			if (DATASOURCE("helium") || DATASOURCE("kvsbdb") ||
			    DATASOURCE("lsm") ||
			    readonly || mmrand(&tinfo->rnd, 1, 5) == 1)
				ckpt_config = NULL;
			else {
				(void)snprintf(ckpt_name, sizeof(ckpt_name),
				    "name=thread-%d", tinfo->id);
				ckpt_config = ckpt_name;
			}

			/* Named checkpoints lock out backups */
			if (ckpt_config != NULL &&
			    (ret = pthread_rwlock_wrlock(&g.backup_lock)) != 0)
				die(ret,
				    "pthread_rwlock_wrlock: backup lock");

			if ((ret =
			    session->checkpoint(session, ckpt_config)) != 0)
				die(ret, "session.checkpoint%s%s",
				    ckpt_config == NULL ? "" : ": ",
				    ckpt_config == NULL ? "" : ckpt_config);

			if (ckpt_config != NULL &&
			    (ret = pthread_rwlock_unlock(&g.backup_lock)) != 0)
				die(ret,
				    "pthread_rwlock_wrlock: backup lock");

			/* Rephrase the checkpoint name for cursor open. */
			if (ckpt_config == NULL)
				strcpy(ckpt_name,
				    "checkpoint=WiredTigerCheckpoint");
			else
				(void)snprintf(ckpt_name, sizeof(ckpt_name),
				    "checkpoint=thread-%d", tinfo->id);
			ckpt_available = 1;

			/* Pick the next checkpoint operation. */
			ckpt_op += mmrand(&tinfo->rnd, 5000, 20000);
		}

		/*
		 * If we're not single-threaded and we're not in a transaction,
		 * start a transaction 20% of the time.
		 */
		if (!SINGLETHREADED &&
		    !intxn && mmrand(&tinfo->rnd, 1, 10) >= 8) {
			if ((ret =
			    session->begin_transaction(session, NULL)) != 0)
				die(ret, "session.begin_transaction");
			intxn = 1;
		}

		insert = notfound = 0;

		keyno = mmrand(&tinfo->rnd, 1, (u_int)g.rows);
		key.data = keybuf;
		value.data = valbuf;

		/*
		 * Perform some number of operations: the percentage of deletes,
		 * inserts and writes are specified, reads are the rest.  The
		 * percentages don't have to add up to 100, a high percentage
		 * of deletes will mean fewer inserts and writes.  Modifications
		 * are always followed by a read to confirm it worked.
		 */
		op = readonly ? UINT32_MAX : mmrand(&tinfo->rnd, 1, 100);
		if (op < g.c_delete_pct) {
			++tinfo->remove;
			switch (g.type) {
			case ROW:
				/*
				 * If deleting a non-existent record, the cursor
				 * won't be positioned, and so can't do a next.
				 */
				if (row_remove(cursor, &key, keyno, &notfound))
					goto deadlock;
				break;
			case FIX:
			case VAR:
				if (col_remove(cursor, &key, keyno, &notfound))
					goto deadlock;
				break;
			}
		} else if (op < g.c_delete_pct + g.c_insert_pct) {
			++tinfo->insert;
			switch (g.type) {
			case ROW:
				if (row_insert(
				    tinfo, cursor, &key, &value, keyno))
					goto deadlock;
				insert = 1;
				break;
			case FIX:
			case VAR:
				/*
				 * We can only append so many new records, if
				 * we've reached that limit, update a record
				 * instead of doing an insert.
				 */
				if (g.append_cnt >= g.append_max)
					goto skip_insert;

				/* Insert, then reset the insert cursor. */
				if (col_insert(tinfo,
				    cursor_insert, &key, &value, &keyno))
					goto deadlock;
				if ((ret =
				    cursor_insert->reset(cursor_insert)) != 0)
					die(ret, "cursor.reset");

				insert = 1;
				break;
			}
		} else if (
		    op < g.c_delete_pct + g.c_insert_pct + g.c_write_pct) {
			++tinfo->update;
			switch (g.type) {
			case ROW:
				if (row_update(
				    tinfo, cursor, &key, &value, keyno))
					goto deadlock;
				break;
			case FIX:
			case VAR:
skip_insert:			if (col_update(tinfo,
				    cursor, &key, &value, keyno))
					goto deadlock;
				break;
			}
		} else {
			++tinfo->search;
			if (read_row(cursor, &key, keyno))
				if (intxn)
					goto deadlock;
			continue;
		}

		/*
		 * The cursor is positioned if we did any operation other than
		 * insert, do a small number of next/prev cursor operations in
		 * a random direction.
		 */
		if (!insert) {
			dir = (int)mmrand(&tinfo->rnd, 0, 1);
			for (np = 0; np < mmrand(&tinfo->rnd, 1, 8); ++np) {
				if (notfound)
					break;
				if (nextprev(cursor, dir, &notfound))
					goto deadlock;
			}
		}

		/* Read to confirm the operation. */
		++tinfo->search;
		if (read_row(cursor, &key, keyno))
			goto deadlock;

		/* Reset the cursor: there is no reason to keep pages pinned. */
		if ((ret = cursor->reset(cursor)) != 0)
			die(ret, "cursor.reset");

		/*
		 * If we're in the transaction, commit 40% of the time and
		 * rollback 10% of the time.
		 */
		if (intxn)
			switch (mmrand(&tinfo->rnd, 1, 10)) {
			case 1: case 2: case 3: case 4:		/* 40% */
				if ((ret = session->commit_transaction(
				    session, NULL)) != 0)
					die(ret, "session.commit_transaction");
				++tinfo->commit;
				intxn = 0;
				break;
			case 5:					/* 10% */
				if (0) {
deadlock:				++tinfo->deadlock;
				}
				if ((ret = session->rollback_transaction(
				    session, NULL)) != 0)
					die(ret,
					    "session.rollback_transaction");
				++tinfo->rollback;
				intxn = 0;
				break;
			default:
				break;
			}
	}

	if (session != NULL && (ret = session->close(session, NULL)) != 0)
		die(ret, "session.close");

	free(keybuf);
	free(valbuf);

	tinfo->state = TINFO_COMPLETE;
	return (NULL);
}
Esempio n. 21
0
static void *
thread_insert(void *arg)
{
	TEST_OPTS *opts;
	THREAD_ARGS *threadargs;
	WT_CURSOR *maincur;
	WT_RAND_STATE rnd;
	WT_SESSION *session;
	double elapsed;
	time_t prevtime, curtime; /* 1 second resolution is okay */
	int bal, i, flag, key, post;
	const char *extra = S1024;

	threadargs = (THREAD_ARGS *)arg;
	opts = threadargs->testopts;
	testutil_check(__wt_random_init_seed(NULL, &rnd));
	(void)time(&prevtime);

	testutil_check(opts->conn->open_session(
	    opts->conn, NULL, NULL, &session));

	testutil_check(session->open_cursor(session, opts->uri, NULL, NULL,
	    &maincur));

	for (i = 0; i < N_INSERT; i++) {
		/*
		 * Insert threads may stomp on each other's records;
		 * that's okay.
		 */
		key = (int)(__wt_random(&rnd) % N_RECORDS);
		testutil_check(session->begin_transaction(session, NULL));
		maincur->set_key(maincur, key);
		if (__wt_random(&rnd) % 2 == 0)
			post = 54321;
		else
			post = i % 100000;
		if (__wt_random(&rnd) % 2 == 0) {
			bal = -100;
			flag = 1;
		} else {
			bal = 100 * (i + 1);
			flag = 0;
		}
		maincur->set_value(maincur, post, bal, extra, flag, key);
		testutil_check(maincur->insert(maincur));
		testutil_check(maincur->reset(maincur));
		testutil_check(session->commit_transaction(session, NULL));
		if (i % 1000 == 0 && i != 0) {
			if (i % 10000 == 0)
				fprintf(stderr, "*");
			else
				fprintf(stderr, ".");
			(void)time(&curtime);
			if ((elapsed = difftime(curtime, prevtime)) > 5.0) {
				fprintf(stderr, "\n"
				    "GAP: %.0f secs after %d inserts\n",
				    elapsed, i);
				threadargs->nfail++;
			}
			prevtime = curtime;
		}
	}
	testutil_check(maincur->close(maincur));
	testutil_check(session->close(session, NULL));
	return (NULL);
}