1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2012 New Dream Network
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
21 #include "os/ObjectStore.h"
22 #include "common/ceph_argparse.h"
23 #include "global/global_init.h"
24 #include "common/debug.h"
25 #include <boost/scoped_ptr.hpp>
26 #include <boost/lexical_cast.hpp>
28 #include "DeterministicOpSequence.h"
29 #include "common/config.h"
30 #include "include/assert.h"
32 #define dout_context g_ceph_context
33 #define dout_subsys ceph_subsys_filestore
35 #define dout_prefix *_dout << "deterministic_seq "
37 DeterministicOpSequence::DeterministicOpSequence(ObjectStore *store,
39 : TestObjectStoreState(store),
43 txn_object = hobject_t(sobject_t("txn", CEPH_NOSNAP));
46 m_status.open(status.c_str());
49 DeterministicOpSequence::~DeterministicOpSequence()
51 // TODO Auto-generated destructor stub
54 bool DeterministicOpSequence::run_one_op(int op, rngen_t& gen)
67 case DSOP_CLONE_RANGE:
68 ok = do_clone_range(gen);
74 ok = do_coll_move(gen);
77 ok = do_set_attrs(gen);
79 case DSOP_COLL_CREATE:
80 ok = do_coll_create(gen);
84 assert(0 == "bad op");
89 void DeterministicOpSequence::generate(int seed, int num_txs)
91 std::ostringstream ss;
92 ss << "generate run " << num_txs << " --seed " << seed;
94 if (m_status.is_open()) {
95 m_status << ss.str() << std::endl;
99 dout(0) << ss.str() << dendl;
102 boost::uniform_int<> op_rng(DSOP_FIRST, DSOP_LAST);
104 for (txn = 1; txn <= num_txs; ) {
105 int op = op_rng(gen);
106 _print_status(txn, op);
107 dout(0) << "generate seq " << txn << " op " << op << dendl;
108 if (run_one_op(op, gen))
113 void DeterministicOpSequence::_print_status(int seq, int op)
115 if (!m_status.is_open())
117 m_status << seq << " " << op << std::endl;
121 int DeterministicOpSequence::_gen_coll_id(rngen_t& gen)
123 boost::uniform_int<> coll_rng(0, m_collections_ids.size()-1);
124 return coll_rng(gen);
127 int DeterministicOpSequence::_gen_obj_id(rngen_t& gen)
129 boost::uniform_int<> obj_rng(0, m_num_objects - 1);
133 void DeterministicOpSequence::note_txn(ObjectStore::Transaction *t)
137 t->truncate(txn_coll, ghobject_t(txn_object), 0);
138 t->write(txn_coll, ghobject_t(txn_object), 0, bl.length(), bl);
139 dout(10) << __func__ << " " << txn << dendl;
142 bool DeterministicOpSequence::do_touch(rngen_t& gen)
144 int coll_id = _gen_coll_id(gen);
145 int obj_id = _gen_obj_id(gen);
147 coll_entry_t *entry = get_coll_at(coll_id);
148 ceph_assert(entry != NULL);
150 // Don't care about other collections if already exists
151 if (!entry->check_for_obj(obj_id)) {
152 bool other_found = false;
153 map<int, coll_entry_t*>::iterator it = m_collections.begin();
154 for (; it != m_collections.end(); ++it) {
155 if (it->second->check_for_obj(obj_id)) {
156 ceph_assert(it->first != coll_id);
161 dout(0) << "do_touch new object in collection and exists in another" << dendl;
165 hobject_t *obj = entry->touch_obj(obj_id);
167 dout(0) << "do_touch " << entry->m_coll.to_str() << "/" << obj->oid.name << dendl;
169 _do_touch(entry->m_coll, *obj);
173 bool DeterministicOpSequence::do_remove(rngen_t& gen)
175 int coll_id = _gen_coll_id(gen);
177 coll_entry_t *entry = get_coll_at(coll_id);
178 ceph_assert(entry != NULL);
180 if (entry->m_objects.size() == 0) {
181 dout(0) << "do_remove no objects in collection" << dendl;
184 int obj_id = entry->get_random_obj_id(gen);
185 hobject_t *obj = entry->touch_obj(obj_id);
188 dout(0) << "do_remove " << entry->m_coll.to_str() << "/" << obj->oid.name << dendl;
190 _do_remove(entry->m_coll, *obj);
191 hobject_t *rmobj = entry->remove_obj(obj_id);
197 static void _gen_random(rngen_t& gen,
198 size_t size, bufferlist& bl) {
200 static const char alphanum[] = "0123456789"
201 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
202 "abcdefghijklmnopqrstuvwxyz";
204 boost::uniform_int<> char_rng(0, sizeof(alphanum));
206 for (unsigned int i = 0; i < size - 1; i++) {
207 bp[i] = alphanum[char_rng(gen)];
213 static void gen_attrs(rngen_t &gen,
214 map<string, bufferlist> *out) {
215 boost::uniform_int<> num_rng(10, 30);
216 boost::uniform_int<> key_size_rng(5, 10);
217 boost::uniform_int<> val_size_rng(100, 1000);
218 size_t num_attrs = static_cast<size_t>(num_rng(gen));
219 for (size_t i = 0; i < num_attrs; ++i) {
220 size_t key_size = static_cast<size_t>(num_rng(gen));
221 size_t val_size = static_cast<size_t>(num_rng(gen));
223 _gen_random(gen, key_size, keybl);
224 string key(keybl.c_str(), keybl.length());
225 _gen_random(gen, val_size, (*out)[key]);
229 bool DeterministicOpSequence::do_set_attrs(rngen_t& gen)
231 int coll_id = _gen_coll_id(gen);
233 coll_entry_t *entry = get_coll_at(coll_id);
234 ceph_assert(entry != NULL);
236 if (entry->m_objects.size() == 0) {
237 dout(0) << "do_set_attrs no objects in collection" << dendl;
240 int obj_id = entry->get_random_obj_id(gen);
241 hobject_t *obj = entry->touch_obj(obj_id);
244 map<string, bufferlist> out;
245 gen_attrs(gen, &out);
247 dout(0) << "do_set_attrs " << out.size() << " entries" << dendl;
248 _do_set_attrs(entry->m_coll, *obj, out);
252 bool DeterministicOpSequence::do_write(rngen_t& gen)
254 int coll_id = _gen_coll_id(gen);
256 coll_entry_t *entry = get_coll_at(coll_id);
257 ceph_assert(entry != NULL);
259 if (entry->m_objects.size() == 0) {
260 dout(0) << "do_write no objects in collection" << dendl;
263 int obj_id = entry->get_random_obj_id(gen);
264 hobject_t *obj = entry->touch_obj(obj_id);
267 boost::uniform_int<> size_rng(100, (2 << 19));
268 size_t size = (size_t) size_rng(gen);
270 _gen_random(gen, size, bl);
272 dout(0) << "do_write " << entry->m_coll.to_str() << "/" << obj->oid.name
273 << " 0~" << size << dendl;
275 _do_write(entry->m_coll, *obj, 0, bl.length(), bl);
279 bool DeterministicOpSequence::_prepare_clone(rngen_t& gen,
280 coll_t& coll_ret, hobject_t& orig_obj_ret, hobject_t& new_obj_ret)
282 int coll_id = _gen_coll_id(gen);
284 coll_entry_t *entry = get_coll_at(coll_id);
285 ceph_assert(entry != NULL);
287 if (entry->m_objects.size() >= 2) {
288 dout(0) << "_prepare_clone coll " << entry->m_coll.to_str()
289 << " doesn't have 2 or more objects" << dendl;
293 int orig_obj_id = entry->get_random_obj_id(gen);
294 hobject_t *orig_obj = entry->touch_obj(orig_obj_id);
295 ceph_assert(orig_obj);
299 id = entry->get_random_obj_id(gen);
300 } while (id == orig_obj_id);
301 hobject_t *new_obj = entry->touch_obj(id);
302 ceph_assert(new_obj);
304 coll_ret = entry->m_coll;
305 orig_obj_ret = *orig_obj;
306 new_obj_ret = *new_obj;
311 bool DeterministicOpSequence::do_clone(rngen_t& gen)
314 hobject_t orig_obj, new_obj;
315 if (!_prepare_clone(gen, coll, orig_obj, new_obj)) {
319 dout(0) << "do_clone " << coll.to_str() << "/" << orig_obj.oid.name
320 << " => " << coll.to_str() << "/" << new_obj.oid.name << dendl;
322 _do_clone(coll, orig_obj, new_obj);
326 bool DeterministicOpSequence::do_clone_range(rngen_t& gen)
329 hobject_t orig_obj, new_obj;
330 if (!_prepare_clone(gen, coll, orig_obj, new_obj)) {
334 /* Whenever we have to make a clone_range() operation, just write to the
335 * object first, so we know we have something to clone in the said range.
336 * This may not be the best solution ever, but currently we're not keeping
337 * track of the written-to objects, and until we know for sure we really
338 * need to, let's just focus on the task at hand.
341 boost::uniform_int<> write_size_rng(100, (2 << 19));
342 size_t size = (size_t) write_size_rng(gen);
344 _gen_random(gen, size, bl);
346 boost::uniform_int<> clone_len(1, bl.length());
347 size = (size_t) clone_len(gen);
349 dout(0) << "do_clone_range " << coll.to_str() << "/" << orig_obj.oid.name
350 << " (0~" << size << ")"
351 << " => " << coll.to_str() << "/" << new_obj.oid.name
353 _do_write_and_clone_range(coll, orig_obj, new_obj, 0, size, 0, bl);
357 bool DeterministicOpSequence::_prepare_colls(rngen_t& gen,
358 coll_entry_t* &orig_coll, coll_entry_t* &new_coll)
360 ceph_assert(m_collections_ids.size() > 1);
361 int orig_coll_id = _gen_coll_id(gen);
364 new_coll_id = _gen_coll_id(gen);
365 } while (new_coll_id == orig_coll_id);
367 dout(0) << "_prepare_colls from coll id " << orig_coll_id
368 << " to coll id " << new_coll_id << dendl;
370 orig_coll = get_coll_at(orig_coll_id);
371 ceph_assert(orig_coll != NULL);
372 new_coll = get_coll_at(new_coll_id);
373 ceph_assert(new_coll != NULL);
375 if (!orig_coll->m_objects.size()) {
376 dout(0) << "_prepare_colls coll " << orig_coll->m_coll.to_str()
377 << " has no objects to use" << dendl;
385 bool DeterministicOpSequence::do_coll_move(rngen_t& gen)
387 coll_entry_t *orig_coll = NULL, *new_coll = NULL;
388 if (!_prepare_colls(gen, orig_coll, new_coll))
391 ceph_assert(orig_coll && new_coll);
393 boost::uniform_int<> obj_rng(0, orig_coll->m_objects.size()-1);
394 int obj_pos = obj_rng(gen);
396 hobject_t *obj = orig_coll->get_obj_at(obj_pos, &obj_key);
398 dout(0) << "do_coll_move coll " << orig_coll->m_coll.to_str()
399 << " has no object as pos #" << obj_pos << " (key " << obj_key << ")"
403 if (new_coll->check_for_obj(obj_key)) {
404 dout(0) << "do_coll_move coll " << orig_coll->m_coll.to_str()
405 << " already has object as pos #" << obj_pos << " (key " << obj_key << ")"
409 dout(0) << "do_coll_move " << orig_coll->m_coll.to_str() << "/" << obj->oid.name
410 << " => " << new_coll->m_coll.to_str() << "/" << obj->oid.name << dendl;
411 new_coll->touch_obj(obj_key);
413 orig_coll->remove_obj(obj_key);
415 _do_coll_move(orig_coll->m_coll, new_coll->m_coll, *obj);
420 bool DeterministicOpSequence::do_coll_create(rngen_t& gen)
422 boost::uniform_int<> pg_num_range(0, 512);
423 int pg_num = pg_num_range(gen);
425 // Assume there is 7 OSDs in total, the PGs are evenly distributed across those OSDs
426 int pgs = pg_num / 7;
428 boost::uniform_int<> num_objs_range(1, 1024);
429 int num_objs = num_objs_range(gen);
431 int pool_id = get_next_pool_id();
432 std::set<int> pg_created;
433 for (int i = 0; i < pgs; i++) {
434 boost::uniform_int<> pg_range(0, pg_num - 1);
435 int pg_id = pg_range(gen);
436 if (pg_created.count(pg_id) > 0)
438 _do_coll_create(coll_t(spg_t(pg_t(pg_id,pool_id),shard_id_t::NO_SHARD)),
439 (uint32_t) pg_num, (uint64_t) num_objs);
440 pg_created.insert(pg_id);
445 void DeterministicOpSequence::_do_coll_create(coll_t cid, uint32_t pg_num, uint64_t num_objs)
447 ObjectStore::Transaction t;
449 t.create_collection(cid, 32);
451 ::encode(pg_num, hint);
452 ::encode(num_objs, hint);
453 t.collection_hint(cid, ObjectStore::Transaction::COLL_HINT_EXPECTED_NUM_OBJECTS, hint);
454 dout(0) << "Give collection: " << cid << " a hint, pg_num is: " << pg_num << ", num_objs is: "
455 << num_objs << dendl;
457 m_store->apply_transaction(&m_osr, std::move(t));
460 void DeterministicOpSequence::_do_touch(coll_t coll, hobject_t& obj)
462 ObjectStore::Transaction t;
464 t.touch(coll, ghobject_t(obj));
465 m_store->apply_transaction(&m_osr, std::move(t));
468 void DeterministicOpSequence::_do_remove(coll_t coll, hobject_t& obj)
470 ObjectStore::Transaction t;
472 t.remove(coll, ghobject_t(obj));
473 m_store->apply_transaction(&m_osr, std::move(t));
476 void DeterministicOpSequence::_do_set_attrs(coll_t coll,
478 const map<string, bufferlist> &attrs)
480 ObjectStore::Transaction t;
482 t.omap_setkeys(coll, ghobject_t(obj), attrs);
483 m_store->apply_transaction(&m_osr, std::move(t));
486 void DeterministicOpSequence::_do_write(coll_t coll, hobject_t& obj,
487 uint64_t off, uint64_t len, const bufferlist& data)
489 ObjectStore::Transaction t;
491 t.write(coll, ghobject_t(obj), off, len, data);
492 m_store->apply_transaction(&m_osr, std::move(t));
495 void DeterministicOpSequence::_do_clone(coll_t coll, hobject_t& orig_obj,
498 ObjectStore::Transaction t;
500 t.clone(coll, ghobject_t(orig_obj), ghobject_t(new_obj));
501 m_store->apply_transaction(&m_osr, std::move(t));
504 void DeterministicOpSequence::_do_clone_range(coll_t coll,
505 hobject_t& orig_obj, hobject_t& new_obj, uint64_t srcoff,
506 uint64_t srclen, uint64_t dstoff)
508 ObjectStore::Transaction t;
510 t.clone_range(coll, ghobject_t(orig_obj), ghobject_t(new_obj),
511 srcoff, srclen, dstoff);
512 m_store->apply_transaction(&m_osr, std::move(t));
515 void DeterministicOpSequence::_do_write_and_clone_range(coll_t coll,
523 ObjectStore::Transaction t;
525 t.write(coll, ghobject_t(orig_obj), srcoff, bl.length(), bl);
526 t.clone_range(coll, ghobject_t(orig_obj), ghobject_t(new_obj),
527 srcoff, srclen, dstoff);
528 m_store->apply_transaction(&m_osr, std::move(t));
531 void DeterministicOpSequence::_do_coll_move(coll_t orig_coll, coll_t new_coll,
534 ObjectStore::Transaction t;
536 t.remove(new_coll, ghobject_t(obj));
537 t.collection_move_rename(orig_coll, ghobject_t(obj), new_coll, ghobject_t(obj));
538 m_store->apply_transaction(&m_osr, std::move(t));