--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+* Ceph - scalable distributed file system
+*
+* Copyright (C) 2012 New Dream Network
+*
+* This is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License version 2.1, as published by the Free Software
+* Foundation. See file COPYING.
+*/
+#include <stdio.h>
+#include <string.h>
+#include <iostream>
+#include <fstream>
+#include <time.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <sstream>
+#include "os/ObjectStore.h"
+#include "common/ceph_argparse.h"
+#include "global/global_init.h"
+#include "common/debug.h"
+#include <boost/scoped_ptr.hpp>
+#include <boost/lexical_cast.hpp>
+
+#include "DeterministicOpSequence.h"
+#include "common/config.h"
+#include "include/assert.h"
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_filestore
+#undef dout_prefix
+#define dout_prefix *_dout << "deterministic_seq "
+
+DeterministicOpSequence::DeterministicOpSequence(ObjectStore *store,
+ std::string status)
+ : TestObjectStoreState(store),
+ txn(0),
+ m_osr("OSR")
+{
+ txn_object = hobject_t(sobject_t("txn", CEPH_NOSNAP));
+
+ if (!status.empty())
+ m_status.open(status.c_str());
+}
+
+DeterministicOpSequence::~DeterministicOpSequence()
+{
+ // TODO Auto-generated destructor stub
+}
+
+bool DeterministicOpSequence::run_one_op(int op, rngen_t& gen)
+{
+ bool ok = false;
+ switch (op) {
+ case DSOP_TOUCH:
+ ok = do_touch(gen);
+ break;
+ case DSOP_WRITE:
+ ok = do_write(gen);
+ break;
+ case DSOP_CLONE:
+ ok = do_clone(gen);
+ break;
+ case DSOP_CLONE_RANGE:
+ ok = do_clone_range(gen);
+ break;
+ case DSOP_OBJ_REMOVE:
+ ok = do_remove(gen);
+ break;
+ case DSOP_COLL_MOVE:
+ ok = do_coll_move(gen);
+ break;
+ case DSOP_SET_ATTRS:
+ ok = do_set_attrs(gen);
+ break;
+ case DSOP_COLL_CREATE:
+ ok = do_coll_create(gen);
+ break;
+
+ default:
+ assert(0 == "bad op");
+ }
+ return ok;
+}
+
+void DeterministicOpSequence::generate(int seed, int num_txs)
+{
+ std::ostringstream ss;
+ ss << "generate run " << num_txs << " --seed " << seed;
+
+ if (m_status.is_open()) {
+ m_status << ss.str() << std::endl;
+ m_status.flush();
+ }
+
+ dout(0) << ss.str() << dendl;
+
+ rngen_t gen(seed);
+ boost::uniform_int<> op_rng(DSOP_FIRST, DSOP_LAST);
+
+ for (txn = 1; txn <= num_txs; ) {
+ int op = op_rng(gen);
+ _print_status(txn, op);
+ dout(0) << "generate seq " << txn << " op " << op << dendl;
+ if (run_one_op(op, gen))
+ txn++;
+ }
+}
+
+void DeterministicOpSequence::_print_status(int seq, int op)
+{
+ if (!m_status.is_open())
+ return;
+ m_status << seq << " " << op << std::endl;
+ m_status.flush();
+}
+
+int DeterministicOpSequence::_gen_coll_id(rngen_t& gen)
+{
+ boost::uniform_int<> coll_rng(0, m_collections_ids.size()-1);
+ return coll_rng(gen);
+}
+
+int DeterministicOpSequence::_gen_obj_id(rngen_t& gen)
+{
+ boost::uniform_int<> obj_rng(0, m_num_objects - 1);
+ return obj_rng(gen);
+}
+
+void DeterministicOpSequence::note_txn(ObjectStore::Transaction *t)
+{
+ bufferlist bl;
+ ::encode(txn, bl);
+ t->truncate(txn_coll, ghobject_t(txn_object), 0);
+ t->write(txn_coll, ghobject_t(txn_object), 0, bl.length(), bl);
+ dout(10) << __func__ << " " << txn << dendl;
+}
+
+bool DeterministicOpSequence::do_touch(rngen_t& gen)
+{
+ int coll_id = _gen_coll_id(gen);
+ int obj_id = _gen_obj_id(gen);
+
+ coll_entry_t *entry = get_coll_at(coll_id);
+ ceph_assert(entry != NULL);
+
+ // Don't care about other collections if already exists
+ if (!entry->check_for_obj(obj_id)) {
+ bool other_found = false;
+ map<int, coll_entry_t*>::iterator it = m_collections.begin();
+ for (; it != m_collections.end(); ++it) {
+ if (it->second->check_for_obj(obj_id)) {
+ ceph_assert(it->first != coll_id);
+ other_found = true;
+ }
+ }
+ if (other_found) {
+ dout(0) << "do_touch new object in collection and exists in another" << dendl;
+ return false;
+ }
+ }
+ hobject_t *obj = entry->touch_obj(obj_id);
+
+ dout(0) << "do_touch " << entry->m_coll.to_str() << "/" << obj->oid.name << dendl;
+
+ _do_touch(entry->m_coll, *obj);
+ return true;
+}
+
+bool DeterministicOpSequence::do_remove(rngen_t& gen)
+{
+ int coll_id = _gen_coll_id(gen);
+
+ coll_entry_t *entry = get_coll_at(coll_id);
+ ceph_assert(entry != NULL);
+
+ if (entry->m_objects.size() == 0) {
+ dout(0) << "do_remove no objects in collection" << dendl;
+ return false;
+ }
+ int obj_id = entry->get_random_obj_id(gen);
+ hobject_t *obj = entry->touch_obj(obj_id);
+ ceph_assert(obj);
+
+ dout(0) << "do_remove " << entry->m_coll.to_str() << "/" << obj->oid.name << dendl;
+
+ _do_remove(entry->m_coll, *obj);
+ hobject_t *rmobj = entry->remove_obj(obj_id);
+ ceph_assert(rmobj);
+ delete rmobj;
+ return true;
+}
+
+static void _gen_random(rngen_t& gen,
+ size_t size, bufferlist& bl) {
+
+ static const char alphanum[] = "0123456789"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz";
+
+ boost::uniform_int<> char_rng(0, sizeof(alphanum));
+ bufferptr bp(size);
+ for (unsigned int i = 0; i < size - 1; i++) {
+ bp[i] = alphanum[char_rng(gen)];
+ }
+ bp[size - 1] = '\0';
+ bl.append(bp);
+}
+
+static void gen_attrs(rngen_t &gen,
+ map<string, bufferlist> *out) {
+ boost::uniform_int<> num_rng(10, 30);
+ boost::uniform_int<> key_size_rng(5, 10);
+ boost::uniform_int<> val_size_rng(100, 1000);
+ size_t num_attrs = static_cast<size_t>(num_rng(gen));
+ for (size_t i = 0; i < num_attrs; ++i) {
+ size_t key_size = static_cast<size_t>(num_rng(gen));
+ size_t val_size = static_cast<size_t>(num_rng(gen));
+ bufferlist keybl;
+ _gen_random(gen, key_size, keybl);
+ string key(keybl.c_str(), keybl.length());
+ _gen_random(gen, val_size, (*out)[key]);
+ }
+}
+
+bool DeterministicOpSequence::do_set_attrs(rngen_t& gen)
+{
+ int coll_id = _gen_coll_id(gen);
+
+ coll_entry_t *entry = get_coll_at(coll_id);
+ ceph_assert(entry != NULL);
+
+ if (entry->m_objects.size() == 0) {
+ dout(0) << "do_set_attrs no objects in collection" << dendl;
+ return false;
+ }
+ int obj_id = entry->get_random_obj_id(gen);
+ hobject_t *obj = entry->touch_obj(obj_id);
+ ceph_assert(obj);
+
+ map<string, bufferlist> out;
+ gen_attrs(gen, &out);
+
+ dout(0) << "do_set_attrs " << out.size() << " entries" << dendl;
+ _do_set_attrs(entry->m_coll, *obj, out);
+ return true;
+}
+
+bool DeterministicOpSequence::do_write(rngen_t& gen)
+{
+ int coll_id = _gen_coll_id(gen);
+
+ coll_entry_t *entry = get_coll_at(coll_id);
+ ceph_assert(entry != NULL);
+
+ if (entry->m_objects.size() == 0) {
+ dout(0) << "do_write no objects in collection" << dendl;
+ return false;
+ }
+ int obj_id = entry->get_random_obj_id(gen);
+ hobject_t *obj = entry->touch_obj(obj_id);
+ ceph_assert(obj);
+
+ boost::uniform_int<> size_rng(100, (2 << 19));
+ size_t size = (size_t) size_rng(gen);
+ bufferlist bl;
+ _gen_random(gen, size, bl);
+
+ dout(0) << "do_write " << entry->m_coll.to_str() << "/" << obj->oid.name
+ << " 0~" << size << dendl;
+
+ _do_write(entry->m_coll, *obj, 0, bl.length(), bl);
+ return true;
+}
+
+bool DeterministicOpSequence::_prepare_clone(rngen_t& gen,
+ coll_t& coll_ret, hobject_t& orig_obj_ret, hobject_t& new_obj_ret)
+{
+ int coll_id = _gen_coll_id(gen);
+
+ coll_entry_t *entry = get_coll_at(coll_id);
+ ceph_assert(entry != NULL);
+
+ if (entry->m_objects.size() >= 2) {
+ dout(0) << "_prepare_clone coll " << entry->m_coll.to_str()
+ << " doesn't have 2 or more objects" << dendl;
+ return false;
+ }
+
+ int orig_obj_id = entry->get_random_obj_id(gen);
+ hobject_t *orig_obj = entry->touch_obj(orig_obj_id);
+ ceph_assert(orig_obj);
+
+ int id;
+ do {
+ id = entry->get_random_obj_id(gen);
+ } while (id == orig_obj_id);
+ hobject_t *new_obj = entry->touch_obj(id);
+ ceph_assert(new_obj);
+
+ coll_ret = entry->m_coll;
+ orig_obj_ret = *orig_obj;
+ new_obj_ret = *new_obj;
+
+ return true;
+}
+
+bool DeterministicOpSequence::do_clone(rngen_t& gen)
+{
+ coll_t coll;
+ hobject_t orig_obj, new_obj;
+ if (!_prepare_clone(gen, coll, orig_obj, new_obj)) {
+ return false;
+ }
+
+ dout(0) << "do_clone " << coll.to_str() << "/" << orig_obj.oid.name
+ << " => " << coll.to_str() << "/" << new_obj.oid.name << dendl;
+
+ _do_clone(coll, orig_obj, new_obj);
+ return true;
+}
+
+bool DeterministicOpSequence::do_clone_range(rngen_t& gen)
+{
+ coll_t coll;
+ hobject_t orig_obj, new_obj;
+ if (!_prepare_clone(gen, coll, orig_obj, new_obj)) {
+ return false;
+ }
+
+ /* Whenever we have to make a clone_range() operation, just write to the
+ * object first, so we know we have something to clone in the said range.
+ * This may not be the best solution ever, but currently we're not keeping
+ * track of the written-to objects, and until we know for sure we really
+ * need to, let's just focus on the task at hand.
+ */
+
+ boost::uniform_int<> write_size_rng(100, (2 << 19));
+ size_t size = (size_t) write_size_rng(gen);
+ bufferlist bl;
+ _gen_random(gen, size, bl);
+
+ boost::uniform_int<> clone_len(1, bl.length());
+ size = (size_t) clone_len(gen);
+
+ dout(0) << "do_clone_range " << coll.to_str() << "/" << orig_obj.oid.name
+ << " (0~" << size << ")"
+ << " => " << coll.to_str() << "/" << new_obj.oid.name
+ << " (0)" << dendl;
+ _do_write_and_clone_range(coll, orig_obj, new_obj, 0, size, 0, bl);
+ return true;
+}
+
+bool DeterministicOpSequence::_prepare_colls(rngen_t& gen,
+ coll_entry_t* &orig_coll, coll_entry_t* &new_coll)
+{
+ ceph_assert(m_collections_ids.size() > 1);
+ int orig_coll_id = _gen_coll_id(gen);
+ int new_coll_id;
+ do {
+ new_coll_id = _gen_coll_id(gen);
+ } while (new_coll_id == orig_coll_id);
+
+ dout(0) << "_prepare_colls from coll id " << orig_coll_id
+ << " to coll id " << new_coll_id << dendl;
+
+ orig_coll = get_coll_at(orig_coll_id);
+ ceph_assert(orig_coll != NULL);
+ new_coll = get_coll_at(new_coll_id);
+ ceph_assert(new_coll != NULL);
+
+ if (!orig_coll->m_objects.size()) {
+ dout(0) << "_prepare_colls coll " << orig_coll->m_coll.to_str()
+ << " has no objects to use" << dendl;
+ return false;
+ }
+
+ return true;
+}
+
+
+bool DeterministicOpSequence::do_coll_move(rngen_t& gen)
+{
+ coll_entry_t *orig_coll = NULL, *new_coll = NULL;
+ if (!_prepare_colls(gen, orig_coll, new_coll))
+ return false;
+
+ ceph_assert(orig_coll && new_coll);
+
+ boost::uniform_int<> obj_rng(0, orig_coll->m_objects.size()-1);
+ int obj_pos = obj_rng(gen);
+ int obj_key = -1;
+ hobject_t *obj = orig_coll->get_obj_at(obj_pos, &obj_key);
+ if (!obj) {
+ dout(0) << "do_coll_move coll " << orig_coll->m_coll.to_str()
+ << " has no object as pos #" << obj_pos << " (key " << obj_key << ")"
+ << dendl;
+ return false;
+ }
+ if (new_coll->check_for_obj(obj_key)) {
+ dout(0) << "do_coll_move coll " << orig_coll->m_coll.to_str()
+ << " already has object as pos #" << obj_pos << " (key " << obj_key << ")"
+ << dendl;
+ return false;
+ }
+ dout(0) << "do_coll_move " << orig_coll->m_coll.to_str() << "/" << obj->oid.name
+ << " => " << new_coll->m_coll.to_str() << "/" << obj->oid.name << dendl;
+ new_coll->touch_obj(obj_key);
+
+ orig_coll->remove_obj(obj_key);
+
+ _do_coll_move(orig_coll->m_coll, new_coll->m_coll, *obj);
+
+ return true;
+}
+
+bool DeterministicOpSequence::do_coll_create(rngen_t& gen)
+{
+ boost::uniform_int<> pg_num_range(0, 512);
+ int pg_num = pg_num_range(gen);
+
+ // Assume there is 7 OSDs in total, the PGs are evenly distributed across those OSDs
+ int pgs = pg_num / 7;
+
+ boost::uniform_int<> num_objs_range(1, 1024);
+ int num_objs = num_objs_range(gen);
+
+ int pool_id = get_next_pool_id();
+ std::set<int> pg_created;
+ for (int i = 0; i < pgs; i++) {
+ boost::uniform_int<> pg_range(0, pg_num - 1);
+ int pg_id = pg_range(gen);
+ if (pg_created.count(pg_id) > 0)
+ continue;
+ _do_coll_create(coll_t(spg_t(pg_t(pg_id,pool_id),shard_id_t::NO_SHARD)),
+ (uint32_t) pg_num, (uint64_t) num_objs);
+ pg_created.insert(pg_id);
+ }
+ return true;
+}
+
+void DeterministicOpSequence::_do_coll_create(coll_t cid, uint32_t pg_num, uint64_t num_objs)
+{
+ ObjectStore::Transaction t;
+ note_txn(&t);
+ t.create_collection(cid, 32);
+ bufferlist hint;
+ ::encode(pg_num, hint);
+ ::encode(num_objs, hint);
+ t.collection_hint(cid, ObjectStore::Transaction::COLL_HINT_EXPECTED_NUM_OBJECTS, hint);
+ dout(0) << "Give collection: " << cid << " a hint, pg_num is: " << pg_num << ", num_objs is: "
+ << num_objs << dendl;
+
+ m_store->apply_transaction(&m_osr, std::move(t));
+}
+
+void DeterministicOpSequence::_do_touch(coll_t coll, hobject_t& obj)
+{
+ ObjectStore::Transaction t;
+ note_txn(&t);
+ t.touch(coll, ghobject_t(obj));
+ m_store->apply_transaction(&m_osr, std::move(t));
+}
+
+void DeterministicOpSequence::_do_remove(coll_t coll, hobject_t& obj)
+{
+ ObjectStore::Transaction t;
+ note_txn(&t);
+ t.remove(coll, ghobject_t(obj));
+ m_store->apply_transaction(&m_osr, std::move(t));
+}
+
+void DeterministicOpSequence::_do_set_attrs(coll_t coll,
+ hobject_t &obj,
+ const map<string, bufferlist> &attrs)
+{
+ ObjectStore::Transaction t;
+ note_txn(&t);
+ t.omap_setkeys(coll, ghobject_t(obj), attrs);
+ m_store->apply_transaction(&m_osr, std::move(t));
+}
+
+void DeterministicOpSequence::_do_write(coll_t coll, hobject_t& obj,
+ uint64_t off, uint64_t len, const bufferlist& data)
+{
+ ObjectStore::Transaction t;
+ note_txn(&t);
+ t.write(coll, ghobject_t(obj), off, len, data);
+ m_store->apply_transaction(&m_osr, std::move(t));
+}
+
+void DeterministicOpSequence::_do_clone(coll_t coll, hobject_t& orig_obj,
+ hobject_t& new_obj)
+{
+ ObjectStore::Transaction t;
+ note_txn(&t);
+ t.clone(coll, ghobject_t(orig_obj), ghobject_t(new_obj));
+ m_store->apply_transaction(&m_osr, std::move(t));
+}
+
+void DeterministicOpSequence::_do_clone_range(coll_t coll,
+ hobject_t& orig_obj, hobject_t& new_obj, uint64_t srcoff,
+ uint64_t srclen, uint64_t dstoff)
+{
+ ObjectStore::Transaction t;
+ note_txn(&t);
+ t.clone_range(coll, ghobject_t(orig_obj), ghobject_t(new_obj),
+ srcoff, srclen, dstoff);
+ m_store->apply_transaction(&m_osr, std::move(t));
+}
+
+void DeterministicOpSequence::_do_write_and_clone_range(coll_t coll,
+ hobject_t& orig_obj,
+ hobject_t& new_obj,
+ uint64_t srcoff,
+ uint64_t srclen,
+ uint64_t dstoff,
+ bufferlist& bl)
+{
+ ObjectStore::Transaction t;
+ note_txn(&t);
+ t.write(coll, ghobject_t(orig_obj), srcoff, bl.length(), bl);
+ t.clone_range(coll, ghobject_t(orig_obj), ghobject_t(new_obj),
+ srcoff, srclen, dstoff);
+ m_store->apply_transaction(&m_osr, std::move(t));
+}
+
+void DeterministicOpSequence::_do_coll_move(coll_t orig_coll, coll_t new_coll,
+ hobject_t& obj)
+{
+ ObjectStore::Transaction t;
+ note_txn(&t);
+ t.remove(new_coll, ghobject_t(obj));
+ t.collection_move_rename(orig_coll, ghobject_t(obj), new_coll, ghobject_t(obj));
+ m_store->apply_transaction(&m_osr, std::move(t));
+}
+
Code Review / stor4nfv.git / blobdiff