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|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "./scrubber_generators.h"
#include "./scrubber_test_datasets.h"
#include <gtest/gtest.h>
#include <signal.h>
#include <stdio.h>
#include <fmt/ranges.h>
#include "common/async/context_pool.h"
#include "common/ceph_argparse.h"
#include "global/global_context.h"
#include "global/global_init.h"
#include "mon/MonClient.h"
#include "msg/Messenger.h"
#include "os/ObjectStore.h"
#include "osd/PG.h"
#include "osd/PGBackend.h"
#include "osd/PrimaryLogPG.h"
#include "osd/osd_types.h"
#include "osd/osd_types_fmt.h"
#include "osd/scrubber/pg_scrubber.h"
#include "osd/scrubber/scrub_backend.h"
/// \file testing isolated parts of the Scrubber backend
using namespace std::string_literals;
int main(int argc, char** argv)
{
std::map<std::string, std::string> defaults = {
// make sure we have 3 copies, or some tests won't work
{"osd_pool_default_size", "3"},
// our map is flat, so just try and split across OSDs, not hosts or whatever
{"osd_crush_chooseleaf_type", "0"},
};
std::vector<const char*> args(argv, argv + argc);
auto cct = global_init(&defaults,
args,
CEPH_ENTITY_TYPE_CLIENT,
CODE_ENVIRONMENT_UTILITY,
CINIT_FLAG_NO_DEFAULT_CONFIG_FILE);
common_init_finish(g_ceph_context);
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
class TestScrubBackend : public ScrubBackend {
public:
TestScrubBackend(ScrubBeListener& scrubber,
PgScrubBeListener& pg,
pg_shard_t i_am,
bool repair,
scrub_level_t shallow_or_deep,
const std::set<pg_shard_t>& acting)
: ScrubBackend(scrubber, pg, i_am, repair, shallow_or_deep, acting)
{}
bool get_m_repair() const { return m_repair; }
bool get_is_replicated() const { return m_is_replicated; }
auto get_omap_stats() const { return m_omap_stats; }
const std::vector<pg_shard_t>& all_but_me() const { return m_acting_but_me; }
/// populate the scrub-maps set for the 'chunk' being scrubbed
void insert_faked_smap(pg_shard_t shard, const ScrubMap& smap);
};
// mocking the PG
class TestPg : public PgScrubBeListener {
public:
~TestPg() = default;
TestPg(std::shared_ptr<PGPool> pool, pg_info_t& pginfo, pg_shard_t my_osd)
: m_pool{pool}
, m_info{pginfo}
, m_pshard{my_osd}
{}
const PGPool& get_pgpool() const final { return *(m_pool.get()); }
pg_shard_t get_primary() const final { return m_pshard; }
void force_object_missing(ScrubberPasskey,
const std::set<pg_shard_t>& peer,
const hobject_t& oid,
eversion_t version) final
{}
const pg_info_t& get_pg_info(ScrubberPasskey) const final { return m_info; }
uint64_t logical_to_ondisk_size(uint64_t logical_size) const final
{
return logical_size;
}
bool is_waiting_for_unreadable_object() const final { return false; }
std::shared_ptr<PGPool> m_pool;
pg_info_t& m_info;
pg_shard_t m_pshard;
};
// ///////////////////////////////////////////////////////////////////////////
// ///////////////////////////////////////////////////////////////////////////
// and the scrubber
class TestScrubber : public ScrubBeListener, public Scrub::SnapMapReaderI {
using result_t = Scrub::SnapMapReaderI::result_t;
public:
~TestScrubber() = default;
TestScrubber(spg_t spg, OSDMapRef osdmap, LoggerSinkSet& logger)
: m_spg{spg}
, m_logger{logger}
, m_osdmap{osdmap}
{}
std::ostream& gen_prefix(std::ostream& out) const final { return out; }
CephContext* get_pg_cct() const final { return g_ceph_context; }
LoggerSinkSet& get_logger() const final { return m_logger; }
bool is_primary() const final { return m_primary; }
spg_t get_pgid() const final { return m_info.pgid; }
const OSDMapRef& get_osdmap() const final { return m_osdmap; }
void add_to_stats(const object_stat_sum_t& stat) final { m_stats.add(stat); }
// submit_digest_fixes() mock can be set to expect a specific set of
// fixes to perform.
/// \todo implement the mock.
void submit_digest_fixes(const digests_fixes_t& fixes) final
{
std::cout << fmt::format("{} submit_digest_fixes({})",
__func__,
fmt::join(fixes, ","))
<< std::endl;
}
int get_snaps(const hobject_t& hoid,
std::set<snapid_t>* snaps_set) const;
tl::expected<std::set<snapid_t>, result_t> get_snaps(
const hobject_t& oid) const final;
tl::expected<std::set<snapid_t>, result_t> get_snaps_check_consistency(
const hobject_t& oid) const final
{
/// \todo for now
return get_snaps(oid);
}
void set_snaps(const hobject_t& hoid, const std::vector<snapid_t>& snaps)
{
std::cout
<< fmt::format("{}: ({}) -> #{} {}", __func__, hoid, snaps.size(), snaps)
<< std::endl;
std::set<snapid_t> snaps_set(snaps.begin(), snaps.end());
m_snaps[hoid] = snaps_set;
}
void set_snaps(const ScrubGenerator::all_clones_snaps_t& clones_snaps)
{
for (const auto& [clone, snaps] : clones_snaps) {
std::cout << fmt::format("{}: ({}) -> #{} {}",
__func__,
clone,
snaps.size(),
snaps)
<< std::endl;
std::set<snapid_t> snaps_set(snaps.begin(), snaps.end());
m_snaps[clone] = snaps_set;
}
}
bool m_primary{true};
spg_t m_spg;
LoggerSinkSet& m_logger;
OSDMapRef m_osdmap;
pg_info_t m_info;
object_stat_sum_t m_stats;
// the "snap-mapper" database (returned by get_snaps())
std::map<hobject_t, std::set<snapid_t>> m_snaps;
};
int TestScrubber::get_snaps(const hobject_t& hoid,
std::set<snapid_t>* snaps_set) const
{
auto it = m_snaps.find(hoid);
if (it == m_snaps.end()) {
std::cout << fmt::format("{}: ({}) no snaps", __func__, hoid) << std::endl;
return -ENOENT;
}
*snaps_set = it->second;
std::cout << fmt::format("{}: ({}) -> #{} {}",
__func__,
hoid,
snaps_set->size(),
*snaps_set)
<< std::endl;
return 0;
}
tl::expected<std::set<snapid_t>, Scrub::SnapMapReaderI::result_t>
TestScrubber::get_snaps(const hobject_t& oid) const
{
std::set<snapid_t> snapset;
auto r = get_snaps(oid, &snapset);
if (r >= 0) {
return snapset;
}
return tl::make_unexpected(Scrub::SnapMapReaderI::result_t{
Scrub::SnapMapReaderI::result_t::code_t::not_found,
r});
}
// ///////////////////////////////////////////////////////////////////////////
// ///////////////////////////////////////////////////////////////////////////
/// parameters for TestTScrubberBe construction
struct TestTScrubberBeParams {
ScrubGenerator::pool_conf_t pool_conf;
ScrubGenerator::RealObjsConf objs_conf;
int num_osds;
};
// ///////////////////////////////////////////////////////////////////////////
// ///////////////////////////////////////////////////////////////////////////
// the actual owner of the OSD "objects" that are used by
// the mockers
class TestTScrubberBe : public ::testing::Test {
public:
// the test data source
virtual TestTScrubberBeParams inject_params() = 0;
// initial test data
ScrubGenerator::MockLog logger;
ScrubGenerator::pool_conf_t pool_conf;
ScrubGenerator::RealObjsConf real_objs;
int num_osds{0};
// ctor & initialization
TestTScrubberBe() = default;
~TestTScrubberBe() = default;
void SetUp() override;
void TearDown() override;
/**
* Create the set of scrub-maps supposedly sent by the replica (or
* generated by the Primary). Then - create the snap-sets for all
* the objects in the set.
*/
void fake_a_scrub_set(ScrubGenerator::RealObjsConfList& all_sets);
std::unique_ptr<TestScrubBackend> sbe;
spg_t spg;
pg_shard_t i_am; // set to 'my osd and no shard'
std::set<pg_shard_t> acting_shards;
std::vector<int> acting_osds;
int acting_primary;
std::unique_ptr<TestScrubber> test_scrubber;
int64_t pool_id;
pg_pool_t pool_info;
OSDMapRef osdmap;
std::shared_ptr<PGPool> pool;
pg_info_t info;
std::unique_ptr<TestPg> test_pg;
// generated sets of "objects" for the active OSDs
ScrubGenerator::RealObjsConfList real_objs_list;
protected:
/**
* Create the OSDmap and populate it with one pool, based on
* the pool configuration.
* For now - only replicated pools are supported.
*/
OSDMapRef setup_map(int num_osds, const ScrubGenerator::pool_conf_t& pconf);
/**
* Create a PG in the one pool we have. Fake the PG info.
* Use the primary of the PG to determine "who we are".
*
* \returns the PG info
*/
pg_info_t setup_pg_in_map();
};
// ///////////////////////////////////////////////////////////////////////////
// ///////////////////////////////////////////////////////////////////////////
void TestTScrubberBe::SetUp()
{
std::cout << "TestTScrubberBe::SetUp()" << std::endl;
logger.err_count = 0;
// fetch test configuration
auto params = inject_params();
pool_conf = params.pool_conf;
real_objs = params.objs_conf;
num_osds = params.num_osds;
// create the OSDMap
osdmap = setup_map(num_osds, pool_conf);
std::cout << "osdmap: " << *osdmap << std::endl;
// extract the pool from the osdmap
pool_id = osdmap->lookup_pg_pool_name(pool_conf.name);
const pg_pool_t* ext_pool_info = osdmap->get_pg_pool(pool_id);
pool =
std::make_shared<PGPool>(osdmap, pool_id, *ext_pool_info, pool_conf.name);
std::cout << "pool: " << pool->info << std::endl;
// a PG in that pool?
info = setup_pg_in_map();
std::cout << fmt::format("PG info: {}", info) << std::endl;
real_objs_list =
ScrubGenerator::make_real_objs_conf(pool_id, real_objs, acting_osds);
// now we can create the main mockers
// the "PgScrubber"
test_scrubber = std::make_unique<TestScrubber>(spg, osdmap, logger);
// the "PG" (and its backend)
test_pg = std::make_unique<TestPg>(pool, info, i_am);
std::cout << fmt::format("{}: acting: {}", __func__, acting_shards)
<< std::endl;
sbe = std::make_unique<TestScrubBackend>(*test_scrubber,
*test_pg,
i_am,
/* repair? */ false,
scrub_level_t::deep,
acting_shards);
// create a osd-num only copy of the relevant OSDs
acting_osds.reserve(acting_shards.size());
for (const auto& shard : acting_shards) {
acting_osds.push_back(shard.osd);
}
sbe->new_chunk();
fake_a_scrub_set(real_objs_list);
}
// Note: based on TestOSDMap.cc.
OSDMapRef TestTScrubberBe::setup_map(int num_osds,
const ScrubGenerator::pool_conf_t& pconf)
{
auto osdmap = std::make_shared<OSDMap>();
uuid_d fsid;
osdmap->build_simple(g_ceph_context, 0, fsid, num_osds);
OSDMap::Incremental pending_inc(osdmap->get_epoch() + 1);
pending_inc.fsid = osdmap->get_fsid();
entity_addrvec_t sample_addrs;
sample_addrs.v.push_back(entity_addr_t());
uuid_d sample_uuid;
for (int i = 0; i < num_osds; ++i) {
sample_uuid.generate_random();
sample_addrs.v[0].nonce = i;
pending_inc.new_state[i] = CEPH_OSD_EXISTS | CEPH_OSD_NEW;
pending_inc.new_up_client[i] = sample_addrs;
pending_inc.new_up_cluster[i] = sample_addrs;
pending_inc.new_hb_back_up[i] = sample_addrs;
pending_inc.new_hb_front_up[i] = sample_addrs;
pending_inc.new_weight[i] = CEPH_OSD_IN;
pending_inc.new_uuid[i] = sample_uuid;
}
osdmap->apply_incremental(pending_inc);
// create a replicated pool
OSDMap::Incremental new_pool_inc(osdmap->get_epoch() + 1);
new_pool_inc.new_pool_max = osdmap->get_pool_max();
new_pool_inc.fsid = osdmap->get_fsid();
uint64_t pool_id = ++new_pool_inc.new_pool_max;
pg_pool_t empty;
auto p = new_pool_inc.get_new_pool(pool_id, &empty);
p->size = pconf.size;
p->set_pg_num(pconf.pg_num);
p->set_pgp_num(pconf.pgp_num);
p->type = pg_pool_t::TYPE_REPLICATED;
p->crush_rule = 0;
p->set_flag(pg_pool_t::FLAG_HASHPSPOOL);
new_pool_inc.new_pool_names[pool_id] = pconf.name;
osdmap->apply_incremental(new_pool_inc);
return osdmap;
}
pg_info_t TestTScrubberBe::setup_pg_in_map()
{
pg_t rawpg(0, pool_id);
pg_t pgid = osdmap->raw_pg_to_pg(rawpg);
std::vector<int> up_osds;
int up_primary;
osdmap->pg_to_up_acting_osds(pgid,
&up_osds,
&up_primary,
&acting_osds,
&acting_primary);
std::cout << fmt::format(
"{}: pg: {} up_osds: {} up_primary: {} acting_osds: {} "
"acting_primary: "
"{}",
__func__,
pgid,
up_osds,
up_primary,
acting_osds,
acting_primary)
<< std::endl;
spg = spg_t{pgid};
i_am = pg_shard_t{up_primary};
std::cout << fmt::format("{}: spg: {} and I am {}", __func__, spg, i_am)
<< std::endl;
// the 'acting shards' set - the one actually used by the scrubber
std::for_each(acting_osds.begin(), acting_osds.end(), [&](int osd) {
acting_shards.insert(pg_shard_t{osd});
});
std::cout << fmt::format("{}: acting_shards: {}", __func__, acting_shards)
<< std::endl;
pg_info_t info;
info.pgid = spg;
/// \todo: handle the epochs:
// info.last_update = osdmap->get_epoch();
// info.last_complete = osdmap->get_epoch();
// info.last_osdmap_epoch = osdmap->get_epoch();
// info.history.last_epoch_marked_removed = osdmap->get_epoch();
info.last_user_version = 1;
info.purged_snaps = {};
info.last_user_version = 1;
info.history.last_epoch_clean = osdmap->get_epoch();
info.history.last_epoch_split = osdmap->get_epoch();
info.history.last_epoch_marked_full = osdmap->get_epoch();
info.last_backfill = hobject_t::get_max();
return info;
}
void TestTScrubberBe::TearDown()
{
EXPECT_EQ(logger.err_count, logger.expected_err_count);
}
void TestTScrubberBe::fake_a_scrub_set(
ScrubGenerator::RealObjsConfList& all_sets)
{
for (int osd_num = 0; osd_num < pool_conf.size; ++osd_num) {
ScrubMap smap;
smap.valid_through = eversion_t{1, 1};
smap.incr_since = eversion_t{1, 1};
smap.has_omap_keys = true; // to force omap checks
// fill the map with the objects relevant to this OSD
for (auto& obj : all_sets[osd_num]->objs) {
std::cout << fmt::format("{}: object: {}", __func__, obj.ghobj.hobj)
<< std::endl;
ScrubGenerator::add_object(smap, obj, osd_num);
}
std::cout << fmt::format("{}: {} inserting smap {:D}",
__func__,
osd_num,
smap)
<< std::endl;
sbe->insert_faked_smap(pg_shard_t{osd_num}, smap);
}
// create the snap_mapper state
for (const auto& robj : all_sets[i_am.osd]->objs) {
std::cout << fmt::format("{}: object: {}", __func__, robj.ghobj.hobj)
<< std::endl;
if (robj.ghobj.hobj.snap == CEPH_NOSNAP) {
// head object
auto objects_snapset = ScrubGenerator::all_clones(robj);
test_scrubber->set_snaps(objects_snapset);
}
}
}
void TestScrubBackend::insert_faked_smap(pg_shard_t shard, const ScrubMap& smap)
{
ASSERT_TRUE(this_chunk.has_value());
std::cout << fmt::format("{}: inserting faked smap for osd {}",
__func__,
shard.osd)
<< std::endl;
this_chunk->received_maps[shard] = smap;
}
// ///////////////////////////////////////////////////////////////////////////
// ///////////////////////////////////////////////////////////////////////////
using namespace ScrubGenerator;
class TestTScrubberBe_data_1 : public TestTScrubberBe {
public:
TestTScrubberBe_data_1() : TestTScrubberBe() {}
// test configuration
pool_conf_t pl{3, 3, 3, 3, "rep_pool"};
TestTScrubberBeParams inject_params() override
{
std::cout << fmt::format("{}: injecting params (minimal snaps conf.)",
__func__)
<< std::endl;
return TestTScrubberBeParams{
/* pool_conf */ pl,
/* real_objs_conf */ ScrubDatasets::minimal_snaps_configuration,
/*num_osds */ 3};
}
};
// some basic sanity checks
// (mainly testing the constructor)
TEST_F(TestTScrubberBe_data_1, creation_1)
{
/// \todo copy some osdmap tests from TestOSDMap.cc
ASSERT_TRUE(sbe);
ASSERT_TRUE(sbe->get_is_replicated());
ASSERT_FALSE(sbe->get_m_repair());
sbe->update_repair_status(true);
ASSERT_TRUE(sbe->get_m_repair());
// make sure *I* do not appear in 'all_but_me' set of OSDs
auto others = sbe->all_but_me();
auto in_others = std::find(others.begin(), others.end(), i_am);
EXPECT_EQ(others.end(), in_others);
}
TEST_F(TestTScrubberBe_data_1, smaps_creation_1)
{
ASSERT_TRUE(sbe);
ASSERT_EQ(sbe->get_omap_stats().omap_bytes, 0);
// for test data 'minimal_snaps_configuration':
// scrub_compare_maps() should not emmit any error, nor
// return any snap-mapper fix
auto [incons, fix_list] = sbe->scrub_compare_maps(true, *test_scrubber);
EXPECT_EQ(fix_list.size(), 0); // snap-mapper fix should be empty
EXPECT_EQ(incons.size(), 0); // no inconsistency
// make sure the test did execute *something*
EXPECT_TRUE(sbe->get_omap_stats().omap_bytes != 0);
}
// whitebox testing (OK if failing after a change to the backend internals)
// blackbox testing - testing the published functionality
// (should not depend on internals of the backend)
/// corrupt the snap_mapper data
TEST_F(TestTScrubberBe_data_1, snapmapper_1)
{
using snap_mapper_op_t = Scrub::snap_mapper_op_t;
ASSERT_TRUE(sbe);
// a bogus version of hobj_ms1_snp30 (a clone) snap_ids
hobject_t hobj_ms1_snp30_inpool = hobject_t{ScrubDatasets::hobj_ms1_snp30};
hobj_ms1_snp30_inpool.pool = pool_id;
all_clones_snaps_t bogus_30;
bogus_30[hobj_ms1_snp30_inpool] = {0x333, 0x666};
test_scrubber->set_snaps(bogus_30);
auto [incons, fix_list] = sbe->scrub_compare_maps(true, *test_scrubber);
EXPECT_EQ(fix_list.size(), 1);
// debug - print the fix-list:
for (const auto& fix : fix_list) {
std::cout << fmt::format("snapmapper_1: fix {}: {} {}->{}",
fix.hoid,
(fix.op == snap_mapper_op_t::add ? "add" : "upd"),
fix.wrong_snaps,
fix.snaps)
<< std::endl;
}
EXPECT_EQ(fix_list[0].hoid, hobj_ms1_snp30_inpool);
EXPECT_EQ(fix_list[0].snaps, std::set<snapid_t>{0x30});
EXPECT_EQ(incons.size(), 0); // no inconsistency
}
// a dataset similar to 'minimal_snaps_configuration',
// but with the hobj_ms1_snp30 clone being modified by a corruption
// function
class TestTScrubberBe_data_2 : public TestTScrubberBe {
public:
TestTScrubberBe_data_2() : TestTScrubberBe() {}
// basic test configuration - 3 OSDs, all involved in the pool
pool_conf_t pl{3, 3, 3, 3, "rep_pool"};
TestTScrubberBeParams inject_params() override
{
std::cout << fmt::format(
"{}: injecting params (minimal-snaps + size change)",
__func__)
<< std::endl;
TestTScrubberBeParams params{
/* pool_conf */ pl,
/* real_objs_conf */ ScrubDatasets::minimal_snaps_configuration,
/*num_osds */ 3};
// inject a corruption function that will modify osd.0's version of
// the object
params.objs_conf.objs[0].corrupt_funcs = &ScrubDatasets::crpt_funcs_set1;
return params;
}
};
TEST_F(TestTScrubberBe_data_2, smaps_clone_size)
{
ASSERT_TRUE(sbe);
EXPECT_EQ(sbe->get_omap_stats().omap_bytes, 0);
logger.set_expected_err_count(1);
auto [incons, fix_list] = sbe->scrub_compare_maps(true, *test_scrubber);
EXPECT_EQ(fix_list.size(), 0); // snap-mapper fix should be empty
EXPECT_EQ(incons.size(), 1); // one inconsistency
}
// Local Variables:
// compile-command: "cd ../.. ; make unittest_osdscrub ; ./unittest_osdscrub
// --log-to-stderr=true --debug-osd=20 # --gtest_filter=*.* " End:
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