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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "test/librbd/test_fixture.h"
#include "test/librbd/test_support.h"
#include "librbd/ExclusiveLock.h"
#include "librbd/ImageCtx.h"
#include "librbd/ImageState.h"
#include "librbd/ImageWatcher.h"
#include "librbd/internal.h"
#include "librbd/ObjectMap.h"
#include "common/Cond.h"
#include "common/Throttle.h"
#include "cls/rbd/cls_rbd_client.h"
#include "cls/rbd/cls_rbd_types.h"
#include <list>
#include <boost/accumulators/accumulators.hpp>
#include <boost/accumulators/statistics/stats.hpp>
#include <boost/accumulators/statistics/rolling_sum.hpp>
void register_test_object_map() {
}
class TestObjectMap : public TestFixture {
public:
int when_open_object_map(librbd::ImageCtx *ictx) {
C_SaferCond ctx;
librbd::ObjectMap<> *object_map = new librbd::ObjectMap<>(*ictx, ictx->snap_id);
object_map->open(&ctx);
int r = ctx.wait();
object_map->put();
return r;
}
};
TEST_F(TestObjectMap, RefreshInvalidatesWhenCorrupt) {
REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
librbd::ImageCtx *ictx;
ASSERT_EQ(0, open_image(m_image_name, &ictx));
bool flags_set;
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_FALSE(flags_set);
C_SaferCond lock_ctx;
{
std::unique_lock owner_locker{ictx->owner_lock};
ictx->exclusive_lock->try_acquire_lock(&lock_ctx);
}
ASSERT_EQ(0, lock_ctx.wait());
std::string oid = librbd::ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP);
bufferlist bl;
bl.append("corrupt");
ASSERT_EQ(0, ictx->md_ctx.write_full(oid, bl));
ASSERT_EQ(0, when_open_object_map(ictx));
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_TRUE(flags_set);
}
TEST_F(TestObjectMap, RefreshInvalidatesWhenTooSmall) {
REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
librbd::ImageCtx *ictx;
ASSERT_EQ(0, open_image(m_image_name, &ictx));
bool flags_set;
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_FALSE(flags_set);
C_SaferCond lock_ctx;
{
std::unique_lock owner_locker{ictx->owner_lock};
ictx->exclusive_lock->try_acquire_lock(&lock_ctx);
}
ASSERT_EQ(0, lock_ctx.wait());
librados::ObjectWriteOperation op;
librbd::cls_client::object_map_resize(&op, 0, OBJECT_NONEXISTENT);
std::string oid = librbd::ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP);
ASSERT_EQ(0, ictx->md_ctx.operate(oid, &op));
ASSERT_EQ(0, when_open_object_map(ictx));
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_TRUE(flags_set);
}
TEST_F(TestObjectMap, InvalidateFlagOnDisk) {
REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
librbd::ImageCtx *ictx;
ASSERT_EQ(0, open_image(m_image_name, &ictx));
bool flags_set;
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_FALSE(flags_set);
C_SaferCond lock_ctx;
{
std::unique_lock owner_locker{ictx->owner_lock};
ictx->exclusive_lock->try_acquire_lock(&lock_ctx);
}
ASSERT_EQ(0, lock_ctx.wait());
std::string oid = librbd::ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP);
bufferlist bl;
bl.append("corrupt");
ASSERT_EQ(0, ictx->md_ctx.write_full(oid, bl));
ASSERT_EQ(0, when_open_object_map(ictx));
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_TRUE(flags_set);
ASSERT_EQ(0, open_image(m_image_name, &ictx));
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_TRUE(flags_set);
}
TEST_F(TestObjectMap, AcquireLockInvalidatesWhenTooSmall) {
REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
librbd::ImageCtx *ictx;
ASSERT_EQ(0, open_image(m_image_name, &ictx));
bool flags_set;
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_FALSE(flags_set);
librados::ObjectWriteOperation op;
librbd::cls_client::object_map_resize(&op, 0, OBJECT_NONEXISTENT);
std::string oid = librbd::ObjectMap<>::object_map_name(ictx->id, CEPH_NOSNAP);
ASSERT_EQ(0, ictx->md_ctx.operate(oid, &op));
C_SaferCond lock_ctx;
{
std::unique_lock owner_locker{ictx->owner_lock};
ictx->exclusive_lock->try_acquire_lock(&lock_ctx);
}
ASSERT_EQ(0, lock_ctx.wait());
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_TRUE(flags_set);
// Test the flag is stored on disk
ASSERT_EQ(0, ictx->state->refresh());
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_TRUE(flags_set);
}
TEST_F(TestObjectMap, DISABLED_StressTest) {
REQUIRE_FEATURE(RBD_FEATURE_OBJECT_MAP);
uint64_t object_count = cls::rbd::MAX_OBJECT_MAP_OBJECT_COUNT;
librbd::ImageCtx *ictx;
ASSERT_EQ(0, open_image(m_image_name, &ictx));
ASSERT_EQ(0, resize(ictx, ictx->layout.object_size * object_count));
bool flags_set;
ASSERT_EQ(0, ictx->test_flags(CEPH_NOSNAP, RBD_FLAG_OBJECT_MAP_INVALID,
&flags_set));
ASSERT_FALSE(flags_set);
srand(time(NULL) % (unsigned long) -1);
coarse_mono_time start = coarse_mono_clock::now();
chrono::duration<double> last = chrono::duration<double>::zero();
const int WINDOW_SIZE = 5;
typedef boost::accumulators::accumulator_set<
double, boost::accumulators::stats<
boost::accumulators::tag::rolling_sum> > RollingSum;
RollingSum time_acc(
boost::accumulators::tag::rolling_window::window_size = WINDOW_SIZE);
RollingSum ios_acc(
boost::accumulators::tag::rolling_window::window_size = WINDOW_SIZE);
uint32_t io_threads = 16;
uint64_t cur_ios = 0;
SimpleThrottle throttle(io_threads, false);
for (uint64_t ios = 0; ios < 100000;) {
if (throttle.pending_error()) {
break;
}
throttle.start_op();
uint64_t object_no = (rand() % object_count);
auto ctx = new LambdaContext([&throttle, object_no](int r) {
ASSERT_EQ(0, r) << "object_no=" << object_no;
throttle.end_op(r);
});
std::shared_lock owner_locker{ictx->owner_lock};
std::shared_lock image_locker{ictx->image_lock};
ASSERT_TRUE(ictx->object_map != nullptr);
if (!ictx->object_map->aio_update<
Context, &Context::complete>(CEPH_NOSNAP, object_no,
OBJECT_EXISTS, {}, {}, true,
ctx)) {
ctx->complete(0);
} else {
++cur_ios;
++ios;
}
coarse_mono_time now = coarse_mono_clock::now();
chrono::duration<double> elapsed = now - start;
if (last == chrono::duration<double>::zero()) {
last = elapsed;
} else if ((int)elapsed.count() != (int)last.count()) {
time_acc((elapsed - last).count());
ios_acc(static_cast<double>(cur_ios));
cur_ios = 0;
double time_sum = boost::accumulators::rolling_sum(time_acc);
std::cerr << std::setw(5) << (int)elapsed.count() << "\t"
<< std::setw(8) << (int)ios << "\t"
<< std::fixed << std::setw(8) << std::setprecision(2)
<< boost::accumulators::rolling_sum(ios_acc) / time_sum
<< std::endl;
last = elapsed;
}
}
ASSERT_EQ(0, throttle.wait_for_ret());
}
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