--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph distributed storage system
+ *
+ * Copyright (C) 2016 Mirantis Inc
+ *
+ * Author: Mykola Golub <mgolub@mirantis.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ */
+
+#include "include/rados/librados.hpp"
+#include "include/rbd/librbd.hpp"
+#include "include/stringify.h"
+#include "test/rbd_mirror/test_fixture.h"
+#include "cls/journal/cls_journal_types.h"
+#include "cls/journal/cls_journal_client.h"
+#include "cls/rbd/cls_rbd_types.h"
+#include "cls/rbd/cls_rbd_client.h"
+#include "journal/Journaler.h"
+#include "librbd/ExclusiveLock.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/ImageState.h"
+#include "librbd/Journal.h"
+#include "librbd/Operations.h"
+#include "librbd/Utils.h"
+#include "librbd/internal.h"
+#include "librbd/api/Mirror.h"
+#include "librbd/io/AioCompletion.h"
+#include "librbd/io/ImageRequestWQ.h"
+#include "librbd/io/ReadResult.h"
+#include "tools/rbd_mirror/types.h"
+#include "tools/rbd_mirror/ImageDeleter.h"
+#include "tools/rbd_mirror/ImageReplayer.h"
+#include "tools/rbd_mirror/InstanceWatcher.h"
+#include "tools/rbd_mirror/ServiceDaemon.h"
+#include "tools/rbd_mirror/Threads.h"
+
+#include "test/librados/test.h"
+#include "gtest/gtest.h"
+
+using rbd::mirror::RadosRef;
+
+void register_test_rbd_mirror() {
+}
+
+#define TEST_IO_SIZE 512
+#define TEST_IO_COUNT 11
+
+class TestImageReplayer : public ::rbd::mirror::TestFixture {
+public:
+ struct C_WatchCtx : public librados::WatchCtx2 {
+ TestImageReplayer *test;
+ std::string oid;
+ Mutex lock;
+ Cond cond;
+ bool notified;
+
+ C_WatchCtx(TestImageReplayer *test, const std::string &oid)
+ : test(test), oid(oid), lock("C_WatchCtx::lock"), notified(false) {
+ }
+
+ void handle_notify(uint64_t notify_id, uint64_t cookie,
+ uint64_t notifier_id, bufferlist& bl_) override {
+ bufferlist bl;
+ test->m_remote_ioctx.notify_ack(oid, notify_id, cookie, bl);
+
+ Mutex::Locker locker(lock);
+ notified = true;
+ cond.Signal();
+ }
+
+ void handle_error(uint64_t cookie, int err) override {
+ ASSERT_EQ(0, err);
+ }
+ };
+
+ TestImageReplayer()
+ : m_local_cluster(new librados::Rados()), m_watch_handle(0)
+ {
+ EXPECT_EQ("", connect_cluster_pp(*m_local_cluster.get()));
+ EXPECT_EQ(0, m_local_cluster->conf_set("rbd_cache", "false"));
+ EXPECT_EQ(0, m_local_cluster->conf_set("rbd_mirror_journal_poll_age", "1"));
+
+ m_local_pool_name = get_temp_pool_name();
+ EXPECT_EQ(0, m_local_cluster->pool_create(m_local_pool_name.c_str()));
+ EXPECT_EQ(0, m_local_cluster->ioctx_create(m_local_pool_name.c_str(),
+ m_local_ioctx));
+ m_local_ioctx.application_enable("rbd", true);
+
+ EXPECT_EQ("", connect_cluster_pp(m_remote_cluster));
+ EXPECT_EQ(0, m_remote_cluster.conf_set("rbd_cache", "false"));
+
+ m_remote_pool_name = get_temp_pool_name();
+ EXPECT_EQ(0, m_remote_cluster.pool_create(m_remote_pool_name.c_str()));
+ m_remote_pool_id = m_remote_cluster.pool_lookup(m_remote_pool_name.c_str());
+ EXPECT_GE(m_remote_pool_id, 0);
+
+ EXPECT_EQ(0, m_remote_cluster.ioctx_create(m_remote_pool_name.c_str(),
+ m_remote_ioctx));
+ m_remote_ioctx.application_enable("rbd", true);
+
+ EXPECT_EQ(0, librbd::api::Mirror<>::mode_set(m_remote_ioctx,
+ RBD_MIRROR_MODE_POOL));
+
+ m_image_name = get_temp_image_name();
+ uint64_t features = librbd::util::get_rbd_default_features(g_ceph_context);
+ features |= RBD_FEATURE_EXCLUSIVE_LOCK | RBD_FEATURE_JOURNALING;
+ int order = 0;
+ EXPECT_EQ(0, librbd::create(m_remote_ioctx, m_image_name.c_str(), 1 << 22,
+ false, features, &order, 0, 0));
+ m_remote_image_id = get_image_id(m_remote_ioctx, m_image_name);
+ m_global_image_id = get_global_image_id(m_remote_ioctx, m_remote_image_id);
+
+ m_threads.reset(new rbd::mirror::Threads<>(reinterpret_cast<CephContext*>(
+ m_local_ioctx.cct())));
+
+ m_service_daemon.reset(new rbd::mirror::ServiceDaemon<>(g_ceph_context,
+ m_local_cluster,
+ m_threads.get()));
+ m_image_deleter.reset(new rbd::mirror::ImageDeleter<>(
+ m_threads->work_queue, m_threads->timer, &m_threads->timer_lock,
+ m_service_daemon.get()));
+ m_instance_watcher = rbd::mirror::InstanceWatcher<>::create(
+ m_local_ioctx, m_threads->work_queue, nullptr);
+ m_instance_watcher->handle_acquire_leader();
+ }
+
+ ~TestImageReplayer() override
+ {
+ unwatch();
+
+ m_instance_watcher->handle_release_leader();
+
+ delete m_replayer;
+ delete m_instance_watcher;
+
+ EXPECT_EQ(0, m_remote_cluster.pool_delete(m_remote_pool_name.c_str()));
+ EXPECT_EQ(0, m_local_cluster->pool_delete(m_local_pool_name.c_str()));
+ }
+
+ template <typename ImageReplayerT = rbd::mirror::ImageReplayer<> >
+ void create_replayer() {
+ m_replayer = new ImageReplayerT(
+ m_threads.get(), m_image_deleter.get(), m_instance_watcher,
+ rbd::mirror::RadosRef(new librados::Rados(m_local_ioctx)),
+ m_local_mirror_uuid, m_local_ioctx.get_id(), m_global_image_id);
+ m_replayer->add_peer("peer uuid", m_remote_ioctx);
+ }
+
+ void start()
+ {
+ C_SaferCond cond;
+ m_replayer->start(&cond);
+ ASSERT_EQ(0, cond.wait());
+
+ ASSERT_EQ(0U, m_watch_handle);
+ std::string oid = ::journal::Journaler::header_oid(m_remote_image_id);
+ m_watch_ctx = new C_WatchCtx(this, oid);
+ ASSERT_EQ(0, m_remote_ioctx.watch2(oid, &m_watch_handle, m_watch_ctx));
+ }
+
+ void unwatch() {
+ if (m_watch_handle != 0) {
+ m_remote_ioctx.unwatch2(m_watch_handle);
+ delete m_watch_ctx;
+ m_watch_ctx = nullptr;
+ m_watch_handle = 0;
+ }
+ }
+
+ void stop()
+ {
+ unwatch();
+
+ C_SaferCond cond;
+ m_replayer->stop(&cond);
+ ASSERT_EQ(0, cond.wait());
+ }
+
+ void bootstrap()
+ {
+ create_replayer<>();
+
+ start();
+ wait_for_replay_complete();
+ stop();
+ }
+
+ std::string get_temp_image_name()
+ {
+ return "image" + stringify(++_image_number);
+ }
+
+ std::string get_image_id(librados::IoCtx &ioctx, const string &image_name)
+ {
+ std::string obj = librbd::util::id_obj_name(image_name);
+ std::string id;
+ EXPECT_EQ(0, librbd::cls_client::get_id(&ioctx, obj, &id));
+ return id;
+ }
+
+ std::string get_global_image_id(librados::IoCtx& io_ctx,
+ const std::string& image_id) {
+ cls::rbd::MirrorImage mirror_image;
+ EXPECT_EQ(0, librbd::cls_client::mirror_image_get(&io_ctx, image_id,
+ &mirror_image));
+ return mirror_image.global_image_id;
+ }
+
+ void open_image(librados::IoCtx &ioctx, const std::string &image_name,
+ bool readonly, librbd::ImageCtx **ictxp)
+ {
+ librbd::ImageCtx *ictx = new librbd::ImageCtx(image_name.c_str(),
+ "", "", ioctx, readonly);
+ EXPECT_EQ(0, ictx->state->open(false));
+ *ictxp = ictx;
+ }
+
+ void open_local_image(librbd::ImageCtx **ictxp)
+ {
+ open_image(m_local_ioctx, m_image_name, true, ictxp);
+ }
+
+ void open_remote_image(librbd::ImageCtx **ictxp)
+ {
+ open_image(m_remote_ioctx, m_image_name, false, ictxp);
+ }
+
+ void close_image(librbd::ImageCtx *ictx)
+ {
+ ictx->state->close();
+ }
+
+ void get_commit_positions(cls::journal::ObjectPosition *master_position,
+ cls::journal::ObjectPosition *mirror_position)
+ {
+ std::string master_client_id = "";
+ std::string mirror_client_id = m_local_mirror_uuid;
+
+ C_SaferCond cond;
+ uint64_t minimum_set;
+ uint64_t active_set;
+ std::set<cls::journal::Client> registered_clients;
+ std::string oid = ::journal::Journaler::header_oid(m_remote_image_id);
+ cls::journal::client::get_mutable_metadata(m_remote_ioctx, oid,
+ &minimum_set, &active_set,
+ ®istered_clients, &cond);
+ ASSERT_EQ(0, cond.wait());
+
+ *master_position = cls::journal::ObjectPosition();
+ *mirror_position = cls::journal::ObjectPosition();
+
+ std::set<cls::journal::Client>::const_iterator c;
+ for (c = registered_clients.begin(); c != registered_clients.end(); ++c) {
+ std::cout << __func__ << ": client: " << *c << std::endl;
+ if (c->state != cls::journal::CLIENT_STATE_CONNECTED) {
+ continue;
+ }
+ cls::journal::ObjectPositions object_positions =
+ c->commit_position.object_positions;
+ cls::journal::ObjectPositions::const_iterator p =
+ object_positions.begin();
+ if (p != object_positions.end()) {
+ if (c->id == master_client_id) {
+ ASSERT_EQ(cls::journal::ObjectPosition(), *master_position);
+ *master_position = *p;
+ } else if (c->id == mirror_client_id) {
+ ASSERT_EQ(cls::journal::ObjectPosition(), *mirror_position);
+ *mirror_position = *p;
+ }
+ }
+ }
+ }
+
+ bool wait_for_watcher_notify(int seconds)
+ {
+ if (m_watch_handle == 0) {
+ return false;
+ }
+
+ Mutex::Locker locker(m_watch_ctx->lock);
+ while (!m_watch_ctx->notified) {
+ if (m_watch_ctx->cond.WaitInterval(m_watch_ctx->lock,
+ utime_t(seconds, 0)) != 0) {
+ return false;
+ }
+ }
+ m_watch_ctx->notified = false;
+ return true;
+ }
+
+ void wait_for_replay_complete()
+ {
+ cls::journal::ObjectPosition master_position;
+ cls::journal::ObjectPosition mirror_position;
+
+ for (int i = 0; i < 100; i++) {
+ printf("m_replayer->flush()\n");
+ C_SaferCond cond;
+ m_replayer->flush(&cond);
+ ASSERT_EQ(0, cond.wait());
+ get_commit_positions(&master_position, &mirror_position);
+ if (master_position == mirror_position) {
+ break;
+ }
+ wait_for_watcher_notify(1);
+ }
+
+ ASSERT_EQ(master_position, mirror_position);
+ }
+
+ void wait_for_stopped() {
+ for (int i = 0; i < 100; i++) {
+ if (m_replayer->is_stopped()) {
+ break;
+ }
+ wait_for_watcher_notify(1);
+ }
+ ASSERT_TRUE(m_replayer->is_stopped());
+ }
+
+ void write_test_data(librbd::ImageCtx *ictx, const char *test_data, off_t off,
+ size_t len)
+ {
+ size_t written;
+ bufferlist bl;
+ bl.append(std::string(test_data, len));
+ written = ictx->io_work_queue->write(off, len, std::move(bl), 0);
+ printf("wrote: %d\n", (int)written);
+ ASSERT_EQ(len, written);
+ }
+
+ void read_test_data(librbd::ImageCtx *ictx, const char *expected, off_t off,
+ size_t len)
+ {
+ ssize_t read;
+ char *result = (char *)malloc(len + 1);
+
+ ASSERT_NE(static_cast<char *>(NULL), result);
+ read = ictx->io_work_queue->read(
+ off, len, librbd::io::ReadResult{result, len}, 0);
+ printf("read: %d\n", (int)read);
+ ASSERT_EQ(len, static_cast<size_t>(read));
+ result[len] = '\0';
+ if (memcmp(result, expected, len)) {
+ printf("read: %s\nexpected: %s\n", result, expected);
+ ASSERT_EQ(0, memcmp(result, expected, len));
+ }
+ free(result);
+ }
+
+ void generate_test_data() {
+ for (int i = 0; i < TEST_IO_SIZE; ++i) {
+ m_test_data[i] = (char) (rand() % (126 - 33) + 33);
+ }
+ m_test_data[TEST_IO_SIZE] = '\0';
+ }
+
+ void flush(librbd::ImageCtx *ictx)
+ {
+ C_SaferCond aio_flush_ctx;
+ auto c = librbd::io::AioCompletion::create(&aio_flush_ctx);
+ c->get();
+ ictx->io_work_queue->aio_flush(c);
+ ASSERT_EQ(0, c->wait_for_complete());
+ c->put();
+
+ C_SaferCond journal_flush_ctx;
+ ictx->journal->flush_commit_position(&journal_flush_ctx);
+ ASSERT_EQ(0, journal_flush_ctx.wait());
+
+ printf("flushed\n");
+ }
+
+ static int _image_number;
+
+ std::shared_ptr<librados::Rados> m_local_cluster;
+ std::unique_ptr<rbd::mirror::Threads<>> m_threads;
+ std::unique_ptr<rbd::mirror::ServiceDaemon<>> m_service_daemon;
+ std::unique_ptr<rbd::mirror::ImageDeleter<>> m_image_deleter;
+ librados::Rados m_remote_cluster;
+ rbd::mirror::InstanceWatcher<> *m_instance_watcher;
+ std::string m_local_mirror_uuid = "local mirror uuid";
+ std::string m_remote_mirror_uuid = "remote mirror uuid";
+ std::string m_local_pool_name, m_remote_pool_name;
+ librados::IoCtx m_local_ioctx, m_remote_ioctx;
+ std::string m_image_name;
+ int64_t m_remote_pool_id;
+ std::string m_remote_image_id;
+ std::string m_global_image_id;
+ rbd::mirror::ImageReplayer<> *m_replayer;
+ C_WatchCtx *m_watch_ctx;
+ uint64_t m_watch_handle;
+ char m_test_data[TEST_IO_SIZE + 1];
+};
+
+int TestImageReplayer::_image_number;
+
+TEST_F(TestImageReplayer, Bootstrap)
+{
+ bootstrap();
+}
+
+TEST_F(TestImageReplayer, BootstrapErrorLocalImageExists)
+{
+ int order = 0;
+ EXPECT_EQ(0, librbd::create(m_local_ioctx, m_image_name.c_str(), 1 << 22,
+ false, 0, &order, 0, 0));
+
+ create_replayer<>();
+ C_SaferCond cond;
+ m_replayer->start(&cond);
+ ASSERT_EQ(-EEXIST, cond.wait());
+}
+
+TEST_F(TestImageReplayer, BootstrapErrorNoJournal)
+{
+ ASSERT_EQ(0, librbd::Journal<>::remove(m_remote_ioctx, m_remote_image_id));
+
+ create_replayer<>();
+ C_SaferCond cond;
+ m_replayer->start(&cond);
+ ASSERT_EQ(-ENOENT, cond.wait());
+}
+
+TEST_F(TestImageReplayer, BootstrapErrorMirrorDisabled)
+{
+ // disable remote image mirroring
+ ASSERT_EQ(0, librbd::api::Mirror<>::mode_set(m_remote_ioctx,
+ RBD_MIRROR_MODE_IMAGE));
+ librbd::ImageCtx *ictx;
+ open_remote_image(&ictx);
+ ASSERT_EQ(0, librbd::api::Mirror<>::image_disable(ictx, true));
+ close_image(ictx);
+
+ create_replayer<>();
+ C_SaferCond cond;
+ m_replayer->start(&cond);
+ ASSERT_EQ(-ENOENT, cond.wait());
+}
+
+TEST_F(TestImageReplayer, BootstrapMirrorDisabling)
+{
+ // set remote image mirroring state to DISABLING
+ ASSERT_EQ(0, librbd::api::Mirror<>::mode_set(m_remote_ioctx,
+ RBD_MIRROR_MODE_IMAGE));
+ librbd::ImageCtx *ictx;
+ open_remote_image(&ictx);
+ ASSERT_EQ(0, librbd::api::Mirror<>::image_enable(ictx, false));
+ cls::rbd::MirrorImage mirror_image;
+ ASSERT_EQ(0, librbd::cls_client::mirror_image_get(&m_remote_ioctx, ictx->id,
+ &mirror_image));
+ mirror_image.state = cls::rbd::MirrorImageState::MIRROR_IMAGE_STATE_DISABLING;
+ ASSERT_EQ(0, librbd::cls_client::mirror_image_set(&m_remote_ioctx, ictx->id,
+ mirror_image));
+ close_image(ictx);
+
+ create_replayer<>();
+ C_SaferCond cond;
+ m_replayer->start(&cond);
+ ASSERT_EQ(-EREMOTEIO, cond.wait());
+ ASSERT_TRUE(m_replayer->is_stopped());
+}
+
+TEST_F(TestImageReplayer, BootstrapDemoted)
+{
+ // demote remote image
+ librbd::ImageCtx *ictx;
+ open_remote_image(&ictx);
+ ASSERT_EQ(0, librbd::api::Mirror<>::image_demote(ictx));
+ close_image(ictx);
+
+ create_replayer<>();
+ C_SaferCond cond;
+ m_replayer->start(&cond);
+ ASSERT_EQ(-EREMOTEIO, cond.wait());
+ ASSERT_TRUE(m_replayer->is_stopped());
+}
+
+TEST_F(TestImageReplayer, StartInterrupted)
+{
+ create_replayer<>();
+ C_SaferCond start_cond, stop_cond;
+ m_replayer->start(&start_cond);
+ m_replayer->stop(&stop_cond);
+ int r = start_cond.wait();
+ printf("start returned %d\n", r);
+ // TODO: improve the test to avoid this race
+ ASSERT_TRUE(r == -ECANCELED || r == 0);
+ ASSERT_EQ(0, stop_cond.wait());
+}
+
+TEST_F(TestImageReplayer, JournalReset)
+{
+ bootstrap();
+ delete m_replayer;
+
+ ASSERT_EQ(0, librbd::Journal<>::reset(m_remote_ioctx, m_remote_image_id));
+
+ // try to recover
+ bootstrap();
+}
+
+TEST_F(TestImageReplayer, ErrorNoJournal)
+{
+ bootstrap();
+
+ // disable remote journal journaling
+ // (reset before disabling, so it does not fail with EBUSY)
+ ASSERT_EQ(0, librbd::Journal<>::reset(m_remote_ioctx, m_remote_image_id));
+ librbd::ImageCtx *ictx;
+ open_remote_image(&ictx);
+ uint64_t features;
+ ASSERT_EQ(0, librbd::get_features(ictx, &features));
+ ASSERT_EQ(0, ictx->operations->update_features(RBD_FEATURE_JOURNALING,
+ false));
+ close_image(ictx);
+
+ C_SaferCond cond;
+ m_replayer->start(&cond);
+ ASSERT_EQ(0, cond.wait());
+}
+
+TEST_F(TestImageReplayer, StartStop)
+{
+ bootstrap();
+
+ start();
+ wait_for_replay_complete();
+ stop();
+}
+
+TEST_F(TestImageReplayer, WriteAndStartReplay)
+{
+ bootstrap();
+
+ // Write to remote image and start replay
+
+ librbd::ImageCtx *ictx;
+
+ generate_test_data();
+ open_remote_image(&ictx);
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+ close_image(ictx);
+
+ start();
+ wait_for_replay_complete();
+ stop();
+
+ open_local_image(&ictx);
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ read_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ close_image(ictx);
+}
+
+TEST_F(TestImageReplayer, StartReplayAndWrite)
+{
+ bootstrap();
+
+ // Start replay and write to remote image
+
+ librbd::ImageCtx *ictx;
+
+ start();
+
+ generate_test_data();
+ open_remote_image(&ictx);
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+
+ wait_for_replay_complete();
+
+ for (int i = TEST_IO_COUNT; i < 2 * TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+ close_image(ictx);
+
+ wait_for_replay_complete();
+
+ open_local_image(&ictx);
+ for (int i = 0; i < 2 * TEST_IO_COUNT; ++i) {
+ read_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ close_image(ictx);
+
+ stop();
+}
+
+TEST_F(TestImageReplayer, NextTag)
+{
+ bootstrap();
+
+ // write, reopen, and write again to test switch to the next tag
+
+ librbd::ImageCtx *ictx;
+
+ start();
+
+ generate_test_data();
+
+ const int N = 10;
+
+ for (int j = 0; j < N; j++) {
+ open_remote_image(&ictx);
+ for (int i = j * TEST_IO_COUNT; i < (j + 1) * TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ close_image(ictx);
+ }
+
+ wait_for_replay_complete();
+
+ open_local_image(&ictx);
+ for (int i = 0; i < N * TEST_IO_COUNT; ++i) {
+ read_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ close_image(ictx);
+
+ stop();
+}
+
+TEST_F(TestImageReplayer, Resync)
+{
+ bootstrap();
+
+ librbd::ImageCtx *ictx;
+
+ start();
+
+ generate_test_data();
+
+ open_remote_image(&ictx);
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+
+ wait_for_replay_complete();
+
+ for (int i = TEST_IO_COUNT; i < 2 * TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+ close_image(ictx);
+
+ C_SaferCond ctx;
+ m_replayer->resync_image(&ctx);
+ ASSERT_EQ(0, ctx.wait());
+
+ C_SaferCond delete_ctx;
+ m_image_deleter->wait_for_scheduled_deletion(
+ m_local_ioctx.get_id(), m_replayer->get_global_image_id(), &delete_ctx);
+ EXPECT_EQ(0, delete_ctx.wait());
+
+ C_SaferCond cond;
+ m_replayer->start(&cond);
+ ASSERT_EQ(0, cond.wait());
+
+ ASSERT_TRUE(m_replayer->is_replaying());
+
+ wait_for_replay_complete();
+
+ open_local_image(&ictx);
+ for (int i = 0; i < 2 * TEST_IO_COUNT; ++i) {
+ read_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ close_image(ictx);
+
+ stop();
+}
+
+TEST_F(TestImageReplayer, Resync_While_Stop)
+{
+
+ bootstrap();
+
+ start();
+
+ generate_test_data();
+
+ librbd::ImageCtx *ictx;
+ open_remote_image(&ictx);
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+
+ wait_for_replay_complete();
+
+ for (int i = TEST_IO_COUNT; i < 2 * TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+ close_image(ictx);
+
+ wait_for_replay_complete();
+
+ C_SaferCond cond;
+ m_replayer->stop(&cond);
+ ASSERT_EQ(0, cond.wait());
+
+ open_local_image(&ictx);
+ librbd::Journal<>::request_resync(ictx);
+ close_image(ictx);
+
+ C_SaferCond cond2;
+ m_replayer->start(&cond2);
+ ASSERT_EQ(0, cond2.wait());
+
+ ASSERT_TRUE(m_replayer->is_stopped());
+
+ C_SaferCond delete_ctx;
+ m_image_deleter->wait_for_scheduled_deletion(
+ m_local_ioctx.get_id(), m_replayer->get_global_image_id(), &delete_ctx);
+ EXPECT_EQ(0, delete_ctx.wait());
+
+ C_SaferCond cond3;
+ m_replayer->start(&cond3);
+ ASSERT_EQ(0, cond3.wait());
+
+ ASSERT_TRUE(m_replayer->is_replaying());
+
+ wait_for_replay_complete();
+
+ open_local_image(&ictx);
+ for (int i = 0; i < 2 * TEST_IO_COUNT; ++i) {
+ read_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ close_image(ictx);
+
+ stop();
+}
+
+TEST_F(TestImageReplayer, Resync_StartInterrupted)
+{
+
+ bootstrap();
+
+ librbd::ImageCtx *ictx;
+ open_local_image(&ictx);
+ librbd::Journal<>::request_resync(ictx);
+ close_image(ictx);
+
+ C_SaferCond cond;
+ m_replayer->start(&cond);
+ ASSERT_EQ(0, cond.wait());
+
+ ASSERT_TRUE(m_replayer->is_stopped());
+
+ C_SaferCond delete_ctx;
+ m_image_deleter->wait_for_scheduled_deletion(
+ m_local_ioctx.get_id(), m_replayer->get_global_image_id(), &delete_ctx);
+ EXPECT_EQ(0, delete_ctx.wait());
+
+ C_SaferCond cond2;
+ m_replayer->start(&cond2);
+ ASSERT_EQ(0, cond2.wait());
+
+ ASSERT_EQ(0U, m_watch_handle);
+ std::string oid = ::journal::Journaler::header_oid(m_remote_image_id);
+ m_watch_ctx = new C_WatchCtx(this, oid);
+ ASSERT_EQ(0, m_remote_ioctx.watch2(oid, &m_watch_handle, m_watch_ctx));
+
+ ASSERT_TRUE(m_replayer->is_replaying());
+
+ generate_test_data();
+ open_remote_image(&ictx);
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+
+ wait_for_replay_complete();
+
+ for (int i = TEST_IO_COUNT; i < 2 * TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+ close_image(ictx);
+
+ wait_for_replay_complete();
+
+ open_local_image(&ictx);
+ for (int i = 0; i < 2 * TEST_IO_COUNT; ++i) {
+ read_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ close_image(ictx);
+
+ stop();
+}
+
+TEST_F(TestImageReplayer, MultipleReplayFailures_SingleEpoch) {
+ bootstrap();
+
+ // inject a snapshot that cannot be unprotected
+ librbd::ImageCtx *ictx;
+ open_image(m_local_ioctx, m_image_name, false, &ictx);
+ ictx->features &= ~RBD_FEATURE_JOURNALING;
+ ASSERT_EQ(0, ictx->operations->snap_create(cls::rbd::UserSnapshotNamespace(),
+ "foo"));
+ ASSERT_EQ(0, ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(),
+ "foo"));
+ ASSERT_EQ(0, librbd::cls_client::add_child(&ictx->md_ctx, RBD_CHILDREN,
+ {ictx->md_ctx.get_id(),
+ ictx->id,
+ ictx->snap_ids[{cls::rbd::UserSnapshotNamespace(), "foo"}]},
+ "dummy child id"));
+ close_image(ictx);
+
+ // race failed op shut down with new ops
+ open_remote_image(&ictx);
+ for (uint64_t i = 0; i < 10; ++i) {
+ RWLock::RLocker owner_locker(ictx->owner_lock);
+ C_SaferCond request_lock;
+ ictx->exclusive_lock->acquire_lock(&request_lock);
+ ASSERT_EQ(0, request_lock.wait());
+
+ C_SaferCond append_ctx;
+ ictx->journal->append_op_event(
+ i,
+ librbd::journal::EventEntry{
+ librbd::journal::SnapUnprotectEvent{i,
+ cls::rbd::UserSnapshotNamespace(),
+ "foo"}},
+ &append_ctx);
+ ASSERT_EQ(0, append_ctx.wait());
+
+ C_SaferCond commit_ctx;
+ ictx->journal->commit_op_event(i, 0, &commit_ctx);
+ ASSERT_EQ(0, commit_ctx.wait());
+
+ C_SaferCond release_ctx;
+ ictx->exclusive_lock->release_lock(&release_ctx);
+ ASSERT_EQ(0, release_ctx.wait());
+ }
+
+ for (uint64_t i = 0; i < 5; ++i) {
+ start();
+ wait_for_stopped();
+ unwatch();
+ }
+ close_image(ictx);
+}
+
+TEST_F(TestImageReplayer, MultipleReplayFailures_MultiEpoch) {
+ bootstrap();
+
+ // inject a snapshot that cannot be unprotected
+ librbd::ImageCtx *ictx;
+ open_image(m_local_ioctx, m_image_name, false, &ictx);
+ ictx->features &= ~RBD_FEATURE_JOURNALING;
+ ASSERT_EQ(0, ictx->operations->snap_create(cls::rbd::UserSnapshotNamespace(),
+ "foo"));
+ ASSERT_EQ(0, ictx->operations->snap_protect(cls::rbd::UserSnapshotNamespace(),
+ "foo"));
+ ASSERT_EQ(0, librbd::cls_client::add_child(&ictx->md_ctx, RBD_CHILDREN,
+ {ictx->md_ctx.get_id(),
+ ictx->id,
+ ictx->snap_ids[{cls::rbd::UserSnapshotNamespace(),
+ "foo"}]},
+ "dummy child id"));
+ close_image(ictx);
+
+ // race failed op shut down with new tag flush
+ open_remote_image(&ictx);
+ {
+ RWLock::RLocker owner_locker(ictx->owner_lock);
+ C_SaferCond request_lock;
+ ictx->exclusive_lock->acquire_lock(&request_lock);
+ ASSERT_EQ(0, request_lock.wait());
+
+ C_SaferCond append_ctx;
+ ictx->journal->append_op_event(
+ 1U,
+ librbd::journal::EventEntry{
+ librbd::journal::SnapUnprotectEvent{1U,
+ cls::rbd::UserSnapshotNamespace(),
+ "foo"}},
+ &append_ctx);
+ ASSERT_EQ(0, append_ctx.wait());
+
+ C_SaferCond commit_ctx;
+ ictx->journal->commit_op_event(1U, 0, &commit_ctx);
+ ASSERT_EQ(0, commit_ctx.wait());
+
+ C_SaferCond release_ctx;
+ ictx->exclusive_lock->release_lock(&release_ctx);
+ ASSERT_EQ(0, release_ctx.wait());
+ }
+
+ generate_test_data();
+ write_test_data(ictx, m_test_data, 0, TEST_IO_SIZE);
+
+ for (uint64_t i = 0; i < 5; ++i) {
+ start();
+ wait_for_stopped();
+ unwatch();
+ }
+ close_image(ictx);
+}
+
+TEST_F(TestImageReplayer, Disconnect)
+{
+ bootstrap();
+
+ // Make sure rbd_mirroring_resync_after_disconnect is not set
+ EXPECT_EQ(0, m_local_cluster->conf_set("rbd_mirroring_resync_after_disconnect", "false"));
+
+ // Test start fails if disconnected
+
+ librbd::ImageCtx *ictx;
+
+ generate_test_data();
+ open_remote_image(&ictx);
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+ close_image(ictx);
+
+ std::string oid = ::journal::Journaler::header_oid(m_remote_image_id);
+ ASSERT_EQ(0, cls::journal::client::client_update_state(m_remote_ioctx, oid,
+ m_local_mirror_uuid, cls::journal::CLIENT_STATE_DISCONNECTED));
+
+ C_SaferCond cond1;
+ m_replayer->start(&cond1);
+ ASSERT_EQ(-ENOTCONN, cond1.wait());
+
+ // Test start succeeds after resync
+
+ open_local_image(&ictx);
+ librbd::Journal<>::request_resync(ictx);
+ close_image(ictx);
+ C_SaferCond cond2;
+ m_replayer->start(&cond2);
+ ASSERT_EQ(0, cond2.wait());
+ C_SaferCond delete_cond;
+ m_image_deleter->wait_for_scheduled_deletion(
+ m_local_ioctx.get_id(), m_replayer->get_global_image_id(), &delete_cond);
+ EXPECT_EQ(0, delete_cond.wait());
+
+ start();
+ wait_for_replay_complete();
+
+ // Test replay stopped after disconnect
+
+ open_remote_image(&ictx);
+ for (int i = TEST_IO_COUNT; i < 2 * TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+ close_image(ictx);
+
+ ASSERT_EQ(0, cls::journal::client::client_update_state(m_remote_ioctx, oid,
+ m_local_mirror_uuid, cls::journal::CLIENT_STATE_DISCONNECTED));
+ bufferlist bl;
+ ASSERT_EQ(0, m_remote_ioctx.notify2(oid, bl, 5000, NULL));
+
+ wait_for_stopped();
+
+ // Test start fails after disconnect
+
+ C_SaferCond cond3;
+ m_replayer->start(&cond3);
+ ASSERT_EQ(-ENOTCONN, cond3.wait());
+ C_SaferCond cond4;
+ m_replayer->start(&cond4);
+ ASSERT_EQ(-ENOTCONN, cond4.wait());
+
+ // Test automatic resync if rbd_mirroring_resync_after_disconnect is set
+
+ EXPECT_EQ(0, m_local_cluster->conf_set("rbd_mirroring_resync_after_disconnect", "true"));
+
+ // Resync is flagged on first start attempt
+ C_SaferCond cond5;
+ m_replayer->start(&cond5);
+ ASSERT_EQ(-ENOTCONN, cond5.wait());
+ C_SaferCond delete_cond1;
+ m_image_deleter->wait_for_scheduled_deletion(
+ m_local_ioctx.get_id(), m_replayer->get_global_image_id(), &delete_cond1);
+ EXPECT_EQ(0, delete_cond1.wait());
+
+ C_SaferCond cond6;
+ m_replayer->start(&cond6);
+ ASSERT_EQ(0, cond6.wait());
+ wait_for_replay_complete();
+
+ stop();
+}
+
+TEST_F(TestImageReplayer, UpdateFeatures)
+{
+ const uint64_t FEATURES_TO_UPDATE =
+ RBD_FEATURE_OBJECT_MAP | RBD_FEATURE_FAST_DIFF;
+
+ uint64_t features;
+ librbd::ImageCtx *ictx;
+
+ // Make sure the features we will update are disabled initially
+
+ open_remote_image(&ictx);
+ ASSERT_EQ(0, librbd::get_features(ictx, &features));
+ features &= FEATURES_TO_UPDATE;
+ if (features) {
+ ASSERT_EQ(0, ictx->operations->update_features(FEATURES_TO_UPDATE,
+ false));
+ }
+ ASSERT_EQ(0, librbd::get_features(ictx, &features));
+ ASSERT_EQ(0U, features & FEATURES_TO_UPDATE);
+ close_image(ictx);
+
+ bootstrap();
+
+ open_remote_image(&ictx);
+ ASSERT_EQ(0, librbd::get_features(ictx, &features));
+ ASSERT_EQ(0U, features & FEATURES_TO_UPDATE);
+ close_image(ictx);
+
+ open_local_image(&ictx);
+ ASSERT_EQ(0, librbd::get_features(ictx, &features));
+ ASSERT_EQ(0U, features & FEATURES_TO_UPDATE);
+ close_image(ictx);
+
+ // Start replay and update features
+
+ start();
+
+ open_remote_image(&ictx);
+ ASSERT_EQ(0, ictx->operations->update_features(FEATURES_TO_UPDATE,
+ true));
+ ASSERT_EQ(0, librbd::get_features(ictx, &features));
+ ASSERT_EQ(FEATURES_TO_UPDATE, features & FEATURES_TO_UPDATE);
+ close_image(ictx);
+
+ wait_for_replay_complete();
+
+ open_local_image(&ictx);
+ ASSERT_EQ(0, librbd::get_features(ictx, &features));
+ ASSERT_EQ(FEATURES_TO_UPDATE, features & FEATURES_TO_UPDATE);
+ close_image(ictx);
+
+ open_remote_image(&ictx);
+ ASSERT_EQ(0, ictx->operations->update_features(FEATURES_TO_UPDATE,
+ false));
+ ASSERT_EQ(0, librbd::get_features(ictx, &features));
+ ASSERT_EQ(0U, features & FEATURES_TO_UPDATE);
+ close_image(ictx);
+
+ wait_for_replay_complete();
+
+ open_local_image(&ictx);
+ ASSERT_EQ(0, librbd::get_features(ictx, &features));
+ ASSERT_EQ(0U, features & FEATURES_TO_UPDATE);
+ close_image(ictx);
+
+ // Test update_features error does not stop replication
+
+ open_remote_image(&ictx);
+ ASSERT_EQ(0, librbd::get_features(ictx, &features));
+ ASSERT_NE(0U, features & RBD_FEATURE_EXCLUSIVE_LOCK);
+ ASSERT_EQ(-EINVAL, ictx->operations->update_features(RBD_FEATURE_EXCLUSIVE_LOCK,
+ false));
+ generate_test_data();
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+ close_image(ictx);
+
+ wait_for_replay_complete();
+
+ open_local_image(&ictx);
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ read_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ close_image(ictx);
+
+ stop();
+}
+
+TEST_F(TestImageReplayer, MetadataSetRemove)
+{
+ const std::string KEY = "test_key";
+ const std::string VALUE = "test_value";
+
+ librbd::ImageCtx *ictx;
+ std::string value;
+
+ bootstrap();
+
+ start();
+
+ // Test metadata_set replication
+
+ open_remote_image(&ictx);
+ ASSERT_EQ(0, ictx->operations->metadata_set(KEY, VALUE));
+ value.clear();
+ ASSERT_EQ(0, librbd::metadata_get(ictx, KEY, &value));
+ ASSERT_EQ(VALUE, value);
+ close_image(ictx);
+
+ wait_for_replay_complete();
+
+ open_local_image(&ictx);
+ value.clear();
+ ASSERT_EQ(0, librbd::metadata_get(ictx, KEY, &value));
+ ASSERT_EQ(VALUE, value);
+ close_image(ictx);
+
+ // Test metadata_remove replication
+
+ open_remote_image(&ictx);
+ ASSERT_EQ(0, ictx->operations->metadata_remove(KEY));
+ ASSERT_EQ(-ENOENT, librbd::metadata_get(ictx, KEY, &value));
+ close_image(ictx);
+
+ wait_for_replay_complete();
+
+ open_local_image(&ictx);
+ ASSERT_EQ(-ENOENT, librbd::metadata_get(ictx, KEY, &value));
+ close_image(ictx);
+
+ stop();
+}
+
+TEST_F(TestImageReplayer, MirroringDelay)
+{
+ const double DELAY = 10; // set less than wait_for_replay_complete timeout
+
+ librbd::ImageCtx *ictx;
+ utime_t start_time;
+ double delay;
+
+ bootstrap();
+
+ ASSERT_EQ(0, m_local_cluster->conf_set("rbd_mirroring_replay_delay",
+ stringify(DELAY).c_str()));
+ open_local_image(&ictx);
+ ASSERT_EQ(DELAY, ictx->mirroring_replay_delay);
+ close_image(ictx);
+
+ start();
+
+ // Test delay
+
+ generate_test_data();
+ open_remote_image(&ictx);
+ start_time = ceph_clock_now();
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ flush(ictx);
+ close_image(ictx);
+
+ wait_for_replay_complete();
+ delay = ceph_clock_now() - start_time;
+ ASSERT_GE(delay, DELAY);
+
+ // Test stop when delaying replay
+
+ open_remote_image(&ictx);
+ start_time = ceph_clock_now();
+ for (int i = 0; i < TEST_IO_COUNT; ++i) {
+ write_test_data(ictx, m_test_data, TEST_IO_SIZE * i, TEST_IO_SIZE);
+ }
+ close_image(ictx);
+
+ sleep(DELAY / 2);
+ stop();
+ start();
+
+ wait_for_replay_complete();
+ delay = ceph_clock_now() - start_time;
+ ASSERT_GE(delay, DELAY);
+
+ stop();
+}
Code Review / stor4nfv.git / blobdiff