Note read errors
parent
35a6ed728d
commit
95396e2c83
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@ -22,7 +22,18 @@ journal_flusher_t::journal_flusher_t(int flusher_count, blockstore *bs)
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journal_flusher_co::journal_flusher_co()
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{
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wait_state = 0;
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simple_callback = [this](ring_data_t* data)
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simple_callback_r = [this](ring_data_t* data)
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{
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if (data->res != data->iov.iov_len)
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{
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throw std::runtime_error(
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"data read operation failed during flush ("+std::to_string(data->res)+" != "+std::to_string(data->iov.iov_len)+
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"). can't continue, sorry :-("
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);
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}
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wait_count--;
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};
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simple_callback_w = [this](ring_data_t* data)
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{
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if (data->res != data->iov.iov_len)
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{
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@ -184,7 +195,7 @@ resume_0:
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await_sqe(1);
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it = v.insert(it, (copy_buffer_t){ .offset = offset, .len = submit_len, .buf = memalign(512, submit_len) });
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data->iov = (struct iovec){ v.back().buf, (size_t)submit_len };
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data->callback = simple_callback;
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data->callback = simple_callback_r;
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my_uring_prep_readv(
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sqe, bs->journal.fd, &data->iov, 1, bs->journal.offset + dirty_it->second.location + offset - dirty_it->second.offset
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);
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@ -285,7 +296,7 @@ resume_0:
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{
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throw std::runtime_error(
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"metadata read operation failed ("+std::to_string(data->res)+" != "+std::to_string(data->iov.iov_len)+
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"). in-memory state is corrupted. AAAAAAAaaaaaaaaa!!!111"
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"). can't continue, sorry :-("
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);
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}
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meta_it->second.state = 1;
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@ -309,7 +320,7 @@ resume_0:
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{
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await_sqe(4);
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data->iov = (struct iovec){ it->buf, (size_t)it->len };
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data->callback = simple_callback;
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data->callback = simple_callback_w;
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my_uring_prep_writev(
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sqe, bs->data_fd, &data->iov, 1, bs->data_offset + clean_loc + it->offset
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);
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@ -331,7 +342,7 @@ resume_0:
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// BUT it requires that journal entries even older than clean_db are replayed after restart
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await_sqe(6);
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data->iov = (struct iovec){ meta_it->second.buf, 512 };
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data->callback = simple_callback;
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data->callback = simple_callback_w;
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my_uring_prep_writev(
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sqe, bs->meta_fd, &data->iov, 1, bs->meta_offset + meta_sector
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);
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@ -369,14 +380,14 @@ resume_0:
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{
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// Sync batch is ready. Do it.
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await_sqe(9);
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data->callback = simple_callback;
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data->callback = simple_callback_w;
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data->iov = { 0 };
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my_uring_prep_fsync(sqe, bs->data_fd, IORING_FSYNC_DATASYNC);
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wait_count++;
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if (bs->meta_fd != bs->data_fd)
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{
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await_sqe(10);
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data->callback = simple_callback;
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data->callback = simple_callback_w;
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data->iov = { 0 };
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my_uring_prep_fsync(sqe, bs->meta_fd, IORING_FSYNC_DATASYNC);
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wait_count++;
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@ -482,7 +493,7 @@ resume_0:
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#endif
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// Update journal "superblock"
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await_sqe(12);
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data->callback = simple_callback;
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data->callback = simple_callback_w;
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*((journal_entry_start*)flusher->journal_superblock) = {
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.crc32 = 0,
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.magic = JOURNAL_MAGIC,
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@ -37,7 +37,7 @@ class journal_flusher_co
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std::map<uint64_t, meta_sector_t>::iterator meta_it;
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std::map<object_id, uint64_t>::iterator repeat_it;
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std::map<uint64_t, uint64_t>::iterator journal_used_it;
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std::function<void(ring_data_t*)> simple_callback;
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std::function<void(ring_data_t*)> simple_callback_r, simple_callback_w;
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std::list<flusher_sync_t>::iterator cur_sync;
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friend class journal_flusher_t;
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public:
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