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[opt] micro buffer writer

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This commit is contained in:
Hooper9973
2023-11-21 10:40:51 +00:00
committed by ob-robot
parent 1e7e728baf
commit 7dccad4b78
6 changed files with 126 additions and 110 deletions
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62
unittest/storage/blocksstable/encoding/test_raw_decoder.cpp
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@ -53,11 +53,13 @@ public:
int ObMicroBlockRawEncoder::build_block(char *&buf, int64_t &size)
{
int ret = OB_SUCCESS;
int64_t need_size = 0;
if (!is_inited_) {
int64_t encoders_need_size = 0;
const int64_t col_header_size = ctx_.column_cnt_ * (sizeof(ObColumnHeader));
char *encoding_meta_buf = nullptr;
if (IS_NOT_INIT) {
ret = OB_NOT_INIT;
LOG_WARN("not init", K(ret));
} else if (datum_rows_.empty()) {
} else if (OB_UNLIKELY(datum_rows_.empty())) {
ret = OB_INNER_STAT_ERROR;
LOG_WARN("empty micro block", K(ret));
} else if (OB_FAIL(set_datum_rows_ptr())) {
@ -66,11 +68,11 @@ int ObMicroBlockRawEncoder::build_block(char *&buf, int64_t &size)
LOG_WARN("pivot rows to columns failed", K(ret));
} else if (OB_FAIL(row_indexs_.reserve(datum_rows_.count()))) {
LOG_WARN("array reserve failed", K(ret), "count", datum_rows_.count());
} else if (OB_FAIL(encoder_detection(need_size))) {
} else if (OB_FAIL(encoder_detection(encoders_need_size))) {
LOG_WARN("detect column encoding failed", K(ret));
} else {
for (int64_t i = 0; i < ctx_.column_cnt_; ++i) {
encoders_need_size = 0;
for (int64_t i = 0; OB_SUCC(ret) && i < ctx_.column_cnt_; ++i) {
const bool force_var_store = false;
if (NULL != encoders_[i]) {
free_encoder(encoders_[i]);
@ -87,12 +89,36 @@ int ObMicroBlockRawEncoder::build_block(char *&buf, int64_t &size)
encoders_[i] = e;
}
}
for (int64_t i = 0; OB_SUCC(ret) && i < encoders_.count(); i++) {
int64_t need_size = 0;
if (OB_FAIL(encoders_.at(i)->get_encoding_store_meta_need_space(need_size))) {
STORAGE_LOG(WARN, "fail to get_encoding_store_meta_need_space", K(ret), K(i), K(encoders_));
} else {
need_size += encoders_.at(i)->calc_encoding_fix_data_need_space();
encoders_need_size += need_size;
}
}
}
if (OB_FAIL(ret)) {
} else if (OB_FAIL(data_buffer_.ensure_space(col_header_size + encoders_need_size))) {
STORAGE_LOG(WARN, "fail to ensure space", K(ret), K(data_buffer_));
} else if (OB_ISNULL(encoding_meta_buf = static_cast<char *>(encoding_meta_allocator_.alloc(encoders_need_size)))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
STORAGE_LOG(WARN, "fail to alloc fix header buf", K(ret), K(encoders_need_size));
} else {
STORAGE_LOG(DEBUG, "[debug] build micro block", K_(estimate_size), K_(header_size), K_(expand_pct),
K(datum_rows_.count()), K(ctx_));
// <1> store encoding metas and fix cols data
// <1> store encoding metas and fix cols data in encoding_meta_buffer
int64_t encoding_meta_offset = 0;
if (OB_FAIL(store_encoding_meta_and_fix_cols(encoding_meta_offset))) {
int64_t encoding_meta_size = 0;
ObBufferWriter meta_buf_writer(encoding_meta_buf, encoders_need_size, 0);
if (OB_FAIL(store_encoding_meta_and_fix_cols(meta_buf_writer, encoding_meta_offset))) {
LOG_WARN("failed to store encoding meta and fixed col data", K(ret));
} else if (FALSE_IT(encoding_meta_size = meta_buf_writer.length())) {
} else if (OB_FAIL(data_buffer_.write_nop(encoding_meta_size))) {
STORAGE_LOG(WARN, "failed to write nop", K(ret), K(meta_buf_writer), K(data_buffer_));
}
// <2> set row data store offset
@ -101,7 +127,7 @@ int ObMicroBlockRawEncoder::build_block(char *&buf, int64_t &size)
if (OB_FAIL(set_row_data_pos(fix_data_size))) {
LOG_WARN("set row data position failed", K(ret));
} else {
get_header(data_buffer_)->var_column_count_ = static_cast<int16_t>(var_data_encoders_.count());
get_header(data_buffer_)->var_column_count_ = static_cast<uint16_t>(var_data_encoders_.count());
}
}
@ -123,10 +149,12 @@ int ObMicroBlockRawEncoder::build_block(char *&buf, int64_t &size)
}
ObIntegerArrayGenerator gen;
const int64_t row_index_size = row_indexs_.count() * get_header(data_buffer_)->row_index_byte_;
if (OB_FAIL(gen.init(data_buffer_.data() + data_buffer_.length(), get_header(data_buffer_)->row_index_byte_))) {
if (OB_FAIL(data_buffer_.ensure_space(row_index_size))) {
STORAGE_LOG(WARN, "fail to ensure space", K(ret), K(row_index_size), K(data_buffer_));
} else if (OB_FAIL(gen.init(data_buffer_.data() + data_buffer_.length(), get_header(data_buffer_)->row_index_byte_))) {
LOG_WARN("init integer array generator failed",
K(ret), "byte", get_header(data_buffer_)->row_index_byte_);
} else if (OB_FAIL(data_buffer_.write_nop(row_index_size, true))) {
} else if (OB_FAIL(data_buffer_.write_nop(row_index_size))) {
LOG_WARN("advance data buffer failed", K(ret), K(row_index_size));
} else {
for (int64_t idx = 0; idx < row_indexs_.count(); ++idx) {
@ -136,19 +164,20 @@ int ObMicroBlockRawEncoder::build_block(char *&buf, int64_t &size)
}
}
// <5> fill header
// <5> fill header, encoding_meta and fix cols data
if (OB_SUCC(ret)) {
get_header(data_buffer_)->row_count_ = static_cast<int16_t>(datum_rows_.count());
get_header(data_buffer_)->row_count_ = static_cast<uint32_t>(datum_rows_.count());
get_header(data_buffer_)->has_string_out_row_ = has_string_out_row_;
get_header(data_buffer_)->all_lob_in_row_ = !has_lob_out_row_;
get_header(data_buffer_)->max_merged_trans_version_ = max_merged_trans_version_;
const int64_t header_size = get_header(data_buffer_)->header_size_;
char *data = data_buffer_.data() + header_size;
FOREACH(e, encoders_) {
MEMCPY(data, &(*e)->get_column_header(), sizeof(ObColumnHeader));
data += sizeof(ObColumnHeader);
}
// fill encoding meta and fix cols data
MEMCPY(data_buffer_.data() + encoding_meta_offset, encoding_meta_buf, encoding_meta_size);
}
if (OB_SUCC(ret)) {
@ -161,7 +190,7 @@ int ObMicroBlockRawEncoder::build_block(char *&buf, int64_t &size)
ObIColumnEncoder *e = encoders_.at(idx);
pe.type_ = static_cast<ObColumnHeader::Type>(e->get_column_header().type_);
if (ObColumnHeader::is_inter_column_encoder(pe.type_)) {
pe.ref_col_idx_ = static_cast<ObColumnEqualEncoder *>(e)->get_ref_col_idx();
pe.ref_col_idx_ = static_cast<ObSpanColumnEncoder *>(e)->get_ref_col_idx();
} else {
pe.ref_col_idx_ = 0;
}
@ -214,6 +243,7 @@ public:
decode_res_pool_ = new(allocator_.alloc(sizeof(ObDecodeResourcePool))) ObDecodeResourcePool;
tenant_ctx_.set(decode_res_pool_);
share::ObTenantEnv::set_tenant(&tenant_ctx_);
encoder_.encoding_meta_allocator_.set_tenant_id(OB_SERVER_TENANT_ID);
encoder_.data_buffer_.allocator_.set_tenant_id(OB_SERVER_TENANT_ID);
encoder_.row_buf_holder_.allocator_.set_tenant_id(OB_SERVER_TENANT_ID);
decode_res_pool_->init();