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[FEAT MERGE]Tiny SSTable Space Optimization

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This commit is contained in:
obdev
2022-12-01 02:40:29 +00:00
committed by ob-robot
parent ca1574a1ac
commit cda6fed9b5
71 changed files with 2175 additions and 239 deletions
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17
src/storage/access/ob_index_tree_prefetcher.cpp
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@ -296,11 +296,12 @@ int ObIndexTreePrefetcher::prefetch_block_data(
bool need_submit_io = false;
uint64_t tenant_id = MTL_ID();
const MacroBlockId &macro_id = index_block_info.get_macro_id();
const int64_t offset = index_block_info.get_block_offset();
if (is_rescan_ &&
tenant_id == micro_handle.tenant_id_ &&
macro_id == micro_handle.macro_block_id_ &&
index_block_info.row_header_->get_block_offset() == micro_handle.micro_info_.offset_ &&
offset == micro_handle.micro_info_.offset_ &&
index_block_info.row_header_->get_block_size() == micro_handle.micro_info_.size_) {
LOG_DEBUG("Cur micro handle is still valid");
if (is_data) {
@ -310,8 +311,7 @@ int ObIndexTreePrefetcher::prefetch_block_data(
}
} else if (OB_FAIL(micro_block_handle_mgr_.get_micro_block_handle(
tenant_id,
macro_id,
*index_block_info.row_header_,
index_block_info,
is_data,
micro_handle))) {
//cache miss
@ -332,7 +332,7 @@ int ObIndexTreePrefetcher::prefetch_block_data(
}
}
if (OB_SUCC(ret)) {
micro_handle.micro_info_.offset_ = index_block_info.get_block_offset();
micro_handle.micro_info_.offset_ = offset;
micro_handle.micro_info_.size_ = index_block_info.get_block_size();
if (need_submit_io) {
ObMacroBlockHandle macro_handle;
@ -508,7 +508,8 @@ int ObIndexTreeMultiPassPrefetcher::switch_context(
index_read_info_ = &index_read_info;
for (int64_t level = 0; OB_SUCC(ret) && level < index_tree_height_; level++) {
if (tree_handles_[level].index_scanner_.is_valid()) {
tree_handles_[level].index_scanner_.set_index_read_info(&index_read_info);
tree_handles_[level].index_scanner_.switch_context(
&index_read_info, sstable.get_macro_offset());
} else if (OB_FAIL(init_index_scanner(tree_handles_[level].index_scanner_))) {
LOG_WARN("Fail to init index_scanner", K(ret), K(level));
}
@ -609,7 +610,7 @@ int ObIndexTreeMultiPassPrefetcher::prefetch()
ret = OB_SUCCESS;
} else {
LOG_WARN("Fail to prefetch", K(ret));
}
}
}
return ret;
}
@ -1098,10 +1099,10 @@ int ObIndexTreeMultiPassPrefetcher::check_row_lock(
} else if (ObStoreRowIterator::IteratorRowLockCheck == iter_type_
&& !is_row_lock_checked) {
const int64_t read_snapshot_version = access_ctx_->trans_version_range_.snapshot_version_;
if (!index_info.contain_uncommitted_row()
if (!index_info.contain_uncommitted_row()
&& index_info.get_max_merged_trans_version() <= read_snapshot_version) {
++cur_range_fetch_idx_;
row_lock_check_version_ = index_info.get_max_merged_trans_version();
row_lock_check_version_ = index_info.get_max_merged_trans_version();
ret = OB_ITER_END;
}
is_row_lock_checked = true;