Fix(2.3) bugs around compaction #1889
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…s in CompactIterator for better performance
Required checklist
config,meta/configanddefault config)api changelabel.Which issue does this PR close?
Related #.
Rationale for this change
Fix some bugs:
1. Errors in compact::chunk_merged_block();
There may be an error when chunking big blocks, this makes data lost.
2. Merge two tmp-fields in CompactIterator for better performance;
Merge
tmp_tsm_blk_meta_iters: Vec<BlockMetaIterator>andtmp_tsm_blk_tsm_reader_idx: Vec<usize>intotmp_tsm_blk_meta_iters: Vec<(usize, BlockMetaIterator)>.Are there any user-facing changes?