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  1. WiredTiger
  2. WT-9356

We cannot evict mixed mode tombstone when checkpoint is running

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    • 3
    • Storage - Ra 2022-05-30

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          onpage_upd = upd_select->upd != NULL && upd_select->upd->type == WT_UPDATE_TOMBSTONE ?
            NULL :
            upd_select->upd;
       
          /* Check the update chain for conditions that could prevent it's eviction. */
          WT_RET(__rec_validate_upd_chain(session, r, onpage_upd, select_tw, vpack));
      

      When validating whether the update can be evicted or not, we intentionally bypass tombstone, which is wrong. If it a mixed mode tombstone, we cannot evict as well if checkpoint is running.

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              chenhao.qu@mongodb.com Chenhao Qu
              chenhao.qu@mongodb.com Chenhao Qu
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