(disagg.mode=switch) Clear snap repeats during test/format step down

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    • Type: Bug
    • Resolution: Unresolved
    • Priority: Major - P3
    • None
    • Affects Version/s: None
    • None

      A search mismatch failure is still present after WT-16955 fixes. This ticket aims to investigate what could be causing the problem.

      Error signature:

      table:T00001: WiredTiger trace ID: 16
      snapshot-isolation 0000070697.00/op search mismatch
      expected {0000070697/LMNOPQRSTUVWXYZABCDE}
         found {0000070697/LMNOPQRSTUVWXYZAB}
      snapshot-isolation error: dumping to RUNDIR/FAIL.pagedump.1
      [role change] follower -> leader
      [role change] leader -> follower
      --- [Follower] Picked up checkpoint (metadata=[metadata_lsn=64896,metadata_checksum=1615e4b5,database_size=235881642,version=1,compatible_version=1],timestamp(hex)=202ed2) ---
      [role change] follower -> leader
      [role change] leader -> follower
      --- [Follower] Picked up checkpoint (metadata=[metadata_lsn=98729,metadata_checksum=ab8ae367,database_size=269111893,version=1,compatible_version=1],timestamp(hex)=2d17de) ---
      t: FAILED: snap_verify_callback/294: 0
      

      Config:

      ############################################
      #  RUN PARAMETERS: V3
      ############################################
      assert.read_timestamp=0
      background_compact=0
      background_compact.free_space_target=68
      backup=0
      backup.incremental=off
      backup.incr_granularity=15385
      backup.live_restore=1
      backup.live_restore_read_size=32
      backup.live_restore_threads=2
      block_cache=0
      block_cache.cache_on_checkpoint=1
      block_cache.cache_on_writes=0
      block_cache.size=27
      cache=3072
      cache.evict_max=5
      cache.eviction_dirty_target=0
      cache.eviction_dirty_trigger=0
      cache.eviction_updates_target=0
      cache.eviction_updates_trigger=0
      cache.minimum=0
      cache.maximum=0
      checkpoint=on
      checkpoint.log_size=111
      checkpoint.wait=85
      chunk_cache=0
      chunk_cache.capacity=2046
      chunk_cache.chunk_size=5
      chunk_cache.storage_path=off
      chunk_cache.type=off
      compact.free_space_target=73
      debug.background_compact=0
      debug.checkpoint_retention=10
      debug.cursor_reposition=0
      debug.eviction=0
      debug.log_retention=3
      debug.realloc_exact=0
      debug.realloc_malloc=0
      debug.slow_checkpoint=0
      debug.table_logging=0
      debug.update_restore_evict=0
      disagg.internal_page_delta=1
      disagg.leaf_page_delta=1
      disagg.multi=0
      disagg.multi_validation=0
      disagg.enabled=1
      disagg.layered=1
      disagg.mode=switch
      disagg.page_log=palite
      disagg.key_provider=1
      disagg.page_log.verbose=0
      disagg.drain_threads=7
      disk.data_extend=0
      disk.encryption=none
      disk.mmap=1
      disk.mmap_all=0
      eviction.evict_use_softptr=0
      file_manager.close_handle_minimum=20
      file_manager.close_idle_time=45
      file_manager.close_scan_interval=7
      format.abort=0
      format.independent_thread_rng=1
      format.major_timeout=0
      import=0
      logging=0
      logging.compression=none
      logging.file_max=170926
      logging.prealloc=0
      logging.remove=1
      obsolete_cleanup.method=off
      obsolete_cleanup.wait=438
      ops.alter=0
      ops.compaction=0
      ops.hs_cursor=0
      ops.pct.modify=0
      ops.bound_cursor=0
      ops.prepare=0
      ops.random_cursor=0
      ops.salvage=0
      ops.throttle=0
      ops.throttle.sleep_us=457066
      ops.verify=1
      prefetch=1
      precise_checkpoint=1
      preserve_prepared=1
      quiet=1
      random.data_seed=13443704
      random.extra_seed=15348573
      rollback_to_stable_threads=2
      runs.in_memory=0
      runs.mirror=1
      runs.ops=0
      runs.predictable_replay=0
      runs.source=layered
      runs.tables=3
      runs.threads=32
      runs.timer=6
      runs.type=row-store
      runs.verify_failure_dump=0
      statistics.mode=fast
      statistics_log.sources=off
      stress.aggressive_stash_free=0
      stress.aggressive_sweep=0
      stress.checkpoint=0
      stress.checkpoint_evict_page=0
      stress.checkpoint_prepare=0
      stress.compact_slow=0
      stress.evict_reposition=0
      stress.failpoint_eviction_split=1
      stress.failpoint_hs_delete_key_from_ts=0
      stress.failpoint_rec_before_wrapup=0
      stress.hs_checkpoint_delay=0
      stress.hs_search=0
      stress.hs_sweep=0
      stress.prefetch_delay=0
      stress.prepare_resolution_1=0
      stress.sleep_before_read_overflow_onpage=0
      stress.split_1=0
      stress.split_2=0
      stress.split_3=0
      stress.split_4=0
      stress.split_5=0
      stress.split_6=0
      stress.split_7=0
      stress.split_8=0
      tiered_storage.flush_frequency=0
      tiered_storage.storage_source=off
      transaction.implicit=0
      transaction.operation_timeout_ms=2000
      transaction.timestamps=1
      wiredtiger.config=off
      wiredtiger.rwlock=1
      wiredtiger.leak_memory=0
      ############################################
      #  TABLE PARAMETERS: table 1
      ############################################
      table1.btree.compression=none
      table1.btree.dictionary=0
      table1.btree.internal_key_truncation=1
      table1.btree.internal_page_max=17
      table1.btree.key_max=85
      table1.btree.key_min=14
      table1.btree.leaf_page_max=12
      table1.btree.memory_page_max=6
      table1.btree.prefix_len=0
      table1.btree.prefix_compression=1
      table1.btree.prefix_compression_min=6
      table1.btree.reverse=0
      table1.btree.split_pct=73
      table1.btree.value_max=3746
      table1.btree.value_min=15
      table1.disagg.enabled=0
      table1.disk.checksum=on
      table1.disk.firstfit=0
      table1.ops.pareto=0
      table1.ops.pareto.skew=41
      table1.ops.pct.delete=38
      table1.ops.pct.insert=29
      table1.ops.pct.read=2
      table1.ops.pct.write=31
      table1.ops.truncate=1
      table1.runs.rows=103724
      table1.runs.source=table
      ############################################
      #  TABLE PARAMETERS: table 2
      ############################################
      table2.btree.compression=none
      table2.btree.dictionary=0
      table2.btree.internal_key_truncation=1
      table2.btree.internal_page_max=15
      table2.btree.key_max=92
      table2.btree.key_min=28
      table2.btree.leaf_page_max=11
      table2.btree.memory_page_max=1
      table2.btree.prefix_len=0
      table2.btree.prefix_compression=1
      table2.btree.prefix_compression_min=7
      table2.btree.reverse=0
      table2.btree.split_pct=53
      table2.btree.value_max=1626
      table2.btree.value_min=19
      table2.disk.checksum=on
      table2.disk.firstfit=0
      table2.ops.pareto=0
      table2.ops.pareto.skew=30
      table2.ops.pct.delete=10
      table2.ops.pct.insert=27
      table2.ops.pct.read=27
      table2.ops.pct.write=36
      table2.ops.truncate=1
      table2.runs.rows=103724
      ############################################
      #  TABLE PARAMETERS: table 3
      ############################################
      table3.btree.compression=none
      table3.btree.dictionary=0
      table3.btree.internal_key_truncation=1
      table3.btree.internal_page_max=14
      table3.btree.key_max=66
      table3.btree.key_min=19
      table3.btree.leaf_page_max=10
      table3.btree.memory_page_max=9
      table3.btree.prefix_len=0
      table3.btree.prefix_compression=1
      table3.btree.prefix_compression_min=5
      table3.btree.reverse=0
      table3.btree.split_pct=72
      table3.btree.value_max=3546
      table3.btree.value_min=1
      table3.disk.checksum=uncompressed
      table3.disk.firstfit=0
      table3.ops.pareto=1
      table3.ops.pareto.skew=12
      table3.ops.pct.delete=67
      table3.ops.pct.insert=30
      table3.ops.pct.read=0
      table3.ops.pct.write=3
      table3.ops.truncate=1
      table3.runs.rows=103724
      t: process aborting
      WiredTiger Error: __wt_abort, 29: aborting WiredTiger library
      
      

            Assignee:
            Jie Chen
            Reporter:
            Jie Chen
            Votes:
            0 Vote for this issue
            Watchers:
            3 Start watching this issue

              Created:
              Updated: