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  1. MariaDB Server
  2. MDEV-31033

ER_KEY_NOT_FOUND upon online COPY ALTER on a partitioned table

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    Description

      It appears that the "online" alter gets confused when concurrent DML moves rows between partitions.

      --source include/have_partition.inc
      		 
      --source include/have_debug_sync.inc
      		 
       
      		 
      create table t (a int) partition by hash(a) partitions 2;
      		 
      insert into t values (1),(3);
      		 
      set debug_sync= 'alter_table_online_progress WAIT_FOR goforit';
      		 
      --send
      		 
        alter table t force, algorithm=copy, lock=none;
      		 
       
      		 
      --connect (con1,localhost,root,,)
      		 
      update t set a = a + 1;
      		 
      set debug_sync= 'now SIGNAL goforit';
      		 
       
      		 
      --connection default
      		 
      --reap
      		 
       
      		 
      select * from t;
      		 
       
      		 
      # Cleanup
      		 
      set debug_sync= RESET;
      		 
      drop table t;

      bb-11.0-oalter 90cf6464fa

      		 
      mysqltest: At line 15: query 'reap' failed: ER_KEY_NOT_FOUND (1032): Can't find record in 't'

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          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-31040 Server crashes in MYSQL_LOG::is_open upon ALTER on partitioned table

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          includes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-31040 Server crashes in MYSQL_LOG::is_open upon ALTER on partitioned table

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          is caused by

          Task - A task that needs to be done. MDEV-16329 Engine-independent online ALTER TABLE

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed
          relates to

          Technical task - A technical task. MDEV-28808 Test MDEV-16329 (ALTER ONLINE TABLE) - Core server part

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

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              nikitamalyavin Nikita Malyavin
              elenst Elena Stepanova
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              Dates

                Created:
                Updated:
                Resolved:

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