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  1. MariaDB Server
  2. MDEV-28943

Online alter fails under LOCK TABLE with ER_ALTER_OPERATION_NOT_SUPPORTED_REASON

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    Description

      create table t (f int);
      		 
      lock table t write;
      		 
      alter table t force, algorithm=copy, lock=none;
      		 
       
      		 
      # Cleanup
      		 
      drop table t;

      bb-10.10-MDEV-16329 cb1f08bd1c

      		 
      mysqltest: At line 3: query 'alter table t force, algorithm=copy, lock=none' failed: ER_ALTER_OPERATION_NOT_SUPPORTED_REASON (1846): LOCK=NONE is not supported. Reason: COPY algorithm requires a lock. Try LOCK=SHARED

      If it's expected, it needs to be documented.

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          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-29056 Replica SQL thread stops with 1846 error on ALTER ONLINE after LOCK WRITE

          • 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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              serg Sergei Golubchik
              elenst Elena Stepanova
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              Dates

                Created:
                Updated:
                Resolved:

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