[GitHub] [incubator-doris] morningman opened a new issue #1940: Loading failed when upgrading Doris from 0.9.x to 0.10.x

[GitBox <gi...@apache.org>]

morningman opened a new issue #1940: Loading failed when upgrading Doris from 0.9.x to 0.10.x
URL: https://github.com/apache/incubator-doris/issues/1940
 
 
   **Describe the bug**
   be.INFO will show warning log like:
   
   ` tablet writer write failed, tablet_id=142863, transaction_id=94257624, status=-911`
   
   This is because in version 0.9.x, the alter task info saved in tablet meta may not be cleaned successfully, so the transaction may be added to same tablet twice and throw error code `-911`.
   
   **How to fix**
   
   There is no other way to clear the alter task info automatically. So I add a new `ALTER TABLE` clause:
   
   `ALTER TABLE tbl SET ("send_clear_alter_tasks" = "true");`
   
   This operation will send `ClearAlterTask` to all tablets of specified table to clear the alter task info in tablet meta.
   
   **NOTICE**
   This is only a temporary solution to this bug. And this operation SHOULD BE deprecated later. 
   

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