Summary:
People hit three issues with D3914:
  - As per T2059, we applied a schema change from a `.php` patch, which currently does not work if you use a different user to make schema changes than for normal use.
    - Since the change in question is idempotent, just move it to a `.sql` patch. We'll follow up in T2059 and fix it properly.
  - Rogue daemons at several installs used old code (expecting autoincrement) to insert into the new table (no autoincrement), thereby creating tasks with ID 0.
    - Rename the table so they'll fail.
    - This also makes the code a little more consistent.
  - Some installs now have tasks with ID 0.
    - Use checks against null rather than against 0 so we can process these tasks.
The major issues this fixes are the schema upgrade failure in T2059, and the infinite loops in T2072 and elsewhere.
This isn't really a fully statisfactory fix. I'll discuss some next steps in T2072.
Test Plan: Created new tasks via MetaMTA/Differential. Ran tasks with `phd debug taskmaster`. Inserted a task 0 and verified it ran and archived correctly.
Reviewers: btrahan, vrana, nh
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2072, T2059
Differential Revision: https://secure.phabricator.com/D3973
		
	
		
			
				
	
	
		
			41 lines
		
	
	
		
			1023 B
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			41 lines
		
	
	
		
			1023 B
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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// Switch PhabricatorWorkerActiveTask from autoincrement IDs to counter IDs.
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// Set the initial counter ID to be larger than any known task ID.
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$active_table = new PhabricatorWorkerActiveTask();
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$archive_table = new PhabricatorWorkerArchiveTask();
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$old_table = 'worker_task';
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$conn_w = $active_table->establishConnection('w');
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$active_auto = head(queryfx_one(
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  $conn_w,
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  'SELECT auto_increment FROM information_schema.tables
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    WHERE table_name = %s
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    AND table_schema = DATABASE()',
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  $old_table));
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$active_max = head(queryfx_one(
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  $conn_w,
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  'SELECT MAX(id) FROM %T',
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  $old_table));
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$archive_max = head(queryfx_one(
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  $conn_w,
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  'SELECT MAX(id) FROM %T',
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  $archive_table->getTableName()));
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$initial_counter = max((int)$active_auto, (int)$active_max, (int)$archive_max);
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queryfx(
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  $conn_w,
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  'INSERT INTO %T (counterName, counterValue)
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    VALUES (%s, %d)
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    ON DUPLICATE KEY UPDATE counterValue = %d',
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  LiskDAO::COUNTER_TABLE_NAME,
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  $old_table,
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  $initial_counter + 1,
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  $initial_counter + 1);
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