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Bug #18828: If InnoDB runs out of undo slots, it returns misleading 'table is full' This is a backport of code already in 5.1+. The error message change referred to in the detailed revision comments is still pending. Detailed revision comments: r3937 | calvin | 2009-01-15 03:11:56 +0200 (Thu, 15 Jan 2009) | 17 lines branches/5.0: Backport the fix for Bug#18828. Return DB_TOO_MANY_CONCURRENT_TRXS when we run out of UNDO slots in the rollback segment. The backport is requested by MySQL under bug#41529 - Safe handling of InnoDB running out of undo log slots. This is a partial fix since the MySQL error code requested to properly report the error condition back to the client has not yet materialized. Currently we have #ifdef'd the error code translation in ha_innodb.cc. This will have to be changed as and when MySQl add the new requested code or an equivalent code that we can then use. Given the above, currently we will get the old behavior, not the "fixed" and intended behavior. Approved by: Heikki (on IM) |
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