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PS-5844 Memory leak after 'innodb.alter_crash' - in 'prepare_inplace_… #3597

Merged
merged 1 commit into from
Jan 14, 2020
Merged

PS-5844 Memory leak after 'innodb.alter_crash' - in 'prepare_inplace_… #3597

merged 1 commit into from
Jan 14, 2020

Commits on Jan 14, 2020

  1. PS-5844 Memory leak after 'innodb.alter_crash' - in 'prepare_inplace_… 

    …alter_table_dict()'

The problem
If online alter fails to allocate undo log, heap memory allocated to
index object won't be freed. This can be simulated by using debug point
'ib_create_table_fail_too_many_trx' prior to an alter table.

Solution
Prior to set index pointer to null, call dict_mem_index_free to
correctly free memory objects allocated by the index.
    @altmannmarcelo
    altmannmarcelo committed Jan 14, 2020
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