Details
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Bug
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Status: In Progress (View Workflow)
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Critical
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Resolution: Unresolved
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10.4, 10.5, 10.6, 10.7, 10.8, 10.9, 10.11, 11.0, 11.1, 11.2, 10.11.4
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None
Description
--source include/have_log_bin.inc
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RESET MASTER;
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--error ER_WRONG_VALUE_FOR_VAR
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SET
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@@global.gtid_binlog_state='1-1-101,2-1-2002', |
@@global.slave_parallel_mode=x; |
SELECT @@global.gtid_binlog_state; |
***Warnings generated in error logs during shutdown after running tests: main.AAA
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Warning: Memory not freed: 224
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Warning: 40 bytes lost at 0x45fa260, allocated by T@0 at sql/sys_vars.cc:2120, sql/set_var.cc:246, sql/set_var.cc:810, sql/set_var.cc:738, sql/sql_parse.cc:5040, sql/sql_parse.cc:8023, sql/sql_parse.cc:1896, sql/sql_parse.cc:1407
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Warning: 184 bytes lost at 0x7f71481b7790, allocated by T@0 at mysys/my_malloc.c:143, sql/rpl_gtid.cc:1359, sql/sys_vars.cc:2114, sql/set_var.cc:246, sql/set_var.cc:810, sql/set_var.cc:738, sql/sql_parse.cc:5040, sql/sql_parse.cc:8023
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Warning: 152 bytes lost at 0x409c760, allocated by T@0 at mysys/array.c:73, mysys/hash.c:99, sql/sql_hset.h:37, sql/debug_sync.cc:90, sql/debug_sync.cc:166, sql/debug_sync.cc:1808, ??:0, csu/libc-start.c:268
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Warning: 40 bytes lost at 0x45fa260, allocated by T@0 at sql/sys_vars.cc:2120, sql/set_var.cc:246, sql/set_var.cc:810, sql/set_var.cc:738, sql/sql_parse.cc:5040, sql/sql_parse.cc:8023, sql/sql_parse.cc:1896, sql/sql_parse.cc:1407
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Warning: 184 bytes lost at 0x7f71481b7790, allocated by T@0 at mysys/my_malloc.c:143, sql/rpl_gtid.cc:1359, sql/sys_vars.cc:2114, sql/set_var.cc:246, sql/set_var.cc:810, sql/set_var.cc:738, sql/sql_parse.cc:5040, sql/sql_parse.cc:8023
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The leaked memory is allocated in Sys_var_gtid_binlog_state::do_check() in this code:
if (!(data= (gtid_binlog_state_data *)my_malloc(PSI_INSTRUMENT_ME,
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sizeof(*data), MYF(0))))
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{
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The problem happens because:
- The @@global.gtid_binlog_state='1-1-101,2-1-2002' part of the statement allocated memory and assigns it to var->save_result.ptr
- The @@global.slave_parallel_mode=x part fails on an error (wrong value)
- The entire statement fails
- The allocated value in var->save_result.ptr is never freed during the statement cleanup