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MDEV-28433 : Server crashes when wsrep_sst_donor and wsrep_cluster_address set to NULL

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Do not allow setting wsrep_sst_donor as NULL as it is
incorrect value. User can use value '' (default) that represents
same as NULL. Setting wsrep_cluster_address to NULL is
already handled correctly.

Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>
This commit is contained in:
Jan Lindström
2023-05-03 08:29:38 +03:00
committed by Julius Goryavsky
parent 7d55eb00f3
commit f102b595e8
5 changed files with 81 additions and 4 deletions
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9
sql/wsrep_sst.cc
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@ -299,6 +299,15 @@ void wsrep_sst_auth_init ()
bool wsrep_sst_donor_check (sys_var *self, THD* thd, set_var* var)
{
if ((! var->save_result.string_value.str) ||
(var->save_result.string_value.length > (FN_REFLEN -1))) // safety
{
my_error(ER_WRONG_VALUE_FOR_VAR, MYF(0), var->var->name.str,
var->save_result.string_value.str ?
var->save_result.string_value.str : "NULL");
return 1;
}
return 0;
}