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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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5
mysql-test/suite/sys_vars/t/wsrep_sst_donor_basic.test
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@@ -27,7 +27,7 @@ SET @@global.wsrep_sst_donor='hyphenated-donor-name';
SELECT @@global.wsrep_sst_donor;
SET @@global.wsrep_sst_donor=default;
SELECT @@global.wsrep_sst_donor;
SET @@global.wsrep_sst_donor=NULL;
SET @@global.wsrep_sst_donor='';
SELECT @@global.wsrep_sst_donor;
--echo
@@ -35,6 +35,9 @@ SELECT @@global.wsrep_sst_donor;
--error ER_WRONG_TYPE_FOR_VAR
SET @@global.wsrep_sst_donor=1;
SELECT @@global.wsrep_sst_donor;
--error ER_WRONG_VALUE_FOR_VAR
SET @@global.wsrep_sst_donor=NULL;
SELECT @@global.wsrep_sst_donor;
--echo
--echo # restore the initial value