set global innodb_commit_concurrency=0; ERROR HY000: Incorrect arguments to SET select @@innodb_commit_concurrency; @@innodb_commit_concurrency 1 set global innodb_commit_concurrency=1; select @@innodb_commit_concurrency; @@innodb_commit_concurrency 1 set global innodb_commit_concurrency=42; select @@innodb_commit_concurrency; @@innodb_commit_concurrency 42 set global innodb_commit_concurrency=DEFAULT; select @@innodb_commit_concurrency; @@innodb_commit_concurrency 1 set global innodb_commit_concurrency=0; ERROR HY000: Incorrect arguments to SET select @@innodb_commit_concurrency; @@innodb_commit_concurrency 1 set global innodb_commit_concurrency=1; select @@innodb_commit_concurrency; @@innodb_commit_concurrency 1