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| author | svoj@mysql.com/june.mysql.com <> | 2007-04-13 12:38:27 +0500 |
|---|---|---|
| committer | svoj@mysql.com/june.mysql.com <> | 2007-04-13 12:38:27 +0500 |
| commit | ed81a81a9ef3370d3260c9aebb79036831b866ef (patch) | |
| tree | 4e71fd10f53e58f29af50e0e05f819d7b8a8ae96 /mysql-test | |
| parent | c282dd3715e8be3e4a7753587e7b452b97ebbb85 (diff) | |
| download | mariadb-git-ed81a81a9ef3370d3260c9aebb79036831b866ef.tar.gz | |
BUG#27516 - divide by zero crash during optimize table
When a table status is requested by statement like SHOW TABLE
STATUS and there is another statement (e.g. DELETE) sets
number of records to 0 concurrently, we may get division by
zero error, which crashes a server.
This is fixed by using thread local variable x->records instead
of shared info->state->records when we check if it is zero and
divide by it.
Diffstat (limited to 'mysql-test')
| -rw-r--r-- | mysql-test/r/bdb_notembedded.result | 35 | ||||
| -rw-r--r-- | mysql-test/t/bdb_notembedded.test | 38 |
2 files changed, 73 insertions, 0 deletions
diff --git a/mysql-test/r/bdb_notembedded.result b/mysql-test/r/bdb_notembedded.result new file mode 100644 index 00000000000..14cb5fad915 --- /dev/null +++ b/mysql-test/r/bdb_notembedded.result @@ -0,0 +1,35 @@ +set autocommit=1; +reset master; +create table bug16206 (a int); +insert into bug16206 values(1); +start transaction; +insert into bug16206 values(2); +commit; +show binlog events; +Log_name Pos Event_type Server_id End_log_pos Info +f n Format_desc 1 n Server ver: VERSION, Binlog ver: 4 +f n Query 1 n use `test`; create table bug16206 (a int) +f n Query 1 n use `test`; insert into bug16206 values(1) +f n Query 1 n use `test`; insert into bug16206 values(2) +drop table bug16206; +reset master; +create table bug16206 (a int) engine= bdb; +insert into bug16206 values(0); +insert into bug16206 values(1); +start transaction; +insert into bug16206 values(2); +commit; +insert into bug16206 values(3); +show binlog events; +Log_name Pos Event_type Server_id End_log_pos Info +f n Format_desc 1 n Server ver: VERSION, Binlog ver: 4 +f n Query 1 n use `test`; create table bug16206 (a int) engine= bdb +f n Query 1 n use `test`; insert into bug16206 values(0) +f n Query 1 n use `test`; insert into bug16206 values(1) +f n Query 1 n use `test`; BEGIN +f n Query 1 n use `test`; insert into bug16206 values(2) +f n Query 1 n use `test`; COMMIT +f n Query 1 n use `test`; insert into bug16206 values(3) +drop table bug16206; +set autocommit=0; +End of 5.0 tests diff --git a/mysql-test/t/bdb_notembedded.test b/mysql-test/t/bdb_notembedded.test new file mode 100644 index 00000000000..24e64ebbfb2 --- /dev/null +++ b/mysql-test/t/bdb_notembedded.test @@ -0,0 +1,38 @@ +-- source include/not_embedded.inc +-- source include/have_bdb.inc + +# +# Bug #16206: Superfluous COMMIT event in binlog when updating BDB in autocommit mode +# +set autocommit=1; + +let $VERSION=`select version()`; + +reset master; +create table bug16206 (a int); +insert into bug16206 values(1); +start transaction; +insert into bug16206 values(2); +commit; +--replace_result $VERSION VERSION +--replace_column 1 f 2 n 5 n +show binlog events; +drop table bug16206; + +reset master; +create table bug16206 (a int) engine= bdb; +insert into bug16206 values(0); +insert into bug16206 values(1); +start transaction; +insert into bug16206 values(2); +commit; +insert into bug16206 values(3); +--replace_result $VERSION VERSION +--replace_column 1 f 2 n 5 n +show binlog events; +drop table bug16206; + +set autocommit=0; + + +--echo End of 5.0 tests |