Commit f8862a05 authored by unknown's avatar unknown
Browse files

Merge mysql.com:/home/mydev/mysql-5.0

into  mysql.com:/home/mydev/mysql-5.0-bug11527

parents 6dcecacf 4a793fb6
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+20 −19
Original line number Diff line number Diff line
@@ -1647,19 +1647,20 @@ int do_sleep(struct st_query *query, my_bool real_sleep)
  char *p= query->first_argument;
  char *sleep_start, *sleep_end= query->end;
  double sleep_val;
  char *cmd = (real_sleep ? "real_sleep" : "sleep");

  while (my_isspace(charset_info, *p))
    p++;
  if (!*p)
    die("Missing argument to %s", cmd);
    die("Missing argument to %.*s", query->first_word_len, query->query);
  sleep_start= p;
  /* Check that arg starts with a digit, not handled by my_strtod */
  if (!my_isdigit(charset_info, *sleep_start))
    die("Invalid argument to %s \"%s\"", cmd, query->first_argument);
    die("Invalid argument to %.*s \"%s\"", query->first_word_len, query->query,
		query->first_argument);
  sleep_val= my_strtod(sleep_start, &sleep_end, &error);
  if (error)
    die("Invalid argument to %s \"%s\"", cmd, query->first_argument);
    die("Invalid argument to %.*s \"%s\"", query->first_word_len, query->query,
		query->first_argument);

  /* Fixed sleep time selected by --sleep option */
  if (opt_sleep && !real_sleep)
@@ -2529,8 +2530,8 @@ my_bool end_of_query(int c)
    size    size of the buffer i.e max size to read

  DESCRIPTION
    This function actually reads several lines an adds them to the
    buffer buf. It will continue to read until it finds what it believes
    This function actually reads several lines and adds them to the
    buffer buf. It continues to read until it finds what it believes
    is a complete query.

    Normally that means it will read lines until it reaches the
@@ -3760,7 +3761,7 @@ static void handle_no_error(struct st_query *q)
  command - currrent command pointer
  query - query string to execute
  query_len - length query string to execute
  ds - output buffer wherte to store result form query
  ds - output buffer where to store result form query

  RETURN VALUE
  error - function will not return
@@ -3778,7 +3779,7 @@ static void run_query_stmt(MYSQL *mysql, struct st_query *command,
  DBUG_PRINT("query", ("'%-.60s'", query));

  /*
    Init a new stmt if it's not alreday one created for this connectoon
    Init a new stmt if it's not already one created for this connection
  */
  if(!(stmt= cur_con->stmt))
  {
@@ -3867,7 +3868,7 @@ static void run_query_stmt(MYSQL *mysql, struct st_query *command,
    goto end;
  }

  /* If we got here the statement was both executed and read succeesfully */
  /* If we got here the statement was both executed and read successfully */
  handle_no_error(command);
  if (!disable_result_log)
  {
@@ -4594,7 +4595,7 @@ int main(int argc, char **argv)
      case Q_QUERY_HORIZONTAL:
      {
	my_bool old_display_result_vertically= display_result_vertically;
	/* fix up query pointer if this is * first iteration for this line */
	/* fix up query pointer if this is first iteration for this line */
	if (q->query == q->query_buf)
	  q->query += q->first_word_len + 1;
	display_result_vertically= (q->type==Q_QUERY_VERTICAL);
@@ -4639,15 +4640,15 @@ int main(int argc, char **argv)
      case Q_SEND:
	if (!q->query[q->first_word_len])
	{
	  /* This happens when we use 'send' on it's own line */
	  /* This happens when we use 'send' on its own line */
	  q_send_flag=1;
	  break;
	}
	/* fix up query pointer if this is * first iteration for this line */
	/* fix up query pointer if this is first iteration for this line */
	if (q->query == q->query_buf)
	  q->query += q->first_word_len;
	/*
	  run_query() can execute a query partially, depending on the flags
	  run_query() can execute a query partially, depending on the flags.
	  QUERY_SEND flag without QUERY_REAP tells it to just send the
	  query and read the result some time later when reap instruction
	  is given on this connection.
@@ -4731,7 +4732,7 @@ int main(int argc, char **argv)
        break;
      case Q_ENABLE_PARSING:
        /*
          Ensure we don't get parsing_disabled < 0 as this would accidently
          Ensure we don't get parsing_disabled < 0 as this would accidentally
          disable code we don't want to have disabled
        */
        if (parsing_disabled > 0)
@@ -4777,9 +4778,9 @@ int main(int argc, char **argv)
  start_lineno= 0;

  /*
    The whole test has been executed _sucessfully_
    Time to compare result or save it to record file
    The entire output from test is now kept in ds_res
    The whole test has been executed _sucessfully_.
    Time to compare result or save it to record file.
    The entire output from test is now kept in ds_res.
  */
  if (ds_res.length)
  {
@@ -5509,7 +5510,7 @@ static int get_next_bit(REP_SET *set,uint lastpos)
}

	/* find if there is a same set in sets. If there is, use it and
	   free given set, else put in given set in sets and return it's
	   free given set, else put in given set in sets and return its
	   position */

static int find_set(REP_SETS *sets,REP_SET *find)
@@ -5528,7 +5529,7 @@ static int find_set(REP_SETS *sets,REP_SET *find)

	/* find if there is a found_set with same table_offset & found_offset
	   If there is return offset to it, else add new offset and return pos.
	   Pos returned is -offset-2 in found_set_structure because it's is
	   Pos returned is -offset-2 in found_set_structure because it is
	   saved in set->next and set->next[] >= 0 points to next set and
	   set->next[] == -1 is reserved for end without replaces.
	   */
+59 −55
Original line number Diff line number Diff line
@@ -2,71 +2,75 @@
Overview
--------

Stress script is designed to perform testsing of mysql server in 
multi-thread environment. 

Stress script allows:
 
 - to use for stress testing mysqltest binary as test engine
 - to use for stress testing both regular test suite and any
   additional test suites (e.g. mysql-test-extra-5.0)
 - to specify files with lists of tests both for initialization of
   stress db and for further testing itself
 - to define number of threads that will be concurrently used in testing
 - to define limitations for test run. e.g. number of tests or loops
   for execution or duration of testing, delay between test executions, etc.
 - to get readable log file which can be used for identification of
   errors arose during testing

All functionality regarding stress testing was implemeted in 
mysql-stress-test.pl script and there are two ways to run stress test:

 - for most cases it is enough to use options below for starting of
   stress test from mysql-test-run wrapper. In this case server will 
   be run automatically, all preparation steps will be performed
   and after that stress test will be started.

 - in advanced case one can run mysql-stress-test.pl script directly. 
   But it requires to perform some preparation steps and to specify a 
   bunch of options as well so this way may look a bit complicate.
The stress script is designed to perform testing of the MySQL server in 
a multi-threaded environment. 

All functionality regarding stress testing is implemented in the
mysql-stress-test.pl script.

The stress script allows:
 
 - To stress test the mysqltest binary test engine.
 - To stress test the regular test suite and any additional test suites
   (such as mysql-test-extra-5.0).
 - To specify files with lists of tests both for initialization of
   stress db and for further testing itself.
 - To define the number of threads to be concurrently used in testing.
 - To define limitations for the test run. such as the number of tests or
   loops for execution or duration of testing, delay between test
   executions, and so forth.
 - To get a readable log file that can be used for identification of
   errors that occur during testing.

There are two ways to run the mysql-stress-test.pl script:

 - For most cases, it is enough to use the options below for starting
   the stress test from the mysql-test-run wrapper. In this case, the
   server is run automatically, all preparation steps are performed,
   and after that the stress test is started.

 - In advanced case, you can run the mysql-stress-test.pl script directly. 
   But this requires that you perform some preparation steps and to specify
   a bunch of options as well, so this invocation method may be a bit
   complicated.

Usage
-----

Below is list of stress test specific options for mysql-test-run:
The following mysql-test-run options are specific to stress-testing:

--stress 
  Enable stress mode

--stress-suite=<suite name>
  Test suite name that will be used in stress testing.
  We assume that all suites are located in mysql-test/suite directory
  Test suite name to use in stress testing.  We assume that all suites
  are located in the mysql-test/suite directory.
  There is one special suite name - <main|default> that corresponds
  to regular test suite located in mysql-test directory. 
  to the regular test suite located in the mysql-test directory. 
  
--stress-threads=<number of threads>
  Number of threads that will be used in stress testing
  The number of threads to use in stress testing.
  
--stress-tests-file=<filename with list of tests>
  Filename with list of tests(without .test suffix) that will be used in 
  stress testing. Default filename is stress_tests.txt and default 
  The file that contains the list of tests (without .test suffix) to use in 
  stress testing. The default filename is stress_tests.txt and the default 
  location of this file is suite/<suite name>/stress_tests.txt

--stress-init-file=<filename with list of tests>
  Filename with list of tests(without .test suffix) that will be used in 
  stress testing for initialization of stress db. These tests will be 
  executed only once before starting of test itself. Default filename 
  is stress_init.txt and default location of this file is 
  The file that contains list of tests (without .test suffix) to use in 
  stress testing for initialization of the stress db. These tests will be 
  executed only once before starting the test itself. The default filename 
  is stress_init.txt and the default location of this file is 
  suite/<suite name>/stress_init.txt

--stress-mode=<method which will be used for choosing tests from the list>
  Possible values are: random(default), seq 

  There are two possible modes which affect order of selecting of tests
  There are two possible modes that affect the order of test selection
  from the list:
    - in random mode tests will be selected in random order
    - in seq mode each thread will execute tests in the loop one by one as
      they specified in the list file.
    - In random mode, tests are selected in random order
    - In seq mode, each thread executes tests in a loop one by one in
	  the order specified in the list file.

--stress-test-count=<number>
  Total number of tests that will be executed concurrently by all threads
@@ -81,35 +85,35 @@ Below is list of stress test specific options for mysql-test-run:
Examples
-------- 

1. Example of simple command line to start stress test:
1. Example of a simple command line to start a stress test:

 mysql-test-run --stress alias

Runs stress test with default values for number of threads and number of tests,
with test 'alias' from suite 'main'.
Runs a stress test with default values for number of threads and number
of tests, with test 'alias' from suite 'main'.

2. Using in stress testing tests from other suites:

 - mysql-test-run --stress --stress-threads=10 --stress-test-count=1000 \
                 --stress-suite=example  --stress-tests-file=testslist.txt

   Will run stress test with 10 threads, will execute 1000 tests by all 
   threads, test will be used from suite 'example', list of test will be 
   Runs a stress test with 10 threads, executes 1000 tests by all 
   threads, tests are used from suite 'example', the list of tests is
   taken from file 'testslist.txt'

 - mysql-test-run --stress --stress-threads=10 --stress-test-count=1000 \
                  --stress-suite=example sum_distinct

   Will run stress test with 10 threads, will execute 1000 tests by all 
   threads, test will be used from suite 'example', list of test contains 
   only one test 'sum_distinct'
   Runs stress test with 10 threads, executes 1000 tests by all 
   threads, tests are used from suite 'example', the list of tests
   contains only one test 'sum_distinct'

3. Debugging of issues found with stress test

 Right now stress test is not fully integrated in mysql-test-run
 and does not support --gdb option so to debug issue found with stress 
 test you have to start separately mysql server under debuger and then 
 run stress test as:
 Right now, the stress test is not fully integrated in mysql-test-run
 and does not support the --gdb option. To debug issues found with the
 stress test, you must start the MySQL server separately under a debugger
 and then run the stress test like this:
 
 - mysql-test-run --extern --stress --stress-threads=10 \
                  --stress-test-count=1000 --stress-suite=example \
+11 −10
Original line number Diff line number Diff line
@@ -14,16 +14,17 @@
# 
# Design of stress script should allow one:
# 
#   - to use for stress testing mysqltest binary as test engine
#   - to use for stress testing both regular test suite and any
#     additional test suites (e.g. mysql-test-extra-5.0)
#   - to specify files with lists of tests both for initialization of
#     stress db and for further testing itself
#   - to define number of threads that will be concurrently used in testing
#   - to define limitations for test run. e.g. number of tests or loops
#     for execution or duration of testing, delay between test executions, etc.
#   - to get readable log file which can be used for identification of
#     errors arose during testing
#   - To stress test the mysqltest binary test engine.
#   - To stress test the regular test suite and any additional test suites
#     (such as mysql-test-extra-5.0).
#   - To specify files with lists of tests both for initialization of
#     stress db and for further testing itself.
#   - To define the number of threads to be concurrently used in testing.
#   - To define limitations for the test run. such as the number of tests or
#     loops for execution or duration of testing, delay between test
#     executions, and so forth.
#   - To get a readable log file that can be used for identification of
#     errors that occur during testing.
# 
# Basic scenarios:
# 
+56 −0
Original line number Diff line number Diff line
@@ -4801,4 +4801,60 @@ date_format(t3.d, pDateFormat) count(*)
2005-02	2
drop table t3|
drop procedure bug17476|
drop table if exists t3|
drop procedure if exists bug16887|
create table t3 ( c varchar(1) )|
insert into t3 values
(' '),('.'),(';'),(','),('-'),('_'),('('),(')'),('/'),('\\')|
create procedure bug16887()
begin
declare i int default 10;
again:
while i > 0 do
begin
declare breakchar varchar(1);
declare done int default 0;
declare t3_cursor cursor for select c from t3;
declare continue handler for not found set done = 1;
set i = i - 1;
select i;
if i = 3 then
iterate again;
end if;
open t3_cursor;
loop
fetch t3_cursor into breakchar;
if done = 1 then
begin
close t3_cursor;
iterate again;
end;
end if;
end loop;
end;
end while;
end|
call bug16887()|
i
9
i
8
i
7
i
6
i
5
i
4
i
3
i
2
i
1
i
0
drop table t3|
drop procedure bug16887|
drop table t1,t2;
+55 −0
Original line number Diff line number Diff line
@@ -5638,6 +5638,7 @@ drop function bug17615|
drop table t3|


#
# BUG#17476: Stored procedure not returning data when it is called first
#            time per connection
#
@@ -5662,6 +5663,60 @@ drop table t3|
drop procedure bug17476|


#
# BUG#16887: Cursor causes server segfault
#
--disable_warnings
drop table if exists t3|
drop procedure if exists bug16887|
--enable_warnings

create table t3 ( c varchar(1) )|

insert into t3 values
  (' '),('.'),(';'),(','),('-'),('_'),('('),(')'),('/'),('\\')|

create procedure bug16887()
begin
  declare i int default 10;

 again:
  while i > 0 do
  begin
    declare breakchar varchar(1);
    declare done int default 0;
    declare t3_cursor cursor for select c from t3;
    declare continue handler for not found set done = 1;

    set i = i - 1;
    select i;

    if i = 3 then
      iterate again;
    end if;

    open t3_cursor;

    loop
      fetch t3_cursor into breakchar;

      if done = 1 then
        begin
          close t3_cursor;
          iterate again;
        end;
      end if;
     end loop;
   end;
   end while;
end|

call bug16887()|

drop table t3|
drop procedure bug16887|


#
# BUG#NNNN: New bug synopsis
#
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