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Patch for BUG#15934: im_daemon_life_cycle fails sporadically.

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The problem was a race condition in a test case.

The fix eliminates the race condition by explicit
wait on UNIX socket to start accepting connections.

The patch affects only test suite (i.e. does not touch
server codebase).
This commit is contained in:
anozdrin/alik@alik.
2006-10-03 18:42:59 +04:00
parent ef4285c0d2
commit d238bd6755
4 changed files with 75 additions and 0 deletions
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6
mysql-test/mysql-test-run.pl
View File

@ -1249,6 +1249,9 @@ sub environment_setup () {
$ENV{'IM_PATH_PID'}= $instance_manager->{path_pid};
$ENV{'IM_PATH_ANGEL_PID'}= $instance_manager->{path_angel_pid};
$ENV{'IM_PORT'}= $instance_manager->{port};
$ENV{'IM_PATH_SOCK'}= $instance_manager->{path_sock};
$ENV{'IM_USERNAME'}= $instance_manager->{admin_login};
$ENV{'IM_PASSWORD'}= $instance_manager->{admin_password};
$ENV{'IM_MYSQLD1_SOCK'}= $instance_manager->{instances}->[0]->{path_sock};
$ENV{'IM_MYSQLD1_PORT'}= $instance_manager->{instances}->[0]->{port};
@ -1257,6 +1260,9 @@ sub environment_setup () {
$ENV{'IM_MYSQLD2_PORT'}= $instance_manager->{instances}->[1]->{port};
$ENV{'IM_MYSQLD2_PATH_PID'}=$instance_manager->{instances}->[1]->{path_pid};
$ENV{'EXE_MYSQL'}= $exe_mysql;
$ENV{MTR_BUILD_THREAD}= 0 unless $ENV{MTR_BUILD_THREAD}; # Set if not set
# We are nice and report a bit about our settings

1
mysql-test/r/im_daemon_life_cycle.result
View File

@ -8,6 +8,7 @@ mysqld2 offline
Killing the process...
Sleeping...
Success: the process was restarted.
Success: server is ready to accept connection on socket.
--------------------------------------------------------------------
-- Test for BUG#12751

6
mysql-test/t/im_daemon_life_cycle.imtest
View File

@ -17,6 +17,12 @@
###########################################################################
# Wait for IM to start accepting connections.
--exec $MYSQL_TEST_DIR/t/wait_for_socket.sh $EXE_MYSQL $IM_PATH_SOCK $IM_USERNAME $IM_PASSWORD '' 30
###########################################################################
#
# BUG#12751: Instance Manager: client hangs
#

62
mysql-test/t/wait_for_socket.sh Executable file
View File

@ -0,0 +1,62 @@
#!/bin/sh
###########################################################################
if [ $# -ne 6 ]; then
echo "Usage: wait_for_socket.sh <executable path> <socket path> <username> <password> <db> <timeout>"
exit 0
fi
client_exe="$1"
socket_path="$2"
username="$3"
password="$4"
db="$5"
total_timeout="$6"
###########################################################################
if [ -z "$client_exe" ]; then
echo "Error: invalid path to client executable ($client_exe)."
exit 0;
fi
if [ ! -x "$client_exe" ]; then
echo "Error: client by path '$client_exe' is not available."
exit 0;
fi
if [ -z "$socket_path" ]; then
echo "Error: invalid socket patch."
exit 0
fi
###########################################################################
client_args="--silent --socket=$socket_path "
[ -n "$username" ] && client_args="$client_args --user=$username "
[ -n "$password" ] && client_args="$client_args --password=$password "
[ -n "$db" ] && client_args="$client_args $db"
###########################################################################
cur_attempt=1
while true; do
if ( echo 'quit' | "$client_exe" $client_args >/dev/null 2>&1 ); then
echo "Success: server is ready to accept connection on socket."
exit 0
fi
[ $cur_attempt -ge $total_timeout ] && break
sleep 1
cur_attempt=`expr $cur_attempt + 1`
done
echo "Error: server does not accept connections after $total_timeout seconds."
exit 0