diff options
Diffstat (limited to 'heartbeat/mysql-common.sh')
| -rwxr-xr-x | heartbeat/mysql-common.sh | 332 |
1 files changed, 332 insertions, 0 deletions
diff --git a/heartbeat/mysql-common.sh b/heartbeat/mysql-common.sh new file mode 100755 index 0000000..d6b4e3c --- /dev/null +++ b/heartbeat/mysql-common.sh @@ -0,0 +1,332 @@ +#!/bin/sh + +####################################################################### + +# Use runuser if available for SELinux. +if [ -x /sbin/runuser ]; then + SU=runuser +else + SU=su +fi + +# Attempt to detect a default binary +OCF_RESKEY_binary_default=$(which mysqld_safe 2> /dev/null) +if [ "$OCF_RESKEY_binary_default" = "" ]; then + OCF_RESKEY_binary_default=$(which safe_mysqld 2> /dev/null) +fi + +# Fill in some defaults if no values are specified +HOSTOS=`uname` +if [ "X${HOSTOS}" = "XOpenBSD" ];then + if [ "$OCF_RESKEY_binary_default" = "" ]; then + OCF_RESKEY_binary_default="/usr/local/bin/mysqld_safe" + fi + OCF_RESKEY_config_default="/etc/my.cnf" + OCF_RESKEY_datadir_default="/var/mysql" + OCF_RESKEY_user_default="_mysql" + OCF_RESKEY_group_default="_mysql" + OCF_RESKEY_log_default="/var/log/mysqld.log" + OCF_RESKEY_pid_default="/var/mysql/mysqld.pid" + OCF_RESKEY_socket_default="/var/run/mysql/mysql.sock" +else + if [ "$OCF_RESKEY_binary_default" = "" ]; then + OCF_RESKEY_binary_default="/usr/bin/safe_mysqld" + fi + OCF_RESKEY_config_default="/etc/my.cnf" + OCF_RESKEY_datadir_default="/var/lib/mysql" + OCF_RESKEY_user_default="mysql" + OCF_RESKEY_group_default="mysql" + OCF_RESKEY_log_default="/var/log/mysqld.log" + OCF_RESKEY_pid_default="/var/run/mysql/mysqld.pid" + OCF_RESKEY_socket_default="/var/lib/mysql/mysql.sock" +fi +OCF_RESKEY_client_binary_default="mysql" +OCF_RESKEY_test_user_default="root" +OCF_RESKEY_test_table_default="mysql.user" +OCF_RESKEY_test_passwd_default="" +OCF_RESKEY_enable_creation_default=0 +OCF_RESKEY_additional_parameters_default="" +OCF_RESKEY_replication_user_default="root" +OCF_RESKEY_replication_passwd_default="" +OCF_RESKEY_replication_port_default="3306" +OCF_RESKEY_replication_require_ssl_default="false" +OCF_RESKEY_replication_master_ssl_ca_default="" +OCF_RESKEY_replication_master_ssl_cert_default="" +OCF_RESKEY_replication_master_ssl_key_default="" +OCF_RESKEY_max_slave_lag_default="3600" +OCF_RESKEY_evict_outdated_slaves_default="false" +OCF_RESKEY_reader_attribute_default="readable" + +: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}} +MYSQL_BINDIR=`dirname ${OCF_RESKEY_binary}` + +: ${OCF_RESKEY_client_binary=${OCF_RESKEY_client_binary_default}} + +: ${OCF_RESKEY_config=${OCF_RESKEY_config_default}} +: ${OCF_RESKEY_datadir=${OCF_RESKEY_datadir_default}} + +: ${OCF_RESKEY_user=${OCF_RESKEY_user_default}} +: ${OCF_RESKEY_group=${OCF_RESKEY_group_default}} + +: ${OCF_RESKEY_log=${OCF_RESKEY_log_default}} +: ${OCF_RESKEY_pid=${OCF_RESKEY_pid_default}} +: ${OCF_RESKEY_socket=${OCF_RESKEY_socket_default}} + +: ${OCF_RESKEY_test_user=${OCF_RESKEY_test_user_default}} +: ${OCF_RESKEY_test_table=${OCF_RESKEY_test_table_default}} +: ${OCF_RESKEY_test_passwd=${OCF_RESKEY_test_passwd_default}} + +: ${OCF_RESKEY_enable_creation=${OCF_RESKEY_enable_creation_default}} +: ${OCF_RESKEY_additional_parameters=${OCF_RESKEY_additional_parameters_default}} + +: ${OCF_RESKEY_replication_user=${OCF_RESKEY_replication_user_default}} +: ${OCF_RESKEY_replication_passwd=${OCF_RESKEY_replication_passwd_default}} +: ${OCF_RESKEY_replication_port=${OCF_RESKEY_replication_port_default}} +: ${OCF_RESKEY_replication_require_ssl=${OCF_RESKEY_replication_require_ssl_default}} +: ${OCF_RESKEY_replication_master_ssl_ca=${OCF_RESKEY_replication_master_ssl_ca_default}} +: ${OCF_RESKEY_replication_master_ssl_cert=${OCF_RESKEY_replication_master_ssl_cert_default}} +: ${OCF_RESKEY_replication_master_ssl_key=${OCF_RESKEY_replication_master_ssl_key_default}} + +: ${OCF_RESKEY_max_slave_lag=${OCF_RESKEY_max_slave_lag_default}} +: ${OCF_RESKEY_evict_outdated_slaves=${OCF_RESKEY_evict_outdated_slaves_default}} + +: ${OCF_RESKEY_reader_attribute=${OCF_RESKEY_reader_attribute_default}} + +####################################################################### +# Convenience variables + +MYSQL=$OCF_RESKEY_client_binary +if ocf_is_true "$OCF_RESKEY_replication_require_ssl"; then + MYSQL_OPTIONS_LOCAL_SSL_OPTIONS="--ssl-mode=REQUIRED" +else + MYSQL_OPTIONS_LOCAL_SSL_OPTIONS="" +fi +MYSQL_OPTIONS_LOCAL="-S $OCF_RESKEY_socket" +MYSQL_OPTIONS_REPL="$MYSQL_OPTIONS_LOCAL_SSL_OPTIONS $MYSQL_OPTIONS_LOCAL --user=$OCF_RESKEY_replication_user --password=$OCF_RESKEY_replication_passwd" +MYSQL_OPTIONS_TEST="$MYSQL_OPTIONS_LOCAL --user=$OCF_RESKEY_test_user --password=$OCF_RESKEY_test_passwd" +MYSQL_TOO_MANY_CONN_ERR=1040 + +NODENAME=$(ocf_local_nodename) +CRM_ATTR="${HA_SBIN_DIR}/crm_attribute -N $NODENAME " +INSTANCE_ATTR_NAME=`echo ${OCF_RESOURCE_INSTANCE}| awk -F : '{print $1}'` +CRM_ATTR_REPL_INFO="${HA_SBIN_DIR}/crm_attribute --type crm_config --name ${INSTANCE_ATTR_NAME}_REPL_INFO -s mysql_replication" + +####################################################################### + +mysql_common_validate() +{ + + if ! have_binary "$OCF_RESKEY_binary"; then + ocf_exit_reason "Setup problem: couldn't find command: $OCF_RESKEY_binary" + return $OCF_ERR_INSTALLED; + fi + + if ! have_binary "$OCF_RESKEY_client_binary"; then + ocf_exit_reason "Setup problem: couldn't find command: $OCF_RESKEY_client_binary" + return $OCF_ERR_INSTALLED; + fi + + if [ ! -f $OCF_RESKEY_config ]; then + ocf_exit_reason "Config $OCF_RESKEY_config doesn't exist"; + return $OCF_ERR_INSTALLED; + fi + + if [ ! -d $OCF_RESKEY_datadir ]; then + ocf_exit_reason "Datadir $OCF_RESKEY_datadir doesn't exist"; + return $OCF_ERR_INSTALLED; + fi + + getent passwd $OCF_RESKEY_user >/dev/null 2>&1 + if [ ! $? -eq 0 ]; then + ocf_exit_reason "User $OCF_RESKEY_user doesn't exit"; + return $OCF_ERR_INSTALLED; + fi + + getent group $OCF_RESKEY_group >/dev/null 2>&1 + if [ ! $? -eq 0 ]; then + ocf_exit_reason "Group $OCF_RESKEY_group doesn't exist"; + return $OCF_ERR_INSTALLED; + fi + + return $OCF_SUCCESS +} + +mysql_common_check_pid() { + local pid=$1 + + if [ -d /proc -a -d /proc/1 ]; then + [ "u$pid" != "u" -a -d /proc/$pid ] + else + kill -s 0 $pid >/dev/null 2>&1 + fi + return $? +} + +mysql_common_status() { + local loglevel=$1 + local pid=$2 + if [ -z "$pid" ]; then + if [ ! -e $OCF_RESKEY_pid ]; then + ocf_log $loglevel "MySQL is not running" + return $OCF_NOT_RUNNING; + fi + + pid=`cat $OCF_RESKEY_pid`; + fi + + mysql_common_check_pid $pid + + + if [ $? -eq 0 ]; then + return $OCF_SUCCESS; + else + if [ -e $OCF_RESKEY_pid ]; then + ocf_log $loglevel "MySQL not running: removing old PID file" + rm -f $OCF_RESKEY_pid + fi + return $OCF_NOT_RUNNING; + fi +} + +mysql_common_prepare_dirs() +{ + local rc + + touch $OCF_RESKEY_log + chown $OCF_RESKEY_user:$OCF_RESKEY_group $OCF_RESKEY_log + chmod 0640 $OCF_RESKEY_log + [ -x /sbin/restorecon ] && /sbin/restorecon $OCF_RESKEY_log + + if ocf_is_true "$OCF_RESKEY_enable_creation" && [ ! -d $OCF_RESKEY_datadir/mysql ] ; then + ocf_log info "Initializing MySQL database: " + $MYSQL_BINDIR/mysql_install_db --datadir=$OCF_RESKEY_datadir + rc=$? + if [ $rc -ne 0 ] ; then + ocf_exit_reason "Initialization failed: $rc"; + exit $OCF_ERR_GENERIC + fi + chown -R $OCF_RESKEY_user:$OCF_RESKEY_group $OCF_RESKEY_datadir + fi + + pid_dir=`dirname $OCF_RESKEY_pid` + if [ ! -d $pid_dir ] ; then + ocf_log info "Creating PID dir: $pid_dir" + mkdir -p $pid_dir + chown $OCF_RESKEY_user:$OCF_RESKEY_group $pid_dir + fi + + socket_dir=`dirname $OCF_RESKEY_socket` + if [ ! -d $socket_dir ] ; then + ocf_log info "Creating socket dir: $socket_dir" + mkdir -p $socket_dir + chown $OCF_RESKEY_user:$OCF_RESKEY_group $socket_dir + fi + + # Regardless of whether we just created the directory or it + # already existed, check whether it is writable by the configured + # user + for dir in $pid_dir $socket_dir $OCF_RESKEY_datadir; do + if ! $SU -s /bin/sh - $OCF_RESKEY_user -c "test -w $dir"; then + ocf_exit_reason "Directory $dir is not writable by $OCF_RESKEY_user" + exit $OCF_ERR_PERM; + fi + done +} + +mysql_common_start() +{ + local mysql_extra_params="$1" + local pid + + $SU - $OCF_RESKEY_user -s /bin/sh -c \ + "${OCF_RESKEY_binary} --defaults-file=$OCF_RESKEY_config \ + --pid-file=$OCF_RESKEY_pid \ + --socket=$OCF_RESKEY_socket \ + --datadir=$OCF_RESKEY_datadir \ + --log-error=$OCF_RESKEY_log \ + $OCF_RESKEY_additional_parameters \ + $mysql_extra_params >/dev/null 2>&1" & + pid=$! + + # Spin waiting for the server to come up. + # Let the CRM/LRM time us out if required. + start_wait=1 + while [ $start_wait = 1 ]; do + if ! ps $pid > /dev/null 2>&1; then + wait $pid + ocf_exit_reason "MySQL server failed to start (pid=$pid) (rc=$?). Check $OCF_RESKEY_log for details" + return $OCF_ERR_GENERIC + fi + mysql_common_status info + rc=$? + if [ $rc = $OCF_SUCCESS ]; then + start_wait=0 + elif [ $rc != $OCF_NOT_RUNNING ]; then + ocf_log info "MySQL start failed: $rc" + return $rc + fi + sleep 2 + done + + return $OCF_SUCCESS +} + +mysql_common_stop() +{ + local pid + local rc + + if [ ! -f $OCF_RESKEY_pid ]; then + ocf_log info "MySQL is not running" + return $OCF_SUCCESS + fi + + pid=`cat $OCF_RESKEY_pid 2> /dev/null ` + + mysql_common_check_pid $pid + if [ $? -ne 0 ]; then + rm -f $OCF_RESKEY_pid + ocf_log info "MySQL is already stopped" + return $OCF_SUCCESS; + fi + + /bin/kill $pid > /dev/null + rc=$? + if [ $rc != 0 ]; then + ocf_exit_reason "MySQL couldn't be stopped" + return $OCF_ERR_GENERIC + fi + # stop waiting + shutdown_timeout=15 + if [ -n "$OCF_RESKEY_CRM_meta_timeout" ]; then + shutdown_timeout=$((($OCF_RESKEY_CRM_meta_timeout/1000)-5)) + fi + count=0 + while [ $count -lt $shutdown_timeout ] + do + mysql_common_status info $pid + rc=$? + if [ $rc = $OCF_NOT_RUNNING ]; then + break + fi + count=`expr $count + 1` + sleep 1 + ocf_log debug "MySQL still hasn't stopped yet. Waiting..." + done + + mysql_common_status info $pid + if [ $? != $OCF_NOT_RUNNING ]; then + ocf_log info "MySQL failed to stop after ${shutdown_timeout}s using SIGTERM. Trying SIGKILL..." + /bin/kill -KILL $pid > /dev/null + mysql_common_status info $pid + if [ $? != $OCF_NOT_RUNNING ]; then + return $OCF_ERR_GENERIC + fi + fi + + ocf_log info "MySQL stopped"; + rm -f /var/lock/subsys/mysqld + rm -f $OCF_RESKEY_socket + return $OCF_SUCCESS + +} |