Files
openGauss-server/docker/upgrade/upgrade_common.sh
2024-09-13 15:21:05 +08:00

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#!/bin/bash
# Copyright (c) Huawei Technologies Co., Ltd. 2010-2022. All rights reserved.
# date: 2021-12-22
# version: 1.0
function init_config() {
# upgrade tool path
UPGRADE_TOOL_PATH=$(
cd $(dirname $0)
pwd
)
source ${UPGRADE_TOOL_PATH}/upgrade_errorcode.sh
if [[ X"$ENVFILE" = X ]]; then
ENVFILE=~/.bashrc
fi
if ! source $ENVFILE; then
echo "Error: please check $ENVFILE first"
exit 1
fi
if [[ X"$GAUSSDATA" = X ]]; then
GAUSSDATA=/var/lib/opengauss/data
fi
if [[ X"$GAUSS_UPGRADE_BASE_PATH" = X ]]; then
GAUSS_UPGRADE_BASE_PATH=$GAUSSDATA/upgrade
fi
if [[ X"$UPGRADE_NEW_PKG_PATH" = X ]]; then
UPGRADE_NEW_PKG_PATH=$GAUSS_UPGRADE_BASE_PATH/pkg_new
fi
}
function check_and_init() {
check_config
check_user
check_cmd_conflict
}
function check_config() {
# check GAUSS_UPGRADE_BASE_PATH and cd in
check_config_path "$GAUSS_UPGRADE_BASE_PATH"
if [[ ! -d "$GAUSS_UPGRADE_BASE_PATH" ]]; then
die "$GAUSS_UPGRADE_BASE_PATH must exist" ${err_check_init}
fi
if ! cd "$GAUSS_UPGRADE_BASE_PATH"; then
die "Cannot access $GAUSS_UPGRADE_BASE_PATH" ${err_check_init}
fi
# check and init GAUSS_LOG_FILE
check_and_init_log_file
# check env
check_env
# check GAUSS_LISTEN_PORT
check_port
# check UPGRADE_NEW_PKG_PATH and cd in
check_config_path "$UPGRADE_NEW_PKG_PATH"
if [[ ! -d "$UPGRADE_NEW_PKG_PATH" ]]; then
die "$UPGRADE_NEW_PKG_PATH must exist" ${err_check_init}
fi
if ! cd "$UPGRADE_NEW_PKG_PATH"; then
die "Cannot access $UPGRADE_NEW_PKG_PATH" ${err_check_init}
fi
# check GAUSS_TMP_PATH
if [[ X"$GAUSS_TMP_PATH" = X ]]; then
GAUSS_TMP_PATH=${GAUSS_UPGRADE_BASE_PATH}/tmp
fi
check_config_path "$GAUSS_TMP_PATH"
if [[ ! -d "$GAUSS_TMP_PATH" ]]; then
if ! mkdir -p -m 700 "$GAUSS_TMP_PATH"; then
die "mkdir -p -m 700 $GAUSS_TMP_PATH failed" ${err_check_init}
fi
fi
# check GAUSS_BACKUP_BASE_PATH
if [[ X"$GAUSS_BACKUP_BASE_PATH" = X ]]; then
GAUSS_BACKUP_BASE_PATH=${GAUSS_UPGRADE_BASE_PATH}/bak
fi
check_config_path "$GAUSS_BACKUP_BASE_PATH"
if [[ ! -d "$GAUSS_BACKUP_BASE_PATH" ]]; then
if ! mkdir -p -m 700 "$GAUSS_BACKUP_BASE_PATH"; then
die "mkdir -p -m 700 $GAUSS_BACKUP_BASE_PATH failed" ${err_check_init}
fi
fi
# query current dn role and save it to temp file
query_dn_role
# check GAUSS_UPGRADE_SYNC_CONFIG_LIST
check_config_sync_path
}
function check_and_init_log_file() {
# check and init GAUSS_LOG_FILE
if [[ X"$GAUSS_LOG_PATH" = X ]]; then
GAUSS_LOG_FILE=$GAUSS_UPGRADE_BASE_PATH/upgrade.log
else
check_config_path "$GAUSS_LOG_PATH"
GAUSS_LOG_FILE="$GAUSS_LOG_PATH"/upgrade.log
fi
log_dir=$(dirname "$GAUSS_LOG_FILE")
if [[ ! -d "$log_dir" ]]; then
if ! mkdir -p -m 700 "$log_dir"; then
echo "mkdir -p -m 700 ${log_dir} failed"
exit ${err_check_init}
fi
fi
if touch "$GAUSS_LOG_FILE" && chmod 600 "$GAUSS_LOG_FILE"; then
echo "check log file is ok" >>"$GAUSS_LOG_FILE"
else
echo "touch $GAUSS_LOG_FILE && chmod 600 $GAUSS_LOG_FILE failed"
exit ${err_check_init}
fi
}
function check_port() {
#check GAUSS_LISTEN_PORT
if [[ X"$GAUSS_LISTEN_PORT" = X ]]; then
GAUSS_LISTEN_PORT=$(grep -E "^[ ]{0,}port" "$GAUSSDATA"/postgresql.conf | sed 's/\s*//g' | awk -F# '{print $1}' | awk -F= '{print $2}')
fi
if [[ X"$GAUSS_LISTEN_PORT" = X ]]; then
GAUSS_LISTEN_PORT=5432
debug "The value of port cannot be obtained from configuration, use default value 5432"
fi
if ! echo "$GAUSS_LISTEN_PORT" | grep -Eqw "[0-9]{4,5}"; then
die "GAUSS_LISTEN_PORT may be not right" ${err_check_init}
fi
}
function usage() {
echo "
Usage: $0 [OPTION]
Arguments:
-h|--help show this help, then exit
-t upgrade_pre,upgrade_bin,upgrade_post,rollback_pre,rollback_bin,rollback_post,upgrade_commit
query_start_mode,switch_over
--min_disk reserved upgrade disk space in MB, default 2048
-D openGauss data dir, default /var/lib/opengauss/data
-B upgrade root dir, default /var/lib/opengauss/data/upgrade
-N new package dir, default /var/lib/opengauss/data/upgrade/pkg_new
-E env file, default /home/omm/.bashrc
"
}
function debug() {
local current_time=$(date +"%Y-%m-%d %H:%M:%S")
echo "[$current_time]" "$1" >>"${GAUSS_LOG_FILE}"
}
function log() {
local current_time=$(date +"%Y-%m-%d %H:%M:%S")
echo "[$current_time]" "$1" >>"${GAUSS_LOG_FILE}"
echo "$1"
}
function die() {
local current_time=$(date +"%Y-%m-%d %H:%M:%S")
if [[ -f "${GAUSS_LOG_FILE}" ]];then
echo "[$current_time]" "$1" >>"${GAUSS_LOG_FILE}"
fi
echo -e "\033[31mError: $1\033[0m"
exit $2
}
function parse_cmd_line() {
while [[ $# -gt 0 ]]; do
case "$1" in
-h | --help)
usage
exit 0
;;
-t)
if [[ "$2" = "" ]]; then
die "the parameter -t cannot be empty." ${err_parameter}
fi
action=$2
action_list="upgrade_pre upgrade_bin upgrade_post rollback_pre rollback_bin rollback_post upgrade_commit query_start_mode switch_over"
if ! echo "$action_list"|grep -wq "$action"; then
local error_msg="only these actions are supported: upgrade_pre, upgrade_bin, upgrade_post, rollback_pre, \
rollback_bin, rollback_post, upgrade_commit and query_start_mode switch_over"
die "$error_msg" ${err_parameter}
fi
shift 2
;;
--min_disk)
if [[ "$2" = "" ]]; then
die "the parameter --min_disk cannot be empty." ${err_parameter}
fi
min_disk=$2
if echo ${min_disk} | grep -q "[^0-9]";then
die "min_disk value must be int " ${err_parameter}
fi
if echo ${min_disk} | grep -q "^0";then
die "min_disk value cannot start with 0 " ${err_parameter}
fi
if [[ ${min_disk} -lt 2048 || ${min_disk} -gt 204800 ]]; then
die "min_disk value must be >= 2048 and <= 204800" ${err_parameter}
fi
shift 2
;;
-D)
if [[ "$2" = "" ]]; then
die "the parameter -d cannot be empty." ${err_parameter}
fi
GAUSSDATA=$2
shift 2
;;
-B)
if [[ "$2" = "" ]]; then
die "the parameter -B cannot be empty." ${err_parameter}
fi
GAUSS_UPGRADE_BASE_PATH=$2
shift 2
;;
-N)
if [[ "$2" = "" ]]; then
die "the parameter -N cannot be empty." ${err_parameter}
fi
UPGRADE_NEW_PKG_PATH=$2
shift 2
;;
-E)
if [[ "$2" = "" ]]; then
die "the parameter -e cannot be empty." ${err_parameter}
fi
ENVFILE=$2
shift 2
;;
*)
echo "please input right parameter, the following command may help you"
echo "sh upgrade.sh --help or sh upgrade.sh -h"
exit ${err_parameter}
;;
esac
done
echo "Parse cmd line successfully."
}
function check_user() {
user=$(whoami)
if [[ X"$user" == X"root" ]]; then
die "Can not exec the script with root!" ${err_check_init}
fi
}
function check_env() {
if [[ "$GAUSSHOME" == "" ]]; then
die "GAUSSHOME cannot be null!" ${err_check_init}
fi
if [[ "$GAUSSDATA" == "" ]]; then
die "GAUSSDATA cannot be all null!" ${err_check_init}
fi
check_config_path "$GAUSSHOME"
check_config_path "$GAUSSDATA"
log "Current env value: GAUSSHOME is $GAUSSHOME, GAUSSDATA is $GAUSSDATA."
}
function check_config_path() {
local temp_value="$1"
if [[ "$temp_value" == *[\(\)\{\}\[\]\<\>\"\'\`\\\ \*\!\|\;\&\$\~\?]* ]];then
die "$temp_value may contain illegal characters" ${err_check_init}
fi
if echo "$temp_value"|grep -Eq "^/{1,}$"; then
die "path cannot be / " ${err_check_init}
fi
}
function check_config_sync_path() {
if [[ "abc$GAUSS_UPGRADE_SYNC_CONFIG_LIST" == "abc" ]]; then
debug "GAUSS_UPGRADE_SYNC_CONFIG_LIST is null"
fi
if [[ "$GAUSS_UPGRADE_SYNC_CONFIG_LIST" == *[\(\)\{\}\[\]\<\>\"\'\`\\\ \*\!\|\;\&\$\~\?]* ]];then
die "$GAUSS_UPGRADE_SYNC_CONFIG_LIST may contain illegal characters" ${err_check_init}
fi
local array=(${GAUSS_UPGRADE_SYNC_CONFIG_LIST//,/ })
for var in ${array[@]}
do
if echo "$var"|grep -Eq "^/"; then
die "path in ${GAUSS_UPGRADE_SYNC_CONFIG_LIST} must not be start with /" ${err_check_init}
fi
done
}
function check_config_user() {
local temp_value="$1"
if [[ "$temp_value" == *[\(\)\{\}\[\]\<\>\"\'\`\\\ \*\!\|\;\&\$\~\?/]* ]];then
die "$temp_value may contain illegal characters" ${err_check_init}
fi
}
function check_version() {
# get old version
if [[ ! -f ${GAUSSHOME}/version.cfg ]]; then
die "Cannot find current version.cfg!" ${err_upgrade_pre}
fi
old_version=$(sed -n 3p $GAUSSHOME/version.cfg)
old_cfg=$(sed -n 2p "$GAUSSHOME"/version.cfg | sed 's/\.//g')
# get new version
if [[ ! -f $UPGRADE_NEW_PKG_PATH/version.cfg ]]; then
die "Cannot find new version.cfg!" ${err_upgrade_pre}
fi
new_version=$(sed -n 3p $UPGRADE_NEW_PKG_PATH/version.cfg)
new_cfg=$(sed -n 2p $UPGRADE_NEW_PKG_PATH/version.cfg | sed 's/\.//g')
if [[ X"$old_version" == X || X"$old_cfg" == X || X"$new_version" == X || X"$new_cfg" == X ]]; then
die "Maybe version.cfg is not normal" ${err_upgrade_pre}
fi
if ! echo "$old_cfg"|grep -Ewq "[0-9]{3,6}";then
die "Maybe old version.cfg is not normal" ${err_upgrade_pre}
fi
if ! echo "$new_cfg"|grep -Ewq "[0-9]{3,6}";then
die "Maybe new version.cfg is not normal" ${err_upgrade_pre}
fi
if [[ "$old_version" == "$new_version" ]]; then
die "New version is same as old, the commitId is $old_version!" ${err_version_same}
fi
if [[ ${new_cfg} -lt ${old_cfg} ]]; then
die "Current version is newer!" ${err_upgrade_pre}
fi
big_cfg="False"
if [[ ${new_cfg} -gt ${old_cfg} ]]; then
log "Big upgrade is needed!"
big_cfg="True"
fi
local flag_file="$GAUSS_TMP_PATH"/version_flag
if echo "old_version=$old_version" > "$flag_file" && chmod 600 "$flag_file"; then
debug "Begin to generate $flag_file"
else
die "Write $flag_file failed" ${err_upgrade_pre}
fi
if ! echo "new_version=$new_version" >> "$flag_file"; then
die "Write $flag_file failed" ${err_upgrade_pre}
fi
if ! echo "big_cfg=$big_cfg" >> "$flag_file"; then
die "Write $flag_file failed" ${err_upgrade_pre}
fi
if ! echo "old_cfg=$old_cfg" >> "$flag_file"; then
die "Write $flag_file failed" ${err_upgrade_pre}
fi
log "Old version commitId is $old_version, version info is $old_cfg"
log "New version commitId is $new_version, version info is $new_cfg"
# need version.cfg to check big upgrade,note user exec sql on primary dn
}
function check_disk() {
avail_disk=$(df -BM "$GAUSS_UPGRADE_BASE_PATH" | tail -n 1 | awk '{print $4}')
avail_disk=${avail_disk:0:-1}
if [[ X"$min_disk" == "X" ]]; then
min_disk=2048
fi
if [[ ${avail_disk} -lt ${min_disk} ]]; then
die "avail disk must be >= ${min_disk}MB, check with cmd: df -BM $GAUSSHOME!" ${err_check_init}
fi
log "Check available disk space successfully."
}
function check_db_process() {
#ps wwx | grep "$GAUSSHOME/bin/gaussdb" | grep -v grep > /dev/null
ps -ef|grep gaussdb | grep -v grep > /dev/null
}
function check_cmd_conflict() {
LOCKFILE="${GAUSS_TMP_PATH}/.lock_GAUSSDB_UPGRADE_V5"
if [[ -f "$LOCKFILE" ]]
then
pid=$(cat ${LOCKFILE})
if [[ -n "$pid" ]];then
if ps -p ${pid} | grep -w ${pid} >/dev/null;then
die "Maybe upgrade_GAUSSV5.sh is running!" ${err_check_init}
fi
fi
fi
if ! echo $$ > "$LOCKFILE"; then
die "Write $LOCKFILE failed" ${err_check_init}
fi
}
function check_pkg() {
if [[ -d "${GAUSS_UPGRADE_BIN_PATH}" ]]; then
local file_list=(bin etc include lib share version.cfg)
for temp_file in ${file_list[@]}
do
if [[ ! -e "${GAUSS_UPGRADE_BIN_PATH}/${temp_file}" ]];then
die "$GAUSS_UPGRADE_BIN_PATH may be not right, ${temp_file} not exits" ${err_upgrade_pre}
fi
done
if [[ $(ls "${GAUSS_UPGRADE_BIN_PATH}" |wc -l) -eq 6 ]]; then
log "The upgrade will use existing files in $GAUSS_UPGRADE_BIN_PATH"
return 0
else
die "$GAUSS_UPGRADE_BIN_PATH may be not right,exits other files" ${err_upgrade_pre}
fi
fi
#get OS distributed version.
kernel=""
if [[ -f "/etc/euleros-release" ]]; then
kernel=$(cat /etc/euleros-release | awk -F ' ' '{print $1}' | tr a-z A-Z)
if [[ "${kernel}" = "EULEROS" ]]; then
kernel="EULER"
fi
elif [[ -f "/etc/openEuler-release" ]]; then
kernel=$(cat /etc/openEuler-release | awk -F ' ' '{print $1}')
elif [[ -f "/etc/centos-release" ]]; then
kernel=$(cat /etc/centos-release | awk -F ' ' '{print $1}')
else
kernel=$(lsb_release -d | awk -F ' ' '{print $2}')
fi
log "kernel: ${kernel}"
#detect platform information.
platform_arch=$(uname -p)
bin_name="openGauss-3.0.1-CentOS-64bit.tar.bz2"
binfile="openGauss-3.0.1-CentOS-64bit.tar.bz2"
shafile="openGauss-3.0.1-CentOS-64bit.sha256"
if [[ ! -f "${binfile}" ]] || [[ ! -f "${shafile}" ]]; then
die "bin or sha256 file not exit for the platform ${kernel}-${platform_arch}!" ${err_upgrade_pre}
fi
sha_expect=$(cat ${shafile})
sha_current=$(sha256sum ${binfile} | awk '{print $1}')
if [[ "$sha_expect" != "$sha_current" ]]; then
die "The sha256 value of $binfile does not match $shafile!" ${err_upgrade_pre}
fi
if ! echo "binfile=$binfile" >>"$GAUSS_TMP_PATH"/version_flag; then
die "Write $GAUSS_TMP_PATH/version_flag failed" ${err_upgrade_pre}
fi
if [[ ! -f "$UPGRADE_NEW_PKG_PATH"/version.cfg ]]; then
die "version.cfg must be exist in $UPGRADE_NEW_PKG_PATH" ${err_upgrade_pre}
fi
}
function bak_gauss() {
# bak postgresql.conf & pg_hba.conf
if ! cp -rf "$GAUSSDATA"/postgresql.conf "$GAUSS_BACKUP_BASE_PATH"/postgresql.conf_"$old_version"; then
die "Bak postgresql.conf failed!" ${err_upgrade_pre}
else
log "Bak postgresql.conf successfully."
fi
if ! cp -rf "$GAUSSDATA"/pg_hba.conf "$GAUSS_BACKUP_BASE_PATH"/pg_hba.conf_"$old_version"; then
die "Bak pg_hba.conf failed!" ${err_upgrade_pre}
else
log "Bak pg_hba.conf successfully."
fi
# 如果新旧版本跨越了92601,则需要备份pg_filenode.map和pg_filenode.map.backup
if [ $old_cfg -lt 92601 ] && [ $new_cfg -ge 92601 ] ; then
if ! cp -rf $GAUSSDATA/global/pg_filenode.map $GAUSS_BACKUP_BASE_PATH/pg_filenode.map_$old_version; then
die "Bak pg_filenode.map failed!" ${err_upgrade_pre}
else
log "Bak pg_filenode.map successfully."
fi
if ! cp -rf $GAUSSDATA/global/pg_filenode.map.backup $GAUSS_BACKUP_BASE_PATH/pg_filenode.map.backup_$old_version; then
die "Bak pg_filenode.map.backup failed!" ${err_upgrade_pre}
else
log "Bak pg_filenode.map.backup successfully."
fi
fi
}
function decompress_pkg() {
if [[ -d "${GAUSS_UPGRADE_BIN_PATH}" ]]; then
return 0
fi
if [[ -d "$GAUSS_TMP_PATH"/install_bin_"$new_version" ]];then
rm -rf "$GAUSS_TMP_PATH"/install_bin_"$new_version"
fi
if mkdir -p -m 700 "$GAUSS_TMP_PATH"/install_bin_"$new_version"; then
log "begin decompress pkg in $GAUSS_TMP_PATH/install_bin_$new_version"
fi
if [[ X"$binfile" == X ]]; then
binfile=$(grep binfile "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
if [[ X"$binfile" == X ]]; then
die "binfile name cannot be null" ${err_upgrade_pre}
fi
fi
if cp "$binfile" "$GAUSS_TMP_PATH"/install_bin_"$new_version" && cd "$GAUSS_TMP_PATH"/install_bin_"$new_version" && tar -xf "$binfile" \
&& rm -f "$binfile"; then
log "Decompress $binfile successfully."
else
die "Decompress $binfile failed" ${err_upgrade_pre}
fi
if cd "$UPGRADE_NEW_PKG_PATH" && cp "$UPGRADE_NEW_PKG_PATH"/version.cfg "$GAUSS_TMP_PATH"/install_bin_"$new_version"; then
log "cp version.cfg successfully"
else
die "cp version.cfg failed" ${err_upgrade_pre}
fi
}
function cp_pkg() {
if [[ X"$new_version" == X ]]; then
new_version=$(grep new_version "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
fi
if [[ -d "$GAUSS_UPGRADE_BIN_PATH" ]]; then
new_bin_path="${GAUSS_UPGRADE_BIN_PATH}"
else
new_bin_path="$GAUSS_TMP_PATH"/install_bin_"$new_version"
fi
#check pkg's version.cfg is equal to version_flag
temppkg_version=$(sed -n 3p "$new_bin_path"/version.cfg)
if [[ "$new_version" != "$temppkg_version" ]]; then
die "pkg's version.cfg is not correct!" ${err_upgrade_bin}
fi
if [[ -d "$GAUSSHOME" ]];then
rm -rf "$GAUSSHOME"/*
fi
if cp -rf "$new_bin_path"/* "$GAUSSHOME"; then
log "Binfile upgrade to new version successfully."
else
die "Binfile upgrade to new version failed" ${err_upgrade_bin}
fi
}
function prepare_sql() {
#$1: upgrade,upgrade-post,rollback,rollback-post
#$2: maindb,otherdb
temp_old=${old_cfg}
temp_new=${new_cfg}
local action="$1"
local dbname="$2"
local tempfile="$GAUSS_TMP_PATH"/temp_sql/"temp_"${action}_${dbname}.sql
temp_file_num=0
if echo "START TRANSACTION;set IsInplaceUpgrade = on;" > "$tempfile" && chmod 600 "$tempfile"; then
debug "Begin to generate $tempfile"
else
die "Write $tempfile failed" ${err_upgrade_pre}
fi
if ! echo "SET search_path = 'pg_catalog';SET local client_min_messages = NOTICE;SET local log_min_messages = NOTICE;" >> "$tempfile"; then
die "Write $tempfile failed" ${err_upgrade_pre}
fi
if ! echo "SET statement_timeout = 36000;" >> "$tempfile"; then
die "Write $tempfile failed" ${err_upgrade_pre}
fi
if [[ "$action" == "upgrade" || "$action" == "upgrade-post" ]]; then
while [[ ${temp_old} -lt ${temp_new} ]]; do
((temp_old=$temp_old+1))
local upgrade_sql_file="upgrade_sql/upgrade_catalog_${dbname}/${action}_catalog_${dbname}_${temp_old:0:2}_${temp_old:2}.sql"
if [[ -f "$upgrade_sql_file" ]]; then
if ! cat "$upgrade_sql_file" >> "$tempfile"; then
die "Write $tempfile failed" ${err_upgrade_pre}
fi
debug "$upgrade_sql_file >> $tempfile"
((temp_file_num=temp_file_num+1))
fi
done
fi
if [[ "$1" == "rollback" || "$1" == "rollback-post" ]]; then
while [[ ${temp_new} -gt ${temp_old} ]]; do
local upgrade_sql_file="upgrade_sql/rollback_catalog_${dbname}/${action}_catalog_${dbname}_${temp_new:0:2}_${temp_new:2}.sql"
if [[ -f "$upgrade_sql_file" ]]; then
# skip *92_506.slq for now
if echo "$upgrade_sql_file" | grep "92_506" > /dev/null; then
local sql_92_506=$upgrade_sql_file
((temp_new=$temp_new-1))
debug "skip 92506"
continue
fi
if ! cat "$upgrade_sql_file" >> "$tempfile"; then
die "Write $tempfile failed" ${err_upgrade_pre}
fi
debug "$upgrade_sql_file >>$tempfile"
((temp_file_num=temp_file_num+1))
fi
((temp_new=$temp_new-1))
done
# append *92_506.sql to the end of tempfile
if [[ X"$sql_92_506" != X ]]; then
if ! cat "$sql_92_506" >> "$tempfile"; then
die "Write $tempfile failed" ${err_upgrade_pre}
fi
fi
fi
if ! echo "COMMIT;" >> "$tempfile";then
die "Write $tempfile failed" ${err_upgrade_pre}
fi
#file not meet requirements
if [[ ${temp_file_num} -eq 0 ]]; then
debug "No sql file for ${action} ${dbname}!"
rm -f "$tempfile"
else
debug "get ${temp_file_num} files for ${action} ${dbname}!"
fi
}
function prepare_sql_all() {
local dir_temp_sql="$GAUSS_TMP_PATH"/temp_sql
local sql_tar_file="$UPGRADE_NEW_PKG_PATH"/upgrade_sql.tar.gz
local sql_tar_sha="$UPGRADE_NEW_PKG_PATH"/upgrade_sql.sha256
if [[ ! -f "${sql_tar_file}" ]] || [[ ! -f "${sql_tar_sha}" ]]; then
die "${sql_tar_file} or ${sql_tar_sha} not exit!" ${err_upgrade_pre}
fi
local sha_expect=$(cat ${sql_tar_sha})
local sha_current=$(sha256sum ${sql_tar_file} | awk '{print $1}')
if [[ "$sha_expect" != "$sha_current" ]]; then
die "The sha256 value of $sql_tar_file does not match $sql_tar_sha!" ${err_upgrade_pre}
fi
if [[ -d "$dir_temp_sql" ]];then
rm -rf "$dir_temp_sql"
fi
if mkdir -p -m 700 "$dir_temp_sql" && tar -xf "$sql_tar_file" -C "$dir_temp_sql"; then
log "decompress upgrade_sql.tar.gz successfully."
else
die "decompress upgrade_sql.tar.gz failed" ${err_upgrade_pre}
fi
# total 8
cd $dir_temp_sql
for action in upgrade upgrade-post rollback rollback-post; do
for db_base in maindb otherdb; do
prepare_sql ${action} ${db_base}
done
done
cd ${GAUSS_UPGRADE_BASE_PATH}
}
function exec_sql() {
#$1: sqlfilename
#$2: maindb,otherdb
if [[ X"$dn_role" == X"standby" || X"$dn_role" == X"cascade_standby" ]]; then
return 0
fi
if [[ ! -f "$1" ]]; then
return 0
fi
if ! check_upgrade_mode_by_sql;then
return 1
fi
tempresult="$GAUSS_TMP_PATH"/"temp_sql_tempresult_$(date +%Y%m%d_%H%M%S)"
if echo "" > "$tempresult" && chmod 600 "$tempresult"; then
debug "begin exec sql ,file name is $1"
else
log "Generate $tempresult failed."
fi
sqlbegin="gsql -p $GAUSS_LISTEN_PORT -X -t -A "
if [[ "$2" == "maindb" ]]; then
if echo "$db_password" | ${sqlbegin} -d postgres --echo-queries --set ON_ERROR_STOP=on -f $1 >> "$tempresult" 2>&1;then
debug "Exec $1 on database: postgres successfully"
else
log "Exec sql on postgres failed."
debug "$(cat ${tempresult})"
rm -f ${tempresult}
return 1
fi
else
if databases=$(${sqlbegin} -d postgres -c "SELECT datname FROM pg_catalog.pg_database where datname != 'postgres';");then
temp_num=$(echo ${databases}|awk '{print NF}')
debug "Num of other databases: $temp_num"
else
log "Exec sql to get databases failed."
return 1
fi
for database in ${databases}; do
debug "Begin exec $1 on database: $database "
${sqlbegin} -d ${database} --echo-queries --set ON_ERROR_STOP=on -f $1 >> "$tempresult" 2>&1
done
fi
if grep -wE "ERROR:|FATAL:|could not connect to server" ${tempresult}; then
log "Exec sql failed."
debug "$(cat ${tempresult})"
rm -f ${tempresult}
return 1
else
debug "Exec all sql successfully."
rm -f ${tempresult}
return 0
fi
}
function guc_delete() {
bak_ifs=$IFS
IFS=$'\n'
if [[ ! -f "$GAUSS_TMP_PATH"/temp_sql/upgrade_sql/set_guc/delete_guc ]]; then
log "No need to delete guc"
fi
for para in $(cat "$GAUSS_TMP_PATH"/temp_sql/upgrade_sql/set_guc/delete_guc); do
if echo ${para}|grep -w datanode > /dev/null;then
para=$(echo ${para}|awk '{print $1}')
if sed -i "/^${para}[ =]/d" ${GAUSSDATA}/postgresql.conf; then
debug "$para was deleted successfully."
else
die "$para was deleted failed" ${err_upgrade_bin}
fi
fi
done
IFS=${bak_ifs}
log "Delete guc successfully"
}
function stop_dbnode() {
if ! check_db_process; then
return 0
fi
gs_ctl stop -D ${GAUSSDATA} >>"${GAUSS_LOG_FILE}" 2>&1
}
function start_dbnode() {
start_cmd="gs_ctl start -D ${GAUSSDATA} -t 600 "
if [[ X"$dn_role" = X ]]; then
return 1
fi
if [[ X"$dn_role" != X"normal" ]]; then
start_cmd="$start_cmd -M $dn_role"
fi
start_option=""
if [[ X"$1" != X ]]; then
start_option="-o '-u $1'"
fi
log "start gaussdb by cmd: $start_cmd $start_option"
${start_cmd} "$start_option" >>"${GAUSS_LOG_FILE}" 2>&1
}
function query_dn_role() {
if [ -f "$GAUSS_TMP_PATH/temp_dn_role" ]; then
dn_role=$(grep local_role "${GAUSS_TMP_PATH}/temp_dn_role" | head -1 | awk '{print $3}')
else
gs_ctl query -D ${GAUSSDATA} > ${GAUSS_TMP_PATH}/temp_dn_role
dn_role=$(grep local_role "${GAUSS_TMP_PATH}/temp_dn_role" | head -1 | awk '{print $3}')
fi
if [[ "$dn_role" = "Normal" ]]; then
dn_role="normal"
elif [[ "$dn_role" = "Primary" ]]; then
dn_role="primary"
elif [[ "$dn_role" = "Standby" ]]; then
dn_role="standby"
elif [[ "$dn_role" = "Cascade" ]]; then
dn_role="cascade_standby"
else
dn_role=""
fi
if [[ X"$dn_role" = X ]]; then
die "dn_role cannot be null" ${err_dn_role_null}
fi
}
function hide_password() {
echo "input sql password:"
read -s db_password
}
function reload_upgrade_config() {
if check_upgrade_config "$1" "$2"; then
return 0
fi
local current_time=$(date +"%Y-%m-%d %H:%M:%S")
echo -n \[${current_time}\] " " >>"${GAUSS_LOG_FILE}"
for i in $(seq 1 3);do
if gs_guc reload -D ${GAUSSDATA} -c "$1=$2" >>"${GAUSS_LOG_FILE}" 2>&1; then
return 0
fi
sleep 2
done
return 1
}
function set_upgrade_config() {
if check_upgrade_config "$1" "$2"; then
return 0
fi
local current_time=$(date +"%Y-%m-%d %H:%M:%S")
echo -n \[${current_time}\] " " >>"${GAUSS_LOG_FILE}"
for i in $(seq 1 3);do
if gs_guc set -D ${GAUSSDATA} -c "$1=$2" >>"${GAUSS_LOG_FILE}" 2>&1; then
debug "guc set $1=$2 successfully"
return 0
fi
sleep 2
done
return 1
}
function check_upgrade_config() {
local tempfile="$GAUSS_TMP_PATH"/".temp_check_guc_value"
if gs_guc check -D ${GAUSSDATA} -c "$1" > "$tempfile" 2>&1 ;then
tempvalue=$(cat "$tempfile"|tail -2|head -1|sed 's/[[:space:]]//g'|awk -F= '{print $2}')
if ! rm -f ${tempfile}; then
log "rm -f $tempfile failed"
return 1
fi
if [[ "$tempvalue" == "$2" ]]; then
debug "guc check $1=$2 successfully"
return 0
else
return 1
fi
else
if ! rm -f ${tempfile}; then
log "rm -f $tempfile failed"
return 1
fi
return 1
fi
}
function check_upgrade_mode_by_sql(){
# check upgrade_mode = 2 by sql
check_upgrade_mode_result="$GAUSS_TMP_PATH"/".temp_upgrade_mode"
if echo "" > ${check_upgrade_mode_result} && chmod 600 ${check_upgrade_mode_result}; then
debug "Begin to generate check_upgrade_mode_result."
else
log "generate $check_upgrade_mode_result failed."
return 1
fi
gsql -p ${GAUSS_LISTEN_PORT} -d postgres -X -t -A \
-c "show upgrade_mode;" > ${check_upgrade_mode_result} 2>&1 &
sleep 0.1
for i in $(seq 1 60);
do
check_mode_sql=$(cat ${check_upgrade_mode_result})
if [[ "$check_mode_sql" == "2" ]];then
rm -f ${check_upgrade_mode_result}
return 0
elif [[ "$check_mode_sql" == "0" ]];then
rm -f ${check_upgrade_mode_result}
echo ${db_password} | gsql -p ${GAUSS_LISTEN_PORT} -d postgres -X -t -A \
-c "show upgrade_mode;" > ${check_upgrade_mode_result} 2>&1 &
elif [[ "$check_mode_sql" == "" ]];then
debug "Wait for check_upgrade_mode_result..."
else
log "$(cat ${check_upgrade_mode_result})"
return 1
fi
sleep 0.5
done
if [[ -f "${check_upgrade_mode_result}" ]]; then
debug "check_upgrade_mode_result is $(cat ${check_upgrade_mode_result})"
rm -f ${check_upgrade_mode_result}
else
debug "get upgrade_mode by gsql failed"
fi
return 1
}
function rollback_pre() {
parses_step
if [[ "$current_step" -lt 1 ]]; then
log "no need do rollback_pre step"
elif [[ "$current_step" -gt 2 ]]; then
die "You should rollback_bin first" ${err_rollback_pre}
else
if [[ X"$big_cfg" == X ]]; then
big_cfg=$(grep big_cfg "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
fi
if [[ "$big_cfg" == "True" ]]; then
if ! check_db_process; then
die "Gaussdb is not running" ${err_rollback_pre}
fi
if ! reload_upgrade_config upgrade_mode 2; then
die "set upgrade_mode to 2 failed" ${err_rollback_pre}
fi
record_step 1
if exec_sql "$GAUSS_TMP_PATH"/temp_sql/temp_rollback_maindb.sql maindb && exec_sql "$GAUSS_TMP_PATH"/temp_sql/temp_rollback_otherdb.sql otherdb; then
debug "rollback pre sql successfully"
else
die "rollback pre sql failed" ${err_rollback_pre}
fi
if ! reload_upgrade_config upgrade_mode 0; then
die "set upgrade_mode to 0 failed" ${err_upgrade_pre}
fi
fi
record_step 0
log "The rollback_pre step is executed successfully. "
fi
}
function rollback_bin() {
parses_step
if [[ "$current_step" -lt 3 ]]; then
log "no need do rollback_bin step"
elif [[ "$current_step" -gt 4 ]]; then
die "You should rollback_post first" ${err_rollback_bin}
else
if [[ X"$old_version" == X ]]; then
old_version=$(grep old_version "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
fi
if ! cd "$GAUSS_BACKUP_BASE_PATH"; then
die "$GAUSS_BACKUP_BASE_PATH cannot access" ${err_rollback_bin}
fi
# Once the rollback starts, you must change the status code first.
# Otherwise, the upgrade may continue after the rollback is interrupted.
record_step 3
if ! stop_dbnode; then
die "Stop gaussdb failed" ${err_rollback_bin}
fi
if ! cp -rf ./postgresql.conf_"$old_version" "$GAUSSDATA"/postgresql.conf; then
die "Restore postgresql.conf failed!" ${err_rollback_bin}
fi
if ! cp -rf ./pg_hba.conf_"$old_version" "$GAUSSDATA"/pg_hba.conf; then
die "Restore pg_hba.conf failed!" ${err_rollback_bin}
fi
if [ -f ./pg_filenode.map_$old_version ]; then
if ! cp -rf ./pg_filenode.map_$old_version $GAUSSDATA/global/pg_filenode.map; then
die "Restore pg_filenode.map failed!" ${err_rollback_bin}
fi
if ! cp -rf ./pg_filenode.map.backup_$old_version $GAUSSDATA/global/pg_filenode.map.backup; then
die "Restore pg_filenode.map.backup failed!" ${err_rollback_bin}
fi
fi
log "Restore postgresql.conf, pg_hba.conf successfully."
# when rollback postgresql.conf, upgrade_mode should be set to 2
if [[ X"$big_cfg" == X ]]; then
big_cfg=$(grep big_cfg "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
fi
if [[ "$big_cfg" == "True" ]]; then
if ! set_upgrade_config upgrade_mode 2; then
die "set upgrade_mode to 2 failed" ${err_rollback_bin}
fi
fi
if ! cd "$GAUSS_UPGRADE_BASE_PATH"; then
die "$GAUSS_UPGRADE_BASE_PATH cannot access" ${err_rollback_bin}
fi
record_step 2
log "The rollback_bin step is executed successfully. "
fi
}
function rollback_post() {
if [ X"$dn_role" == X"standby" ] || [ X"$dn_role" == X"cascade_standby" ]; then
record_step 4
log "The rollback_post step is executed successfully."
return 0
fi
parses_step
if [[ "$current_step" -lt 5 ]]; then
log "Cannot do rollback_post step"
else
if [[ X"$big_cfg" == X ]]; then
big_cfg=$(grep big_cfg "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
fi
if [[ "$big_cfg" == "True" ]]; then
if ! check_db_process; then
die "Gaussdb is not running" ${err_rollback_post}
fi
if ! reload_upgrade_config upgrade_mode 2; then
die "set upgrade_mode to 2 failed" ${err_upgrade_post}
fi
record_step 5
if exec_sql "$GAUSS_TMP_PATH"/temp_sql/temp_rollback-post_maindb.sql maindb && exec_sql "$GAUSS_TMP_PATH"/temp_sql/temp_rollback-post_otherdb.sql otherdb; then
debug "rollback post sql successfully"
else
die "rollback post sql failed" ${err_rollback_post}
fi
fi
record_step 4
log "The rollback_post step is executed successfully. "
fi
}
function upgrade_pre() {
parses_step
if [[ "$current_step" -lt 0 ]]; then
die "Step file may be changed invalid" ${err_upgrade_pre}
elif [[ "$current_step" -lt 1 ]]; then
upgrade_pre_step1
upgrade_pre_step2
elif [[ "$current_step" -eq 1 ]]; then
rollback_pre
upgrade_pre_step2
else
log "no need do upgrade_pre step"
fi
}
function cp_dolphin_upgrade_script_step1() {
if ls "$GAUSSHOME"/share/postgresql/extension/ | grep -qE "dolphin--(.*)--(.*)sql" ; then
if cp -f "$GAUSSHOME"/share/postgresql/extension/dolphin--*--*sql "$GAUSS_TMP_PATH"/ ; then
log "cp dolphin upgrade script step1[upgrade_pre] successfully"
else
die "cp dolphin upgrade script step1[upgrade_pre] failed" ${err_upgrade_pre}
fi
fi
}
function cp_dolphin_upgrade_script_step2() {
if ls "$GAUSS_TMP_PATH/" | grep -qE "dolphin--(.*)--(.*)sql" ; then
if cp -f "$GAUSS_TMP_PATH"/dolphin--*--*sql "$GAUSSHOME"/share/postgresql/extension/ ; then
log "cp dolphin upgrade script step1[upgrade_bin] successfully"
else
die "cp dolphin upgrade script step1[upgrade_bin] failed" ${err_upgrade_pre}
fi
fi
}
function upgrade_pre_step1() {
check_disk
check_version
check_cluster_state
if [[ "$big_cfg" == "True" ]]; then
prepare_sql_all
fi
bak_gauss
cp_dolphin_upgrade_script_step1
record_step 1
}
function upgrade_pre_step2() {
if [[ X"$big_cfg" == X ]]; then
big_cfg=$(grep big_cfg "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
fi
if [[ "$big_cfg" == "True" ]]; then
if ! check_db_process; then
die "Gaussdb is not running" ${err_upgrade_pre}
fi
# set upgrade_mode to 2
if ! reload_upgrade_config upgrade_mode 2; then
die "set upgrade_mode to 2 failed" ${err_upgrade_pre}
fi
if exec_sql "$GAUSS_TMP_PATH"/temp_sql/temp_upgrade_maindb.sql maindb && exec_sql "$GAUSS_TMP_PATH"/temp_sql/temp_upgrade_otherdb.sql otherdb; then
debug "exec pre sql successfully"
else
die "exec pre sql failed" ${err_upgrade_pre}
fi
fi
record_step 2
log "The upgrade_pre step is executed successfully. "
}
function upgrade_bin() {
parses_step
cp_dolphin_upgrade_script_step2
if [[ "$current_step" -lt 0 ]]; then
die "Step file may be changed invalid" ${err_upgrade_bin}
elif [[ "$current_step" -lt 2 ]]; then
die "exec upgrade pre first" ${err_upgrade_bin}
elif [[ "$current_step" -gt 3 ]]; then
log "no need do upgrade_bin step"
return
fi
upgrade_bin_check
upgrade_bin_step4
}
function upgrade_bin_check() {
# Before performing the upgrade_bin operation, check if the gaussdb process exists.
# If it exists, it indicates that the gaussdb process was not stopped after the upgrade_pre.
if gs_ctl query -D ${GAUSSDATA} > /dev/null; then
local error_msg="Before performing the upgrade_bin, it is necessary to ensure that the old gaussdb \
process has been stopped, but the current gaussdb is running."
die "$error_msg" ${err_upgrade_bin}
fi
debug "The old process has been stopped; you can proceed with executing upgrade_bin."
}
function upgrade_bin_step4() {
record_step 3
guc_delete
if [[ X"$big_cfg" == X ]]; then
big_cfg=$(grep big_cfg "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
fi
if [[ X"$old_cfg" == X ]]; then
old_cfg=$(grep old_cfg "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
fi
if [[ "$big_cfg" == "True" ]]; then
if ! echo " -u $old_cfg" > "$GAUSSHOME"/bin/start_flag;then
die "Create $GAUSSHOME/bin/start_flag file failed" ${err_upgrade_bin}
fi
if ! start_dbnode "$old_cfg"; then
die "Start gaussdb failed" ${err_upgrade_bin}
fi
fi
record_step 4
log "The upgrade_bin step is executed successfully. "
}
function check_real_gaussdb_version() {
log "Checking the real gaussdb version."
local real_gaussdb_version
real_gaussdb_version=$(gsql -tA -d postgres -p $GAUSS_LISTEN_PORT -c "select version();")
if [[ $? -ne 0 ]]; then
die "Get real gaussdb version failed" ${err_upgrade_bin}
fi
local new_version=""
new_version=`sed -n 3p $UPGRADE_NEW_PKG_PATH/version.cfg`
debug "new_version: $new_version"
debug "real_gaussdb_version: $real_gaussdb_version"
if ! echo "$real_gaussdb_version" | grep "$new_version" > /dev/null; then
die "real gaussdb version is still old!" ${err_upgrade_bin}
fi
log "Check the real gaussdb version successfully."
}
function check_cluster_state() {
log "Checking the cluster state."
debug "dn_role: $dn_role"
if [[ "$dn_role" != "primary" ]]; then
return
fi
gs_ctl query -D ${GAUSSDATA} > ${GAUSS_TMP_PATH}/temp_dn_role
if [[ $? -ne 0 ]]; then
die "Get cluster state failed" ${err_upgrade_bin}
fi
local static_connections=$(grep "static_connections" ${GAUSS_TMP_PATH}/temp_dn_role | awk -F': ' '{print $2}')
local standby_nums=$(grep "sender_pid" ${GAUSS_TMP_PATH}/temp_dn_role -c)
if [[ $standby_nums -lt $static_connections ]]; then
local error_msg="The cluster state is abnormal.\nThe number of standby nodes($standby_nums) is less than \
the number of static connections($static_connections). Please check the standby state."
die "$error_msg" ${err_upgrade_bin}
fi
log "Check the cluster state successfully."
}
function upgrade_post_check() {
check_real_gaussdb_version
check_cluster_state
}
function upgrade_post() {
parses_step
if [[ "$current_step" -lt 0 ]]; then
die "Step file may be changed invalid" ${err_upgrade_post}
elif [[ "$current_step" -lt 4 ]]; then
die "You should exec upgrade_bin first" ${err_upgrade_post}
elif [[ "$current_step" -gt 5 ]]; then
log "no need do upgrade_post step"
return
fi
upgrade_post_check
if [[ "$current_step" -eq 5 ]]; then
rollback_post
fi
# "$current_step" -eq 4
upgrade_post_step56
}
function upgrade_post_step56() {
if [ X"$dn_role" == X"standby" ] || [ X"$dn_role" == X"cascade_standby" ]; then
record_step 6
log "The upgrade_post step is executed successfully."
return 0
fi
if [[ X"$big_cfg" == X ]]; then
big_cfg=$(grep big_cfg "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
fi
if [[ "$big_cfg" == "True" ]]; then
if ! check_db_process; then
die "Guassdb is not running" ${err_upgrade_post}
fi
record_step 5
if exec_sql "$GAUSS_TMP_PATH"/temp_sql/temp_rollback-post_maindb.sql maindb && exec_sql "$GAUSS_TMP_PATH"/temp_sql/temp_rollback-post_otherdb.sql otherdb; then
debug "upgrade-rollback post sql successfully"
else
die "upgrade-rollback post sql failed" ${err_rollback_post}
fi
if exec_sql "$GAUSS_TMP_PATH"/temp_sql/temp_upgrade-post_maindb.sql maindb && exec_sql "$GAUSS_TMP_PATH"/temp_sql/temp_upgrade-post_otherdb.sql otherdb; then
debug "upgrade post sql successfully"
else
die "upgrade post sql failed" ${err_upgrade_post}
fi
fi
record_step 6
log "The upgrade_post step is executed successfully. "
}
function upgrade_commit() {
parses_step
if [[ "$current_step" -eq 0 ]]; then
die "No need commit,upgrade directly" ${err_no_need_commit}
fi
if [[ "$current_step" -ne 6 ]]; then
die "Now you can't commit because the steps are wrong" ${err_upgrade_commit}
fi
if ! rm -f "$GAUSSHOME"/bin/start_flag; then
die "rm $GAUSSHOME/bin/start_flag file failed" ${err_upgrade_commit}
fi
if ! reload_upgrade_config upgrade_mode 0; then
die "set upgrade_mode to 0 failed" ${err_upgrade_commit}
fi
# after commit, need to reset step to 0
record_step 0
# cleanup
rm -rf $GAUSS_TMP_PATH $GAUSS_BACKUP_BASE_PATH
log "The upgrade_commit step is executed successfully."
}
function record_step() {
local record_file="$GAUSS_TMP_PATH"/record_step.txt
if echo "$1" > "$record_file" && chmod 600 "$record_file"; then
debug "record step $1 successfully."
else
die "Write step file failed" ${err_inner_sys}
fi
}
function parses_step() {
if [[ ! -f "$GAUSS_TMP_PATH"/record_step.txt ]]; then
current_step=0
else
if grep -q [^0-6] "$GAUSS_TMP_PATH"/record_step.txt; then
die "$GAUSS_TMP_PATH/record_step.txt may be changed manually" ${err_inner_sys}
else
current_step=$(cat "$GAUSS_TMP_PATH"/record_step.txt)
fi
fi
debug "current_step is $current_step"
}
function query_start_mode() {
parses_step
if [[ "$current_step" -lt 3 ]]; then
log "Start directly"
return 0
fi
if [[ ! -f "$GAUSS_TMP_PATH"/version_flag ]]; then
log "Start directly"
return 0
fi
if grep -Ewq "new_version=\w{8}" "$GAUSS_TMP_PATH"/version_flag ; then
new_version=$(grep new_version "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
if gaussdb -V|grep -wq "$new_version";then
if grep -q "^big_cfg=True" "$GAUSS_TMP_PATH"/version_flag;then
old_cfg=$(grep old_cfg "$GAUSS_TMP_PATH"/version_flag | awk -F= '{print $2}')
log "You must start with -u $old_cfg"
return 0
fi
fi
fi
log "Start directly"
return 0
}
function switch_over() {
local temp_file="${GAUSS_TMP_PATH}/temp_switch_over"
if gs_ctl query -D "$GAUSSDATA" > "$temp_file" && chmod 400 "$temp_file"; then
local_role_temp=$(grep local_role "$temp_file" | head -1 | awk '{print $3}')
db_state_temp=$(grep db_state "$temp_file" | head -1 | awk '{print $3}')
peer_role_temp=$(grep peer_role "$temp_file" | head -1 | awk '{print $3}')
rm -f "$temp_file"
else
die "gs_ctl query -D $GAUSSDATA failed" 1
fi
if [[ "$local_role_temp" = "Standby" ]] && [[ "$db_state_temp" = "Normal" ]] && [[ "$peer_role_temp" = "Primary" ]]; then
log "Current node can do switchover"
if gs_ctl switchover -D "$GAUSSDATA" -f ;then
log "Switchover success"
else
die "Switchover failed"
fi
else
log "no need do switchover"
fi
}