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Further improvements to reduce config reloading

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pull/1158/head
Krzysztof Ksiazek 9 years ago
parent 75bb9b77fa
commit 31e29ddc90
1 changed files with 24 additions and 8 deletions
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32
tools/proxysql_galera_checker.sh
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@ -273,11 +273,19 @@ if [ ${NUMBER_WRITERS_ONLINE} -eq 0 ]; then
do
WSREP_STATUS=$($MYSQL_CMDLINE -h $server -P $port -e "SHOW STATUS LIKE 'wsrep_local_state'" 2>>${ERR_FILE} | tail -1 2>>${ERR_FILE})
echo "`date` Check server $hostgroup:$server:$port for only available node in DONOR state, status $stat , wsrep_local_state $WSREP_STATUS" >> ${ERR_FILE}
if [ "${WSREP_STATUS}" = "2" -a "$stat" != "ONLINE" ]
if [ "${WSREP_STATUS}" = "2" -a "$stat" != "ONLINE" ] # if we are on Donor/Desync an not online in mysql_servers -> proceed
then
change_server_status $HOSTGROUP_WRITER_ID "$server" $port "ONLINE" "WSREP status is DESYNC/DONOR, as this is the only node we will put this one online"
echo "1" > ${RELOAD_CHECK_FILE}
cnt=$(( $cnt + 1 ))
PROXY_RUNTIME_STATUS=$($PROXYSQL_CMDLINE "SELECT status FROM runtime_mysql_servers WHERE hostname='${server}' AND port='${port}' AND hostgroup_id='${hostgroup}'")
if [ "${PROXY_RUNTIME_STATUS}" != "ONLINE" ] # if we are not online in runtime_mysql_servers, proceed to change the server status and reload mysql_servers
then
change_server_status $HOSTGROUP_WRITER_ID "$server" $port "ONLINE" "WSREP status is DESYNC/DONOR, as this is the only node we will put this one online"
echo "1" > ${RELOAD_CHECK_FILE}
cnt=$(( $cnt + 1 ))
else # otherwise (we are already ONLINE in runtime_mysql_servers) no need to reload so let's just remove RELOAD_CHECK_FILE and update it to ONLINE in mysql_servers (in case something would reload it)
rm ${RELOAD_CHECK_FILE}
cnt=$(( $cnt + 1 ))
change_server_status $HOSTGROUP_WRITER_ID "$server" $port "ONLINE" "WSREP status is DESYNC/DONOR, as this is the only node we will put this one online"
fi
fi
safety_cnt=$(( $safety_cnt + 1 ))
done
@ -297,11 +305,19 @@ if [ ${HOSTGROUP_READER_ID} -ne -1 -a ${NUMBER_READERS_ONLINE} -eq 0 ]; then
do
WSREP_STATUS=$($MYSQL_CMDLINE -h $server -P $port -e "SHOW STATUS LIKE 'wsrep_local_state'" 2>>${ERR_FILE} | tail -1 2>>${ERR_FILE})
echo "`date` Check server $hostgroup:$server:$port for only available node in DONOR state, status $stat , wsrep_local_state $WSREP_STATUS" >> ${ERR_FILE}
if [ "${WSREP_STATUS}" = "2" -a "$stat" != "ONLINE" ]
if [ "${WSREP_STATUS}" = "2" -a "$stat" != "ONLINE" ] # if we are on Donor/Desync an not online in mysql_servers -> proceed
then
change_server_status $HOSTGROUP_READER_ID "$server" $port "ONLINE" "WSREP status is DESYNC/DONOR, as this is the only node we will put this one online"
echo "1" > ${RELOAD_CHECK_FILE}
cnt=$(( $cnt + 1 ))
PROXY_RUNTIME_STATUS=$($PROXYSQL_CMDLINE "SELECT status FROM runtime_mysql_servers WHERE hostname='${server}' AND port='${port}' AND hostgroup_id='${hostgroup}'")
if [ "${PROXY_RUNTIME_STATUS}" != "ONLINE" ] # if we are not online in runtime_mysql_servers, proceed to change the server status and reload mysql_servers
then
change_server_status $HOSTGROUP_READER_ID "$server" $port "ONLINE" "WSREP status is DESYNC/DONOR, as this is the only node we will put this one online"
echo "1" > ${RELOAD_CHECK_FILE}
cnt=$(( $cnt + 1 ))
else # otherwise (we are already ONLINE in runtime_mysql_servers) no need to reload so let's just remove RELOAD_CHECK_FILE and update it to ONLINE in mysql_servers (in case something would reload it)
rm ${RELOAD_CHECK_FILE}
cnt=$(( $cnt + 1 ))
change_server_status $HOSTGROUP_READER_ID "$server" $port "ONLINE" "WSREP status is DESYNC/DONOR, as this is the only node we will put this one online"
fi
fi
safety_cnt=$(( $safety_cnt + 1 ))
done

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