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Merging #981 into 1.4.2

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pull/1144/head
René Cannaò 9 years ago
parent 238ca17f6d
commit 02cbe18284
1 changed files with 26 additions and 8 deletions
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34
tools/proxysql_galera_checker.sh
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@ -18,8 +18,8 @@ Usage: $0 <hostgroup_id write> [hostgroup_id read] [number writers] [writers are
- HOSTGROUP READERS (optional) (0..) The hostgroup_id that contains nodes that will server 'reads'
- NUMBER WRITERS (optional) (0..) Maximum number of write hostgroup_id node that can be marked ONLINE
When 0 (default), all nodes can be marked ONLINE
- WRITERS ARE READERS (optional) (0|1) When 1 (default), ONLINE nodes in write hostgroup_id will prefer
to be ONLINE also in read hostgroup_id
- WRITERS ARE READERS (optional) (0|1) When 1 (default), ONLINE nodes in write hostgroup_id will prefer not
to be ONLINE in read hostgroup_id
- LOG_FILE (optional) file logfile where node state checks & changes are written to (verbose)
@ -47,7 +47,9 @@ HOSTGROUP_READER_ID="${2:--1}"
NUMBER_WRITERS="${3:-0}"
WRITER_IS_READER="${4:-1}"
ERR_FILE="${5:-/dev/null}"
RELOAD_CHECK_FILE="/var/lib/proxysql/reload"
echo "0" > ${RELOAD_CHECK_FILE}
if [ "$1" = '-h' -o "$1" = '--help' -o -z "$1" ]
then
@ -129,6 +131,8 @@ do
else
NUMBER_WRITERS_ONLINE=$(( $NUMBER_WRITERS_ONLINE + 1 ))
change_server_status $HOSTGROUP_WRITER_ID "$server" $port "OFFLINE_SOFT" "max write nodes reached (${NUMBER_WRITERS})"
echo "1" > ${RELOAD_CHECK_FILE}
fi
fi
@ -139,10 +143,12 @@ do
if [ $NUMBER_WRITERS_ONLINE -lt $NUMBER_WRITERS ]; then
NUMBER_WRITERS_ONLINE=$(( $NUMBER_WRITERS_ONLINE + 1 ))
change_server_status $HOSTGROUP_WRITER_ID "$server" $port "ONLINE" "{NUMBER_WRITERS_ONLINE} of ${NUMBER_WRITERS} write nodes"
echo "1" > ${RELOAD_CHECK_FILE}
else
NUMBER_WRITERS_ONLINE=$(( $NUMBER_WRITERS_ONLINE + 1 ))
if [ "$stat" != "OFFLINE_SOFT" ]; then
change_server_status $HOSTGROUP_WRITER_ID "$server" $port "OFFLINE_SOFT" "max write nodes reached (${NUMBER_WRITERS})"
echo "1" > ${RELOAD_CHECK_FILE}
else
echo "`date` server $hostgroup:$server:$port is already OFFLINE_SOFT, max write nodes reached (${NUMBER_WRITERS})" >> ${ERR_FILE}
@ -151,13 +157,15 @@ do
# we do not have to limit
elif [ $NUMBER_WRITERS -eq 0 ] ; then
change_server_status $HOSTGROUP_WRITER_ID "$server" $port "ONLINE" "Changed state, marking write node ONLINE"
echo "1" > ${RELOAD_CHECK_FILE}
fi
fi
# WSREP status is not ok, but the node is marked online, we should put it offline
if [ "${WSREP_STATUS}" != "4" -a "${WSREP_STATUS}" != "2" -a "$stat" = "ONLINE" ]; then
if [ "${WSREP_STATUS}" != "4" -a "$stat" = "ONLINE" ]; then
change_server_status $HOSTGROUP_WRITER_ID "$server" $port "OFFLINE_SOFT" "WSREP status is ${WSREP_STATUS} which is not ok"
elif [ "${WSREP_STATUS}" != "4" -a "${WSREP_STATUS}" != "2" -a "$stat" = "OFFLINE_SOFT" ]; then
echo "1" > ${RELOAD_CHECK_FILE}
elif [ "${WSREP_STATUS}" != "4" -a "$stat" = "OFFLINE_SOFT" ]; then
echo "`date` server $hostgroup:$server:$port is already OFFLINE_SOFT, WSREP status is ${WSREP_STATUS} which is not ok" >> ${ERR_FILE}
fi
@ -209,10 +217,12 @@ if [ ${HOSTGROUP_READER_ID} -ne -1 ]; then
if [ "${WSREP_STATUS}" = "4" -a "$stat" != "ONLINE" ] ; then
change_server_status $HOSTGROUP_READER_ID "$server" $port "ONLINE" "marking ONLINE write node as read ONLINE state, not enough non-ONLINE readers found"
echo "1" > ${RELOAD_CHECK_FILE}
fi
else
if [ "${WSREP_STATUS}" = "4" -a "$stat" == "ONLINE" ] ; then
change_server_status $HOSTGROUP_READER_ID "$server" $port "OFFLINE_SOFT" "making ONLINE writer node as read OFFLINE_SOFT as well because writers should not be readers"
echo "1" > ${RELOAD_CHECK_FILE}
fi
if [ "${WSREP_STATUS}" = "4" -a "$stat" != "ONLINE" ] ; then
@ -228,6 +238,7 @@ if [ ${HOSTGROUP_READER_ID} -ne -1 ]; then
# WSREP status OK, but node is not marked ONLINE
if [ "${WSREP_STATUS}" = "4" -a "$stat" != "ONLINE" ] ; then
change_server_status $HOSTGROUP_READER_ID "$server" $port "ONLINE" "changed state, making read node ONLINE"
echo "1" > ${RELOAD_CHECK_FILE}
OFFLINE_READERS_FOUND=$(( $OFFLINE_READERS_FOUND + 1 ))
fi
fi
@ -235,6 +246,7 @@ if [ ${HOSTGROUP_READER_ID} -ne -1 ]; then
# WSREP status is not ok, but the node is marked online, we should put it offline
if [ "${WSREP_STATUS}" != "4" -a "$stat" = "ONLINE" ]; then
change_server_status $HOSTGROUP_READER_ID "$server" $port "OFFLINE_SOFT" "WSREP status is ${WSREP_STATUS} which is not ok"
echo "1" > ${RELOAD_CHECK_FILE}
elif [ "${WSREP_STATUS}" != "4" -a "$stat" = "OFFLINE_SOFT" ]; then
echo "`date` server $hostgroup:$server:$port is already OFFLINE_SOFT, WSREP status is ${WSREP_STATUS} which is not ok" >> ${ERR_FILE}
fi
@ -264,6 +276,7 @@ if [ ${NUMBER_WRITERS_ONLINE} -eq 0 ]; then
if [ "${WSREP_STATUS}" = "2" -a "$stat" != "ONLINE" ]
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" > ${RELOAD_CHECK_FILE}
cnt=$(( $cnt + 1 ))
fi
safety_cnt=$(( $safety_cnt + 1 ))
@ -277,7 +290,7 @@ cnt=0
if [ ${HOSTGROUP_READER_ID} -ne -1 -a ${NUMBER_READERS_ONLINE} -eq 0 ]; then
echo "`date` ###### TRYING TO FIX MISSING READERS ######"
echo "`date` --> No readers found, Trying to enable last available node of the cluster (in Donor/Desync state) or pick the master" >> ${ERR_FILE}
$PROXYSQL_CMDLINE "SELECT hostgroup_id, hostname, port, status FROM mysql_servers WHERE hostgroup_id IN ($HOSTGROUP_WRITER_ID) AND status <> 'OFFLINE_HARD'" | while read hostgroup server port stat
$PROXYSQL_CMDLINE "SELECT hostgroup_id, hostname, port, status FROM mysql_servers WHERE hostgroup_id IN ($HOSTGROUP_READER_ID) AND status <> 'OFFLINE_HARD'" | while read hostgroup server port stat
do
safety_cnt=0
while [ ${cnt} -eq 0 -a ${safety_cnt} -lt 5 ]
@ -286,7 +299,8 @@ if [ ${HOSTGROUP_READER_ID} -ne -1 -a ${NUMBER_READERS_ONLINE} -eq 0 ]; then
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" ]
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"
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" > ${RELOAD_CHECK_FILE}
cnt=$(( $cnt + 1 ))
fi
safety_cnt=$(( $safety_cnt + 1 ))
@ -295,8 +309,12 @@ if [ ${HOSTGROUP_READER_ID} -ne -1 -a ${NUMBER_READERS_ONLINE} -eq 0 ]; then
fi
if [ $(cat ${RELOAD_CHECK_FILE}) -ne 0 ] ; then
echo "`date` ###### Loading mysql_servers config into runtime ######" >> ${ERR_FILE}
$PROXYSQL_CMDLINE "LOAD MYSQL SERVERS TO RUNTIME;" 2>> ${ERR_FILE}
else
echo "`date` ###### Not loading mysql_servers, no change needed ######" >> ${ERR_FILE}
fi
echo "`date` ###### Loading mysql_servers config into runtime ######" >> ${ERR_FILE}
$PROXYSQL_CMDLINE "LOAD MYSQL SERVERS TO RUNTIME;" 2>> ${ERR_FILE}
exit 0

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