zabbix3.2分区表配置
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添加了将近1000台主机，数据库中的历史数据越来越多了。出现了zabbix自带的housekeeper清理历史数据的时候，造成查数据慢并且触发了很多报警信息（比如Zabbix housekeeper processes more than 75% busy）。
housekeeper默认一小时清理一次旧的数据。在server配置文件中这两行可以定义：
HousekeepingFrequency=1 zabbix执行Housekeeping的频率，单位为hours
MaxHousekeeperDelete=500 每次最多删除历史数据的行
但是housekeeper清理过中，会导致数据库负载增高，从而影响读写性能。
所以我们对几个历史数据表做分区表。按照时间（每天）为单位，把历史数据存到各个分区表中，这样做能加快查询速度、快速清理过去一时间的历史数据（删除分区表）
1、先查看每个表所占容量和行数，可以看到history的表很大
MariaDB [zabbix]> select table_name, (data_length+index_length)/1024/1024 as total_mb, table_rows from information_schema.tables where table_schema='zabbix'; +----------------------------+---------------+------------+ | table_name | total_mb | table_rows | +----------------------------+---------------+------------+ | acknowledges | 0.06250000 | 0 | | actions | 0.04687500 | 14 | | alerts | 5.60937500 | 7316 | | application_discovery | 0.04687500 | 0 | | application_prototype | 0.04687500 | 1 | | application_template | 2.37500000 | 13963 | | applications | 1.96875000 | 14035 | | auditlog | 18.54687500 | 100270 | | auditlog_details | 0.42187500 | 2321 | | autoreg_host | 0.03125000 | 0 | | conditions | 0.03125000 | 61 | | config | 0.04687500 | 1 | | corr_condition | 0.03125000 | 0 | | corr_condition_group | 0.03125000 | 0 | | corr_condition_tag | 0.01562500 | 0 | | corr_condition_tagpair | 0.01562500 | 0 | | corr_condition_tagvalue | 0.01562500 | 0 | | corr_operation | 0.03125000 | 0 | | correlation | 0.04687500 | 0 | | dbversion | 0.01562500 | 1 | | dchecks | 0.03125000 | 1 | | dhosts | 0.03125000 | 0 | | drules | 0.04687500 | 1 | | dservices | 0.04687500 | 0 | | escalations | 0.03125000 | 169 | | event_recovery | 14.10937500 | 16990 | | event_tag | 0.03125000 | 0 | | events | 41.09375000 | 35770 | | expressions | 0.03125000 | 6 | | functions | 10.78125000 | 56230 | | globalmacro | 0.03125000 | 1 | | globalvars | 0.01562500 | 0 | | graph_discovery | 0.03125000 | 88 | | graph_theme | 0.03125000 | 2 | | graphs | 6.09375000 | 17348 | | graphs_items | 12.20312500 | 73151 | | group_discovery | 0.03125000 | 0 | | group_prototype | 0.06250000 | 7 | | groups | 0.03125000 | 19 | | history | 1873.62500000 | 17753848 | | history_log | 0.03125000 | 0 | | history_str | 2.07812500 | 3330 | | history_text | 0.07812500 | 594 | | history_uint | 5980.10937500 | 38661029 | | host_discovery | 0.04687500 | 2 | | host_inventory | 0.01562500 | 0 | | hostmacro | 0.03125000 | 0 | | hosts | 0.48437500 | 725 | | hosts_groups | 0.15625000 | 715 | | hosts_templates | 0.15625000 | 859 | | housekeeper | 0.01562500 | 204 | | httpstep | 0.03125000 | 3 | | httpstepitem | 0.04687500 | 9 | | httptest | 0.07812500 | 3 | | httptestitem | 0.04687500 | 9 | | icon_map | 0.04687500 | 0 | | icon_mapping | 0.04687500 | 0 | | ids | 0.01562500 | 43 | | images | 1.53125000 | 191 | | interface | 0.18750000 | 671 | | interface_discovery | 0.03125000 | 0 | | item_application_prototype | 0.04687500 | 1 | | item_condition | 0.21875000 | 1291 | | item_discovery | 0.75000000 | 5656 | | items | 47.15625000 | 98946 | | items_applications | 17.21875000 | 119577 | | maintenances | 0.04687500 | 0 | | maintenances_groups | 0.04687500 | 0 | | maintenances_hosts | 0.04687500 | 0 | | maintenances_windows | 0.04687500 | 0 | | mappings | 0.03125000 | 143 | | media | 0.04687500 | 15 | | media_type | 0.03125000 | 6 | | opcommand | 0.03125000 | 4 | | opcommand_grp | 0.04687500 | 0 | | opcommand_hst | 0.04687500 | 4 | | opconditions | 0.03125000 | 0 | | operations | 0.03125000 | 29 | | opgroup | 0.04687500 | 1 | | opinventory | 0.01562500 | 0 | | opmessage | 0.03125000 | 23 | | opmessage_grp | 0.04687500 | 5 | | opmessage_usr | 0.04687500 | 15 | | optemplate | 0.04687500 | 1 | | problem | 4.32812500 | 17405 | | problem_tag | 0.04687500 | 0 | | profiles | 0.34375000 | 1641 | | proxy_autoreg_host | 0.03125000 | 0 | | proxy_dhistory | 0.03125000 | 0 | | proxy_history | 0.03125000 | 0 | | regexps | 0.03125000 | 5 | | rights | 0.04687500 | 19 | | screen_user | 0.04687500 | 0 | | screen_usrgrp | 0.04687500 | 0 | | screens | 0.04687500 | 14 | | screens_items | 0.03125000 | 51 | | scripts | 0.06250000 | 3 | | service_alarms | 0.04687500 | 0 | | services | 0.03125000 | 0 | | services_links | 0.04687500 | 0 | | services_times | 0.03125000 | 0 | | sessions | 2.01562500 | 5953 | | slides | 0.04687500 | 1 | | slideshow_user | 0.04687500 | 0 | | slideshow_usrgrp | 0.04687500 | 0 | | slideshows | 0.04687500 | 1 | | sysmap_element_url | 0.03125000 | 0 | | sysmap_url | 0.03125000 | 0 | | sysmap_user | 0.04687500 | 0 | | sysmap_usrgrp | 0.04687500 | 0 | | sysmaps | 0.07812500 | 1 | | sysmaps_elements | 0.09375000 | 1 | | sysmaps_link_triggers | 0.04687500 | 0 | | sysmaps_links | 0.06250000 | 0 | | task | 0.01562500 | 0 | | task_close_problem | 0.01562500 | 0 | | timeperiods | 0.01562500 | 0 | | trends | 133.12500000 | 590089 | | trends_uint | 141.07812500 | 472377 | | trigger_depends | 0.04687500 | 65 | | trigger_discovery | 0.03125000 | 106 | | trigger_tag | 0.03125000 | 0 | | triggers | 18.31250000 | 46691 | | users | 0.03125000 | 10 | | users_groups | 0.04687500 | 11 | | usrgrp | 0.03125000 | 12 | | valuemaps | 0.03125000 | 17 | +----------------------------+---------------+------------+ 127 rows in set (1.20 sec)
2、下载分区脚本（适合zabbix 3.2，谢谢网友写的）
[[email protected] ~]# wget https://dl.cactifans.com/zabbix/partitiontables_gt_zbx34.sh
脚本默认详情数据保留30天，趋势数据保留12个月，如需修改，请修改以下内容：
daily_history_min=30
monthly_history_min=12
脚本默认连接数据库信息，更改成你的：
DBHOST=localhost
DBUSER=zabbix
DBPASS=zabbix
赋予执行权限：
[[email protected] ~]# chmod +x partitiontables_gt_zbx34.sh
脚本内容如下：
#!/bin/bash # # This script will partition your zabbix database to improve the efficiency. # It will also create stored procedures to do the necessary housekeeping, # and create a cronjob to do this on a daily basis # # This script inspired by the following: # http://zabbixzone.com/zabbix/partitioning-tables/ # # While the basic SQL is from the above page, this script both creates the necessary # SQL for the desired tables, and can create new partitions as the time goes on # assuming that the cronjob has been properly entered. # # # Who to email with cron output # EMAIL="[email protected]" # # How long to keep the daily history # daily_history_min=30 # # How long to keep the monthly history (months) # monthly_history_min=12 # # Years to create the monthly partitions for # first_year=`date +"%Y"` last_year=$first_year cur_month=`date +"%m"|sed 's/^0*//'` if [ $cur_month -eq 12 ]; then last_year=$((first_year+1)) cur_month=1 fi y=`date +"%Y"` SQL="/tmp/partition.sql" PATHTOCRON="/usr/local/zabbix/cron.d" PATHTOMAILBIN="/usr/bin/mail" DUMP_FILE=/tmp/zabbix.sql function usage { cat <<_EOF_ $0 [-h host][-u user][-p password][-d min_days][-y startyear][-n][-s][-e email_address][-b] -h host database host -u user db user -p password user password -d min_days Minimum number of days of history to keep (default: $daily_history_min) -m min_months Minimum number of months to keep trends (default: $monthly_history_min) -y startyear First year to set up with partitions -n noninteractive Run without questions - careful, make sure you know what is going to happen. Needs my.cnf with correct permissions. -b backup Create backup of DB in $DUMP_FILE before alterations (only works with non-interactive mode, -n) -s simulate Create SQL file that would be executed for examination ($SQL) -e email Email address to receive partition update report (default: $EMAIL) After running this script, don't forget to disable housekeeping if you didn't have the script disable it, and add the following cronjob ### Option: DisableHousekeeping # If set to 1, disables housekeeping. # # Mandatory: no # Range: 0-1 ################### Uncomment and change the following line to 1 in ################### Then restart the zabbix server DisableHousekeeping=1 Cron job 0 0 * * * $PATHTOCRON/housekeeping.sh _EOF_ exit } DBHOST=localhost DBUSER=zabbix DBPASS=zabbix SIMULATE=0 NONINTERACTIVE=0 BACKUP=0 while getopts "m:nsbe:h:u:p:d:y:?h" flag; do case $flag in h) DBHOST=$OPTARG ;; u) DBUSER=$OPTARG ;; p) DBPASS=$OPTARG ;; e) EMAIL=$OPTARG ;; s) SIMULATE=1 ;; n) NONINTERACTIVE=1 ;; b) BACKUP=1 ;; d) h=$OPTARG if [ $h -gt 0 ] 2>/dev/null; then daily_history_min=$h else echo "Invalid daily history min, exiting" exit 1 fi ;; m) h=$OPTARG if [ $h -gt 0 ] 2>/dev/null; then monthly_history_min=$h else echo "Invalid monthly history min, exiting" exit 1 fi ;; y) yy=$OPTARG if [ $yy -lt $y -a $yy -gt 2000 ] 2>/dev/null; then first_year=$yy else echo "Invalid year, exiting" exit 1 fi ;; ?|h) usage ;; esac done shift $((OPTIND-1)) if [ $NONINTERACTIVE != 1 ]; then echo "Ready to partition tables." fi if [ $SIMULATE = 0 ]; then if [ $NONINTERACTIVE = 1 ]; then mysql -B -h $DBHOST -e "GRANT CREATE ROUTINE ON zabbix.* TO '$DBUSER'@'localhost';" # echo "GRANT LOCK TABLES ON zabbix.* TO '${DBUSER}'@'${DBHOST}' IDENTIFIED BY '${DBPASS}';" | mysql -h${DBHOST} -u${DBADMINUSER} --password=${DBADMINPASS} mysql -h $DBHOST -e "GRANT LOCK TABLES ON zabbix.* TO '$DBUSER'@'$DBHOST' IDENTIFIED BY '$DBPASS';" if [ $BACKUP = 1 ]; then mysqldump --opt -h $DBHOST -u $DBUSER -p$DBPASS zabbix --result-file=$DUMP_FILE rc=$? if [ $rc -ne 0 ]; then echo "Error during mysqldump, exit code: $rc" fi fi else echo -e "\nReady to update permissions of Zabbix user to create routines\n" echo -n "Enter root DB user: " read DBADMINUSER echo -n "Enter $DBADMINUSER password: " read DBADMINPASS mysql -B -h $DBHOST -u $DBADMINUSER -p$DBADMINPASS -e "GRANT CREATE ROUTINE ON zabbix.* TO '$DBUSER'@'localhost';" echo -e "\n" echo -ne "\nDo you want to backup the database (recommended) (Y/n): " read yn if [ "$yn" != "n" -a "$yn" != "N" ]; then echo -e "\nEnter output file, press return for default of $DUMP_FILE" read df [ "$df" != "" ] && DUMP_FILE=$df # # Lock tables is needed for a good mysqldump # echo "GRANT LOCK TABLES ON zabbix.* TO '${DBUSER}'@'${DBHOST}' IDENTIFIED BY '${DBPASS}';" | mysql -h${DBHOST} -u${DBADMINUSER} --password=${DBADMINPASS} mysqldump --opt -h ${DBHOST} -u ${DBUSER} -p${DBPASS} zabbix --result-file=${DUMP_FILE} rc=$? if [ $rc -ne 0 ]; then echo "Error during mysqldump, rc: $rc" echo "Do you wish to continue (y/N): " read yn [ "yn" != "y" -a "$yn" != "Y" ] && exit else echo "Mysqldump succeeded!, proceeding with upgrade..." fi else echo "Are you certain you have a backup (y/N): " read yn [ "$yn" != 'y' -a "$yn" != "Y" ] && exit fi fi fi if [ $NONINTERACTIVE = 1 ]; then yn='y' else echo -e "\n\nReady to proceed:" echo -e "\nStarting yearly partioning at: $first_year" echo "and ending at: $last_year" echo "With $daily_history_min days of daily history" echo -e "\n\nReady to proceed (Y/n): " read yn [ "$yn" = 'n' -o "$yn" = "N" ] && exit fi DAILY="history history_log history_str history_text history_uint" DAILY_IDS="itemid id itemid id itemid" MONTHLY="trends trends_uint" #"acknowledges alerts auditlog events service_alarms" MONTHLY_IDS="" TABLES="$DAILY $MONTHLY" IDS="$DAILY_IDS $MONTHLY_IDS" if [ $NONINTERACTIVE != 1 ]; then echo "Use zabbix; SELECT 'Altering tables';" >$SQL else echo "Use zabbix;" >$SQL fi cnt=0 for i in $TABLES; do if [ $NONINTERACTIVE != 1 ]; then echo "Altering table: $i" echo "SELECT '$i';" >>$SQL fi cnt=$((cnt+1)) case $i in history_log) #echo "ALTER TABLE $i DROP KEY history_log_2;" >>$SQL #echo "ALTER TABLE $i ADD KEY history_log_2(itemid, id);" >>$SQL #echo "ALTER TABLE $i DROP PRIMARY KEY ;" >>$SQL #id=`echo $IDS | cut -f$cnt -d" "` #echo "ALTER TABLE $i ADD KEY ${i}id ($id);" >>$SQL ;; history_text) #echo "ALTER TABLE $i DROP KEY history_text_2;" >>$SQL #echo "ALTER TABLE $i ADD KEY history_text_2 (itemid, clock);" >>$SQL #echo "ALTER TABLE $i DROP PRIMARY KEY ;" >>$SQL #id=`echo $IDS | cut -f$cnt -d" "` #echo "ALTER TABLE $i ADD KEY ${i}id ($id);" >>$SQL ;; esac done echo -en "\n" >>$SQL for i in $MONTHLY; do if [ $NONINTERACTIVE != 1 ]; then echo "Creating monthly partitions for table: $i" echo "SELECT '$i';" >>$SQL fi echo "ALTER TABLE $i PARTITION BY RANGE( clock ) (" >>$SQL for y in `seq $first_year $last_year`; do last_month=12 [ $y -eq $last_year ] && last_month=$((cur_month+1)) for m in `seq 1 $last_month`; do [ $m -lt 10 ] && m="0$m" ms=`date +"%Y-%m-01" -d "$m/01/$y +1 month"` pname="p${y}${m}" echo -n "PARTITION $pname VALUES LESS THAN (UNIX_TIMESTAMP(\"$ms 00:00:00\"))" >>$SQL [ $m -ne $last_month -o $y -ne $last_year ] && echo -n "," >>$SQL echo -ne "\n" >>$SQL done done echo ");" >>$SQL done for i in $DAILY; do if [ $NONINTERACTIVE != 1 ]; then echo "Creating daily partitions for table: $i" echo "SELECT '$i';" >>$SQL fi echo "ALTER TABLE $i PARTITION BY RANGE( clock ) (" >>$SQL for d in `seq -$daily_history_min 2`; do ds=`date +"%Y-%m-%d" -d "$d day +1 day"` pname=`date +"%Y%m%d" -d "$d day"` echo -n "PARTITION p$pname VALUES LESS THAN (UNIX_TIMESTAMP(\"$ds 00:00:00\"))" >>$SQL [ $d -ne 2 ] && echo -n "," >>$SQL echo -ne "\n" >>$SQL done echo ");" >>$SQL done ############################################################### if [ $NONINTERACTIVE != 1 ]; then cat >>$SQL <<_EOF_ SELECT "Installing procedures"; _EOF_ fi cat >>$SQL <<_EOF_ /************************************************************** MySQL Auto Partitioning Procedure for Zabbix 1.8 http://zabbixzone.com/zabbix/partitioning-tables/ Author: Ricardo Santos (rsantos at gmail.com) Version: 20110518 **************************************************************/ DELIMITER // DROP PROCEDURE IF EXISTS zabbix.create_zabbix_partitions; // CREATE PROCEDURE zabbix.create_zabbix_partitions () BEGIN _EOF_ ############################################################### for i in $DAILY; do echo " CALL zabbix.create_next_partitions(\"zabbix\",\"$i\");" >>$SQL echo " CALL zabbix.drop_old_partitions(\"zabbix\",\"$i\");" >>$SQL done echo -en "\n" >>$SQL for i in $MONTHLY; do echo " CALL zabbix.create_next_monthly_partitions(\"zabbix\",\"$i\");" >>$SQL echo " CALL zabbix.drop_old_monthly_partitions(\"zabbix\",\"$i\");" >>$SQL done ############################################################### cat >>$SQL <<_EOF_ END // DROP PROCEDURE IF EXISTS zabbix.create_next_partitions; // CREATE PROCEDURE zabbix.create_next_partitions (SCHEMANAME varchar(64), TABLENAME varchar(64)) BEGIN DECLARE NEXTCLOCK timestamp; DECLARE PARTITIONNAME varchar(16); DECLARE CLOCK int; SET @totaldays = 7; SET @i = 1; createloop: LOOP SET NEXTCLOCK = DATE_ADD(NOW(),INTERVAL @i DAY); SET PARTITIONNAME = DATE_FORMAT( NEXTCLOCK, 'p%Y%m%d' ); SET CLOCK = UNIX_TIMESTAMP(DATE_FORMAT(DATE_ADD( NEXTCLOCK ,INTERVAL 1 DAY),'%Y-%m-%d 00:00:00')); CALL zabbix.create_partition( SCHEMANAME, TABLENAME, PARTITIONNAME, CLOCK ); SET @[email protected]+1; IF @i > @totaldays THEN LEAVE createloop; END IF; END LOOP; END // DROP PROCEDURE IF EXISTS zabbix.drop_old_partitions; // CREATE PROCEDURE zabbix.drop_old_partitions (SCHEMANAME varchar(64), TABLENAME varchar(64)) BEGIN DECLARE OLDCLOCK timestamp; DECLARE PARTITIONNAME varchar(16); DECLARE CLOCK int; SET @mindays = $daily_history_min; SET @maxdays = @mindays+4; SET @i = @maxdays; droploop: LOOP SET OLDCLOCK = DATE_SUB(NOW(),INTERVAL @i DAY); SET PARTITIONNAME = DATE_FORMAT( OLDCLOCK, 'p%Y%m%d' ); CALL zabbix.drop_partition( SCHEMANAME, TABLENAME, PARTITIONNAME ); SET @[email protected]; IF @i <= @mindays THEN LEAVE droploop; END IF; END LOOP; END // DROP PROCEDURE IF EXISTS zabbix.create_next_monthly_partitions; // CREATE PROCEDURE zabbix.create_next_monthly_partitions (SCHEMANAME varchar(64), TABLENAME varchar(64)) BEGIN DECLARE NEXTCLOCK timestamp; DECLARE PARTITIONNAME varchar(16); DECLARE CLOCK int; SET @totalmonths = 3; SET @i = 1; createloop: LOOP SET NEXTCLOCK = DATE_ADD(NOW(),INTERVAL @i MONTH); SET PARTITIONNAME = DATE_FORMAT( NEXTCLOCK, 'p%Y%m' ); SET CLOCK = UNIX_TIMESTAMP(DATE_FORMAT(DATE_ADD( NEXTCLOCK ,INTERVAL 1 MONTH),'%Y-%m-01 00:00:00')); CALL zabbix.create_partition( SCHEMANAME, TABLENAME, PARTITIONNAME, CLOCK ); SET @[email protected]+1; IF @i > @totalmonths THEN LEAVE createloop; END IF; END LOOP; END // DROP PROCEDURE IF EXISTS zabbix.drop_old_monthly_partitions; // CREATE PROCEDURE zabbix.drop_old_monthly_partitions (SCHEMANAME varchar(64), TABLENAME varchar(64)) BEGIN DECLARE OLDCLOCK timestamp; DECLARE PARTITIONNAME varchar(16); DECLARE CLOCK int; SET @minmonths = $monthly_history_min; SET @maxmonths = @minmonths+24; SET @i = @maxmonths; droploop: LOOP SET OLDCLOCK = DATE_SUB(NOW(),INTERVAL @i MONTH); SET PARTITIONNAME = DATE_FORMAT( OLDCLOCK, 'p%Y%m' ); CALL zabbix.drop_partition( SCHEMANAME, TABLENAME, PARTITIONNAME ); SET @[email protected]; IF @i <= @minmonths THEN LEAVE droploop; END IF; END LOOP; END // DROP PROCEDURE IF EXISTS zabbix.create_partition; // CREATE PROCEDURE zabbix.create_partition (SCHEMANAME varchar(64), TABLENAME varchar(64), PARTITIONNAME varchar(64), CLOCK int) BEGIN DECLARE RETROWS int; SELECT COUNT(1) INTO RETROWS FROM information_schema.partitions WHERE table_schema = SCHEMANAME AND table_name = TABLENAME AND partition_name = PARTITIONNAME; IF RETROWS = 0 THEN SELECT CONCAT( "create_partition(", SCHEMANAME, ",", TABLENAME, ",", PARTITIONNAME, ",", CLOCK, ")" ) AS msg; SET @sql = CONCAT( 'ALTER TABLE ', SCHEMANAME, '.', TABLENAME, ' ADD PARTITION (PARTITION ', PARTITIONNAME, ' VALUES LESS THAN (', CLOCK, '));' ); PREPARE STMT FROM @sql; EXECUTE STMT; DEALLOCATE PREPARE STMT; END IF; END // DROP PROCEDURE IF EXISTS zabbix.drop_partition; // CREATE PROCEDURE zabbix.drop_partition (SCHEMANAME varchar(64), TABLENAME varchar(64), PARTITIONNAME varchar(64)) BEGIN DECLARE RETROWS int; SELECT COUNT(1) INTO RETROWS FROM information_schema.partitions WHERE table_schema = SCHEMANAME AND table_name = TABLENAME AND partition_name = PARTITIONNAME; IF RETROWS = 1 THEN SELECT CONCAT( "drop_partition(", SCHEMANAME, ",", TABLENAME, ",", PARTITIONNAME, ")" ) AS msg; SET @sql = CONCAT( 'ALTER TABLE ', SCHEMANAME, '.', TABLENAME, ' DROP PARTITION ', PARTITIONNAME, ';' ); PREPARE STMT FROM @sql; EXECUTE STMT; DEALLOCATE PREPARE STMT; END IF; END // DELIMITER ; _EOF_ if [ $SIMULATE = 1 ]; then exit 0 fi if [ $NONINTERACTIVE = 1 ]; then yn='y' else echo -e "\n\nReady to apply script to database, this may take a while.(Y/n): " read yn fi if [ "$yn" != "n" -a "$yn" != "N" ]; then mysql --skip-column-names -h ${DBHOST} -u ${DBUSER} -p${DBPASS} <$SQL fi conf=/etc/zabbix/zabbix_server.conf if [ $NONINTERACTIVE = 1 ]; then yn='y' else echo -e "\nIf Zabbix Version = 2.0 \nDo you want to update the /etc/zabbix/zabbix_server.conf" echo -n "to disable housekeeping (Y/n): " read yn fi if [ "$yn" != "n" -a "$yn" != "N" ]; then cp $conf ${conf}.bak sed -i "s/^# DisableHousekeeping=0/DisableHousekeeping=1/" $conf sed -i "s/^DisableHousekeeping=0/DisableHousekeeping=1/" $conf /etc/init.d/zabbix-server stop sleep 5 /etc/init.d/zabbix-server start 2>&1 > /dev/null fi tmpfile=/tmp/cron$$ if [ $NONINTERACTIVE = 1 ]; then yn='y' else echo -ne "\nDo you want to update the crontab (Y/n): " read yn fi if [ "$yn" != "n" -a "$yn" != "N" ]; then where= while [ "$where" = "" ]; do if [ $NONINTERACTIVE = 1 ]; then where='Y' else echo "The crontab entry can be either in /etc/cron.daily, or added" echo -e "to the crontab for root\n" echo -n "Do you want to add this to the /etc/cron.daily directory (Y/n): " read where fi [ "$where" = "" -o "$where" = "y" ] && where="Y" if [ "$where" != "y" -a "$where" != "Y" -a "$where" != "n" -a "$where" != "N" ]; then where="" echo "Response not recognized, please try again" fi done if [ $NONINTERACTIVE != 1 ]; then echo -en "\nEnter email of who should get the daily housekeeping reports: " read mailto fi [ "$mailto" = "" ] && mailto=$EMAIL mkdir -p $PATHTOCRON cat >$PATHTOCRON/housekeeping.sh <<_EOF_ #!/bin/bash MAILTO=$mailto tmpfile=/tmp/housekeeping\$\$ date >\$tmpfile /usr/bin/mysql --skip-column-names -B -h localhost -u${DBUSER} -p${DBPASS} zabbix -e "CALL create_zabbix_partitions();" >>\$tmpfile 2>&1 $PATHTOMAILBIN -s "Zabbix MySql Partition Housekeeping" \$MAILTO <\$tmpfile rm -f \$tmpfile _EOF_ chmod +x $PATHTOCRON/housekeeping.sh chown -R zabbix.zabbix /usr/local/zabbix if [ "$where" = "Y" ]; then cat >/etc/cron.daily/zabbixhousekeeping <<_EOF_ #!/bin/bash $PATHTOCRON/housekeeping.sh _EOF_ chmod +x /etc/cron.daily/zabbixhousekeeping else crontab -l >$tmpfile cat >>$tmpfile <<_EOF_ 0 0 * * * $PATHTOCRON/housekeeping.sh _EOF_ crontab $tmpfile rm $tmpfile fi fi
网上还有一些脚本，是手动执行一些mysql命令来分表，没试过。
比如：https://www.cnblogs.com/w787815/p/8249303.html
3、执行分区脚本
备份数据库： [[email protected] ~]# mysqldump -uroot -p zabbix>/root/zabbix_$(date +%F).sql 停止数据库： [[email protected] ~]# systemctl stop zabbix-server 查看数据库状态： [[email protected] ~]# systemctl status zabbix-server
执行脚本：
[[email protected] ~]# ./partitiontables_gt_zbx34.sh Ready to partition tables. Ready to update permissions of Zabbix user to create routines #mysql的root帐号和密码： Enter root DB user: root Enter root password: 123456 #备份数据库的操作，已经手动备份： Do you want to backup the database (recommended) (Y/n): n Are you certain you have a backup (y/N): y Ready to proceed: Starting yearly partioning at: 2018 and ending at: 2018 With 30 days of daily history Ready to proceed (Y/n): y Altering table: history Altering table: history_log Altering table: history_str Altering table: history_text Altering table: history_uint Altering table: trends Altering table: trends_uint Creating monthly partitions for table: trends Creating monthly partitions for table: trends_uint Creating daily partitions for table: history Creating daily partitions for table: history_log Creating daily partitions for table: history_str Creating daily partitions for table: history_text Creating daily partitions for table: history_uint Ready to apply script to database, this may take a while.(Y/n): y Altering tables history history_log history_str history_text history_uint trends trends_uint trends trends_uint history history_log history_str history_text history_uint Installing procedures If Zabbix Version = 2.0 Do you want to update the /etc/zabbix/zabbix_server.conf to disable housekeeping (Y/n): n Do you want to update the crontab (Y/n): y The crontab entry can be either in /etc/cron.daily, or added to the crontab for root Do you want to add this to the /etc/cron.daily directory (Y/n): y #设置清理报告通知邮箱： Enter email of who should get the daily housekeeping reports: [email protected]
如果您顺序运行到这里，那么恭喜你成功了。
4、确认定时任务
上面的脚本会在/etc/cron.daily目录下生成一个名称为zabbixhousekeeping的脚本：
[[email protected] ~]# cat /etc/cron.daily/zabbixhousekeeping #!/bin/bash /usr/local/zabbix/cron.d/housekeeping.sh
上面的脚本会在/usr/local/zabbix/cron.d/目录下生成一个名称为housekeeping.sh脚本。
[[email protected] ~]# cat /usr/local/zabbix/cron.d/housekeeping.sh #!/bin/bash [email protected] tmpfile=/tmp/housekeeping$$ date >$tmpfile /usr/bin/mysql --skip-column-names -B -h localhost -uzabbix -pzabbix zabbix -e "CALL create_zabbix_partitions();" >>$tmpfile 2>&1 /usr/bin/mail -s "Zabbix MySql Partition Housekeeping" $MAILTO <$tmpfile rm -f $tmpfile
这样的话，每天凌晨大概3点左右会执行，并且用mail程序发送执行结果到上面的你指定的邮箱。可以看到删除过期的数据分区表，并建立新的分区表。
5、确认脚本执行效果
执行以下SQL语句查看histroy表的分区情况：
MariaDB [(none)]> use zabbix; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed MariaDB [zabbix]> select -> partition_name part, -> partition_expression expr, -> partition_description descr, -> table_rows -> from information_schema.partitions where -> table_schema = schema() -> and table_name='history'; +-----------+--------+------------+------------+ | part | expr | descr | table_rows | +-----------+--------+------------+------------+ | p20180219 | clock | 1519056000 | 3757 | | p20180220 | clock | 1519142400 | 6455 | | p20180221 | clock | 1519228800 | 6887 | | p20180222 | clock | 1519315200 | 6455 | | p20180223 | clock | 1519401600 | 6887 | | p20180224 | clock | 1519488000 | 6574 | | p20180225 | clock | 1519574400 | 6455 | | p20180226 | clock | 1519660800 | 6887 | | p20180227 | clock | 1519747200 | 6455 | | p20180228 | clock | 1519833600 | 6887 | | p20180301 | clock | 1519920000 | 6887 | | p20180302 | clock | 1520006400 | 6574 | | p20180303 | clock | 1520092800 | 5720 | | p20180304 | clock | 1520179200 | 6161 | | p20180305 | clock | 1520265600 | 6574 | | p20180306 | clock | 1520352000 | 6513 | | p20180307 | clock | 1520438400 | 6574 | | p20180308 | clock | 1520524800 | 6469 | | p20180309 | clock | 1520611200 | 6574 | | p20180310 | clock | 1520697600 | 6030 | | p20180311 | clock | 1520784000 | 6161 | | p20180312 | clock | 1520870400 | 6455 | | p20180313 | clock | 1520956800 | 6887 | | p20180314 | clock | 1521043200 | 234759 | | p20180315 | clock | 1521129600 | 442278 | | p20180316 | clock | 1521216000 | 441965 | | p20180317 | clock | 1521302400 | 443530 | | p20180318 | clock | 1521388800 | 441965 | | p20180319 | clock | 1521475200 | 441652 | | p20180320 | clock | 1521561600 | 2345005 | | p20180321 | clock | 1521648000 | 12088382 | | p20180322 | clock | 1521734400 | 0 | | p20180323 | clock | 1521820800 | 0 | +-----------+--------+------------+------------+ 33 rows in set (0.83 sec)
分区表成功，启动zabbix-server服务。
6、取消housekeeper清理
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