Redis automated installation and cluster realization

Redis instance installation

Installation: automatically extract the setup packets according to the installation path is compiled, the data is copied to the path profile template instance Redis way, according to the port number of the profile template

Configuration files, shell script, install package

Parameter 1: basedir, redis installation package path

Parameter 2: Example installation path

Parameter 3: installation package

Parameter 4: port number of installations

#!/bin/bash
set -e
if [ $# -lt 4 ]; then
        echo "$(basename $0): Missing script argument"
        echo "$(installdir $0) [installfilename] [port] "
        exit 9
fi
PotInUse=`netstat -anp |  awk '{print $4}'  | grep $4 | wc -l`
if [ $PotInUse -gt 0 ];then
  echo "ERROR" $4 "Port is used by another process!"
  exit 9
fi
basedir=$1
installdir=$2
installfilename=$3
port=$4
cd $basedir
tar -zxvf $installfilename.tar.gz  >/dev/null 2>&1 &
cd $installfilename
mkdir -p $installdir
make PREFIX=$installdir install
sleep 1s
cp $basedir/redis.conf $installdir

sed -i "s/instance_port/$port/g"  $installdir/redis.conf
sleep 1s
cd $installdir
./bin/redis-server redis.conf >/dev/null 2>&1 &

Profile template

################################## INCLUDES ###################################
# include /path/to/local.conf
# include /path/to/other.conf

################################## MODULES #####################################
# loadmodule /path/to/my_module.so
# loadmodule /path/to/other_module.so

################################## NETWORK #####################################
bind 127.0.0.1 & your ip
port instance_port
tcp-backlog 511
timeout 0
tcp-keepalive 300

################################# GENERAL #####################################
daemonize yes
supervised no
pidfile ./redis_instance_port.pid
loglevel notice
logfile ./redis_log.log
databases 16
always-show-logo yes

################################ SNAPSHOTTING  ################################
save 900 1
save 300 10
save 60 10000

stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir ./

################################# REPLICATION #################################
# masterauth <master-password>
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100

################################## SECURITY ###################################
requirepass your_passwrod

################################### CLIENTS ####################################
# maxclients 10000

############################## MEMORY MANAGEMENT ################################
# maxmemory <bytes>
# maxmemory-policy noeviction
# maxmemory-samples 5
# replica-ignore-maxmemory yes

############################# LAZY FREEING ####################################
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no

############################## APPEND ONLY MODE ###############################
appendonly no

appendfilename "appendonly.aof"

# appendfsync always
appendfsync everysec
# appendfsync no

no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes

CONTACT ################################ Scripting ################ ###############
taking time-limit 5000

################################ REDIS CLUSTER  ###############################
cluster-enabled yes
# cluster-replica-validity-factor 10
# cluster-require-full-coverage yes
# cluster-replica-no-failover no


########################## CLUSTER DOCKER/NAT support  ########################


################################## SLOW LOG ###################################
slowlog-log-slower-than 10000
slowlog-max-len 128

################################ LATENCY MONITOR ##############################
latency-monitor-threshold 0

############################# EVENT NOTIFICATION ##############################
notify-keyspace-events ""

############################### ADVANCED CONFIG ###############################
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
# client-query-buffer-limit 1gb
# proto-max-bulk-len 512mb
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes


########################### ACTIVE DEFRAGMENTATION #######################

# Enabled active defragmentation
# activedefrag yes
# Minimum amount of fragmentation waste to start active defrag
# active-defrag-ignore-bytes 100mb
# Minimum percentage of fragmentation to start active defrag
# active-defrag-threshold-lower 10
# Maximum percentage of fragmentation at which we use maximum effort
# active-defrag-threshold-upper 100
# Minimal effort for defrag in CPU percentage
# active-defrag-cycle-min 5
# Maximal effort for defrag in CPU percentage
# active-defrag-cycle-max 75
# Maximum number of set/hash/zset/list fields that will be processed from
# the main dictionary scan
# active-defrag-max-scan-fields 1000

Installation example
sh redis_install.sh / usr / local / redis / / usr / local / redis5 / redis9008 / redis-5.0.4 9008

Redi example of the directory structure

Based on Python automated cluster, initialization of the node node_1 ~ node_6, node instance needs to trunked mode, three leading and three from the cluster automation, distribution slots, is added, from about 3 seconds to complete node

import redis

#master
node_1 = {'host': '127.0.0.1', 'port': 9001, 'password': '***'}
node_2 = {'host': '127.0.0.1', 'port': 9002, 'password': '***'}
node_3 = {'host': '127.0.0.1', 'port': 9003, 'password': '***'}
#slave
node_4 = {'host': '127.0.0.1', 'port': 9004, 'password': '***'}
node_5 = {'host': '127.0.0.1', 'port': 9005, 'password': '***'}
node_6 = {'host': '127.0.0.1', 'port': 9006, 'password': '***'}

redis_conn_1 = redis.StrictRedis(host=node_1["host"], port=node_1["port"], password=node_1["password"])
redis_conn_2 = redis.StrictRedis(host=node_2["host"], port=node_2["port"], password=node_2["password"])
redis_conn_3 = redis.StrictRedis(host=node_3["host"], port=node_3["port"], password=node_3["password"])

# cluster meet
redis_conn_1.execute_command("cluster meet {0} {1}".format(node_2["host"],node_2["port"]))
redis_conn_1.execute_command("cluster meet {0} {1}".format(node_3["host"],node_3["port"]))
print('#################flush slots #################')
redis_conn_1.execute_command('cluster flushslots')
redis_conn_2.execute_command('cluster flushslots')
redis_conn_3.execute_command('cluster flushslots')
print('#################add slots#################')
for i in range(0,16383+1):
    if i <= 5461:
        try:
            redis_conn_1.execute_command('cluster addslots {0}'.format(i))
        except:
            print('cluster addslots {0}'.format(i) +' error')
    elif 5461 < i and i <= 10922:
        try:
            redis_conn_2.execute_command('cluster addslots {0}'.format(i))
        except:
            print('cluster addslots {0}'.format(i) + ' error')
    elif 10922 < i:
        try:
            redis_conn_3.execute_command('cluster addslots {0}'.format(i))
        except:
            print('cluster addslots {0}'.format(i) + ' error')
print()
print('#################cluster status#################')
print()
print('##################'+str(node_1["host"])+':'+str(node_1["port"])+'##################')
print(str(redis_conn_1.execute_command('cluster info'), encoding = "utf-8").split("\n")[0])
print('##################'+str(node_2["host"])+':'+str(node_2["port"])+'##################')
print(str(redis_conn_1.execute_command('cluster info'), encoding = "utf-8").split("\n")[0])
print('##################'+str(node_3["host"])+':'+str(node_3["port"])+'##################')
print(str(redis_conn_1.execute_command('cluster info'), encoding = "utf-8").split("\n")[0])

#slave cluster meet
redis_conn_1.execute_command("cluster meet {0} {1}".format(node_4["host"],node_4["port"]))
redis_conn_2.execute_command("cluster meet {0} {1}".format(node_5["host"],node_5["port"]))
redis_conn_3.execute_command("cluster meet {0} {1}".format(node_6["host"],node_6["port"]))


#cluster nodes
print(str(redis_conn_1.execute_command('cluster nodes'), encoding = "utf-8"))

Examples

Such a cluster Redis, from installation to installation instance cluster, environmental dependency itself is no problem, then the build process is substantially complete within 1 minute.

Guess you like

Origin www.linuxidc.com/Linux/2019-09/160732.htm