Paredicma Manual
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PAREDICMA (Python Automatic REDIs Cluster MAker & MAnager ) Target of Program(Paredicma) : Redis cluster monitoring,management and maintenance, as possible as easy and comfortable. OS Version : Redhat/Centos 6,7 or Ubuntu/Debian Redis Version : Redis 5.0.0 or above Prerequirements : sshd ( with passwordless ssh-keygen auth. between servers for OS user ), python (2.6 or above), numactl( if you want to use dedicate cpu-core ) 1- Download and extract : Download -> paredicma.tar.gz ( from github/paredicma/V1) extract -> tar -xvf paredicma.tar.gz -> cd paredicma 2- Installation : You do not need to install it, just configure and run it. 3- Configuration : a-) Configure pareNodeList.py file, change ip, port, cpu core and max_memory per node, according to your cluster. vi pareNodeList.py ######################pareNodeList.py ######################## #!/usr/bin/python #-*- coding: utf-8 -*##################NODES################################ ###pareNodes=[['node01_ip'],['node01_port'],['node01_cores:semicoma-separate'],['maxmemory'],[isActive]] pareNodes = [] pareNodes.append([['10.0.0.1'],['7771'],['28,29'],['3gb'],True]) pareNodes.append([['10.0.0.1'],['7772'],['30,31'],['3gb'],True]) pareNodes.append([['10.0.0.1'],['7773'],['20,21'],['3gb'],True]) pareNodes.append([['10.0.0.1'],['7774'],['22,23'],['3gb'],True]) pareNodes.append([['10.0.0.2'],['7771'],['16,17'],['3gb'],True]) pareNodes.append([['10.0.0.2'],['7772'],['18,19'],['3gb'],True]) pareNodes.append([['10.0.0.2'],['7773'],['24,25'],['3gb'],True]) pareNodes.append([['10.0.0.2'],['7774'],['26,27'],['3gb'],True]) ######################pareNodeList.py ######################## b-) Configure pareConfig.py file, according to your cluster vi pareConfig.py ######################pareConfig.py ######################## from pareNodeList import * ##################PARAMETERS################################ projectName='testProject' redisDataDir = '/home/hiccup/'+projectName+'/' redisConfigDir = '/home/hiccup/'+projectName+'/' redisLogDir = '/home/hiccup/'+projectName+'/' redisVersion = '5.0.2' redisTarFile = 'redis-5.0.2.tar.gz' redisBinaryDir = '/home/hiccup/reBin/redis-'+redisVersion+'/' doCompile = True doStartNodes = True unixSocketDir = '/tmp/' pidFileDir = '/var/run/' writePareLogFile = True pareLogFile = 'paredicma.log' pareTmpDir = 'temparedicma/' pareServerIp = '10.0.0.2' # The server which you run "paredicma-cli.py" pareOSUser = 'hiccup' ##'hiccup' rdb = 'on' ## on/off rdbValue = 'save 3600 1000\nsave 1800 10000\nsave 600 100000' aof = 'on' ## on/off aofValue = 'appendfsync everysec' redisCluster = 'on' ## on/off clusterNodeTimeout = 'cluster-node-timeout 5000' clusterParameters = 'cluster-replica-validity-factor 0\ncluster-migration-barrier 1' maxMemory = 'on' ## on/off dedicateCore = True ## on/off redisPwdAuthentication = True ## on/off redisPwd = 'my1Laydy7darbanville5*' redisParameters = ''' daemonize yes slowlog-log-slower-than 1000 latency-monitor-threshold 100 slowlog-max-len 10 rename-command FLUSHALL "Ahsa5sMdbuva7_avsvs*1**" rename-command FLUSHDB "Ahsa5sMdbuva7_avsvs*1" ''' ######################pareConfig.py ######################## 4 - run program python paredicma-cli.py Paredicma Main Menu: or If you have already made a cluster Making Paradicma Redis Cluster python paredicma-cli.py Choose 4 (Redis Cluster Maker - ( paredicma )): Set cluster replication factor Accept redis cluster configuration ( yes ) Check the result. Paradicma Redis Cluster Monitoring Choose Redis Cluster Monitor Menu : 1- Ping Node(s) : This option ping all nodes. 2- List Node(s) : This option shows current nodes status. 3- Node(s) Info ( Choose node id and category ): You can see redis node details with using this command. 4- Server Info : It shows details information about specific server. 5- Slots Info: This option shows current slot distribution. 6- Cluster State : This option shows that If redis Cluster OK or fail from each nodes. 7- Show Memory Usage : This option shows current memory usage on redis Cluster Paradicma Redis Cluster Manager Choose Redis Cluster Manager Menu : 1- Start/Stop/Restart Redis Node : Chose a specific node then chose command (start/stop/restart ) 2- Switch Master/Slave Nodes : This option switches specific master node with slave node 3- Change Redis Configuration Parameter: With this option, you can change redis configuration for both all node or a specific node. 4- Save Redis Configuration to redis.conf: With this option, you can write redis configuration changes to redis.conf file both all node or a specific node. 5- Rolling Restart : This option restart all cluster nodes sequentially. 6- Command for all nodes : Using with this option, you can run a command for all cluster nodes or all cluster master nodes. Paradicma Redis Cluster Migration&Upgrade&Maintenance Choose Redis Cluster MUM Menu : 1- Add/Delete Redis Node : Using with this option, You can add new master/slave node to your redis cluster. There are 3 different choise in this option. a) Add Master Node : Choose 1 ( add ); Enter IP address; Enter Port ; give max memory; attain specific cpu core(s); choose yes (for master) b) Add Slave Node: Choose 1 ( add ); Enter IP address; Enter Port ; give max memory; attain specific cpu core(s); choose no (for slave) ; choose no ( Non-specific Slave of Master ) c) Add Slave Node to Specific Master: Choose 1 ( add ); Enter IP address; Enter Port ; give max memory; attain specific cpu core(s); choose no (for slave) ; choose yes ( for specific Slave of Master ); enter Master Id (which you want to replicate) d- Delete Redis Node : Enter Node Number and press enter. 2- Move Slot(s) : Using with this option, you can move some slot from one node to another node. Enter FROM node Id; Enter TO node id; Enter slot number 3- Redis Cluster Nodes Version Upgrade Copy new redis tar file to paredicma directory # cd paredicma # cp /tmp/redis-5.0.3.tar.gz . Run paredicma again # python paredicma-cli.py Choose menu 3 (paredicmum ) Chose 3 for version upgrade; Enter Redis tar file name ; Check the results … … 4- Redis Cluster Nodes Version Control : This option shows old cluster nodes’ version 5- Maintain Server: This option shutdown all redis nodes for specific server which you want to maintain. Enter server IP address; press enter 6- Migrate Date From Remote Redis: This option migrates whole data from non-clustered redis server to this redis cluster. Enter target redis IP addres; Enter target redis Port 7- Cluster Slot (Load) Balancer: Using with this option, you can distribute redis slots on redis cluster. There are two choise : 1 – distribute slots to all nodes as possible as equal 2 - distribute slots according to nodes memory size a) Node Base Slot Balance: Redis cluster slots, before distribution Choose 1 (node base); Set max slot limit or enter 0 for until all slots balanced. Slots are balanced, as possible as equal, for each node b-) Memory Base Slot Balance Choose 2 (memory base); Set max slot limit or enter 0 for until all slots balanced. Slots are balanced according to their memory usage
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