zigbee ha

{State SLAVEInterface eth0Mcast_src_ip 192.168.115.177VIRTUAL_ROUTER_ID 51Priority 99Advert_int 1Authentication {Auth_type PASSAuth_pass 1111}virtual_ipaddress {192.168.115.180}Track_script {Chk_http_port}}Write scripts under/opt chk_nginx.sh(required for two nginx servers)#!/bin/bashcounter=$ (ps-c nginx--no-heading|wc-l)if ["${counter}" = "0"]; ThenService Nginx RestartSleep 2counter=$ (ps-c nginx--no-heading|wc-l)if ["${counter}" = "0"]; ThenService keepalived StopFiFiGive permissions and Ex

Print ('\ n'. Join (['. '. "(' Love'[(x-y)% len (' Love'ifelse' for in for in range (30,-30,-1)])in one line of code, my love for you print ( ' \ n ". Join ([" . Join ([" * " if abs ((lambda A: lambda Z, C, N:a (A, z, C, N)) (lambda s, Z, C, n:z if n = = 0 else s (S, Z*z+c, C, n-1)) (0, 0.02*x+0.05j*y, +)) else " " for x in Range ( -80, x)]) For y in Range ( -20,)]) Python Mandelbrot ImagesSmall Ha Co python----A line of

requirements with WMwareA. Create two virtual machines and install the operating system, which is not described here;B. Add a network card to two blocks per virtual machine:The network card is added by means of Nat.For more information, please visit: http://blog.csdn.net/u013474104/article/details/43731153Effect:Note: Two NICs are required for each server.C. Storage environment, set when installed, as long as a server SAN/NAS/ISCSI storage as a data sharing storage space;3. Software Requirement

MASTER #辅改成BACKUPInterface eth0VIRTUAL_ROUTER_ID 51Priority #辅改成50Advert_int 1Authentication {Auth_type PASSAuth_pass 1111}virtual_ipaddress {192.168.6.105}}Service keepalived StartWeb:mount-t NFS 192.168.6.1:/home/shares/shares4.ssh Password-Free loginSsh-keygenSsh-copy-id5.shell ScriptCd/etc/keepalivedVim notify_master.sh #判断NFS端口是否存在, stop keepalived service if not present#!/bin/bashport= ' Netstat-anp|grep 2049 'If ["$port" = = ""];then/sbin/service keepalived StopFiVim change.sh (required

:0txqueuelen:0 rxbytes:1112 (1.0kib) TXbytes:1112 (1.0kib) Node2 also need to do the same double-click Trust, the same operation, no longer demonstrated here2, configure the Epel source of the cluster softwareNode1[Email protected] ~]# cd/etc/yum.repos.d/[[email protected] yum.repos.d]# wget http://clusterlabs.org/rpm/epel-5/ Clusterlabs.repo [[email protected] yum.repos.d]# Yum install-y pacemaker CorosyncNode2[Email protected] ~]# cd/etc/yum.repos.d/[[email protected] yum.repos.d]# wget http

//sort 10 of 0-100 between numbers//defining an int array//this generates an array of 101 arrays that are expected to correspond to the input values to the index corresponding to the array, such as input 10 corresponding to a[10] inta[101]; //Array Assignment Generation for(inti =0; I 101; i++) {A[i]=0; } //declaring Variables intx; //Loop input 10 digits for(inti =0; I Ten; i++) { //Read input valuescanf"%d",x); //the value of the i

/memcachedchown-r memcached:/var/run/memcached vi/etc/init.d/memcached #添加下面行PORT =11211 user=memcached #ChangeMAXCONN =1024 cachesize=128 #根据本机内存修改OPTIONS = "" I p= ' ifconfig |grep ' inet addr ' |awk-f ': ' "inet addr" {print $} ' |sed-n 1p|awk ' {print $ ' #添加, get Ipchown $USER/usr/loc al/bin/memcached #找到下面一行/usr/local/bin/memcached–d-l $IP –p $PORT –u $USER –m $CACHESIZE –c $MAXCONN –P/VAR/RUN/MEMCAC Hed/memcached.pid $OPTIONS 5, start Memcache Chkconfig--add memcachedchkconfig memcached o

First, Redis-sentinel ha framework to build For a detailed setup process, please refer to another article with the following address: Click to open the link Second, the introduction of a dependent jar package Third, spring configuration file Iv. redis.properties configuration Files redis.maxtotal=100 redis.sentinel.host1=127.0.0.1 redis.sentinel.host2=127.0.0.1 redis.sentinel.host3=127.0.0.1 redis.sentinel.port1=26379 redis.sentinel.port2=26479 r

To deploy the logical schema: HDFS HA Deployment Physical architecture Attention: Journalnode uses very few resources, even in the actual production environment, but also Journalnode and Datanode deployed on the same machine; in the production environment, it is recommended that the main standby namenode each individual machine. Yarn Deployment Schema: Personal Experiment Environment deployment diagram： Ubuntu12 32bit Apache Hadoop 2.2.0 jdk

If there is a place to look at the mask, take a look at the HDFs ha this articleThe official scheme is as follows Configuration target: Node1 Node2 Node3:3 Station ZookeeperNode1 Node2:2 sets of ResourceManager First configure Node1, configure Etc/hadoop/yarn-site.xml: Configuration etc/hadoop/mapred-site.xml: Copy the Node1 2 configuration files (SCP command) to 4 other machines Then start the yarn:start-yarn.sh on the Node1 (at the same time st

This is just part of the note, the master hangs up and cuts to the repository.Master:192.168. 1.111 from: 192.168. 1.222Primary serversudo apt-get Install rsyncFrom the serversudo apt-get install Rsyncsudo apt-get install Openssh-serverMaster dbCreate usersudo-'123456'; \q exitModifying a configuration fileVim/etc/postgresql/9.x/main/pg_hba.conf0.0. 0.0/0 MD5Vim/etc/postgresql/9.x/main/postgresql.conf" * " =3From DBSet the Postgres system account password to use when the user remotely rsyncVi

Label:Ha, which only monitors and manages the database at the operating system level, is generally used only for single-instance databases. The advantages are convenient management, convenient application development (developer convenience), and less project input. The disadvantage is that it has all the disadvantages of single-instance database: Poor fault tolerance, poor endurance, small user capacity and so on.RAC, the database itself provides a single database multi-instance application meth

'%semi% ';Mysql> SHOW GLOBAL STATUS like '%semi% ';MariaDB [(None)]> show variables like '%semi% ';+------------------------------------+-------+| variable_name | Value |+------------------------------------+-------+| rpl_semi_sync_master_enabled | On | Enable the Master node for version Synchronization| Rpl_semi_sync_master_timeout | 10000 || Rpl_semi_sync_master_trace_level | 32 | Trace Level 32| Rpl_semi_sync_master_wait_no_slave | On | Allows master to wait for the receipt signal of slave a

1, HA cluster introductionHa (high available) is highly available and is also known as a dual-machine hot standby for critical business. As can be understood, there are two machines A and B, under normal circumstances, a provides services, B standby idle, when a down or service outage, will switch to B machine continue to provide the service. Commonly used high-availability open source software has heartbeat and keepalived, where keepalived has load-b

Generally, there are three types of Server clusters: HA clusters can replace disk arrays to provide hot backup between cluster nodes; The LB cluster can provide dynamic loads and virtual hosts; HP clusters provide high-performance computing clusters. HA, as a high-availability cluster, provides continuous service assurance. In the past few days, a project has used a Linux cluster and the configuration proce

HA (High available) is a highly available, also known as dual-machine hot standby for critical business. The simple understanding is that there are two machines A and B, normally a service, B standby idle, when a down or service outage, will switch to the B machine to continue to provide services. Commonly used high-availability open source software has heartbeat and keepalived, where keepalived has load-balanced functionality. Below we use heartbeat

Test environment:5 nodes ((controller,2 network,2 compute nodes))Using Vxlan+linux Bridge Determine that all neutron and Nova services are running Nova service-listNeutron agent-list2. Creation of 2 networksA) neutron net-create privateNeutron subnet-create–name private-subnet Private 10.0.0.0/29b) Neutron net-create private1Neutron subnet-create–name private1-subnet private1 10.0.1.0/293. Create a shared public network to connect to the physical network Physnet1Neutron net-create–

DAS.ALLOWNETWORKX-Allows specific management networks to be specified for vsphere ha's heartbeat network, x can be Arabic numerals 0-9. This option is not valid when the Vsan function is activated in 5.5. Das.ignoreredundantnetwarning-If ESXi host under vsphere Ha management does not have redundant networks, it will be alerted, so you can skip the alert with this parameter; Das.heartbeatdsperhost-vsphere ha