colocation facility

Os:rhel 6.5 64bitcorosync:1.4.7--yum Mode installationpacemaker:1.1.2--Automatic installation as a Corosync dependency packPacemaker is the product of heartbeat development to 3.0 independent, Red Hat 6.0 series, using Yum to install Corosync, the default is to install Pacemaker as CRM.Pacemaker Common Configuration tool: Crmsh PCsCrmsh need to install RPM packages independentlyMain configuration files:/etc/corosync/corosync.conf/etc/crm/crm.confExperimental Host: A BResource RA provider (crm->r

) configure# primitive webip ipaddr params ip=192.168.1.10 nic=eth0 Cidr_netmask=24crm (live) configure# primitive Ldirectord lsb:ldirectord op start timeout=15s interval=0 op stop timeout=15s Interval=0crm (Live) configure# colocation webip_with_ldirectord Inf:webip Ldirectordcrm (live) configure# order Ldirectord_after_webip Inf:webip Ldirectordcrm (Live) configure# Verifycrm (live) configure# commitProfile Paste-OutCRM (Live) configure#shownodenode

OCF:HEARTBEAT:IPADDR2 params ip= "192.168.1.10" nic= "eth0:0"CRM (Live) #Configure primitive Mfsmaster Lsb:mfsmasterCRM (Live) #Configure monitor Mfsmaster 30s:30sCRM (Live) #Configure group Mfsmaster_group MFSMASTER_VIP Mfsmaster_fs MfsmasterCRM (Live) #Configure Ms Mfsmaster_drbd_ms MFSMASTER_DRBD meta master-max= "1" master-node-max= "1" clone-max= "2" Clone-node-max = "1" notify= "true"CRM (Live) #Configure colocation Mfsmaster_colo inf:mfsmaster

video viewing pool and a generic cluster2, late-Database Partitioning-Divided into shards, different user designations to different shards-Diffusion read/write-Better cache location means less IO-30% reduction in hardware-Reduced backup latency to 0-can now arbitrarily improve the scalability of the databaseData Center Policies1, relies on credit cards, so initially only managed hosting providers can be used2, managed hosting provider cannot provide scalability, cannot control hardware or use g

logic (exchanges and bindings) from message queueing (queues ). multicast relates only to routing from message publishers to message queues, and as a routing optimisation can be completely physically decoupled from AMQP's logical semantics. further optimisations include physical separation of exchange from queue or even colocation of queue with a consumer application. Transactional publication and acknowledgementAMQP supports transactional publicati

NODE02[[Email protected] ~]# pcs resource create Clusterip ocf:heartbeat:IPaddr2 nic=ens34 ip=10.10.10.8 cidr_netmask=32 op mo Nitor interval=30s#安装http服务#node02需要同样配置[Email protected] ~]# yum-y install httpd#编辑apache首页#node02需要同样配置 (change node01 to NODE02 on Node2)[Email protected] ~]# vi/var/www/html/index.html#配置apache的URL;#为了监视您的Apache实例的健康和恢复它如果失败, the pacemaker assumes the URL of the state of the resource proxy used.#node02需要同样配置[Email protected] ~]# vi/etc/httpd/conf/httpd.confSetHandle

--name My_cluster controller1 controller2 controller3pcs cluster enable--All #集群自启动 #pcs clsuter start--All # Start the cluster pcs cluster status #集群状态 # test Corosync-cfgtool-s #验证corosynccorosync-cmapctl|grepMembers #查看成员pcs status Corosync #查看corosync状态crm_verify-L-V #检查配置pcs Property Set Stonith-enabled=false#禁用STONITHpcs Property Set No-quorum-policy=Ignore #无仲裁时, select Ignore # Create VIP Resource pcs resource create VIP OCF:HEARTBEAT:IPADDR2 IP=10.2.1.10cidr_netmask= -OP Monitor interva

escaping internationalized characters 40916.5.5 modal switchover in URI 41016.6 Other places to consider 41016.6.1 First and non-canonical data 41016.6.2 Date 41116.6.3 Domain 41116.7 More Information 41116.7.1 Appendix 41116.7.2 internationalization of the Internet 41116.7.3 International Standard 41217th Chapter Content Negotiation and transcoding 41317.1 Content Negotiation Technology 41417.2 Client-driven negotiation 41517.3 Server-Driven negotiation 41517.3.1 content Negotiation Header set

One, high availability principleSystem availability = Average trouble-free time/(mean time to repair + average no downtime)Improve system availability:Reduced mean time to repair (redundancy mechanism)Extended mean time-to-average trouble-freeMethods of improving system availability:HA cluster:Manually switchAutomatic switchingCluster switching:Failover: Failoverfailback: Fix TransferCluster resources:Vip:float IPIpvs rulesConstraint type:Position constraint (location)Permutation constraints (

single-threaded and usually runs on smaller servers and backups are asynchronous, so slaves will lag far behind master-Update causes cache invalidation, slow I/O on hard disk causes slow backup-Using a backup architecture requires a lot of money to get increased write performanceOne solution for-youtube is to prioritize transfers by dividing the data into two clusters: a video viewing pool and a generic cluster2, late-Database Partitioning-Divided into shards, different user designations to dif

, and order constraintsCRM (Live) configure#CRM (Live) configure#D. Defining MySQL ResourcesCRM (Live) configure#E. Defining VIPsCRM (Live) configure# primitive Myip ocf:heartbeat:IPaddr params ip=192.168.1.60 nic=eth0 CIDR_NETMASK=255.255.255.0CRM (live) configure# colocation myip_with_ms_mysqldrbd inf:ms_mysqldrbd:Master myipvip and DRBD master node together, here the boot order does not matter CRM (live) configure# Verifycrm (live) configure# commi

Environment: PIX515e and Redhat 8.0I. linux Configuration:1. vi/etc/sysconfig/syslog (press I to enter the vi editing status, Press ESC to return to the command line status after the editing is complete, and then enter: wq to save the disk and exit, if you do not save the disk, enter: q) Modify the code: SYSLOGD_OPTIONS = "-m 0" to the Code: SYSLOGD_OPTIONS = "-r-m 0" //-r allows message writing from a remote host 2. vi/etc/syslog. conf Add the following content Record all logs of

Describes the basic use of the log system (logging facility) in Ace. I. IntroductionI have previously introduced an open-source log system log4cplus, and ACE also has its own logging facility, similar to log4cplus. Ace Log SystemIt also features thread security, flexibility, and hierarchical display. It can be used for program debugging, running, testing, and maintenance throughout the entire life cycle.In

trace. warn and trace. write. the only difference between these methods is that the warn method displays its text in red, thus allowing the programmer a basic facility to differentiate between the severity of tracing messages. finally at the page level you may change the order of presentation of trace messages from the default time order ('sortbytime') to be based on an alternate via the tracemode attribute. in fact the only other option is 'sortbyca

is ready for transmission, use the TCP/udp46224 port to start the tsunamiudp server and provide all the files to the temporary raid0 storage array: Tsunamid -- Port 46224/mnt/bigephemeral /*2. Set the tsunami UDP client (1) Start an amazonlinux instance in US-East-1 (Virginia. To check whether this instance is of the same type as an instance we previously had in the ap-northeast-1 facility, you can use the cloudformation template mentioned earlier, b

Area DescriptionBeing well known for its highly innovative products, Merck wocould definitely be a good target for industrial espionage. to protect its brand-new research and development facility the company has installed the latest system of surveillance robots patrolling the area. these robots move along the walls of the facility and report suspicous observations to the Central Security Office. the only f

.(1) openlog functionsThe declaration of this function is as follows:Void openlog (const char * ident, int option, int facility );This function is used to open a connection to the system logging program. after it is enabled, you can use the syslog or vsyslog function to add information to the system logs. The closelog function is used to close the connection.The first ident parameter of openlog is a tag. the string represented by ident is added to the

--> Test data: @ t Declare @ t table (ID int, name varchar (12), fid int) Insert into @ t Select 10001, 'road cleaning ', 10000 Union all Select 10002, 'pavement ', 10000 Union all Select 10003, 'roadbed ', 10000 Union all Select 10004, 'bridge and tunnel Han ', 10000 Union all Select 10005, 'facilities along the Line', 10000 Union all Select 10006, 'electromechanical facility ', 10000 Union all Select 10007, 'green', 10000 Union all Select 10008, 'me

/11.2.0/rdbms/mesg/ulus. msb ./ Run sqlldr in the test user: $ SqlldrConfigure IMP/EXP Log on as a root user and copy related files from the Oracle server. # Cd/opt/oracle/instantclient_11_2/ # Scp 192.168.21.16:/oracle/orahome/product/11.2.0/bin/imp ./ # Scp192.168.21.16:/oracle/orahome/product/11.2.0/bin/exp ./ # Cd rdbms/mesg/ # Scp192.168.21.16:/oracle/orahome/product/11.2.0/rdbms/mesg/impus. msb ./ # Scp 192.168.21.16:/oracle/orahome/product/10.2.0/rdbms/mesg/expus. msb ./ Appendix Install

(N) AP > Setup > Invoice > Distribution Sets (define allocation set) You can use a distribution Set to automatically enter distributions for the invoice when isNot matching it to a purchase order. For example, you can create a advertising supplier aDistribution Set that allocates advertising expense on an invoice to four advertising departments.You can assign a default distribution Set to a supplier site so payables would use it for every invoice You enter the for that supplier site. If You don